/* Modern Step Up Badminton Club Styles */

/* Reset and Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    padding-top: 90px;
    min-height: 100vh;
    /* モバイル用の軽量背景 */
    background: linear-gradient(135deg, 
        #667eea 0%, 
        #764ba2 15%, 
        #f093fb 30%, 
        #f5576c 45%, 
        #4facfe 60%, 
        #00f2fe 75%, 
        #a8edea 90%, 
        #fed6e3 100%);
    background-size: 200% 200%;
}

/* デスクトップ用のアニメーション背景 */
@media (min-width: 769px) {
    body {
        background-size: 400% 400%;
        animation: gradientShift 15s ease infinite;
        background-attachment: fixed;
    }
}

/* モバイル用の静的背景（アニメーションなし） */
@media (max-width: 768px) {
    body {
        background-attachment: scroll; /* fixedを避ける */
        animation: none; /* アニメーションを無効化 */
        background-size: 100% 100%; /* 軽量化 */
    }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* デスクトップのみ - 浮遊背景要素 */
@media (min-width: 769px) {
    body::before {
        content: '';
        position: fixed;
        top: -50%;
        left: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, 
            rgba(102, 126, 234, 0.03) 0%, 
            transparent 50%);
        animation: floatRotate 30s linear infinite;
        z-index: -2;
        pointer-events: none;
    }

    body::after {
        content: '';
        position: fixed;
        top: -50%;
        right: -50%;
        width: 200%;
        height: 200%;
        background: radial-gradient(circle, 
            rgba(168, 237, 234, 0.04) 0%, 
            transparent 50%);
        animation: floatRotate 40s linear infinite reverse;
        z-index: -2;
        pointer-events: none;
    }
}

/* モバイルでは浮遊要素を無効化 */
@media (max-width: 768px) {
    body::before,
    body::after {
        display: none;
    }
}

@keyframes floatRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* PC-only line breaks - default visible on desktop */
.pc-only-br {
    display: inline;
}

/* モバイルデバイス専用の最適化 */
@media (max-width: 768px) {
    /* ハードウェアアクセラレーションを有効化 */
    .header,
    .main-content,
    .hero-section {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
        will-change: transform;
    }
    
    /* 重いアニメーションを無効化 */
    @keyframes gradientShift {
        0%, 100% { background-position: 0% 50%; }
    }
    
    @keyframes floatRotate {
        0%, 100% { transform: rotate(0deg); }
    }
    
    @keyframes stepUpBounce {
        0%, 100% { transform: translateY(0) rotate(0deg); }
    }
    
    /* セクションの背景を軽量化 */
    section::before {
        opacity: 0.5;
    }
    
    section:nth-child(even),
    section:nth-child(odd) {
        background: rgba(255, 255, 255, 0.8);
    }
}

/* Android専用の最適化 */
.android-device {
    /* レンダリング最適化 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeSpeed;
}

.android-device * {
    /* パフォーマンス向上 */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

/* 全ページでアニメーションを完全に無効化 */
* {
    animation: none !important;
    -webkit-animation: none !important;
    -moz-animation: none !important;
    -o-animation: none !important;
    -ms-animation: none !important;
    transition: none !important;
    -webkit-transition: none !important;
    -moz-transition: none !important;
    -o-transition: none !important;
    -ms-transition: none !important;
}

/* ホバー効果も無効化 */
*:hover {
    transform: none !important;
    -webkit-transform: none !important;
}





/* ===== EMERGENCY FIX: FORCE DESKTOP HEADER DISPLAY ===== */

/* Override ALL possible CSS conflicts - highest priority */
.header,
.header *,
.navbar,
.navbar *,
.navbar .container,
.navbar .container * {
    visibility: visible !important;
    opacity: 1 !important;
    position: relative !important;
}

/* Force grid layout on navbar container - 3 column layout */
.navbar .container {
    display: grid !important;
    grid-template-columns: auto 1fr auto !important;
    grid-template-areas: "brand spacer main" !important;
    align-items: center !important;
    justify-items: stretch !important;
    gap: 2rem !important;
    width: 100% !important;
    max-width: 1200px !important;
    margin: 0 auto !important;
    padding: 0 20px !important;
}

/* Assign grid areas and force display */
.nav-brand {
    grid-area: brand !important;
    display: flex !important;
    justify-self: start !important;
}

.main-nav {
    grid-area: main !important;
    display: flex !important;
    justify-self: end !important;
}

.mobile-toggle {
    display: none !important;
}

/* Force all nested elements to display */
.nav-menu,
.nav-item,
.nav-btn {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Force text to show on desktop */
.nav-btn span,
.brand-text {
    display: inline !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Brand text elements should follow their container's flex layout */
.brand-main,
.brand-sub {
    visibility: visible !important;
    opacity: 1 !important;
}

/* CRITICAL: Force all header elements to be visible on all screen sizes */
.header {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.navbar {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.navbar .container {
    display: grid !important;
    grid-template-columns: auto 1fr auto auto !important;
    visibility: visible !important;
    opacity: 1 !important;
    align-items: center !important;
    gap: 2rem !important;
    width: 100% !important;
}

/* Force all navigation elements to be visible */
.nav-brand {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    justify-self: start !important;
}

.main-nav {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    justify-self: center !important;
}

.nav-menu {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.header-actions {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    justify-self: end !important;
}

