:root {
    --ink: #1d160d;
    --ink-soft: #6a4f2e;
    --paper: #fff9ee;
    --sand: #ecd7b2;
    --gold: #c69334;
    --forest: #2f5a40;
    --night: #162034;
    --line: rgba(29, 22, 13, 0.10);
    --shadow: 0 22px 50px rgba(29, 22, 13, 0.12);
    --shadow-sm: 0 4px 16px rgba(29, 22, 13, 0.08);
    --radius: 20px;
    --radius-sm: 12px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: "Inter", -apple-system, "Segoe UI", sans-serif;
    color: var(--ink);
    background: #faf5ec;
    line-height: 1.6;
    overflow-x: hidden;
}

.container, .nav-container, .hero-container {
    width: min(1140px, 90vw);
    margin: 0 auto;
}

/* ─── Navbar ─── */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(250, 245, 236, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
}

.nav-container {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.logo-icon {
    width: 32px; height: 32px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--gold), #e8b94a);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 0.85rem;
    box-shadow: 0 2px 8px rgba(198, 147, 52, 0.35);
    object-fit: cover;
    overflow: hidden;
}
img.logo-icon {
    background: transparent;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
    padding: 0;
}

.logo-icon-sm {
    width: 24px; height: 24px;
    font-size: 0.7rem;
    border-radius: 7px;
}

.nav-menu {
    display: flex;
    gap: 4px;
}

.nav-link {
    text-decoration: none;
    color: var(--ink-soft);
    padding: 7px 14px;
    font-size: 0.88rem;
    font-weight: 500;
    border-radius: 999px;
    transition: all 0.2s;
}

.nav-link:hover {
    color: var(--ink);
    background: rgba(198, 147, 52, 0.1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    background: rgba(255, 249, 238, 0.9);
    color: var(--ink-soft);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.lang-switch:hover {
    border-color: var(--gold);
    color: var(--gold);
}

/* ─── Buttons ─── */
.btn {
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    padding: 10px 20px;
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.25s;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold), #d9a940);
    border-color: #c8a044;
    color: #1d1306;
    box-shadow: 0 4px 14px rgba(198, 147, 52, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 22px rgba(198, 147, 52, 0.45);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 249, 238, 0.9);
    border-color: var(--line);
    color: var(--ink);
}

.btn-secondary:hover {
    border-color: #c8a044;
    background: #fff5e0;
}

.btn-large {
    padding: 13px 28px;
    font-size: 0.95rem;
}

.btn-nav {
    padding: 7px 18px;
    font-size: 0.85rem;
}

/* ─── Hero ─── */
.hero {
    padding: 120px 0 60px;
    position: relative;
}

.hero-bg-orbs {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.35;
}

.orb-1 {
    width: 500px; height: 500px;
    background: #f0d68a;
    top: -100px; left: -100px;
    animation: orbFloat 12s ease-in-out infinite;
}

.orb-2 {
    width: 400px; height: 400px;
    background: #a8d5a2;
    bottom: -80px; right: -60px;
    animation: orbFloat 15s ease-in-out infinite reverse;
}

.orb-3 {
    width: 300px; height: 300px;
    background: #c4b5f0;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    animation: orbFloat 10s ease-in-out infinite 2s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(30px, -20px); }
    66% { transform: translate(-20px, 15px); }
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
}

.hero-content {
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--gold);
    border: 1px solid rgba(198, 147, 52, 0.3);
    background: rgba(198, 147, 52, 0.08);
    margin-bottom: 20px;
}

.hero-title {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(120deg, #b77716, #dfb35f 50%, #4a7e5f);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-subtitle {
    margin-top: 18px;
    color: var(--ink-soft);
    font-size: 1.05rem;
    max-width: 52ch;
    line-height: 1.7;
}

.hero-buttons {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hero-stats {
    margin-top: 36px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--ink);
}

.stat-label {
    font-size: 0.78rem;
    color: var(--ink-soft);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 32px;
    background: var(--line);
}

/* ─── City Preview (Hero Visual) ─── */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.city-preview {
    width: 340px;
    height: 340px;
    position: relative;
    border-radius: 50%;
    background: rgba(255, 251, 241, 0.6);
    border: 1px solid var(--line);
    box-shadow: var(--shadow), 0 0 0 1px rgba(255,255,255,0.5) inset;
    animation: cityRotate 60s linear infinite;
}

@keyframes cityRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.city-block {
    position: absolute;
    width: 72px; height: 72px;
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.6);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(8px);
    animation: cityRotate 60s linear infinite reverse;
}

.block-icon { font-size: 1.3rem; }

.city-block-social {
    background: rgba(16, 185, 129, 0.2);
    top: 10px; left: 50%;
    transform: translateX(-50%);
}

.city-block-work {
    background: rgba(59, 130, 246, 0.2);
    top: 35%; right: 8px;
}

.city-block-life {
    background: rgba(249, 115, 22, 0.2);
    bottom: 15%; right: 30px;
}

.city-block-transit {
    background: rgba(139, 92, 246, 0.2);
    bottom: 15%; left: 30px;
}

.city-block-community {
    background: rgba(236, 72, 153, 0.2);
    top: 35%; left: 8px;
}

.city-center-label {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--gold);
    letter-spacing: 0.08em;
    opacity: 0.7;
    animation: cityRotate 60s linear infinite reverse;
}

