:root {
    --bg:          #0A0A0A;
    --bg-2:        #111111;
    --bg-3:        #181818;
    --border:      rgba(255,255,255,0.07);
    --accent:      #F5A623;
    --accent-dim:  rgba(245,166,35,0.15);
    --accent-glow: rgba(245,166,35,0.35);
    --text:        #FFFFFF;
    --text-2:      #A0A0A0;
    --text-3:      #606060;
    --radius:      12px;
    --radius-sm:   8px;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ── Animations ─────────────────────────────────────────────────────────── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(0.8); }
}
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50%       { transform: translateY(-12px); }
}
@keyframes glow-pulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50%       { opacity: 0.7; transform: scale(1.08); }
}
@keyframes scroll-hint {
    0%   { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(12px); }
}
@keyframes particle-float {
    0%   { transform: translateY(0) translateX(0) scale(1); opacity: 0.6; }
    50%  { transform: translateY(-40px) translateX(20px) scale(1.2); opacity: 0.3; }
    100% { transform: translateY(-80px) translateX(-10px) scale(0.8); opacity: 0; }
}
@keyframes nav-slide {
    from { transform: translateY(-100%); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
}
@keyframes lightbox-in {
    from { opacity: 0; transform: scale(0.92); }
    to   { opacity: 1; transform: scale(1); }
}

.animate-fade-up {
    opacity: 0;
    animation: fadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: var(--delay, 0ms);
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay: var(--delay, 0ms);
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Nav ─────────────────────────────────────────────────────────────────── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 0 24px;
    animation: nav-slide 0.5s ease forwards;
    transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
    border-bottom: 1px solid transparent;
}
.nav.scrolled {
    background: rgba(10,10,10,0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-color: var(--border);
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 64px;
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-logo {
    font-size: 1.4rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    color: var(--text);
    flex-shrink: 0;
}
.nav-logo span { color: var(--accent); }
.nav-links {
    display: flex;
    gap: 28px;
    flex: 1;
}
.nav-links a {
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn-download {
    background: var(--accent);
    color: #0A0A0A;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
    text-decoration: none;
    flex-direction: row;
    position: relative;
    overflow: hidden;
}
.btn-download::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.2s;
}
.btn-download:hover::after { opacity: 1; }
.btn-download:hover {
    background: #e09510;
    transform: translateY(-2px);
    box-shadow: 0 8px 32px var(--accent-glow);
}
.btn-download:active { transform: translateY(0); }

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
    border-radius: var(--radius-sm);
}
.btn-sm {
    padding: 8px 20px;
    font-size: 0.875rem;
}
.btn-meta {
    font-size: 0.72rem;
    font-weight: 400;
    opacity: 0.7;
    margin-left: 2px;
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    padding: 16px 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-2);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.btn-ghost:hover {
    border-color: rgba(255,255,255,0.2);
    color: var(--text);
    background: rgba(255,255,255,0.04);
}

/* ── Section common ──────────────────────────────────────────────────────── */
section { padding: 100px 24px; }
.section-inner { max-width: 1200px; margin: 0 auto; }
.section-label {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 16px;
}
section h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 56px;
    line-height: 1.15;
}

/* ── Hero ────────────────────────────────────────────────────────────────── */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: glow-pulse 6s ease-in-out infinite;
}
.hero-glow-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(245,166,35,0.18) 0%, transparent 70%);
    top: -100px; left: 50%;
    transform: translateX(-50%);
    animation-delay: 0s;
}
.hero-glow-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(245,166,35,0.1) 0%, transparent 70%);
    bottom: 0; right: 10%;
    animation-delay: 3s;
}
.hero-particles {
    position: absolute;
    inset: 0;
}
.particle {
    position: absolute;
    width: 3px; height: 3px;
    background: var(--accent);
    border-radius: 50%;
    animation: particle-float linear infinite;
    opacity: 0;
}
.hero-content { position: relative; z-index: 1; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245,166,35,0.1);
    border: 1px solid rgba(245,166,35,0.25);
    color: var(--accent);
    padding: 7px 18px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 28px;
}
.badge-dot {
    width: 7px; height: 7px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}
.hero h1 {
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.0;
    margin-bottom: 24px;
}
.accent-text {
    background: linear-gradient(135deg, #F5A623 0%, #FFD166 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    color: var(--text-2);
    font-size: clamp(1rem, 2vw, 1.2rem);
    max-width: 560px;
    margin: 0 auto 40px;
    line-height: 1.7;
}
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.hero-size {
    color: var(--text-3);
    font-size: 0.82rem;
    min-height: 1.2em;
}
.hero-scroll-hint {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
}
.hero-scroll-hint span {
    display: block;
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    margin: 0 auto;
    animation: scroll-hint 1.5s ease-in-out infinite;
    border-radius: 2px;
}