.quick-nav {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Ensure nav items and buttons are visible */
.nav-item,
.nav-btn,
.quick-nav-btn {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Ensure text spans are visible on desktop */
.nav-btn span,
.quick-nav-btn span {
    display: inline !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Hide mobile elements on desktop */
.mobile-nav {
    display: none;
}

.mobile-toggle {
    display: none;
}

.mobile-nav.active {
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

/* Section spacing with colored backgrounds */
section {
    padding: 3rem 0;
    margin: 0;
    position: relative;
}

section:nth-child(even) {
    background: linear-gradient(135deg, 
        rgba(168, 237, 234, 0.08) 0%,
        rgba(254, 214, 227, 0.05) 50%,
        rgba(102, 126, 234, 0.06) 100%);
}

section:nth-child(odd) {
    background: linear-gradient(135deg, 
        rgba(240, 158, 255, 0.06) 0%,
        rgba(79, 172, 254, 0.08) 50%,
        rgba(168, 237, 234, 0.05) 100%);
}

section::before {
    content: '';
    position: absolute;
    top: -1rem;
    left: -20px;
    right: -20px;
    bottom: -1rem;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.03) 0%, 
        rgba(118, 75, 162, 0.03) 50%, 
        rgba(102, 126, 234, 0.03) 100%);
    border-radius: 20px;
    z-index: -1;
}

section:nth-child(even)::before {
    background: linear-gradient(135deg, 
        rgba(255, 106, 157, 0.03) 0%, 
        rgba(254, 207, 239, 0.03) 50%, 
        rgba(255, 106, 157, 0.03) 100%);
}

section:nth-child(odd)::before {
    background: linear-gradient(135deg, 
        rgba(168, 237, 234, 0.03) 0%, 
        rgba(254, 214, 227, 0.03) 50%, 
        rgba(168, 237, 234, 0.03) 100%);
}

/* Modern Color Palette */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    --accent-gradient: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    --success-gradient: linear-gradient(135deg, #d299c2 0%, #fef9d7 100%);
    
    --primary-color: #667eea;
    --secondary-color: #ff6b9d;
    --accent-color: #4ecdc4;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #95a5a6;
    
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-dark: #2c3e50;
    
    --border-light: #e2e8f0;
    --border-medium: #cbd5e0;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.12);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%,
        rgba(248, 250, 255, 0.98) 50%,
        rgba(240, 247, 255, 0.95) 100%);
    backdrop-filter: blur(25px);
    border-bottom: 1px solid rgba(102, 126, 234, 0.2);
    box-shadow: 
        0 8px 32px rgba(102, 126, 234, 0.1),
        0 2px 16px rgba(168, 237, 234, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
    z-index: 1000;
    transition: var(--transition);
    min-height: 70px;
}

.navbar {
    padding: 1rem 0;
    width: 100%;
    position: relative;
}

.navbar .container {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: 2rem;
    width: 100%;
    height: 100%;
}

.main-nav {
    justify-self: center;
    display: flex !important;
}

.nav-menu {
    display: flex !important;
}

.header-actions {
    justify-self: end;
    display: flex !important;
}

.quick-nav {
    display: flex !important;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    text-decoration: none;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    padding: 0.5rem;
    border-radius: var(--radius-md);
}

.nav-brand:hover {
    transform: translateY(-1px);
    opacity: 0.8;
}

.nav-brand:hover .brand-icon {
    transform: scale(1.05);
}

.nav-brand:hover .step-up-arrow {
    animation: stepUpHover 0.6s ease-in-out;
    transform: translateY(-2px) scale(1.1);
}

@keyframes stepUpHover {
    0% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-4px) scale(1.15) rotate(10deg);
    }
    100% {
        transform: translateY(-2px) scale(1.1);
    }
}

.nav-brand:active {
    transform: translateY(0);
}

.brand-icon {
    width: 105px;
    height: 105px;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.brand-icon i {
    font-size: 1.5rem;
    color: white;
}

/* Logo Image Styling */
.brand-icon.logo-image {
    background: transparent;
    padding: 9px;
    animation: none;
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(102, 126, 234, 0.15);
}

.club-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: calc(var(--radius-lg) - 4px);
    transition: var(--transition);
}

.nav-brand:hover .club-logo {
    transform: scale(1.05);
}

/* Shuttlecock Design (Legacy - keeping for compatibility) */
.brand-icon.shuttlecock-design {
    background: linear-gradient(135deg, 
        #667eea 0%, 
        #667eea 25%, 
        #764ba2 25%, 
        #764ba2 50%, 
        #667eea 50%, 
        #667eea 75%, 
        #764ba2 75%);
    background-size: 8px 8px;
    animation: stairStep 2s ease-in-out infinite alternate;
}

@keyframes stairStep {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 8px 8px;
    }
}

.shuttlecock {
    position: relative;
    width: 24px;
    height: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.shuttlecock-head {
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    margin-bottom: 2px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.shuttlecock-feathers {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
}

.feather {
    width: 2px;
    height: 4px;
    background: white;
    border-radius: 0 0 1px 1px;
    opacity: 0.9;
    transform-origin: bottom center;
}

.feather:nth-child(1) {
    width: 6px;
    height: 5px;
    transform: rotate(0deg);
}

.feather:nth-child(2) {
    width: 5px;
    height: 4px;
    transform: rotate(-10deg);
}

.feather:nth-child(3) {
    width: 5px;
    height: 4px;
    transform: rotate(10deg);
}

.feather:nth-child(4) {
    width: 4px;
    height: 3px;
    transform: rotate(-15deg);
}

