@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    --bg-dark: #f8f9fa; /* Elegant light background */
    --bg-card: #ffffff; /* Clean white cards */
    --bg-glass: rgba(248, 249, 250, 0.85); /* Semi-transparent light glass */
    --primary: #9e805d; /* Warm gold/bronze, adjusted for light-mode readability */
    --primary-light: #c5a880;
    --primary-glow: rgba(158, 128, 93, 0.08);
    --accent: #0f766e; /* Deep emerald-teal for text contrast and borders */
    --accent-light: #14b8a6;
    --accent-glow: rgba(15, 118, 110, 0.08);
    --text-main: #1e293b; /* Dark slate text for high legibility */
    --text-muted: #64748b; /* Soft cool gray for descriptions */
    --border: rgba(158, 128, 93, 0.18); /* Soft gold-accented borders */
    --border-light: rgba(158, 128, 93, 0.35);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    line-height: 1.6;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(158, 128, 93, 0.05) 0%, transparent 45%),
        radial-gradient(circle at 90% 80%, rgba(15, 118, 110, 0.03) 0%, transparent 55%);
    background-attachment: fixed;
}

/* Glassmorphism Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition-smooth);
}

header.scrolled {
    padding: 10px 0;
    box-shadow: 0 10px 30px rgba(158, 128, 93, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    gap: 30px;
    list-style: none;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background-color: var(--primary);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--text-main);
}

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

.btn-nav {
    background: transparent;
    border: 1.5px solid var(--primary);
    color: var(--primary);
    padding: 10px 22px;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-nav:hover {
    background: var(--primary);
    color: var(--bg-card);
    box-shadow: 0 5px 15px var(--primary-glow);
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-toggle span {
    width: 28px;
    height: 2.5px;
    background-color: var(--text-main);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 150px 20px 80px 20px;
    position: relative;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(158, 128, 93, 0.06);
    border: 1px solid var(--border);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero-tag .dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(15, 118, 110, 0.5);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.hero-title span {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.35;
    letter-spacing: -0.015em;
}

.hero-desc {
    color: var(--text-muted);
    font-size: 1.15rem;
    margin-bottom: 40px;
    max-width: 60ch;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.btn-primary {
    background: var(--primary);
    border: 1.5px solid var(--primary);
    color: var(--bg-card);
    padding: 16px 32px;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    box-shadow: 0 10px 25px var(--primary-glow);
}

.btn-primary:hover {
    background: #876b4d;
    border-color: #876b4d;
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(158, 128, 93, 0.25);
}

.btn-secondary {
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    color: var(--text-main);
    padding: 16px 32px;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.btn-secondary:hover {
    background: rgba(158, 128, 93, 0.03);
    border-color: var(--border-light);
    transform: translateY(-3px);
}

.hero-image-wrapper {
    position: relative;
    opacity: 0;
    transform: scale(0.95);
    animation: fadeInScale 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
    display: flex;
    justify-content: center;
}

.hero-image-container {
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(158, 128, 93, 0.1);
    position: relative;
}

.hero-image-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 75%, var(--bg-dark));
    z-index: 2;
    pointer-events: none;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

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

.hero-badge {
    position: absolute;
    bottom: 30px;
    left: -30px;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1.5px solid var(--border-light);
    padding: 16px 24px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 15px 30px rgba(158, 128, 93, 0.08);
    z-index: 3;
    animation: float 6s ease-in-out infinite;
}

.hero-badge-icon {
    width: 40px;
    height: 40px;
    background: rgba(15, 118, 110, 0.08);
    border: 1.5px solid rgba(15, 118, 110, 0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}

.hero-badge-text h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
}

.hero-badge-text p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Sections Common */
section {
    padding: 100px 20px;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-tag {
    color: var(--primary);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
    display: inline-block;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    color: var(--text-main);
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 70ch;
    margin: 16px auto 0 auto;
}

/* Reveal Scroll animation styles */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.about-feature {
    display: flex;
    gap: 20px;
}

.about-feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(158, 128, 93, 0.06);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.about-feature-text h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-main);
}

.about-feature-text p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.about-vision {
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    padding: 40px;
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(158, 128, 93, 0.03);
}

.about-vision::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(15, 118, 110, 0.04) 0%, transparent 70%);
    z-index: 1;
}

.about-vision h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--accent);
}

.about-vision p {
    color: var(--text-muted);
    margin-bottom: 24px;
    font-size: 1rem;
}