/* ── Features ────────────────────────────────────────────────────────────── */
.features { background: var(--bg-2); }
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.feature-card {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.feature-card:hover {
    border-color: rgba(245,166,35,0.3);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}
.feature-icon {
    width: 48px; height: 48px;
    background: var(--accent-dim);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.feature-icon svg {
    width: 22px; height: 22px;
    stroke: var(--accent);
}
.feature-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text);
}
.feature-card p { color: var(--text-2); font-size: 0.92rem; line-height: 1.65; }

/* ── Gallery ─────────────────────────────────────────────────────────────── */
.gallery { background: var(--bg); }
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: 12px;
}
.gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16/9;
    background: var(--bg-3);
}
.gallery-item--large {
    grid-column: span 2;
    grid-row: span 1;
}
.gallery-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}
.gallery-item:hover img { transform: scale(1.05); }
.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-overlay span {
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: 1px solid rgba(255,255,255,0.5);
    padding: 8px 20px;
    border-radius: 100px;
}

/* ── Lightbox ────────────────────────────────────────────────────────────── */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0,0,0,0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
}
.lightbox.open {
    opacity: 1;
    pointer-events: all;
}
.lightbox-img-wrap {
    max-width: 90vw;
    max-height: 85vh;
    animation: lightbox-in 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.lightbox-img {
    max-width: 90vw;
    max-height: 85vh;
    border-radius: var(--radius);
    display: block;
    box-shadow: 0 32px 80px rgba(0,0,0,0.8);
}
.lightbox-close {
    position: absolute;
    top: 20px; right: 20px;
    width: 44px; height: 44px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    color: #fff;
}
.lightbox-close:hover { background: rgba(255,255,255,0.2); }
.lightbox-close svg { width: 18px; height: 18px; }
.lightbox-nav {
    position: absolute;
    top: 50%; transform: translateY(-50%);
    width: 52px; height: 52px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    color: #fff;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.18); }
.lightbox-nav svg { width: 22px; height: 22px; }
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }
.lightbox-counter {
    position: absolute;
    bottom: 20px; left: 50%;
    transform: translateX(-50%);
    color: var(--text-2);
    font-size: 0.85rem;
}

/* ── Changelog ───────────────────────────────────────────────────────────── */
.changelog { background: var(--bg-2); }
.changelog-box {
    max-width: 720px;
    margin: 0 auto;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 32px;
    color: var(--text-2);
    font-size: 0.93rem;
    line-height: 1.85;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ── Community ───────────────────────────────────────────────────────────── */
.community { background: var(--bg); }
.community-sub {
    color: var(--text-2);
    margin-top: -36px;
    margin-bottom: 48px;
    font-size: 1rem;
}
.community-links {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.community-card {
    flex: 1;
    min-width: 220px;
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 28px;
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}
.community-card:hover {
    border-color: rgba(245,166,35,0.35);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}
.community-card svg {
    width: 32px; height: 32px;
    color: var(--accent);
    flex-shrink: 0;
}
.community-card strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 2px;
}
.community-card span {
    font-size: 0.82rem;
    color: var(--text-2);
}

