/* ==========================================================================
   American World School - Main Stylesheet
   Mobile-first responsive design using CSS Grid & Flexbox
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   Centralized color palette and typography for easy theming
   -------------------------------------------------------------------------- */
:root {
    /* Brand Colors - extracted from logo */
    --color-primary: #1e3a68;
    --color-primary-dark: #152a4d;
    --color-secondary: #c82035;
    --color-secondary-dark: #a01a2b;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-black: #0f172a;
    --color-gray-100: #f8fafc;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;

    /* Typography */
    --font-display: 'Cinzel', serif;
    --font-body: 'Montserrat', sans-serif;

    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Layout */
    --max-width: 1280px;
    --nav-height: 100px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Dark mode variables */
[data-theme="dark"] {
    --bg-primary: var(--color-black);
    --bg-secondary: var(--color-gray-800);
    --text-primary: var(--color-white);
    --text-secondary: var(--color-gray-300);
    --border-color: var(--color-gray-700);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Dark mode body */
[data-theme="dark"] body {
    color: var(--color-gray-100);
    background-color: var(--color-black);
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-secondary);
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
.font-display {
    font-family: var(--font-display);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

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

/* --------------------------------------------------------------------------
   Navigation
   Fixed navigation with glassmorphism effect
   Uses Flexbox for horizontal alignment
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-gray-200);
    transition: background var(--transition-base);
}

[data-theme="dark"] .nav {
    background: rgba(15, 23, 42, 0.95);
    border-bottom-color: var(--color-gray-700);
}

.nav__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

@media (min-width: 768px) {
    .nav__container {
        padding: 0 var(--space-md);
    }
}

.nav__brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav__logo {
    height: 80px;
    width: auto;
}

.nav__logo img {
    height: 100%;
    width: auto;
    object-fit: contain;
}

/* Larger logo on desktop */
@media (min-width: 768px) {
    .nav__logo {
        height: 90px;
    }
}

.nav__title {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    display: none;
}

[data-theme="dark"] .nav__title {
    color: var(--color-white);
}

.nav__title span {
    color: var(--color-secondary);
}

/* Desktop navigation links */
.nav__links {
    display: none;
    align-items: center;
    gap: var(--space-xl);
}

.nav__link {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-800);
    transition: color var(--transition-fast);
    padding: var(--space-sm) 0;
    position: relative;
}

[data-theme="dark"] .nav__link {
    color: var(--color-white);
}

.nav__link:hover,
.nav__link--active {
    color: var(--color-secondary);
}

.nav__link--active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-secondary);
}

/* Navigation buttons */
.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition-base);
}

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

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

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

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

.btn--icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--color-gray-600);
}

.btn--icon:hover {
    background: var(--color-gray-100);
}

[data-theme="dark"] .btn--icon {
    color: var(--color-gray-300);
}

[data-theme="dark"] .btn--icon:hover {
    background: var(--color-gray-800);
}

/* Mobile menu toggle */
.nav__toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
}

.nav__toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-gray-800);
    transition: var(--transition-base);
}

[data-theme="dark"] .nav__toggle span {
    background: var(--color-white);
}

/* Mobile menu */
.nav__mobile {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    padding: var(--space-xl);
    z-index: 999;
}

[data-theme="dark"] .nav__mobile {
    background: var(--color-black);
}

.nav__mobile.is-open {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.nav__mobile-link {
    font-size: 1.125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-gray-200);
}

[data-theme="dark"] .nav__mobile-link {
    border-bottom-color: var(--color-gray-700);
}

/* Responsive: Show desktop nav on larger screens */
@media (min-width: 768px) {
    .nav__title {
        display: block;
    }

    .nav__links {
        display: flex;
    }

    .nav__toggle {
        display: none;
    }
}

/* --------------------------------------------------------------------------
   Hero Section
   Full-screen hero with background image
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Image Background Container */
.hero__image-container {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Video Background Container (kept for optional video use) */
.hero__video-container {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Poster image shown while video loads */
.hero__poster {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transition: opacity var(--transition-slow);
}

.hero__poster.is-hidden {
    opacity: 0;
    pointer-events: none;
}

/* Overlay gradients for text readability */
.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(30, 58, 104, 0.85) 0%,
        rgba(30, 58, 104, 0.7) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    z-index: 1;
}

