/* ===================================
   HK Beauty Labs - Main Stylesheet
   Modern, Responsive Design
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #e8a4b8;
    --primary-dark: #d4899f;
    --primary-light: #f5d5de;
    --secondary-color: #9bb5ce;
    --secondary-dark: #7a9bb8;
    --accent-color: #f8e1a0;
    --text-color: #2d3436;
    --text-light: #636e72;
    --text-muted: #b2bec3;
    --background: #ffffff;
    --background-alt: #faf9f7;
    --background-gradient: linear-gradient(135deg, #fff5f8 0%, #f5f0ff 50%, #f0f8ff 100%);
    --card-bg: #ffffff;
    --border-color: #eee;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);

    /* Typography */
    --font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height: 1.7;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50px;

    /* Transitions */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    background: var(--background);
    line-height: var(--line-height);
    overflow-x: hidden;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--primary-dark);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-color);
}

ul {
    list-style: none;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(232, 164, 184, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(232, 164, 184, 0.5);
    color: white;
}

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

.btn-secondary:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
}

/* ===================================
   Header & Navigation
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
}

.logo-icon {
    font-size: 1.8rem;
}

.logo:hover {
    color: var(--primary-dark);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-dark);
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-color);
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
}

.hamburger::before {
    transform: translateY(-8px);
}

.hamburger::after {
    transform: translateY(6px);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--background-gradient);
    padding-top: 70px;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-color) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .highlight {
    display: block;
    font-size: 1.2em;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Floating Icons */
.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.floating-icon {
    position: absolute;
    font-size: 3rem;
    animation: float 6s ease-in-out infinite;
    animation-delay: var(--delay);
    opacity: 0.6;
}

.floating-icon:nth-child(1) { top: 20%; left: 10%; }
.floating-icon:nth-child(2) { top: 30%; right: 15%; }
.floating-icon:nth-child(3) { bottom: 30%; left: 20%; }
.floating-icon:nth-child(4) { bottom: 20%; right: 10%; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

/* ===================================
   Section Styles
   =================================== */
section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    margin: var(--spacing-sm) auto 0;
    border-radius: var(--radius-full);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

/* ===================================
   Quiz Section
   =================================== */
.quiz-section {
    background: var(--background-alt);
}

.quiz-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
}

.quiz-progress {
    margin-bottom: var(--spacing-md);
}

.progress-bar {
    height: 8px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    width: 20%;
    transition: var(--transition);
    border-radius: var(--radius-full);
}

.progress-text {
    display: block;
    text-align: center;
    margin-top: var(--spacing-xs);
    color: var(--text-light);
    font-size: 0.875rem;
}

.question {
    display: none;
    animation: fadeIn 0.5s ease;
}

.question.active {
    display: block;
}

.question h3 {
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

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

.option {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--background-alt);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-size: 1rem;
}

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

.option.selected {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

/* Quiz Result */
.quiz-result {
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.result-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
}

.result-title {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.result-type {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
}

.result-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.result-tips {
    background: var(--background-alt);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.result-tips h4 {
    margin-bottom: var(--spacing-sm);
}

.result-tips ul {
    list-style: disc;
    padding-left: var(--spacing-md);
}

.result-tips li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-light);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===================================
   Skincare Section - Tabs
   =================================== */
.tabs {
    max-width: 900px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: var(--background-alt);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    color: var(--text-color);
}

.tab-btn:hover {
    background: var(--primary-light);
}

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

.tab-pane {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

/* Info Cards */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.info-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

.info-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.info-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.card-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-weight: 500;
    color: var(--primary-dark);
}

.card-link:hover {
    color: var(--primary-color);
}

/* Accordion */
.accordion {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.accordion-item {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: var(--spacing-md);
    background: none;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.accordion-header:hover {
    background: var(--background-alt);
}

.accordion-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
    max-height: 500px;
}

.accordion-content p,
.accordion-content ul {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-light);
}

.accordion-content ul {
    list-style: disc;
    padding-left: var(--spacing-lg);
}

.accordion-content li {
    margin-bottom: var(--spacing-xs);
}

/* Seasonal Grid */
.seasonal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.seasonal-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-top: 4px solid transparent;
}

.seasonal-card:hover {
    transform: translateY(-5px);
}

.seasonal-card.spring { border-top-color: #ffb6c1; }
.seasonal-card.summer { border-top-color: #ffd700; }
.seasonal-card.autumn { border-top-color: #daa520; }
.seasonal-card.winter { border-top-color: #87ceeb; }

.seasonal-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.seasonal-card h3 {
    margin-bottom: var(--spacing-sm);
}

.seasonal-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.seasonal-card ul {
    text-align: left;
    padding-left: var(--spacing-md);
    list-style: disc;
}