.feather:nth-child(5) {
    width: 4px;
    height: 3px;
    transform: rotate(15deg);
}

.brand-text {
    display: flex !important;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 2px;
}

.brand-main {
    display: block;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.65rem;
    background: var(--primary-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    line-height: 1.2;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.step-up-arrow {
    display: inline-block;
    font-size: 1.4rem;
    margin-left: 0.3rem;
    background: none !important;
    color: var(--primary-color) !important;
    -webkit-background-clip: unset !important;
    background-clip: unset !important;
    animation: stepUpBounce 2s ease-in-out infinite;
    filter: drop-shadow(0 2px 4px rgba(102, 126, 234, 0.3));
}

@keyframes stepUpBounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    40% {
        transform: translateY(-3px) rotate(5deg);
    }
    60% {
        transform: translateY(-1px) rotate(-2deg);
    }
}

.brand-sub {
    display: block;
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.65rem;
    background: var(--primary-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    line-height: 1.2;
    margin-top: 3px;
}

/* Main Navigation */
.main-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    padding: 0.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(102, 126, 234, 0.15);
    box-shadow: var(--shadow-md);
}

.nav-item {
    margin: 0;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 1.4rem;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    font-size: 0.95rem;
}

.nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.6s ease;
}

.nav-btn:hover::before {
    left: 100%;
}

.nav-btn:hover {
    background: rgba(102, 126, 234, 0.08);
    color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.nav-btn.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.nav-btn.active:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.nav-btn i {
    font-size: 1.1rem;
}

/* Apply Button Styles */
.nav-btn.apply-btn {
    background: var(--secondary-gradient);
    color: white;
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
    position: relative;
}

.nav-btn.apply-btn::before {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

.nav-btn.apply-btn:hover {
    background: var(--secondary-gradient);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 0.3);
}

.nav-btn.apply-btn:active {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Mobile Apply Button in Navigation */
.mobile-apply-nav-btn {
    background: linear-gradient(135deg, rgba(255, 154, 158, 0.1) 0%, rgba(254, 207, 239, 0.1) 100%);
    border: 2px solid transparent;
}

.mobile-apply-nav-btn:hover {
    background: linear-gradient(135deg, rgba(255, 154, 158, 0.2) 0%, rgba(254, 207, 239, 0.2) 100%);
    border-color: var(--secondary-color);
}

.mobile-apply-nav-btn .mobile-btn-icon {
    background: var(--secondary-gradient);
}

.mobile-apply-nav-btn .mobile-btn-title {
    color: var(--secondary-color);
    font-weight: 700;
}

.mobile-apply-nav-btn .mobile-btn-arrow {
    color: var(--secondary-color);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
}

.quick-nav {
    display: flex;
    gap: 0.25rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.3rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(102, 126, 234, 0.15);
    box-shadow: var(--shadow-sm);
}

.quick-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1rem;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    font-size: 0.85rem;
    white-space: nowrap;
}

.quick-nav-btn:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    transform: translateY(-1px);
}

.quick-nav-btn.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-sm);
}

.quick-nav-btn i {
    font-size: 0.9rem;
}

/* Mobile Navigation */
.mobile-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-nav {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    transform: translateY(-100%);
    transition: var(--transition);
    z-index: 999;
}

.mobile-nav.active {
    transform: translateY(0);
}

.mobile-nav-content {
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid var(--border-light);
}

.mobile-nav-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.mobile-nav-close {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.mobile-nav-close:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

.mobile-menu-list {
    list-style: none;
    padding: 0;
    margin: 0;
    flex: 1;
}

.mobile-menu-item {
    margin: 0;
}

.mobile-nav-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    border: none;
    background: transparent;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    text-align: left;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.mobile-btn-icon {
    width: 45px;
    height: 45px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.mobile-btn-icon i {
    font-size: 1.2rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.mobile-btn-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.mobile-btn-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.mobile-btn-desc {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 0.1rem;
}

.mobile-btn-arrow {
    color: var(--text-light);
    font-size: 0.9rem;
    transition: var(--transition);
}

.mobile-nav-btn:hover {
    background: rgba(102, 126, 234, 0.05);
}

.mobile-nav-btn:hover .mobile-btn-icon {
    background: var(--primary-color);
    transform: scale(1.05);
}

.mobile-nav-btn:hover .mobile-btn-icon i {
    color: white;
}

.mobile-nav-btn:hover .mobile-btn-arrow {
    transform: translateX(3px);
    color: var(--primary-color);
}

.mobile-nav-btn.active {
    background: rgba(102, 126, 234, 0.1);
}

.mobile-nav-btn.active .mobile-btn-icon {
    background: var(--primary-gradient);
    box-shadow: var(--shadow-sm);
}

.mobile-nav-btn.active .mobile-btn-icon i {
    color: white;
}

.mobile-nav-btn.active .mobile-btn-title {
    color: var(--primary-color);
}

.mobile-nav-btn.active .mobile-btn-arrow {
    color: var(--primary-color);
}

.mobile-nav-divider {
    height: 1px;
    background: var(--border-light);
    margin: 0.5rem 0;
}

.mobile-cta-section {
    padding: 1.5rem;
    border-top: 1px solid var(--border-light);
    background: var(--bg-light);
}

.mobile-apply-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.2rem;
    border: none;
    background: var(--secondary-gradient);
    border-radius: var(--radius-lg);
    font-weight: 700;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.mobile-apply-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.mobile-apply-btn:hover::before {
    left: 100%;
}

.mobile-apply-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.apply-badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 0.5rem;
}