[data-theme="dark"] .hero__overlay {
    background: linear-gradient(
        to bottom,
        rgba(15, 23, 42, 0.9) 0%,
        rgba(15, 23, 42, 0.75) 50%,
        rgba(15, 23, 42, 0.95) 100%
    );
}

/* Hero content */
.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--space-xl);
    padding-top: calc(var(--nav-height) + var(--space-xl));
    max-width: 1000px;
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Accreditation image at bottom of hero */
.hero__accreditation {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-lg);
}

.hero__accreditation img {
    max-width: 220px;
    height: auto;
    margin: 0 auto;
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
    .hero__accreditation img {
        max-width: 300px;
    }
}

.hero__title {
    font-size: clamp(1.75rem, 6vw, 4rem);
    color: var(--color-white);
    margin-bottom: var(--space-md);
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero__subtitle-large {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 5vw, 3rem);
    color: var(--color-white);
    margin-bottom: var(--space-2xl);
    line-height: 1.3;
    font-weight: 600;
}

.hero__title-accent {
    background: linear-gradient(135deg, var(--color-white), var(--color-gray-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--color-gray-200);
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.8;
}

.hero__scroll {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.hero__scroll-icon {
    animation: bounce 2s infinite;
}

/* --------------------------------------------------------------------------
   About Section
   Centered content section with icon
   -------------------------------------------------------------------------- */
.about {
    padding: var(--space-4xl) 0;
    background: var(--color-white);
}

[data-theme="dark"] .about {
    background: var(--color-black);
}

.about__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 0 var(--space-md);
}

.about__icon {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

[data-theme="dark"] .about__icon {
    color: #60a5fa;
}

.about__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-primary);
    margin-bottom: var(--space-xl);
}

[data-theme="dark"] .about__title {
    color: var(--color-white);
}

.about__text {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    line-height: 1.9;
}

[data-theme="dark"] .about__text {
    color: var(--color-gray-300);
}

/* --------------------------------------------------------------------------
   Timeline Section
   Alternating timeline using CSS Grid for layout
   Mobile: stacked layout, Desktop: alternating left/right
   -------------------------------------------------------------------------- */
.timeline {
    padding: var(--space-4xl) 0;
    background: var(--color-gray-100);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .timeline {
    background: var(--color-gray-800);
}

.timeline__container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
    position: relative;
}

/* Central timeline line - visible on desktop only */
.timeline__line {
    display: none;
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-gray-200);
    transform: translateX(-50%);
}

[data-theme="dark"] .timeline__line {
    background: var(--color-gray-600);
}

/* Timeline item - Uses CSS Grid for responsive layout */
.timeline__item {
    display: grid;
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
    position: relative;
}

/* Timeline node (circle on the line) */
.timeline__node {
    display: none;
    width: 64px;
    height: 64px;
    background: var(--color-white);
    border: 4px solid var(--color-primary);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

[data-theme="dark"] .timeline__node {
    background: var(--color-black);
}

.timeline__node--secondary {
    border-color: var(--color-secondary);
}

.timeline__node--highlight {
    background: var(--color-secondary);
    border-color: var(--color-white);
    animation: pulse 2s infinite;
}

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

.timeline__node--secondary .timeline__node-icon {
    color: var(--color-secondary);
}

.timeline__node--highlight .timeline__node-icon {
    color: var(--color-white);
}

/* Timeline content area */
.timeline__content {
    text-align: center;
    padding: var(--space-lg);
}

.timeline__year {
    display: inline-block;
    padding: var(--space-sm) var(--space-md);
    background: rgba(30, 58, 104, 0.1);
    border-radius: 50px;
    color: var(--color-primary);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.timeline__year--secondary {
    background: rgba(200, 32, 53, 0.1);
    color: var(--color-secondary);
}

[data-theme="dark"] .timeline__year {
    color: #93c5fd;
}

[data-theme="dark"] .timeline__year--secondary {
    color: #fca5a5;
}

.timeline__heading {
    font-size: 1.75rem;
    color: var(--color-gray-800);
    margin-bottom: var(--space-md);
}

[data-theme="dark"] .timeline__heading {
    color: var(--color-white);
}

.timeline__quote {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--color-secondary);
    margin-bottom: var(--space-md);
}

.timeline__item:nth-child(even) .timeline__quote {
    color: var(--color-primary);
}

[data-theme="dark"] .timeline__item:nth-child(even) .timeline__quote {
    color: #93c5fd;
}