.quote-block {
    border-left: 2px solid var(--primary);
    padding-left: 20px;
    margin: 30px 0 0 0;
    font-style: italic;
    color: var(--text-main);
}

.quote-author {
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
}

/* Program Tracks Section */
.tracks-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.track-card {
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 24px;
    padding: 50px;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(158, 128, 93, 0.02);
}

.track-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    transition: var(--transition-smooth);
}

.track-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-light);
    box-shadow: 0 20px 40px rgba(158, 128, 93, 0.08);
}

.track-card.pre-cert:hover::after {
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.track-card.post-cert:hover::after {
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
}

.track-badge {
    align-self: flex-start;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pre-cert .track-badge {
    background: rgba(158, 128, 93, 0.08);
    border: 1px solid var(--border);
    color: var(--primary);
}

.post-cert .track-badge {
    background: rgba(15, 118, 110, 0.08);
    border: 1px solid rgba(15, 118, 110, 0.15);
    color: var(--accent);
}

.track-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-main);
}

.track-desc {
    color: var(--text-muted);
    margin-bottom: 40px;
    min-height: 75px;
}

.track-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.track-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-main);
}

.track-features li svg {
    color: var(--primary);
    flex-shrink: 0;
}

.post-cert .track-features li svg {
    color: var(--accent);
}

.btn-card {
    margin-top: auto;
    text-align: center;
    border: 1.5px solid var(--border);
    padding: 14px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 700;
    transition: var(--transition-smooth);
    color: var(--text-main);
}

.pre-cert .btn-card:hover {
    background: var(--primary);
    color: var(--bg-card);
    border-color: var(--primary);
    box-shadow: 0 10px 20px var(--primary-glow);
}

.post-cert .btn-card:hover {
    background: var(--accent);
    color: var(--bg-card);
    border-color: var(--accent);
    box-shadow: 0 10px 20px var(--accent-glow);
}

/* Metrics Section */
.metrics-section {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #ffffff 50%, var(--bg-dark) 100%);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.metric-card {
    text-align: center;
    padding: 30px;
}

.metric-number {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
    letter-spacing: -1px;
}

.metric-number span {
    color: var(--text-main);
}

.metric-label {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 4px;
}

.metric-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.benefit-card {
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 20px;
    padding: 35px;
    transition: var(--transition-smooth);
    box-shadow: 0 10px 30px rgba(158, 128, 93, 0.02);
}

.benefit-card:hover {
    background: var(--bg-card);
    transform: translateY(-5px);
    border-color: var(--border-light);
    box-shadow: 0 15px 35px rgba(158, 128, 93, 0.08);
}

.benefit-icon {
    width: 52px;
    height: 52px;
    background: rgba(158, 128, 93, 0.06);
    border: 1.5px solid var(--border);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 24px;
    transition: var(--transition-smooth);
}

.benefit-card:hover .benefit-icon {
    background: var(--primary);
    color: var(--bg-card);
    box-shadow: 0 5px 15px var(--primary-glow);
}

.benefit-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-main);
}

.benefit-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Application Section */
.app-section {
    position: relative;
}

.app-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 32px;
    padding: 60px;
    box-shadow: 0 20px 40px rgba(158, 128, 93, 0.05);
    position: relative;
    overflow: hidden;
}

.app-container::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(158, 128, 93, 0.04) 0%, transparent 70%);
    z-index: 1;
}

.app-form {
    position: relative;
    z-index: 2;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.form-input, .form-textarea, .form-select {
    background: #ffffff;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 14px 18px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239e805d'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 18px center;
    background-size: 16px;
    padding-right: 45px;
}

.form-select option {
    background-color: #ffffff;
    color: var(--text-main);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    background: #ffffff;
    box-shadow: 0 0 10px rgba(158, 128, 93, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit-container {
    text-align: center;
}

.btn-submit {
    width: 100%;
    max-width: 300px;
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 12px;
    text-align: center;
    font-size: 0.95rem;
    font-weight: 500;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(15, 118, 110, 0.08);
    border: 1.5px solid var(--accent);
    color: var(--accent);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.08);
    border: 1.5px solid #ef4444;
    color: #ef4444;
}

/* Footer Section */
footer {
    background: #fafaf9; /* Extremely clean light footer */
    border-top: 1.5px solid var(--border);
    padding: 80px 20px 40px 20px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-main);
}

.footer-brand h3 span {
    color: var(--primary);
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 320px;
    margin-bottom: 24px;
}