/* ── Download CTA ────────────────────────────────────────────────────────── */
.download-cta {
    background: var(--bg-2);
    padding: 100px 24px;
}
.download-cta-inner {
    position: relative;
    text-align: center;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 72px 40px;
    overflow: hidden;
}
.download-cta-glow {
    position: absolute;
    top: -80px; left: 50%;
    transform: translateX(-50%);
    width: 500px; height: 300px;
    background: radial-gradient(ellipse, rgba(245,166,35,0.15) 0%, transparent 70%);
    pointer-events: none;
}
.download-cta-inner h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}
.download-cta-inner p {
    color: var(--text-2);
    margin-bottom: 36px;
    font-size: 1rem;
}
.online-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-dim);
    border: 1px solid rgba(245,166,35,0.25);
    color: var(--accent);
    padding: 7px 18px;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: 20px;
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 48px 24px;
    text-align: center;
}
.footer-logo {
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.footer-logo span { color: var(--accent); }
.footer p {
    color: var(--text-3);
    font-size: 0.85rem;
    line-height: 1.7;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .gallery-item--large {
        grid-column: span 2;
    }
    .nav-links { display: none; }
}

@media (max-width: 640px) {
    section { padding: 72px 16px; }
    .hero { padding: 100px 16px 72px; }
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    .gallery-item--large { grid-column: span 1; }
    .hero-actions { flex-direction: column; align-items: center; }
    .btn-lg { width: 100%; max-width: 320px; justify-content: center; }
    .btn-ghost { width: 100%; max-width: 320px; justify-content: center; }
    .lightbox-prev { left: 8px; }
    .lightbox-next { right: 8px; }
    .download-cta-inner { padding: 48px 20px; }
    .community-card { min-width: 100%; }
}

@media (min-width: 2560px) {
    .section-inner { max-width: 1600px; }
}

/* ── About ───────────────────────────────────────────────────────────────── */
.about { background: var(--bg-2); }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}
.about-text p {
    color: var(--text-2);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 16px;
}
.about-text strong { color: var(--text); font-weight: 700; }
.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
}
.tag {
    display: inline-block;
    background: var(--accent-dim);
    border: 1px solid rgba(245,166,35,0.25);
    color: var(--accent);
    padding: 5px 14px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
}
.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.stat-card {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 20px;
    text-align: center;
    transition: border-color 0.25s, transform 0.25s;
}
.stat-card:hover {
    border-color: rgba(245,166,35,0.3);
    transform: translateY(-3px);
}
.stat-num {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--accent);
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 6px;
}
.stat-label {
    font-size: 0.8rem;
    color: var(--text-2);
    font-weight: 500;
}

/* ── Coming badge ────────────────────────────────────────────────────────── */
.coming-badge {
    display: inline-block;
    background: rgba(100,100,255,0.15);
    border: 1px solid rgba(100,100,255,0.3);
    color: #8888ff;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 100px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    vertical-align: middle;
    margin-left: 6px;
}
.feature-card--coming { opacity: 0.75; }
.feature-card--coming:hover { opacity: 1; }

/* ── Roadmap ─────────────────────────────────────────────────────────────── */
.roadmap { background: var(--bg); }
.roadmap-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 720px;
    margin: 0 auto;
    position: relative;
}
.roadmap-list::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 12px;
    bottom: 12px;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--border));
}
.roadmap-item {
    display: flex;
    gap: 28px;
    padding: 0 0 40px 0;
    position: relative;
}
.roadmap-item:last-child { padding-bottom: 0; }
.roadmap-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-3);
    border: 2px solid var(--border);
    flex-shrink: 0;
    margin-top: 2px;
    position: relative;
    z-index: 1;
}
.roadmap-dot--done {
    background: var(--accent);
    border-color: var(--accent);
}
.roadmap-dot--active {
    background: var(--bg);
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-dim);
    animation: pulse-dot 2s ease-in-out infinite;
}
.roadmap-content { flex: 1; }
.roadmap-status {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 6px;
}
.roadmap-status--active { color: var(--accent); }
.roadmap-content h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}
.roadmap-content p { color: var(--text-2); font-size: 0.92rem; line-height: 1.65; }

/* ── Footer link ─────────────────────────────────────────────────────────── */
.footer a {
    color: var(--accent);
    text-decoration: none;
}
.footer a:hover { text-decoration: underline; }

/* ── About responsive ────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .about-grid { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 640px) {
    .about-stats { grid-template-columns: 1fr 1fr; }
    .roadmap-list::before { left: 9px; }
    .roadmap-dot { width: 20px; height: 20px; }
}