/* ==========================================================================
   Layout - Container, Grid, Sections
   ========================================================================== */

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

.container-sm { max-width: 800px; }
.container-lg { max-width: 1400px; }
.container-full { max-width: none; }

@media (min-width: 768px) {
    .container {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
}

/* Grid */
.grid {
    display: grid;
    gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1023px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 639px) {
    .grid-4,
    .grid-3,
    .grid-2 { grid-template-columns: 1fr; }
}

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Sections */
.section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

.section-sm {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
}

.section-lg {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
}

@media (min-width: 768px) {
    .section {
        padding-top: var(--space-20);
        padding-bottom: var(--space-20);
    }

    .section-lg {
        padding-top: var(--space-24);
        padding-bottom: var(--space-24);
    }
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-title h2 {
    margin-bottom: var(--space-4);
}

.section-title p {
    color: var(--color-text-muted);
    font-size: var(--text-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: -1;
    background: var(--gradient-hero);
}

.hero-content {
    text-align: center;
    padding: var(--space-8);
    max-width: 800px;
}

.hero-logo {
    max-width: 300px;
    margin: 0 auto var(--space-8);
}

@media (min-width: 768px) {
    .hero-logo {
        max-width: 400px;
    }
}

.hero-title {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-4);
    color: var(--color-heading);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--text-hero);
    }
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
    .hero-subtitle {
        font-size: var(--text-xl);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator svg {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
}

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

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-4) 0;
    background: rgba(8, 8, 13, 0.85);
    backdrop-filter: blur(16px) saturate(1.2);
    transition:
        background var(--transition-slow),
        padding var(--transition-base),
        border-color var(--transition-slow);
    border-bottom: 1px solid transparent;
}

.nav.scrolled {
    padding: var(--space-2) 0;
    background: rgba(8, 8, 13, 0.95);
    border-bottom-color: rgba(255, 255, 255, 0.04);
}

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

.nav-logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: none;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--transition-fast);
}

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

.nav-cta {
    display: none;
}

@media (min-width: 768px) {
    .nav-cta {
        display: block;
    }
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-2);
}

@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    z-index: calc(var(--z-fixed) - 1);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition:
        opacity var(--transition-slow),
        visibility var(--transition-slow);
}

.mobile-menu.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
    text-align: center;
}

.mobile-menu .nav-link {
    font-size: var(--text-2xl);
    font-family: var(--font-headline);
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none;
    }
}

/* Footer */
.footer {
    background: var(--color-surface);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer-brand p {
    color: var(--color-text-muted);
    margin-top: var(--space-4);
}

.footer-title {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
    color: var(--color-accent);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-link {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.footer-link:hover {
    color: var(--color-accent);
}

.footer-social {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
    align-items: center;
    margin-bottom: var(--space-6);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-surface);
    color: var(--color-text-muted);
    transition: all 0.2s ease;
}

.social-link:hover {
    background: var(--color-accent);
    color: var(--color-bg);
    transform: translateY(-2px);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: var(--border-subtle);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.footer-quote {
    font-style: italic;
    margin-bottom: var(--space-4);
}