.seasonal-card li {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

/* ===================================
   Makeup Section
   =================================== */
.makeup-section {
    background: var(--background-alt);
}

.makeup-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.makeup-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.makeup-image {
    height: 180px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-image {
    font-size: 4rem;
    opacity: 0.8;
}

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

.makeup-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

.makeup-content h3 {
    margin-bottom: var(--spacing-sm);
}

.makeup-content p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.makeup-steps {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.step {
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
    background: var(--background-alt);
    border-radius: var(--radius-sm);
    color: var(--text-light);
}

/* ===================================
   Ingredients Section
   =================================== */
.ingredients-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.25rem;
    background: var(--background-alt);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

.filter-btn:hover {
    background: var(--primary-light);
}

.filter-btn.active {
    background: var(--primary-color);
    color: white;
}

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

.ingredient-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.ingredient-card.hidden {
    display: none;
}

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

.ingredient-header {
    padding: var(--spacing-md);
    background: var(--background-alt);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.ingredient-header h3 {
    font-size: 1.1rem;
    margin: 0;
}

.ingredient-badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.ingredient-badge.hydrating { background: #e3f2fd; color: #1976d2; }
.ingredient-badge.brightening { background: #fff3e0; color: #f57c00; }
.ingredient-badge.anti-aging { background: #fce4ec; color: #c2185b; }
.ingredient-badge.acne { background: #e8f5e9; color: #388e3c; }

.ingredient-body {
    padding: var(--spacing-md);
}

.ingredient-body p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.ingredient-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.detail-item {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
}

.detail-label {
    font-weight: 600;
    min-width: 80px;
    color: var(--text-color);
}

.detail-value {
    color: var(--text-light);
}

/* ===================================
   Routine Section
   =================================== */
.routine-section {
    background: var(--background-alt);
}

.routine-toggle {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.routine-btn {
    padding: 1rem 2rem;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
}

.routine-btn:hover {
    border-color: var(--primary-color);
}

.routine-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.routine-content {
    display: none;
    max-width: 700px;
    margin: 0 auto;
}

.routine-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
}

.timeline-item.highlight {
    border: 2px solid var(--primary-color);
}

.timeline-marker {
    position: absolute;
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
}

.timeline-content h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.timeline-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
}

.timeline-tip {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--primary-dark);
    background: var(--primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

/* ===================================
   Tips Section
   =================================== */
.tips-carousel {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
}

.carousel-container {
    display: flex;
    overflow: hidden;
}

.tip-slide {
    min-width: 100%;
    padding: var(--spacing-lg);
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.5s ease;
}

.tip-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
}

.tip-slide h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.tip-slide p {
    color: var(--text-light);
    max-width: 500px;
    margin: 0 auto;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.carousel-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.carousel-btn:hover {
    background: var(--primary-color);
    color: white;
}

.carousel-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active {
    background: var(--primary-color);
    width: 30px;
    border-radius: var(--radius-full);
}

/* Quick Tips Grid */
.tips-quick-list {
    max-width: 800px;
    margin: 0 auto;
}

.tips-quick-list h3 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.quick-tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-sm);
}

.quick-tip {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.quick-icon {
    font-size: 1.5rem;
}

/* ===================================
   SEO Section
   =================================== */
.seo-section {
    background: var(--background-gradient);
    padding: var(--spacing-xl) 0;
}

.seo-content {
    max-width: 900px;
    margin: 0 auto;
}

.seo-content h2 {
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.75rem;
}

.seo-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.seo-content strong {
    color: var(--text-color);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--text-color);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.footer-logo:hover {
    color: var(--primary-light);
}

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

.footer-links h4,
.footer-newsletter h4 {
    color: white;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--primary-light);
}

.footer-newsletter p {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-xs);
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.newsletter-form .btn {
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
}

.footer-bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 0.85rem;
}

.footer-legal {
    display: flex;
    gap: var(--spacing-md);
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.6);
}

.footer-legal a:hover {
    color: var(--primary-light);
}

/* ===================================
   Back to Top Button
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
}

@media (max-width: 768px) {
    /* Navigation */
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-link {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--border-color);
    }

    /* Hero */
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    /* General */
    .section-title {
        font-size: 1.75rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    section {
        padding: var(--spacing-lg) 0;
    }

    /* Quiz */
    .quiz-container {
        padding: var(--spacing-md);
    }

    /* Routine */
    .routine-toggle {
        flex-direction: column;
        align-items: center;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline-marker {
        left: -30px;
        width: 25px;
        height: 25px;
        font-size: 0.75rem;
    }

    /* Footer */
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    /* Back to top */
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form .btn {
        width: 100%;
    }

    .quick-tips-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .header,
    .back-to-top,
    .hero-decoration,
    .carousel-controls {
        display: none;
    }

    body {
        font-size: 12pt;
        color: black;
        background: white;
    }