/* Main Content */
.main-content {
    min-height: 100vh;
    position: relative;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%,
        rgba(248, 250, 255, 0.9) 25%,
        rgba(240, 247, 255, 0.85) 50%,
        rgba(248, 250, 255, 0.9) 75%,
        rgba(255, 255, 255, 0.95) 100%);
    backdrop-filter: blur(15px);
    border-radius: 25px 25px 0 0;
    margin: 0;
    box-shadow: 
        0 -10px 40px rgba(102, 126, 234, 0.15),
        0 -5px 20px rgba(168, 237, 234, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
    padding-bottom: 0;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Ensure main content container fills full width */
.main-content .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Extend background to fill any vertical gaps */
.main-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: -50px;
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.95) 0%,
        rgba(248, 250, 255, 0.9) 25%,
        rgba(240, 247, 255, 0.85) 50%,
        rgba(248, 250, 255, 0.9) 75%,
        rgba(255, 255, 255, 0.95) 100%);
    backdrop-filter: blur(15px);
    z-index: -1;
    border-radius: 25px 25px 0 0;
}

/* Tab Content Styles */
.tab-content {
    display: none;
    animation: fadeInUp 0.6s ease-out;
}

.tab-content.active {
    display: block;
}

/* Section Header Normal Styles */
.section-header {
    padding: 2rem 0;
    text-align: center;
}

.section-header .container {
    text-align: center;
}

/* Hero Section adjustments for sticky header */
.hero-section {
    position: relative;
    margin-top: 0;
    padding-top: 2rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Section */
.hero-section {
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, 
        rgba(102, 126, 234, 0.1) 0%,
        rgba(168, 237, 234, 0.15) 25%,
        rgba(254, 214, 227, 0.1) 50%,
        rgba(240, 158, 255, 0.12) 75%,
        rgba(79, 172, 254, 0.08) 100%);
    animation: heroBackgroundFloat 20s ease-in-out infinite;
}

@keyframes heroBackgroundFloat {
    0%, 100% { 
        background-position: 0% 50%;
        transform: scale(1);
    }
    50% { 
        background-position: 100% 50%;
        transform: scale(1.02);
    }
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.4) 0%, 
        rgba(168, 237, 234, 0.3) 25%,
        rgba(254, 214, 227, 0.35) 50%,
        rgba(240, 158, 255, 0.3) 75%,
        rgba(79, 172, 254, 0.25) 100%);
    opacity: 0.8;
    animation: gradientPulse 8s ease-in-out infinite;
}

@keyframes gradientPulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 0.6; }
}

.pattern-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 154, 158, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 226, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 60% 70%, rgba(168, 237, 234, 0.08) 0%, transparent 40%);
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    animation: slideInLeft 0.8s ease-out;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-gradient);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.hero-badge i {
    color: #f39c12;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.title-main {
    display: block;
    color: var(--text-primary);
    font-size: 1em;
}

.title-accent {
    display: block;
    background: var(--primary-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 1.2em;
    margin: 0.2em 0;
}

.title-sub {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85em;
    font-weight: 600;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.feature-item i {
    color: var(--primary-color);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image {
    animation: slideInRight 0.8s ease-out;
}

.image-container {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: rotate(2deg);
    transition: var(--transition-slow);
}

.image-container:hover {
    transform: rotate(0deg) scale(1.02);
}

.main-illustration {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-xl);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    width: 40px;
    height: 40px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.2rem;
    animation: float 3s ease-in-out infinite;
    box-shadow: var(--shadow-md);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 1.2rem 2rem;
    font-size: 1.1rem;
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

/* Lesson Hero Illustration */
.lesson-hero-illustration {
    margin: 3rem 0;
    position: relative;
}

.illustration-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-illustration {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition);
}

.illustration-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: white;
    padding: 2rem;
    transform: translateY(100%);
    transition: var(--transition);
}

.illustration-container:hover .illustration-overlay {
    transform: translateY(0);
}

.illustration-container:hover .hero-illustration {
    transform: scale(1.05);
}

.overlay-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: white;
}

.overlay-content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--success-gradient);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* About Section */
/* Compact Layout Styles */
.tab-content.compact-layout {
    padding: 1rem 0;
}

.section-header.compact {
    padding: 1.5rem 0;
    margin-bottom: 1.5rem;
}

.section-header.compact .section-title {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.section-header.compact .section-subtitle {
    font-size: 1rem;
    margin-bottom: 0;
}

.about-main-grid {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 2rem;
    align-items: start;
    margin-bottom: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(255, 255, 255, 0.8) 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.about-visual.compact {
    position: relative;
}

.activity-illustration.compact {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.activity-illustration.compact .activity-image {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: cover;
}

.stats-mini {
    position: absolute;
    bottom: 10px;
    left: 10px;
    right: 10px;
    display: flex;
    gap: 0.5rem;
}

.mini-stat {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    text-align: center;
    flex: 1;
    box-shadow: var(--shadow-sm);
}

.mini-stat .number {
    display: block;
    font-weight: 700;
    font-size: 1rem;
    color: var(--primary-color);
}

.mini-stat .label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.about-content.compact {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mission-brief {
    background: rgba(255, 255, 255, 0.7);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
}

.compact-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.8rem;
}

.compact-text {
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
}

.target-compact {
    background: rgba(255, 255, 255, 0.7);
    padding: 1.5rem;
    border-radius: var(--radius-md);
}

.compact-subtitle {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.target-mini-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.8rem;
}