.footer-links-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-main);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--text-main);
    transform: translateX(3px);
    display: inline-block;
}

.footer-bottom {
    border-top: 1px solid rgba(158, 128, 93, 0.15);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-bottom-links a:hover {
    color: var(--text-main);
}

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

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-desc {
        max-width: 600px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-image-wrapper {
        margin-top: 20px;
    }
    
    .hero-badge {
        left: 0;
        bottom: -20px;
    }
    
    .about-grid, .tracks-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.8rem;
    }

    .mobile-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg-dark);
        border-top: 1px solid var(--border);
        flex-direction: column;
        padding: 50px 20px;
        gap: 40px;
        transition: var(--transition-smooth);
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        font-size: 1.2rem;
    }
    
    .btn-nav {
        width: 100%;
        text-align: center;
        padding: 14px;
        font-size: 1.1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .app-container {
        padding: 30px 20px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        gap: 15px;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}

/* Book Cover Mockup Styles */
.book-mockup-wrapper {
    position: relative;
    max-width: 360px !important; /* Perfect book ratio */
    aspect-ratio: 0.65 / 1 !important;
    perspective: 1000px;
}

.book-cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px 16px 16px 4px !important;
    box-shadow: 
        -10px 10px 25px rgba(0,0,0,0.15),
        -2px 2px 5px rgba(0,0,0,0.1),
        inset 4px 0 6px rgba(255,255,255,0.15); /* Spine highlight */
    border: 1px solid rgba(0, 0, 0, 0.1);
    transform: rotateY(-5deg) rotateX(2deg);
    transition: var(--transition-smooth);
}

.book-mockup-wrapper:hover .book-cover-img {
    transform: rotateY(0deg) rotateX(0deg) scale(1.02);
    box-shadow: -15px 15px 35px rgba(0,0,0,0.2);
}

.book-badge {
    left: -20px !important;
    bottom: 20px !important;
}

/* Three Pillars / Standards Cards */
.standards-grid {
    grid-template-columns: repeat(3, 1fr) !important;
    margin-top: 40px;
}

.standard-card {
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 20px;
    padding: 40px;
    transition: var(--transition-smooth);
    box-shadow: 0 10px 30px rgba(158, 128, 93, 0.02);
    text-align: left !important;
}

.standard-card:hover {
    border-color: var(--border-light);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(158, 128, 93, 0.08);
}

.pillar-icon-container {
    color: var(--primary);
    background: rgba(158, 128, 93, 0.08);
    width: 54px;
    height: 54px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid var(--border);
    transition: var(--transition-smooth);
}

.standard-card:hover .pillar-icon-container {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 8px 20px var(--primary-glow);
}

.pillar-icon-container svg {
    width: 24px;
    height: 24px;
}

/* Chapter Browser Section */
.chapter-browser-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 15px 35px rgba(158, 128, 93, 0.03);
}

.part-tabs {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.part-tab {
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: 16px 20px;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.part-tab span {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary);
    letter-spacing: 1px;
}

.part-tab h4 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
}

.part-tab:hover {
    background: rgba(158, 128, 93, 0.03);
    border-color: var(--border-light);
}

.part-tab.active {
    background: var(--primary);
    border-color: var(--primary);
}

.part-tab.active span {
    color: rgba(255, 255, 255, 0.85);
}

.part-tab.active h4 {
    color: #ffffff;
}

.part-content-panels {
    min-height: 380px;
}

.part-panel {
    display: none;
    animation: fadeIn 0.5s ease forwards;
}

.part-panel.active {
    display: block;
}

.part-header-desc {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.part-header-desc h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.part-header-desc p {
    color: var(--text-muted);
    font-size: 0.98rem;
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.chapter-card-item {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: var(--transition-smooth);
}

.chapter-card-item:hover {
    border-color: var(--border-light);
    background: #ffffff;
    transform: translateY(-2px);
}

.ch-number {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    background: rgba(158, 128, 93, 0.08);
    padding: 4px 10px;
    border-radius: 8px;
    flex-shrink: 0;
}

.chapter-card-item h5 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-main);
}

.chapter-card-item p {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.55;
}

/* Media Query overrides for book-specific elements */
@media (max-width: 1024px) {
    .chapter-browser-container {
        grid-template-columns: 1fr;
    }
    
    .part-tabs {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 10px;
    }
    
    .part-tab {
        flex-shrink: 0;
    }
    
    .standards-grid {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 768px) {
    .chapters-grid {
        grid-template-columns: 1fr;
    }