/* ====================================
   NOREN Film School LP - CSS Styles
   ==================================== */

/* ====================================
   1. CSS Variables & Base Styles
   ==================================== */
:root {
    /* Color Palette - 女性向けの温かみのある配色 */
    --color-primary: #E6A9A9; /* ソフトローズ */
    --color-primary-dark: #D68989;
    --color-primary-light: #F5D4D4;
    --color-secondary: #4A4A4A; /* ソフトグレー */
    --color-text: #5A5A5A;
    --color-text-light: #8A8A8A;
    --color-background: #FFFFFF;
    --color-background-light: #FFF8F5; /* ソフトピーチ */
    --color-background-dark: #3A3A3A;
    --color-accent: #C9A4A4; /* モーヴ */
    --color-success: #A8C9A8;
    --color-error: #E89B9B;
    
    /* Typography */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-secondary: 'Noto Serif JP', serif;
    
    /* Spacing - コンパクト化 */
    --spacing-xs: 0.4rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
    --spacing-2xl: 3.5rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-width: 1200px;
}

/* ====================================
   2. Reset & Base Styles
   ==================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 14px;
}

/* モバイルメニュー開いた時のスクロールロック */
body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: var(--transition-base);
}

/* ====================================
   3. Utility Classes
   ==================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.highlight {
    color: var(--color-primary);
    font-weight: 700;
}

.emphasis {
    font-weight: 500;
    font-size: 1rem;
    margin: var(--spacing-sm) 0;
}

/* ====================================
   4. Typography
   ==================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
    font-weight: 600;
}

.section-subtitle {
    text-align: center;
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* ====================================
   5. Buttons
   ==================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all var(--transition-base);
    cursor: pointer;
    text-align: center;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

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

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

.btn-secondary:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 0.9rem 2rem;
    font-size: 1rem;
}

/* ====================================
   6. Header / Navigation
   ==================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-base);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-image {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.logo h1 {
    font-size: 1.2rem;
    color: var(--color-secondary);
    margin: 0;
    font-weight: 500;
}

.nav ul {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav a {
    font-weight: 400;
    color: var(--color-text);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
    font-size: 0.9rem;
}

.nav a:hover {
    color: var(--color-primary);
    background: var(--color-background-light);
}

.nav-cta {
    background: var(--color-primary);
    color: white !important;
    padding: 0.6rem 1.2rem !important;
    border-radius: var(--radius-md);
    font-weight: 500;
}

.nav-cta:hover {
    background: var(--color-primary-dark) !important;
    transform: translateY(-2px);
}

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--color-secondary);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    padding: var(--spacing-md);
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
    transition: all var(--transition-base);
    overflow-y: auto;
}

.mobile-menu.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

/* モバイルメニュー背景のオーバーレイ */
.mobile-menu::before {
    content: '';
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(0, 0, 0, 0.3);
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-menu.active::before {
    opacity: 1;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 500px;
    margin: 0 auto;
}

.mobile-menu a {
    display: block;
    padding: 1rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-align: center;
    background: white;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.mobile-menu a:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ====================================
   7. Hero Section
   ==================================== */
.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) 0;
    margin-top: 70px;
    background: var(--color-background-light);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-background-light) 0%, #FFFFFF 100%);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(230, 169, 169, 0.15) 0%, transparent 50%);
}

/* Video Wrapper for Vimeo */
.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-xl);
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-title {
    font-size: clamp(1.6rem, 4.5vw, 2.2rem);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    font-weight: 600;
}

.hero-subtitle {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.hero-cta {
    margin-bottom: var(--spacing-md);
}

.hero-features {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-light);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-light);
    font-size: 0.85rem;
}

.feature-item i {
    color: var(--color-primary);
    font-size: 1rem;
}

.hero-image {
    position: relative;
}

.hero-image-placeholder {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    box-shadow: var(--shadow-xl);
}

.hero-image-placeholder i {
    font-size: 5rem;
    color: white;
    margin-bottom: var(--spacing-md);
}

