/* ==========================================================================
   Mastering Subtlety - Website Styles
   Color palette derived from book cover (blues/grays)
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Colors - Book-themed Blues/Grays */
    --bg: #0b0b10;
    --bg-alt: #0e0e14;
    --text: #e9e8ef;
    --text-muted: #b8b6c7;
    --primary: #4a90d9;
    --primary-dark: #3a7bc8;
    --accent: #7dd3fc;
    --gold: #d4a853;
    --card: #12121a;
    --card-hover: #1a1a24;
    --line: #232333;
    --hero-gradient-start: #1a2a3a;
    --hero-gradient-end: #0b0b10;

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Container */
    --container-max: 1100px;
    --container-padding: 24px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(74, 144, 217, 0.3);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
    list-style: none;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text);
}

h1 {
    font-size: clamp(2.2rem, 4vw + 1rem, 3.5rem);
}

h2 {
    font-size: clamp(1.6rem, 1.5vw + 1rem, 2.2rem);
}

h3 {
    font-size: clamp(1.2rem, 1vw + 0.8rem, 1.5rem);
}

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

.lead {
    font-size: 1.25rem;
    color: var(--text);
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--space-3xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-md);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin: var(--space-sm) auto 0;
    border-radius: var(--radius-full);
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    color: white;
}

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

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

.btn-nav {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11, 11, 16, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    transition: all var(--transition-normal);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
}

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

.nav-logo-icon {
    width: 28px;
    height: 28px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-menu a {
    color: var(--text-muted);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--text);
}

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

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: all var(--transition-fast);
}

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

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        border-bottom: 1px solid var(--line);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }

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

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px;
    background: linear-gradient(180deg, var(--hero-gradient-start), var(--hero-gradient-end));
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="%23ffffff" fill-opacity="0.03"/></svg>');
    background-size: 50px 50px;
    pointer-events: none;
}

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

.hero-content {
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
    margin-bottom: var(--space-sm);
    background: linear-gradient(135deg, var(--text), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
    color: var(--accent);
    font-style: italic;
    margin-bottom: var(--space-md);
    min-height: 2em;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    max-width: 500px;
}

.hero-audience {
    color: var(--gold);
    font-weight: 500;
    margin-bottom: var(--space-lg);
}

.hero-ctas {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    background: linear-gradient(135deg, var(--gold), #c49644);
    color: #1a1a1a;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.badge-icon {
    width: 20px;
    height: 20px;
    filter: brightness(0);
}

.hero-image {
    display: flex;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.book-cover {
    max-width: 380px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transition: transform var(--transition-normal);
}

.book-cover:hover {
    transform: scale(1.02) rotate(1deg);
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
}

.hero-wave svg {
    width: 100%;
    height: 100%;
}

@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-ctas {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .book-cover {
        max-width: 280px;
    }
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.about-content p {
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.about-content .lead {
    color: var(--text);
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.quote {
    border-left: 3px solid var(--primary);
    padding-left: var(--space-md);
    margin: var(--space-lg) 0;
}

.quote p {
    font-style: italic;
    font-size: 1.125rem;
    color: var(--text);
}

.quote cite {
    display: block;
    color: var(--gold);
    font-style: normal;
    font-weight: 600;
    margin-top: var(--space-xs);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.feature-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-normal);
    display: grid;
    grid-template-columns: 50px 1fr;
    grid-template-rows: auto auto;
    gap: 0 var(--space-md);
    align-items: start;
}

.feature-card:hover {
    background: var(--card-hover);
    border-color: var(--primary);
    transform: translateX(8px);
}

.feature-icon {
    width: 50px;
    height: auto;
    grid-row: 1 / 3;
    align-self: center;
}

.feature-card h3 {
    margin-bottom: var(--space-xs);
    font-size: 1.125rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   Chapters Section
   -------------------------------------------------------------------------- */
.chapters {
    background: var(--bg-alt);
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.chapter-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-normal);
}

.chapter-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.chapter-card.highlight {
    background: linear-gradient(135deg, rgba(74, 144, 217, 0.1), rgba(212, 168, 83, 0.1));
    border-color: var(--gold);
}

.chapter-part {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: var(--space-xs);
}

.chapter-card.highlight .chapter-part {
    color: var(--gold);
}

.chapter-card h3 {
    margin-bottom: var(--space-sm);
    font-size: 1.125rem;
}

.chapter-card ul {
    list-style: none;
}

.chapter-card li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: var(--space-xs);
    color: var(--text-muted);
    font-size: 0.9375rem;
}

.chapter-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.chapter-card.highlight li::before {
    background: var(--gold);
}

@media (max-width: 1000px) {
    .chapters-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .chapters-grid {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   Concepts Section
   -------------------------------------------------------------------------- */
.concept-banner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
}

.concept-text h2 {
    margin-bottom: var(--space-md);
    font-size: clamp(1.5rem, 2vw + 1rem, 2rem);
}

.concept-text p {
    color: var(--text-muted);
    font-size: 1.125rem;
}

.concept-image {
    max-width: 300px;
    margin: 0 auto;
    border-radius: var(--radius-md);
}

@media (max-width: 768px) {
    .concept-banner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .concept-visual {
        order: -1;
    }
}

/* --------------------------------------------------------------------------
   Author Section
   -------------------------------------------------------------------------- */
.author {
    background: var(--bg-alt);
}

.author-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--space-2xl);
    align-items: start;
}