.mini-card {
    background: var(--bg-white);
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.mini-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mini-card i {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: block;
}

.mini-card span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Compact Features Section */
.features-compact {
    padding: 2rem;
    background: linear-gradient(135deg, rgba(168, 237, 234, 0.1) 0%, rgba(254, 214, 227, 0.1) 100%);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
}

.compact-features-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: var(--primary-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}

.features-horizontal {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-mini {
    background: var(--bg-white);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-mini:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.mini-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.3rem;
    color: white;
}

.mini-icon.users {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.mini-icon.fun {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

.mini-icon.growth {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.mini-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.mini-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Legacy about-hero styles (hidden) */
.about-hero {
    display: none;
}

.about-visual {
    position: relative;
}

.activity-illustration {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.activity-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-xl);
}

.stats-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stat-item {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    min-width: 80px;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.about-content {
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.catch-title {
    font-size: 2rem;
    font-weight: 700;
    background: var(--primary-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
}

/* New highlight box styles */
.highlight-box {
    background: linear-gradient(135deg, rgba(168, 237, 234, 0.1) 0%, rgba(254, 214, 227, 0.1) 100%);
    padding: 2rem;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
}

.highlight-box h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.catch-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.intro-text {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.target-audience {
    margin-top: 2rem;
}

.audience-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.audience-title i {
    color: var(--primary-color);
}

/* Modern audience cards */
.audience-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.audience-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.audience-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.audience-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.audience-card .card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.audience-card .card-icon.beginner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.audience-card .card-icon.intermediate {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

.audience-card .card-icon.health {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.audience-card h5 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.audience-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Legacy styles for backward compatibility */
.audience-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.audience-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.item-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.item-icon i {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.item-content h5 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.item-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Features Section */
.features-section {
    margin-top: 4rem;
}

.features-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.features-title i {
    color: var(--secondary-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.9) 0%,
        rgba(248, 250, 255, 0.95) 100%);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: 
        0 8px 32px rgba(102, 126, 234, 0.1),
        0 2px 16px rgba(168, 237, 234, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
    transition: var(--transition);
    border: 1px solid rgba(102, 126, 234, 0.1);
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* Modern feature cards */
.feature-card.modern-card {
    position: relative;
    overflow: hidden;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-white) 0%, rgba(102, 126, 234, 0.02) 100%);
    border: 2px solid transparent;
}

.feature-card.modern-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
}

.feature-card.modern-card:hover {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--bg-white) 0%, rgba(102, 126, 234, 0.05) 100%);
}

.feature-card.modern-card .card-highlight {
    display: inline-block;
    background: var(--primary-gradient);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 1rem;
}

/* Specific icon colors */
.card-icon.users-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.card-icon.heart-icon {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
}

.card-icon.growth-icon {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--secondary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.card-icon i {
    font-size: 1.5rem;
    color: white;
}

.card-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Lesson Info Cards */
.lesson-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.info-card {
    background: linear-gradient(135deg, 
        rgba(255, 255, 255, 0.92) 0%,
        rgba(248, 250, 255, 0.95) 50%,
        rgba(240, 247, 255, 0.92) 100%);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 
        0 8px 32px rgba(102, 126, 234, 0.12),
        0 2px 16px rgba(168, 237, 234, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    transition: var(--transition);
    border: 1px solid rgba(102, 126, 234, 0.15);
    backdrop-filter: blur(10px);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-light);
}

.header-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.header-icon i {
    font-size: 1.3rem;
    color: white;
}

.card-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 1rem;
}

/* Time Card */
.frequency {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.duration {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.note {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* Price Card */
.main-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.optional-service {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 0.5rem;
    border-left: 4px solid var(--secondary-color);
}

.service-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.1rem;
    font-size: 0.9rem;
}

.service-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 0.1rem;
}

.service-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Location Card */
.location-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.address {
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
    line-height: 1.3;
    font-size: 0.9rem;
}

.access-info h5 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.access-list {
    list-style: none;
}

.access-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.access-list i {
    color: var(--primary-color);
    font-size: 0.8rem;
}

/* Location Notices */
.location-notices {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.notice-item {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, 
        rgba(255, 193, 7, 0.1) 0%, 
        rgba(255, 235, 149, 0.08) 100%);
    border-left: 4px solid #ffc107;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(255, 193, 7, 0.1);
}

.notice-item:last-child {
    margin-bottom: 0;
}

.notice-item i {
    color: #f57f17;
    font-size: 1rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.notice-item span {
    color: var(--text-primary);
    font-size: 0.9rem;
    line-height: 1.6;
    font-weight: 500;
}

/* Schedule Section */
.schedule-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2.5rem;
}

.schedule-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.schedule-title i {
    color: var(--primary-color);
}

.schedule-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.schedule-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.schedule-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    background: white;
}

.schedule-number {
    width: 35px;
    height: 35px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    color: white;
    box-shadow: var(--shadow-sm);
}

.schedule-content h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
    font-size: 0.95rem;
}

.schedule-date {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.1rem;
}

.schedule-time {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Coach Section */
.coach-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2.5rem;
}

.coach-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.coach-title i {
    color: var(--secondary-color);
}

.coach-card {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    flex-wrap: wrap;
}

.coach-visual {
    flex-shrink: 0;
}

.coach-info {
    flex: 1;
    min-width: 0;
}

.coach-avatar {
    width: 70px;
    height: 70px;
    background: var(--secondary-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