.hero-image-placeholder p {
    color: white;
    font-size: 1.2rem;
    text-align: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    box-shadow: var(--shadow-md);
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    color: var(--color-primary);
    font-size: 1.2rem;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* ====================================
   8. Introduction Section
   ==================================== */
.intro-section {
    padding: var(--spacing-xl) 0;
    background: white;
}

.intro-lead {
    font-size: 1rem;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.problem-list {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.problem-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    background: var(--color-background-light);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-error);
}

.problem-item i {
    color: var(--color-error);
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.problem-item p {
    font-size: 0.9rem;
    color: var(--color-text);
}

.intro-solution {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.solution-highlight {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.solution-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.benefit-card {
    background: white;
    border: 2px solid var(--color-background-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-base);
}

.benefit-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.benefit-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
    font-weight: 600;
}

.benefit-card p {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 0.85rem;
}

/* ====================================
   9. Basics Section
   ==================================== */
.basics-section {
    padding: var(--spacing-xl) 0;
    background: var(--color-background-light);
}

.basic-item {
    margin-bottom: var(--spacing-xl);
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.basic-header {
    background: linear-gradient(135deg, var(--color-secondary) 0%, #5A5A5A 100%);
    color: white;
    padding: var(--spacing-md);
    text-align: center;
}

.basic-number {
    display: inline-block;
    background: var(--color-primary);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.basic-title {
    font-size: 1.6rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.basic-subtitle {
    font-size: 0.95rem;
    opacity: 0.9;
    font-weight: 400;
}

.basic-content {
    padding: var(--spacing-md);
}

.content-heading {
    font-size: 1.3rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
    font-weight: 600;
}

.basic-text p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

/* Principles List */
.principles-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.principle-card {
    background: var(--color-background-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    border-left: 3px solid var(--color-primary);
    transition: all var(--transition-base);
}

.principle-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.principle-icon {
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xs);
}

.principle-icon i {
    font-size: 1.2rem;
    color: white;
}

.principle-card h5 {
    font-size: 1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.principle-card p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

/* Truths Grid */
.truths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.truth-card {
    background: var(--color-background-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    position: relative;
    transition: all var(--transition-base);
}

.truth-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.truth-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    box-shadow: var(--shadow-md);
}

.truth-card h5 {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin: var(--spacing-md) 0 var(--spacing-xs);
    font-weight: 600;
}

.truth-card p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Equipment Comparison */
.equipment-comparison {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background: var(--color-background-light);
    border-radius: var(--radius-lg);
}

.equipment-comparison h5 {
    font-size: 1.2rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.equipment-comparison i {
    color: var(--color-primary);
}

.equipment-note {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

/* 横スクロール対応 */
.comparison-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -var(--spacing-lg);
    padding: 0 var(--spacing-lg);
}

.comparison-table {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: #ddd;
    border-radius: var(--radius-md);
    overflow: hidden;
    min-width: 600px; /* 最小幅を設定 */
}

/* カメラリンクのスタイル */
.camera-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    font-weight: 700;
    transition: all var(--transition-base);
}

.camera-link:hover {
    color: var(--color-primary-dark);
    transform: translateX(2px);
}

.camera-link i {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* モバイルでも横スクロール表示 */
@media (max-width: 768px) {
    .comparison-table-wrapper {
        margin: 0 -var(--spacing-md);
        padding: 0 var(--spacing-md);
    }
    
    .comparison-table {
        min-width: 550px; /* モバイル用の最小幅 */
    }
    
    .comparison-row.header {
        display: grid; /* ヘッダーを表示 */
    }
    
    .equipment-note {
        font-size: 0.8rem;
    }
}

.comparison-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1.5fr;
    background: white;
}

.comparison-row.header {
    background: var(--color-secondary);
}

.comparison-row.header .comparison-cell {
    color: white;
    font-weight: 700;
}

.comparison-cell {
    padding: var(--spacing-sm);
    text-align: center;
    border-right: 1px solid #eee;
    font-size: 0.85rem;
}

.comparison-cell:last-child {
    border-right: none;
}

/* Settings Section */
.settings-section {
    margin: var(--spacing-xl) 0;
}

.settings-section h5 {
    font-size: 1.2rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.settings-section i {
    color: var(--color-primary);
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.setting-card {
    background: var(--color-background-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.setting-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.setting-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--spacing-sm);
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.setting-card h6 {
    font-size: 1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.setting-card p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.setting-card ul {
    list-style: none;
    text-align: left;
}