    .hero {
        min-height: auto;
        padding: 2rem 0;
    }

    section {
        page-break-inside: avoid;
    }
}

/* ===================================
   Navigation Dropdown
   =================================== */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 200px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
    padding: var(--spacing-sm) 0;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem var(--spacing-md);
    color: var(--text-color);
    font-size: 0.9rem;
}

.dropdown-menu a:hover {
    background: var(--background-alt);
    color: var(--primary-dark);
}

@media (max-width: 768px) {
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--background-alt);
        border-radius: 0;
        padding: 0;
        margin-top: 0;
    }

    .dropdown-menu a {
        padding-left: var(--spacing-lg);
    }
}

/* ===================================
   Breadcrumbs
   =================================== */
.breadcrumbs {
    background: var(--background-alt);
    padding: var(--spacing-sm) 0;
    margin-top: 70px;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    font-size: 0.9rem;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumb-list li:not(:last-child)::after {
    content: '›';
    color: var(--text-muted);
    margin-left: var(--spacing-xs);
}

.breadcrumb-list a {
    color: var(--text-light);
}

.breadcrumb-list a:hover {
    color: var(--primary-dark);
}

.breadcrumb-list li:last-child span {
    color: var(--text-color);
    font-weight: 500;
}

/* ===================================
   Contextual Intro Section
   =================================== */
.contextual-intro {
    background: var(--background);
    padding: var(--spacing-lg) 0;
}

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

.intro-content h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.intro-content p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.05rem;
}

/* ===================================
   User Guide & FAQ Section
   =================================== */
.user-guide-section {
    background: var(--background-alt);
    padding: var(--spacing-xl) 0;
}

.guide-content {
    max-width: 900px;
    margin: 0 auto;
}

.guide-content > h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.75rem;
}

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

.guide-box {
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
}

.guide-box h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-dark);
}

.guide-box p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq-section h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.faq-item {
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow);
}

.faq-item h4 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.faq-item p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
    margin: 0;
}

.faq-item a {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ===================================
   Latest Articles Section
   =================================== */
.latest-articles-section {
    background: var(--background);
    padding: var(--spacing-xl) 0;
}

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

.article-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.article-image {
    height: 160px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.article-date {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.article-content h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.article-content h3 a {
    color: var(--text-color);
}

.article-content h3 a:hover {
    color: var(--primary-dark);
}

.article-content p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.read-more {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-dark);
}

.view-all-articles {
    text-align: center;
}

/* ===================================
   Page Templates (About, Contact, etc.)
   =================================== */
.page-header {
    background: var(--background-gradient);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    color: var(--text-light);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    padding: var(--spacing-xl) 0;
}

.page-content .container {
    max-width: 900px;
}

.content-section {
    margin-bottom: var(--spacing-lg);
}

.content-section h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
    border-bottom: 2px solid var(--primary-light);
    padding-bottom: var(--spacing-sm);
}

.content-section p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.content-section ul {
    list-style: disc;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.content-section li {
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
    line-height: 1.7;
}

/* Contact Form */
.contact-form {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

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

.team-card {
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    text-align: center;
}

.team-avatar {
    width: 100px;
    height: 100px;
    background: var(--background-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin: 0 auto var(--spacing-sm);
}

.team-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
}

.team-card .role {
    color: var(--primary-dark);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.team-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Tools Page */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.tool-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.tool-icon {
    height: 120px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

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

.tool-content h3 {
    margin-bottom: var(--spacing-sm);
}

.tool-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

/* ===================================
   Blog Styles
   =================================== */
.blog-header {
    background: var(--background-gradient);
    padding: var(--spacing-xl) 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.blog-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.blog-card-image {
    height: 180px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

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

.blog-card-meta {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.blog-card-content h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.blog-card-content h3 a {
    color: var(--text-color);
}

.blog-card-content h3 a:hover {
    color: var(--primary-dark);
}

.blog-card-content p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Blog Post */
.blog-post {
    padding: var(--spacing-xl) 0;
}

.blog-post .container {
    max-width: 800px;
}

.blog-post-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.blog-post-header h1 {
    font-size: 2rem;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

.blog-post-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.blog-post-content {
    line-height: 1.9;
}

.blog-post-content h2 {
    font-size: 1.5rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.blog-post-content p {
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.blog-post-content ul,
.blog-post-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
}

.blog-post-content li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.8;
}

.blog-post-content strong {
    color: var(--text-color);
}

.blog-post-content a {
    color: var(--primary-dark);
    text-decoration: underline;
}

.blog-post-cta {
    background: var(--background-alt);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-lg);
    text-align: center;
}

.blog-post-cta h3 {
    margin-bottom: var(--spacing-sm);
}

.blog-post-cta p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.related-posts {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.related-posts h3 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

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