/* ============================================================
   Vạn Giới Tu Tiên, Landing page CSS
   Mobile-first, dark cultivation theme.
   Palette: deep purple-blue + gold accent + jade highlights.
   ============================================================ */

:root {
    /* Palette */
    --bg-deep: #0a0118;
    --bg-card: #1a0d2e;
    --bg-elevated: #2a1a4a;
    --accent-gold: #fbbf24;
    --accent-gold-soft: rgba(251, 191, 36, 0.15);
    --accent-jade: #06b6d4;
    --accent-purple: #8b5cf6;
    --accent-purple-deep: #4c1d95;
    --text-primary: #f5f3ff;
    --text-secondary: #c4b5fd;
    --text-muted: #8b7fa8;
    --border: rgba(139, 92, 246, 0.2);
    --border-hover: rgba(251, 191, 36, 0.4);

    /* Typography */
    --font-serif: "Noto Serif SC", "Songti SC", "STSong", serif;
    --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

    /* Sizing */
    --container-narrow: 768px;
    --container-wide: 1200px;
    --radius: 0.75rem;
    --radius-lg: 1.5rem;
    --nav-height: 64px;

    /* Easing */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }

body {
    margin: 0;
    padding: 0;
    background:
        radial-gradient(ellipse at top, rgba(76, 29, 149, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
}

a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: color 0.2s var(--ease-out);
}
a:hover { color: var(--accent-jade); }

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

::selection { background: var(--accent-gold); color: var(--bg-deep); }

[x-cloak] { display: none !important; }

/* Skip link (a11y) */
.skip-link {
    position: absolute;
    top: -100px;
    left: 1rem;
    background: var(--accent-gold);
    color: var(--bg-deep);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-weight: 700;
    z-index: 1000;
    transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* Focus visible (a11y) */
:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ============================================================
   Top Nav
   ============================================================ */
.nav-bar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(10, 1, 24, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    transition: border-color 0.3s, background 0.3s;
}

.nav-container {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: var(--nav-height);
}

.nav-scrolled {
    border-bottom-color: var(--border-hover);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.1rem;
}
.brand:hover { color: var(--accent-gold); }

.brand-icon {
    font-size: 1.5rem;
    color: var(--accent-gold);
    line-height: 1;
    text-shadow: 0 0 12px rgba(251, 191, 36, 0.4);
}

.nav-links {
    display: none;
    align-items: center;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    position: relative;
}
.nav-links a:hover { color: var(--accent-gold); }
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 0; height: 2px;
    background: var(--accent-gold);
    transition: width 0.3s var(--ease-out);
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.cta-link {
    background: var(--accent-gold);
    color: var(--bg-deep) !important;
    padding: 0.45rem 1rem;
    border-radius: 999px;
    font-weight: 700 !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
}
.cta-link:hover {
    background: var(--accent-jade);
    color: var(--bg-deep) !important;
    transform: translateY(-1px);
}
.cta-link::after { display: none; }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-toggle {
    border: 1px solid var(--border-hover);
    color: var(--accent-gold);
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    transition: all 0.2s var(--ease-out);
}
.lang-toggle:hover {
    background: var(--accent-gold);
    color: var(--bg-deep) !important;
    border-color: var(--accent-gold);
}

/* Hamburger */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
}
.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s var(--ease-out);
    transform-origin: center;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile drawer */
.nav-mobile {
    display: flex;
    flex-direction: column;
    background: var(--bg-deep);
    border-top: 1px solid var(--border);
    padding: 1rem;
    gap: 0.25rem;
}
.nav-mobile a {
    color: var(--text-primary);
    padding: 0.85rem 1rem;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    transition: background 0.2s;
}
.nav-mobile a:hover {
    background: var(--bg-elevated);
    color: var(--accent-gold);
}
.nav-mobile .cta-link {
    margin-top: 0.5rem;
    text-align: center;
    color: var(--bg-deep) !important;
}

/* Desktop nav */
@media (min-width: 769px) {
    .nav-links { display: flex; }
    .nav-toggle { display: none; }
    .nav-mobile { display: none !important; }
    .nav-container { padding: 0.75rem 2rem; }
    .brand { font-size: 1.25rem; }
    .brand-icon { font-size: 1.75rem; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh; /* small viewport height — fix mobile URL bar */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: calc(var(--nav-height) + 2rem) 1.25rem 3rem;
}