.setting-card li {
    padding: 0.3rem;
    font-size: 0.8rem;
    color: var(--color-text);
}

/* Framerate List */
.framerate-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.framerate-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--color-background-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.framerate-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.framerate-badge {
    flex-shrink: 0;
    background: var(--color-primary);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
}

.framerate-info strong {
    display: block;
    color: var(--color-secondary);
    font-size: 0.95rem;
    margin-bottom: 0.2rem;
}

.framerate-info p {
    color: var(--color-text-light);
    font-size: 0.8rem;
    margin: 0;
}

/* XAVC Grid */
.xavc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.xavc-card {
    background: var(--color-background-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-base);
}

.xavc-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.xavc-card.highlighted {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-background-light) 100%);
}

.xavc-card h6 {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.xavc-use {
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 0.85rem;
}

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

/* Lighting Section */
.lighting-section {
    margin: var(--spacing-xl) 0;
}

.lighting-section h5 {
    font-size: 1.2rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.lighting-elements {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.lighting-element h6 {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.light-quality-grid, .light-direction-grid, .color-temp-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.light-quality-card, .direction-card, .temp-card {
    background: var(--color-background-light);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-base);
}

.light-quality-card:hover, .direction-card:hover, .temp-card:hover {
    border-color: var(--color-primary);
    transform: scale(1.05);
}

.direction-card.highlighted {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-background-light) 100%);
}

.light-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.light-icon.hard {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: white;
}

.light-icon.soft {
    background: linear-gradient(135deg, #B0C4DE, #87CEEB);
    color: white;
}

.direction-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.temp-card strong {
    display: block;
    font-size: 1.2rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.temp-value {
    display: inline-block;
    background: var(--color-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.temp-card.warm {
    background: linear-gradient(135deg, #FFF4E6 0%, var(--color-background-light) 100%);
}

.temp-card.cool {
    background: linear-gradient(135deg, #E6F4FF 0%, var(--color-background-light) 100%);
}

/* Editing Section */
.editing-essence {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: var(--color-background-light);
    border-radius: var(--radius-lg);
}

.editing-essence h5 {
    font-size: 1.2rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.essence-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.essence-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
}

.essence-item i {
    font-size: 1.5rem;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.essence-item strong {
    display: block;
    font-size: 1rem;
    color: var(--color-secondary);
    margin-bottom: 0.2rem;
}

.essence-item p {
    color: var(--color-text-light);
    font-size: 0.85rem;
    margin: 0;
}

/* Emotion Elements */
.emotion-elements {
    margin: var(--spacing-xl) 0;
}

.emotion-elements h5 {
    font-size: 1.2rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.emotion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.emotion-card {
    background: var(--color-background-light);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.emotion-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.emotion-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.emotion-card h6 {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.emotion-card p {
    color: var(--color-text-light);
    line-height: 1.5;
    font-size: 0.85rem;
}

/* Case Study */
.case-study {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-background-light) 100%);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-primary);
}

.case-study-icon {
    display: inline-block;
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.case-study h5 {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.case-study p {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--color-text);
}

/* NOREN Approach */
.noren-approach {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background: var(--color-secondary);
    color: white;
    border-radius: var(--radius-lg);
}

.noren-approach h5 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.noren-approach p {
    font-size: 0.9rem;
    line-height: 1.7;
}

/* Basic CTA */
.basic-cta {
    margin-top: var(--spacing-xl);
    text-align: center;
}

/* ====================================
   10. Summary Section
   ==================================== */
.summary-section {
    padding: var(--spacing-xl) 0;
    background: white;
}

.summary-lead {
    font-size: 1rem;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.summary-benefits {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.summary-benefit {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-background-light);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
}

.summary-benefit i {
    font-size: 1.5rem;
    color: var(--color-primary);
    flex-shrink: 0;
}

.summary-benefit p {
    font-size: 0.95rem;
    color: var(--color-text);
    margin: 0;
}