.timeline__text {
    color: var(--color-gray-600);
    line-height: 1.7;
}

[data-theme="dark"] .timeline__text {
    color: var(--color-gray-400);
}

/* Timeline image */
.timeline__image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.timeline__image-wrapper:hover {
    transform: scale(1.02);
}

/* Scroll animation - image starts scaled down and scales up on scroll */
.timeline__image-wrapper.scale-on-scroll {
    transform: scale(0.85);
    opacity: 0.7;
}

.timeline__image-wrapper.scale-on-scroll.is-visible {
    transform: scale(1);
    opacity: 1;
}

/* Timeline content slide animation */
.timeline__content {
    transition: transform 0.6s ease-out, opacity 0.6s ease-out;
}

.timeline__item.fade-in .timeline__content {
    opacity: 0;
    transform: translateX(-30px);
}

.timeline__item.fade-in.is-visible .timeline__content {
    opacity: 1;
    transform: translateX(0);
}

/* Alternate direction for even items */
.timeline__item:nth-child(even).fade-in .timeline__content {
    transform: translateX(30px);
}

.timeline__item:nth-child(even).fade-in.is-visible .timeline__content {
    transform: translateX(0);
}

.timeline__image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: all var(--transition-slow);
}

.timeline__image--grayscale {
    filter: grayscale(100%);
}

.timeline__image-wrapper:hover .timeline__image--grayscale {
    filter: grayscale(0);
}

.timeline__image-overlay {
    position: absolute;
    inset: 0;
    background: rgba(30, 58, 104, 0.2);
    mix-blend-mode: multiply;
    transition: opacity var(--transition-base);
}

.timeline__image-wrapper:hover .timeline__image-overlay {
    opacity: 0;
}

.timeline__image-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    color: var(--color-white);
    font-family: var(--font-display);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* Desktop: Alternating layout using CSS Grid */
@media (min-width: 768px) {
    .timeline__line {
        display: block;
    }

    .timeline__node {
        display: flex;
    }

    .timeline__item {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }

    .timeline__content {
        text-align: right;
        padding-right: var(--space-3xl);
    }

    .timeline__image {
        height: 380px;
    }

    /* Alternate sides */
    .timeline__item:nth-child(even) {
        direction: rtl;
    }

    .timeline__item:nth-child(even) > * {
        direction: ltr;
    }

    .timeline__item:nth-child(even) .timeline__content {
        text-align: left;
        padding-right: 0;
        padding-left: var(--space-3xl);
    }
}

/* --------------------------------------------------------------------------
   Stats Section
   Statistics bar using CSS Grid for equal columns
   -------------------------------------------------------------------------- */
.stats {
    padding: var(--space-3xl) 0;
    background: var(--color-primary);
    color: var(--color-white);
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
    text-align: center;
}

.stats__item {
    padding: var(--space-lg);
}

/* Add dividers between items on desktop */
@media (min-width: 768px) {
    .stats__grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .stats__item:not(:last-child) {
        border-right: 1px solid rgba(255, 255, 255, 0.2);
    }
}

.stats__number {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.stats__label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    opacity: 0.8;
}

/* --------------------------------------------------------------------------
   Values Section
   Card grid using CSS Grid for responsive layout
   -------------------------------------------------------------------------- */
.values {
    padding: var(--space-4xl) 0;
    background: var(--color-white);
}

[data-theme="dark"] .values {
    background: var(--color-black);
}

.values__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
    padding: 0 var(--space-md);
}

.values__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-gray-800);
    margin-bottom: var(--space-md);
}

[data-theme="dark"] .values__title {
    color: var(--color-white);
}

.values__divider {
    width: 96px;
    height: 4px;
    background: var(--color-secondary);
    margin: 0 auto;
    border: none;
}

.values__grid {
    display: grid;
    gap: var(--space-xl);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Responsive grid: 1 column mobile, 2 tablet, 3 desktop */
@media (min-width: 640px) {
    .values__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .values__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Value card with hover effect */
.value-card {
    position: relative;
    height: 400px;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
}

.value-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    opacity: 0.8;
}

.value-card:hover .value-card__image {
    transform: scale(1.1);
    opacity: 1;
}

.value-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        var(--color-primary) 0%,
        rgba(30, 58, 104, 0.5) 50%,
        transparent 100%
    );
    opacity: 0.9;
}

.value-card__content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-xl);
}

.value-card__icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    color: var(--color-white);
    font-size: 1.5rem;
}