.coach-avatar i {
    font-size: 1.8rem;
    color: white;
}

.coach-info h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.coach-count {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.level-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--success-gradient);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.level-badge i {
    color: #f39c12;
}

.level-badge span {
    font-weight: 600;
    color: var(--text-primary);
}

.coach-note {
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 1rem;
    background: var(--bg-light);
    padding: 1.2rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--secondary-color);
    margin-top: 0.5rem;
}

/* Map Section */
.map-section {
    margin-bottom: 2.5rem;
}

.map-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.map-title i {
    color: var(--accent-color);
}

.map-container {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* Contact Section */
.contact-section {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.contact-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.contact-title i {
    color: var(--primary-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.info-icon i {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.info-text h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.info-text a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.info-text a:hover {
    text-decoration: underline;
}

/* Email Instructions Styles */
.email-instructions {
    margin-top: 1rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(168, 237, 234, 0.05) 100%);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.instruction-content {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.instruction-content i {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.instruction-text p {
    margin-bottom: 0.6rem;
    line-height: 1.6;
    font-size: 0.9rem;
}

.instruction-text p:last-child {
    margin-bottom: 0;
}

.instruction-text p strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Form Styles */
.form-container {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.required {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--secondary-color);
}

.checkbox-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.checkbox-item:hover {
    background: rgba(102, 126, 234, 0.05);
}

.checkbox-item input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-medium);
    border-radius: 4px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.checkmark::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 6px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    opacity: 0;
    transition: var(--transition);
}

.checkbox-item input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-item input[type="checkbox"]:checked + .checkmark::after {
    opacity: 1;
}

.checkbox-label {
    font-weight: 500;
    color: var(--text-primary);
}

.practice-option {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 1rem;
    border: 2px solid var(--border-light);
}

.practice-option:hover {
    border-color: var(--primary-color);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, 
        #1a1a2e 0%, 
        #16213e 25%, 
        #0f3460 50%, 
        #533483 75%, 
        #7209b7 100%);
    color: white;
    padding: 3rem 0 1rem;
    position: relative;
    z-index: 1;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 -10px 40px rgba(102, 126, 234, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.footer-brand .brand-icon {
    background: var(--primary-gradient);
}

.footer-brand .brand-icon.logo-image {
    background: white;
    padding: 9px;
    width: 105px;
    height: 105px;
    border: 1px solid rgba(102, 126, 234, 0.15);
}

.footer-brand .club-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: calc(var(--radius-lg) - 6px);
}

.footer-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-contact h4,
.footer-location h4 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.contact-item,
.location-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.contact-item a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

.contact-item a:hover {
    color: white;
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}



/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    /* Compact layout responsive adjustments */
    .about-main-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1.5rem;
    }
    
    .target-mini-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .features-horizontal {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .about-hero {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .contact-content {
        display: flex !important;
        flex-direction: column !important;
        gap: 1.5rem !important;
    }
    
    /* Contact info mobile positioning - top */
    .contact-info {
        order: 1 !important;
        padding: 0 !important;
        margin-bottom: 1rem !important;
    }
    
    /* Form container mobile positioning - bottom */
    .form-container {
        order: 2 !important;
        padding: 1.5rem !important;
        margin-top: 0 !important;
    }
    
    /* Contact title mobile optimization */
    .contact-title {
        font-size: 1.4rem !important;
        flex-wrap: nowrap !important;
        white-space: nowrap !important;
    }
    
    .contact-title-text {
        font-size: 1.4rem !important;
        white-space: nowrap !important;
    }
    
    /* Contact info mobile optimization */
    .email-instructions {
        margin-top: 0.8rem !important;
        padding: 1rem !important;
        border-radius: 8px !important;
    }
    
    .instruction-text p {
        font-size: 0.85rem !important;
        line-height: 1.5 !important;
        margin-bottom: 0.5rem !important;
    }
    
    /* Mobile form optimization */
    .contact-form {
        gap: 1.2rem !important;
    }
    
    /* Mobile contact info styling */
    .info-text h4 {
        font-size: 1.1rem !important;
        margin-bottom: 0.5rem !important;
    }
    
    .info-text a {
        font-size: 0.95rem !important;
        word-break: break-all !important;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
}

/* ===== DESKTOP FIRST APPROACH ===== */
/* DEFAULT: Desktop styles (no media query = applies to all screens) */
.navbar .container {
    display: grid !important;
    grid-template-columns: auto 1fr auto !important;
    align-items: center !important;
    gap: 2rem !important;
    width: 100% !important;
}

.nav-brand,
.main-nav,
.nav-menu {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.nav-brand {
    justify-self: start !important;
}

.main-nav {
    justify-self: end !important;
}

.nav-btn span {
    display: inline !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.mobile-toggle,
.mobile-nav {
    display: none;
}

/* TABLETS ONLY: 768px to 1024px */
@media (max-width: 1024px) and (min-width: 769px) {
    .nav-btn span {
        display: none !important;
    }
    
    .nav-btn {
        padding: 0.6rem !important;
        min-width: 40px !important;
        justify-content: center !important;
    }
}

/* MOBILE ONLY: Below 768px */
@media (max-width: 768px) {
    .main-nav {
        display: none !important;
    }
    
    .mobile-toggle {
        display: flex !important;
    }
    
    .navbar .container {
        grid-template-columns: auto 1fr auto !important;
        grid-template-areas: "brand spacer mobile" !important;
    }
    
    .brand-text {
        display: flex !important;
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .nav-brand {
        justify-self: start !important;
        align-items: center;
        gap: 0.75rem;
    }
    