.author-image-container {
    position: sticky;
    top: 100px;
}

.author-image {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.author-content h3 {
    font-size: 1.75rem;
    margin-bottom: var(--space-xs);
}

.author-credentials {
    color: var(--primary);
    font-weight: 500;
    margin-bottom: var(--space-md);
}

.author-content p {
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.author-quote {
    background: var(--card);
    border-left: 3px solid var(--gold);
    padding: var(--space-md);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-top: var(--space-lg);
}

.author-quote blockquote p {
    font-style: italic;
    color: var(--text);
    margin: 0;
}

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

    .author-image-container {
        position: static;
        max-width: 250px;
        margin: 0 auto;
    }
}

/* --------------------------------------------------------------------------
   Testimonials Section
   -------------------------------------------------------------------------- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.testimonial-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-normal);
}

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

.testimonial-card.featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(74, 144, 217, 0.1), rgba(125, 211, 252, 0.05));
    border-color: var(--primary);
}

.testimonial-quote p {
    font-size: 1.0625rem;
    font-style: italic;
    color: var(--text);
    position: relative;
    padding-left: var(--space-md);
}

.testimonial-quote p::before {
    content: '"';
    position: absolute;
    left: 0;
    top: -10px;
    font-size: 3rem;
    font-family: var(--font-heading);
    color: var(--primary);
    opacity: 0.5;
    line-height: 1;
}

.testimonial-author {
    margin-top: var(--space-md);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--line);
}

.testimonial-name {
    font-weight: 600;
    color: var(--gold);
}

.testimonial-title {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 0.25rem;
}

/* Foreword Accordion */
.foreword-full {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--line);
}

.foreword-full[hidden] {
    display: none;
}

.foreword-full p {
    font-size: 1rem;
    font-style: normal;
    color: var(--text);
    margin-bottom: var(--space-sm);
    padding-left: 0;
    line-height: 1.7;
}

.foreword-full p::before {
    display: none;
}

.foreword-full p:first-child {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gold);
}

.foreword-full p em {
    font-style: italic;
}

.foreword-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: 1px solid var(--primary);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    z-index: 10;
}

.foreword-toggle:hover {
    background: rgba(74, 144, 217, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.foreword-toggle[aria-expanded="true"] .toggle-icon {
    transform: rotate(180deg);
}

.toggle-icon {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

@media (max-width: 900px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .testimonial-card.featured {
        grid-column: auto;
    }
}

/* --------------------------------------------------------------------------
   Purchase Section
   -------------------------------------------------------------------------- */
.purchase {
    background: linear-gradient(180deg, var(--bg), var(--hero-gradient-start));
}

.purchase-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-2xl);
    align-items: center;
}

.purchase-image {
    max-width: 280px;
    margin: 0 auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.purchase-content {
    text-align: left;
}

.purchase-details {
    margin-bottom: var(--space-lg);
}

.purchase-edition {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: var(--space-xs);
}

.purchase-isbn {
    color: var(--text-muted);
    font-family: monospace;
}

.purchase-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.btn-purchase {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    background: var(--card);
    border: 2px solid var(--line);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    max-width: 300px;
}

.btn-purchase span {
    font-weight: 600;
    color: var(--text);
}

.btn-purchase small {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.btn-purchase.amazon:hover {
    border-color: #ff9900;
    background: rgba(255, 153, 0, 0.1);
}

.btn-purchase.barnes:hover {
    border-color: var(--primary);
    background: rgba(74, 144, 217, 0.1);
}

.purchase-note {
    color: var(--text-muted);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .purchase-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .purchase-content {
        text-align: center;
    }

    .purchase-buttons {
        align-items: center;
    }
}

/* --------------------------------------------------------------------------
   Sign Up Section
   -------------------------------------------------------------------------- */
.signup {
    background: var(--bg-alt);
}

.signup-box {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
}

.signup-box h2 {
    margin-bottom: var(--space-sm);
}

.signup-box > p {
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.signup-benefits {
    text-align: left;
    max-width: 400px;
    margin: 0 auto var(--space-lg);
}

.signup-benefits li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: var(--space-xs);
    color: var(--text-muted);
}

.signup-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gold);
    font-weight: bold;
}

.signup-form .form-group {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.signup-form input[type="email"] {
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--bg);
    color: var(--text);
    width: 100%;
    max-width: 300px;
    transition: border-color var(--transition-fast);
}

.signup-form input:focus {
    outline: none;
    border-color: var(--primary);
}

.signup-privacy {
    margin-top: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-2xl);
}

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

.contact-info p {
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.contact-form {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: var(--font-body);
    border: 2px solid var(--line);
    border-radius: var(--radius-md);
    background: var(--bg);
    color: var(--text);
    transition: border-color var(--transition-fast);
}

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

.form-group select {
    cursor: pointer;
}

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

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

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--line);
    padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-lg);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-logo {
    width: 60px;
    height: 60px;
}

.footer-brand p {
    color: var(--text-muted);
    margin: 0;
}

.footer-copyright {
    font-size: 0.875rem;
    margin-top: var(--space-sm);
}

.footer-links h4 {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text);
    margin-bottom: var(--space-sm);
}

.footer-links ul li {
    margin-bottom: var(--space-xs);
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9375rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--line);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        align-items: center;
    }
}

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

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

/* --------------------------------------------------------------------------
   Utilities
   -------------------------------------------------------------------------- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

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

.text-muted {
    color: var(--text-muted);
}