.value-card__title {
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.value-card__text {
    color: var(--color-gray-200);
    font-size: 0.875rem;
    line-height: 1.6;
    opacity: 0;
    transform: translateY(16px);
    transition: all var(--transition-base);
}

.value-card:hover .value-card__text {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   CTA Section
   Call-to-action with decorative background
   -------------------------------------------------------------------------- */
.cta {
    position: relative;
    padding: var(--space-4xl) 0;
    background: var(--color-gray-800);
    overflow: hidden;
}

/* Decorative pattern */
.cta__pattern {
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M50 0 L100 0 L100 50 C100 77.6 77.6 100 50 100 C22.4 100 0 77.6 0 50 L0 0 Z' fill='none' stroke='%23ffffff' stroke-width='1'/%3E%3C/svg%3E");
    background-size: 100px 100px;
}

.cta__content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    padding: 0 var(--space-md);
}

.cta__title {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.cta__text {
    font-size: 1.25rem;
    color: var(--color-gray-300);
    font-weight: 300;
    margin-bottom: var(--space-2xl);
}

.cta__buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    justify-content: center;
}

@media (min-width: 640px) {
    .cta__buttons {
        flex-direction: row;
    }
}

.cta__btn {
    padding: var(--space-md) var(--space-2xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 4px;
    transition: all var(--transition-base);
}

.cta__btn--primary {
    background: var(--color-secondary);
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
}

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

.cta__btn--outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

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

/* --------------------------------------------------------------------------
   Footer
   Multi-column footer using CSS Grid
   -------------------------------------------------------------------------- */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-4xl) 0 var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .footer {
    background: var(--color-black);
    border-top-color: var(--color-gray-800);
}

.footer__grid {
    display: grid;
    gap: var(--space-2xl);
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
    margin-bottom: var(--space-2xl);
}

/* Responsive footer grid */
@media (min-width: 640px) {
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer__brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.footer__logo {
    height: 80px;
    width: auto;
}

.footer__logo img {
    height: 100%;
    width: auto;
    object-fit: contain;
    /* Invert logo colors for dark background */
    filter: brightness(0) invert(1);
}

[data-theme="dark"] .footer__logo img {
    filter: brightness(0) invert(1);
}

.footer__about {
    color: var(--color-gray-300);
    font-size: 0.875rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.footer__social {
    display: flex;
    gap: var(--space-md);
}

.footer__social-link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.5rem;
    transition: color var(--transition-fast);
}

.footer__social-link:hover {
    color: var(--color-white);
}

.footer__heading {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--space-lg);
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__link {
    color: var(--color-gray-300);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-white);
}

.footer__contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    color: var(--color-gray-300);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

.footer__contact-icon {
    font-size: 1rem;
    margin-top: 2px;
}

/* Newsletter form */
.footer__form {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: var(--space-sm) var(--space-md);
    color: var(--color-white);
    font-size: 0.875rem;
}

.footer__input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.footer__input:focus {
    outline: none;
    border-color: var(--color-secondary);
}

.footer__submit {
    background: var(--color-secondary);
    color: var(--color-white);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: 4px;
    transition: background var(--transition-fast);
}

.footer__submit:hover {
    background: var(--color-secondary-dark);
}

/* Footer bottom bar */
.footer__bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-gray-400);
}

@media (min-width: 768px) {
    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer__legal {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
}

@media (min-width: 768px) {
    .footer__legal {
        justify-content: flex-end;
    }
}

.footer__legal-link {
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
}

.footer__legal-link:hover {
    color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Animations
   Keyframe animations for interactive elements
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        box-shadow: 0 0 0 0 rgba(200, 32, 53, 0.4);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.05);
        box-shadow: 0 0 0 10px rgba(200, 32, 53, 0);
    }
}

/* Fade-in animation for scroll reveal */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Lazy Loading
   Blur-up effect for lazy-loaded images
   -------------------------------------------------------------------------- */
.lazy-image {
    opacity: 0;
    transition: opacity var(--transition-base);
}

.lazy-image.is-loaded {
    opacity: 1;
}

/* --------------------------------------------------------------------------
   Print Styles
   Basic print optimization
   -------------------------------------------------------------------------- */
@media print {
    .nav,
    .hero__video-container,
    .cta,
    .footer__form {
        display: none;
    }

    body {
        color: #000;
        background: #fff;
    }
}