    /* Mobile color unification */
    .main-content {
        border-radius: 0 !important;
        background: linear-gradient(135deg, 
            rgba(102, 126, 234, 0.15) 0%,
            rgba(168, 237, 234, 0.12) 25%,
            rgba(254, 214, 227, 0.15) 50%,
            rgba(240, 158, 255, 0.12) 75%,
            rgba(79, 172, 254, 0.1) 100%) !important;
    }
    
    /* Remove white backgrounds on mobile */
    .hero-section,
    .tab-content {
        background: transparent !important;
    }
    
    /* Mobile card styling */
    .audience-card,
    .mini-card,
    .feature-mini {
        background: linear-gradient(135deg, 
            rgba(255, 255, 255, 0.25) 0%,
            rgba(248, 250, 255, 0.3) 100%) !important;
        border: 1px solid rgba(255, 255, 255, 0.3) !important;
    }
    
    /* PC-only line breaks hidden on mobile */
    .pc-only-br {
        display: none !important;
    }
    
    /* Mobile text readability improvements */
    .hero-title {
        font-size: 2rem !important;
        line-height: 1.3 !important;
    }
    
    .section-title {
        font-size: 1.7rem !important;
        line-height: 1.3 !important;
        text-align: center;
    }
    
    .section-subtitle {
        font-size: 1rem !important;
        line-height: 1.5 !important;
        text-align: center;
    }
    
    /* Mobile footer improvements */
    .footer-content {
        text-align: center !important;
        gap: 2.5rem !important;
    }
    
    .footer-brand {
        text-align: center;
    }
    
    .footer-info h3 {
        font-size: 1.4rem !important;
        line-height: 1.3 !important;
        margin-bottom: 0.8rem !important;
    }
    
    .footer-info p {
        font-size: 1rem !important;
        line-height: 1.5 !important;
    }
    
    .contact-item,
    .location-item {
        justify-content: center !important;
        flex-direction: column;
        align-items: center;
        text-align: center !important;
        gap: 0.5rem;
        font-size: 1rem !important;
        line-height: 1.5 !important;
    }
    
    .contact-item i,
    .location-item i {
        margin-bottom: 0.5rem;
        font-size: 1.2rem;
    }
    
    .contact-item a {
        font-size: 1rem !important;
        word-break: break-all;
        line-height: 1.4 !important;
    }
    
    /* Mobile location notices */
    .location-notices {
        margin-top: 1.2rem !important;
        padding-top: 0.8rem !important;
    }
    
    .notice-item {
        padding: 0.8rem !important;
        margin-bottom: 0.8rem !important;
        flex-direction: column;
        gap: 0.5rem !important;
        text-align: left;
    }
    
    .notice-item i {
        font-size: 1.1rem !important;
        align-self: flex-start;
        margin-bottom: 0.3rem;
    }
    
    .notice-item span {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
    }
}


    
    .hero-section {
        min-height: 70vh;
        padding: 2rem 0;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    section {
        padding: 3rem 0;
    }
    
    .lesson-info-grid {
        grid-template-columns: 1fr;
    }
    
    .schedule-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .checkbox-grid {
        grid-template-columns: 1fr;
    }
    
    .coach-card {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .coach-info {
        text-align: left;
    }
    
    .coach-note {
        font-size: 0.95rem;
        padding: 1rem;
    }
    
    .stats-overlay {
        position: static;
        flex-direction: row;
        justify-content: center;
        margin-top: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .brand-text {
        display: flex !important;
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
    
    /* フォームフィールドのモバイル対応 */
    .form-container {
        padding: 1rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        max-width: 80%;
        box-sizing: border-box;
        width: 80%;
        margin-right: 10%;
        margin-left: 5%;
    }
    
    .checkbox-item .checkbox-label {
        font-size: 0.9rem;
        line-height: 1.3;
    }
    
    /* モバイル専用改行 */
    .mobile-br {
        display: inline;
    }
    
    .step-up-arrow {
        font-size: 1.2rem;
        margin-left: 0.2rem;
    }
    
    /* Mobile unified colors - remove white sections */
    .main-content {
        background: linear-gradient(135deg, 
            rgba(102, 126, 234, 0.15) 0%,
            rgba(168, 237, 234, 0.12) 25%,
            rgba(254, 214, 227, 0.15) 50%,
            rgba(240, 158, 255, 0.12) 75%,
            rgba(79, 172, 254, 0.1) 100%) !important;
        backdrop-filter: blur(15px);
        border-radius: 0 !important;
        margin: 0 !important;
        box-shadow: none !important;
    }
    
    .main-content::before {
        background: linear-gradient(135deg, 
            rgba(102, 126, 234, 0.15) 0%,
            rgba(168, 237, 234, 0.12) 25%,
            rgba(254, 214, 227, 0.15) 50%,
            rgba(240, 158, 255, 0.12) 75%,
            rgba(79, 172, 254, 0.1) 100%) !important;
        border-radius: 0 !important;
    }
    
    /* Mobile sections - unified background */
    section {
        background: transparent !important;
        padding: 2rem 0;
    }
    
    /* Mobile cards - remove white backgrounds */
    .feature-card,
    .info-card,
    .schedule-section,
    .coach-section,
    .contact-section {
        background: linear-gradient(135deg, 
            rgba(255, 255, 255, 0.2) 0%,
            rgba(248, 250, 255, 0.25) 100%) !important;
        border: 1px solid rgba(255, 255, 255, 0.3) !important;
        box-shadow: 
            0 8px 32px rgba(102, 126, 234, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
    }
    