.hero-bg {
    position: absolute;
    inset: -20% 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(139, 92, 246, 0.4) 0%, transparent 40%),
        radial-gradient(ellipse at 70% 80%, rgba(6, 182, 212, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at center, rgba(251, 191, 36, 0.05) 0%, transparent 60%),
        linear-gradient(180deg, var(--bg-deep) 0%, #1a0d2e 50%, var(--bg-deep) 100%);
    will-change: transform;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(1px 1px at 25% 35%, white, transparent),
        radial-gradient(1px 1px at 50% 70%, white, transparent),
        radial-gradient(2px 2px at 80% 20%, rgba(251, 191, 36, 0.8), transparent),
        radial-gradient(1px 1px at 15% 85%, white, transparent),
        radial-gradient(1px 1px at 65% 50%, rgba(139, 92, 246, 0.6), transparent),
        radial-gradient(1px 1px at 90% 90%, white, transparent),
        radial-gradient(2px 2px at 10% 10%, rgba(6, 182, 212, 0.6), transparent);
    background-size: 320px 320px;
    background-repeat: repeat;
    opacity: 0.6;
    animation: twinkle 8s ease-in-out infinite;
}
@keyframes twinkle {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 0.9; }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(10, 1, 24, 0.3) 60%, var(--bg-deep) 100%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-gold-soft);
    border: 1px solid var(--border-hover);
    color: var(--accent-gold);
    padding: 0.4rem 1rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    backdrop-filter: blur(4px);
}

.pulse-dot {
    width: 8px; height: 8px;
    background: var(--accent-gold);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px var(--accent-gold);
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 12vw, 6rem);
    font-weight: 900;
    line-height: 1.05;
    margin: 0 0 1rem;
    background: linear-gradient(135deg, var(--accent-gold) 0%, #fef3c7 50%, var(--accent-gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 80px rgba(251, 191, 36, 0.3);
    letter-spacing: 0.01em;
}

.hero-subtitle {
    font-size: clamp(0.95rem, 4vw, 1.25rem);
    color: var(--text-secondary);
    margin: 0 auto 2rem;
    max-width: 600px;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 1.75rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s var(--ease-out);
    cursor: pointer;
    border: none;
    text-decoration: none;
    min-height: 48px; /* touch target */
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold) 0%, #f59e0b 100%);
    color: var(--bg-deep);
    box-shadow: 0 4px 20px rgba(251, 191, 36, 0.4);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(251, 191, 36, 0.6);
    color: var(--bg-deep);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    border: 1.5px solid var(--border);
    backdrop-filter: blur(8px);
}
.btn-secondary:hover {
    border-color: var(--accent-gold);
    background: var(--accent-gold-soft);
    color: var(--text-primary);
}

.btn-icon {
    font-size: 1.1rem;
    line-height: 1;
}

.hero-coming-soon {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
    margin: 0;
}

.scroll-indicator {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    text-decoration: none;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: color 0.2s, background 0.2s;
}
.scroll-indicator:hover {
    color: var(--accent-gold);
    background: var(--accent-gold-soft);
}
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-8px); }
    60% { transform: translateX(-50%) translateY(-4px); }
}

/* ============================================================
   Section common
   ============================================================ */
.section {
    padding: 4rem 1.25rem;
    position: relative;
}
@media (min-width: 769px) {
    .section { padding: 6rem 2rem; }
}

.container {
    max-width: var(--container-wide);
    margin: 0 auto;
}
.container-narrow {
    max-width: var(--container-narrow);
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}
@media (min-width: 769px) {
    .section-header { margin-bottom: 4rem; }
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.75rem, 6vw, 3rem);
    font-weight: 800;
    margin: 0 0 0.75rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.section-header p {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================================
   Features grid
   ============================================================ */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}
@media (min-width: 540px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
}
@media (min-width: 1024px) {
    .features-grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-gold-soft) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}
.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(139, 92, 246, 0.2);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon {
    font-size: 2.25rem;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
}
.feature-card h3 {
    color: var(--accent-gold);
    font-size: 1.15rem;
    margin: 0 0 0.5rem;
    position: relative;
    z-index: 1;
}
.feature-card p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
}

/* ============================================================
   Heroes highlight
   ============================================================ */
.heroes-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}
@media (min-width: 540px) {
    .heroes-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
}
@media (min-width: 1024px) {
    .heroes-grid { grid-template-columns: repeat(4, 1fr); gap: 1.75rem; }
}

.hero-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s var(--ease-out);
}
.hero-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.5);
}

.hero-portrait {
    position: relative;
    height: 240px;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
@media (min-width: 769px) {
    .hero-portrait { height: 280px; }
}
.hero-portrait-bg {
    position: absolute;
    inset: 0;
    background: var(--card-bg);
    opacity: 0.8;
}
.hero-portrait-placeholder {
    position: relative;
    z-index: 1;
    font-family: var(--font-serif);
    font-size: 5rem;
    font-weight: 900;
    color: var(--text-primary);
    opacity: 0.4;
    text-shadow: 0 0 40px rgba(255, 255, 255, 0.3);
}
@media (min-width: 769px) {
    .hero-portrait-placeholder { font-size: 6rem; }
}

.rarity-badge {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    z-index: 2;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.05em;
}
.rarity-sp {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: var(--bg-deep);
    box-shadow: 0 0 20px rgba(251, 191, 36, 0.6);
}
.rarity-ssr {
    background: linear-gradient(135deg, #a855f7, #ec4899);
    color: white;
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.5);
}