.school-intro {
    text-align: center;
    max-width: 900px;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-background-light) 100%);
    border-radius: var(--radius-lg);
}

.school-intro h3 {
    font-size: 1.3rem;
    color: var(--color-secondary);
    line-height: 1.5;
    font-weight: 600;
}

/* Testimonials */
.testimonials {
    margin-top: var(--spacing-xl);
}

.testimonials h4 {
    font-size: 1.5rem;
    text-align: center;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.testimonial-card {
    background: var(--color-background-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.testimonial-icon {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.testimonial-author {
    font-weight: 600;
    color: var(--color-text-light);
    font-size: 0.8rem;
}

/* ====================================
   11. CTA Section
   ==================================== */
.cta-section {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-secondary) 0%, #3A3A3A 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(230, 169, 169, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.cta-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.cta-subtitle {
    font-size: 0.95rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-lg);
}

.cta-box {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 2px solid rgba(230, 169, 169, 0.3);
}

.cta-info h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin: var(--spacing-md) 0;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.cta-feature i {
    font-size: 1.2rem;
    color: var(--color-primary);
}

.cta-feature span {
    font-size: 0.9rem;
    font-weight: 500;
}

.cta-note {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-top: var(--spacing-sm);
    line-height: 1.5;
}

.cta-button-wrapper {
    margin-top: var(--spacing-md);
}

.cta-button {
    width: 100%;
    max-width: 500px;
}

.cta-disclaimer {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: var(--spacing-xs);
}

/* ====================================
   12. Footer
   ==================================== */
.footer {
    background: var(--color-secondary);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-sm);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-logo h3 {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.footer-logo p {
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-column h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    opacity: 0.8;
    transition: var(--transition-base);
    font-size: 0.85rem;
}

.footer-column a:hover {
    opacity: 1;
    color: var(--color-primary);
    padding-left: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
    font-size: 0.8rem;
}

/* ====================================
   13. Scroll to Top Button
   ==================================== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: all var(--transition-base);
    z-index: 999;
}

.scroll-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.scroll-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-4px);
}

/* ====================================
   14. Responsive Design
   ==================================== */
@media (max-width: 1024px) {
    :root {
        --spacing-2xl: 4rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-image {
        order: -1;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-logo {
        grid-column: 1 / -1;
        text-align: center;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 2rem;
    }
    
    body {
        font-size: 13px;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .logo-image {
        height: 32px;
    }
    
    .logo h1 {
        font-size: 1rem;
    }
    
    .hero {
        margin-top: 70px;
        min-height: auto;
        padding: var(--spacing-md) 0;
    }
    
    .hero-title {
        font-size: 1.4rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .hero-image-placeholder {
        min-height: 250px;
    }
    
    .section-title {
        font-size: 1.4rem;
    }
    
    .section-subtitle {
        font-size: 0.85rem;
    }
    
    .principles-list,
    .truths-grid,
    .settings-grid,
    .light-quality-grid,
    .light-direction-grid,
    .color-temp-grid,
    .emotion-grid {
        grid-template-columns: 1fr;
    }
    
    .basic-content {
        padding: var(--spacing-sm);
    }
    
    .basic-title {
        font-size: 1.3rem;
    }
    
    .content-heading {
        font-size: 1.1rem;
    }
    
    .cta-features {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-column ul {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    body {
        font-size: 12px;
    }
    
    .logo-image {
        height: 28px;
    }
    
    .logo h1 {
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.85rem;
    }
    
    .btn-large {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .hero-title {
        font-size: 1.25rem;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
    }
    
    .basic-title {
        font-size: 1.2rem;
    }
    
    .content-heading {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.25rem;
    }
    
    .basic-text p {
        font-size: 0.85rem;
    }
}

/* ====================================
   15. Animations
   ==================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* ====================================
   16. Print Styles
   ==================================== */
@media print {
    .header,
    .mobile-menu,
    .scroll-to-top,
    .cta-section,
    .footer {
        display: none;
    }
    
    .hero {
        margin-top: 0;
    }
    
    body {
        font-size: 12pt;
    }
    
    .section-title {
        page-break-after: avoid;
    }
    
    .basic-item {
        page-break-inside: avoid;
    }
}