    /* Mobile text readability improvements */
    .hero-title {
        font-size: 1.8rem !important;
        line-height: 1.3 !important;
        margin-bottom: 1rem !important;
    }
    
    .hero-description {
        font-size: 1rem !important;
        line-height: 1.6 !important;
        margin-bottom: 1.5rem !important;
    }
    
    .section-title {
        font-size: 1.6rem !important;
        line-height: 1.3 !important;
        margin-bottom: 1rem !important;
    }
    
    .section-subtitle {
        font-size: 0.95rem !important;
        line-height: 1.5 !important;
        margin-bottom: 1.5rem !important;
    }
    
    /* Mobile card text improvements */
    .feature-card h4,
    .info-card h3,
    .audience-card h5 {
        font-size: 1.1rem !important;
        line-height: 1.4 !important;
        margin-bottom: 0.8rem !important;
    }
    
    .feature-card p,
    .info-card p,
    .audience-card p {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
    }
    
    /* Mobile footer text improvements */
    .footer-info h3 {
        font-size: 1.3rem !important;
        line-height: 1.3 !important;
        margin-bottom: 0.8rem !important;
    }
    
    .footer-info p {
        font-size: 0.95rem !important;
        line-height: 1.5 !important;
    }
    
    .footer-contact h4,
    .footer-location h4 {
        font-size: 1.1rem !important;
        line-height: 1.3 !important;
        margin-bottom: 1rem !important;
    }
    
    .contact-item,
    .location-item {
        justify-content: center !important;
        text-align: center !important;
        font-size: 0.95rem !important;
        line-height: 1.5 !important;
    }
    
    .contact-item a,
    .location-item span {
        text-align: center !important;
        font-size: 0.95rem !important;
        line-height: 1.5 !important;
    }
    
    /* Mobile instruction text improvements */
    .instruction-text p {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
        margin-bottom: 0.8rem !important;
    }
    
    .email-instructions {
        padding: 1rem;
        margin-top: 0.8rem;
        background: linear-gradient(135deg, 
            rgba(102, 126, 234, 0.08) 0%, 
            rgba(168, 237, 234, 0.08) 100%) !important;
    }
    
    .instruction-content {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .instruction-content i {
        align-self: flex-start;
    }
    
    /* Mobile button text improvements */
    .btn {
        font-size: 0.95rem !important;
        line-height: 1.4 !important;
        padding: 0.8rem 1.5rem !important;
    }
    
    /* Mobile navigation text improvements */
    .mobile-btn-title {
        font-size: 1rem !important;
        line-height: 1.3 !important;
    }
    
    .mobile-btn-desc {
        font-size: 0.85rem !important;
        line-height: 1.4 !important;
    }
    
    /* Mobile location notices for small screens */
    .notice-item {
        padding: 0.7rem !important;
        gap: 0.4rem !important;
    }
    
    .notice-item span {
        font-size: 0.85rem !important;
        line-height: 1.5 !important;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .audience-item {
        flex-direction: column;
        text-align: center;
    }
    
    .schedule-section,
    .coach-section,
    .contact-section {
        padding: 2rem;
    }
    
    /* Mobile lesson hero illustration */
    .lesson-hero-illustration {
        margin: 2rem 0;
    }
    
    .illustration-container {
        margin: 0 1rem;
        border-radius: var(--radius-lg);
        background: linear-gradient(135deg, 
            rgba(255, 255, 255, 0.2) 0%,
            rgba(248, 250, 255, 0.25) 100%) !important;
    }
    
    .illustration-overlay {
        padding: 1.5rem;
        background: linear-gradient(135deg, 
            rgba(102, 126, 234, 0.15) 0%,
            rgba(168, 237, 234, 0.1) 100%) !important;
    }
    
    .overlay-content h3 {
        font-size: 1.25rem;
    }
    
    .overlay-content p {
        font-size: 1rem;
    }
    
    /* Mobile hero section unified background */
    .hero-section {
        background: transparent !important;
    }
    
    .hero-background {
        background: linear-gradient(45deg, 
            rgba(102, 126, 234, 0.2) 0%,
            rgba(168, 237, 234, 0.18) 25%,
            rgba(254, 214, 227, 0.15) 50%,
            rgba(240, 158, 255, 0.18) 75%,
            rgba(79, 172, 254, 0.15) 100%) !important;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

.error-message {
    color: var(--secondary-color);
    font-size: 0.85rem;
    margin-top: 0.3rem;
}

/* Success Modal Styles */
.success-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.success-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    border-radius: var(--radius-xl);
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9);
    transition: var(--transition);
}

.success-modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
}

.modal-header i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.modal-body {
    text-align: center;
    margin-bottom: 1.5rem;
}

.modal-body p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.modal-body strong a {
    color: var(--primary-color);
    text-decoration: none;
}

.modal-body strong a:hover {
    text-decoration: underline;
}

.modal-footer {
    text-align: center;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.tab-btn:focus,
.mobile-tab-btn:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .mobile-toggle,
    .floating-elements,
    .stats-overlay {
        display: none !important;
    }
    
    .hero-section {
        min-height: auto;
        padding: 2rem 0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: black;
    }
    
    .tab-content {
        display: block !important;
    }
}

/* デスクトップではモバイル専用改行を無効 */
@media (min-width: 769px) {
    .mobile-br {
        display: none;
    }
}