.hero-info { padding: 1.25rem; }
@media (min-width: 769px) { .hero-info { padding: 1.5rem; } }
.hero-info h3 {
    margin: 0 0 0.5rem;
    color: var(--text-primary);
    font-family: var(--font-serif);
    font-size: 1.35rem;
}
.hero-tags {
    display: flex;
    gap: 0.4rem;
    margin-bottom: 0.85rem;
    flex-wrap: wrap;
}
.tag {
    background: var(--accent-gold-soft);
    border: 1px solid var(--border-hover);
    color: var(--accent-gold);
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
}
.hero-lore {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    margin: 0;
    font-style: italic;
}

/* ============================================================
   Download
   ============================================================ */
.download-section {
    background: radial-gradient(ellipse at center, rgba(251, 191, 36, 0.05) 0%, transparent 60%);
}

.download-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}
.download-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.85rem 1.25rem;
    cursor: not-allowed;
    opacity: 0.7;
    transition: all 0.3s;
    min-width: 200px;
}
.download-badge:hover {
    border-color: var(--border-hover);
    opacity: 1;
    transform: translateY(-2px);
}
.badge-icon {
    font-size: 1.75rem;
    width: 36px;
    text-align: center;
}
.badge-text small {
    display: block;
    color: var(--text-muted);
    font-size: 0.7rem;
    margin-bottom: 0.2rem;
}
.badge-text strong {
    display: block;
    color: var(--text-primary);
    font-size: 0.95rem;
}
.system-req {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0;
}

/* ============================================================
   Roadmap timeline
   ============================================================ */
.roadmap-timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    list-style: none;
    padding: 0;
}
.roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(180deg,
        var(--accent-gold) 0%, var(--accent-purple) 50%, var(--border) 100%);
}
@media (min-width: 769px) {
    .roadmap-timeline::before { left: 24px; }
}

.roadmap-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 1.5rem;
}
.roadmap-item:last-child { margin-bottom: 0; }
@media (min-width: 769px) {
    .roadmap-item { padding-left: 70px; margin-bottom: 2rem; }
}

.phase-number {
    position: absolute;
    left: 0; top: 0;
    width: 42px; height: 42px;
    background: var(--bg-deep);
    border: 2px solid var(--accent-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: var(--accent-gold);
    z-index: 2;
    font-size: 0.9rem;
}
@media (min-width: 769px) {
    .phase-number { width: 50px; height: 50px; font-size: 1rem; }
}

.phase-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    transition: all 0.3s;
}
.phase-content:hover {
    border-color: var(--border-hover);
    transform: translateX(4px);
}
.phase-content h3 {
    margin: 0 0 0.25rem;
    color: var(--text-primary);
    font-size: 1.05rem;
    font-family: var(--font-serif);
}
.phase-duration {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0 0 0.5rem;
}
.phase-status {
    display: inline-block;
    padding: 0.2rem 0.7rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.status-done {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}
.status-in-progress {
    background: var(--accent-gold-soft);
    color: var(--accent-gold);
    border: 1px solid var(--border-hover);
}
.status-planning {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
    border: 1px solid rgba(139, 92, 246, 0.3);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.3s;
}
.faq-item[open] { border-color: var(--border-hover); }
.faq-item summary {
    padding: 1rem 1.25rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
    list-style: none;
    position: relative;
    padding-right: 3rem;
    font-size: 0.95rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-gold);
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform 0.3s;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-answer {
    padding: 0 1.25rem 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}
.faq-answer p { margin: 0; }

/* ============================================================
   Footer
   ============================================================ */
.footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--border);
    padding: 2.5rem 1.25rem 1.5rem;
    margin-top: 3rem;
}
.footer-container {
    max-width: var(--container-wide);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    text-align: center;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    justify-content: center;
}
.footer-brand strong {
    color: var(--text-primary);
    font-family: var(--font-serif);
    font-size: 1.05rem;
    display: block;
}
.footer-brand p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0;
}
.footer-social {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
}
.footer-social a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}
.footer-social a:hover { color: var(--accent-gold); }
.footer-legal {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.85rem;
    align-items: center;
}
.footer-legal a { color: var(--text-muted); }
.footer-legal a:hover { color: var(--accent-gold); }
.footer-legal span {
    color: var(--text-muted);
    margin-top: 0.25rem;
}

@media (min-width: 769px) {
    .footer { padding: 3rem 2rem 2rem; margin-top: 4rem; }
    .footer-container {
        grid-template-columns: 1fr auto 1fr;
        align-items: center;
        text-align: left;
    }
    .footer-brand { justify-content: flex-start; }
    .footer-legal {
        text-align: right;
        align-items: flex-end;
    }
}

/* ============================================================
   Animations on scroll
   ============================================================ */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .fade-in { opacity: 1; transform: none; }
}

/* ============================================================
   Mobile tweaks
   ============================================================ */
@media (max-width: 540px) {
    .hero-cta { flex-direction: column; width: 100%; }
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    .download-badges { flex-direction: column; }
    .download-badge { min-width: auto; }
}