/* ─── Section Headers ─── */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--gold);
    border: 1px solid rgba(198, 147, 52, 0.25);
    background: rgba(198, 147, 52, 0.06);
    margin-bottom: 14px;
}

.section-title {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.01em;
}

.section-desc {
    margin-top: 10px;
    color: var(--ink-soft);
    font-size: 1rem;
}

/* ─── Features ─── */
.features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.feature-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 251, 241, 0.7);
    backdrop-filter: blur(6px);
    box-shadow: var(--shadow-sm);
    transition: all 0.35s cubic-bezier(0.23, 1, 0.32, 1);
    animation: revealUp 0.6s ease both;
}

@keyframes revealUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.feature-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-4px);
    border-color: rgba(198, 147, 52, 0.25);
}

.feature-card-wide {
    grid-column: span 3;
}

.feature-card-inner {
    padding: 28px;
}

.feature-icon-wrap {
    width: 44px; height: 44px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, rgba(198, 147, 52, 0.12), rgba(198, 147, 52, 0.04));
    display: grid;
    place-items: center;
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--ink-soft);
    font-size: 0.92rem;
    line-height: 1.65;
}

.feature-card-wide .feature-card-inner {
    max-width: 720px;
}

/* ─── How It Works ─── */
.how-section {
    padding: 80px 0;
    background: linear-gradient(180deg, transparent 0%, rgba(198, 147, 52, 0.04) 50%, transparent 100%);
}

.steps-grid {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
}

.step-card {
    flex: 1;
    max-width: 320px;
    padding: 32px 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 251, 241, 0.8);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.35s cubic-bezier(0.23, 1, 0.32, 1);
    animation: revealUp 0.6s ease both;
}

.step-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}

.step-number {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--gold), #e8b94a);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 16px;
}

.step-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.step-card p {
    color: var(--ink-soft);
    font-size: 0.9rem;
    line-height: 1.6;
}

.step-connector {
    display: flex;
    align-items: center;
    padding-top: 56px;
    color: var(--sand);
    flex-shrink: 0;
    margin: 0 8px;
}

/* ─── Showcase ─── */
.showcase {
    padding: 80px 0;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.showcase-card {
    text-align: center;
    transition: all 0.35s cubic-bezier(0.23, 1, 0.32, 1);
    animation: revealUp 0.6s ease both;
}

.showcase-mockup {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
    aspect-ratio: 4 / 3;
}

.showcase-card:hover .showcase-mockup {
    transform: translateY(-4px);
    box-shadow: 0 28px 60px rgba(29, 22, 13, 0.18);
}

.showcase-label {
    display: inline-block;
    margin-top: 14px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink-soft);
}

.mockup-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    font-size: 0.72rem;
    font-weight: 600;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.mockup-dots {
    display: flex;
    gap: 5px;
}

.mockup-dots i {
    width: 8px; height: 8px;
    border-radius: 50%;
    display: block;
}

.mockup-scene {
    padding: 16px;
    position: relative;
    min-height: 140px;
}
.mockup-city {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.m-block {
    border-radius: 14px;
    min-height: 44px;
    width: 42%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,0.2);
    transition: transform 0.2s;
}
.m-block span { opacity: 0.85; }
.m-center {
    width: 36%;
    min-height: 36px;
    border-radius: 50%;
    font-size: 0.58rem;
}

.mockup-toolbar {
    display: flex;
    justify-content: center;
    gap: 6px;
    padding: 6px 14px 10px;
}
.mockup-pill {
    font-size: 0.56rem;
    padding: 3px 8px;
    border-radius: 10px;
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
}
.mockup-pill.active { background: rgba(255,255,255,0.2); color: #fff; }

/* Neo Metro theme — dark futuristic */
.mockup-neo {
    background: linear-gradient(135deg, #0f0c29 0%, #1a1a3e 50%, #24243e 100%);
}
.mockup-neo .mockup-topbar {
    color: #a5b4fc;
    border-bottom-color: rgba(165, 180, 252, 0.12);
}
.mockup-neo .mockup-dots i:nth-child(1) { background: #f87171; }
.mockup-neo .mockup-dots i:nth-child(2) { background: #fbbf24; }
.mockup-neo .mockup-dots i:nth-child(3) { background: #34d399; }

.mockup-neo .m-social { background: rgba(99, 102, 241, 0.3); color: #a5b4fc; box-shadow: 0 0 16px rgba(99,102,241,0.15); }
.mockup-neo .m-work { background: rgba(59, 130, 246, 0.3); color: #93c5fd; box-shadow: 0 0 16px rgba(59,130,246,0.15); }
.mockup-neo .m-life { background: rgba(236, 72, 153, 0.25); color: #f9a8d4; box-shadow: 0 0 16px rgba(236,72,153,0.12); }
.mockup-neo .m-transit { background: rgba(139, 92, 246, 0.25); color: #c4b5fd; box-shadow: 0 0 16px rgba(139,92,246,0.12); }
.mockup-neo .m-center { background: rgba(99, 102, 241, 0.4); color: #e0e7ff; border-color: rgba(165,180,252,0.3); }

/* Golden Meadow theme — warm nature */
.mockup-nature {
    background: linear-gradient(180deg, #87CEEB 0%, #8FBC8F 35%, #DAA520 100%);
}
.mockup-nature .mockup-topbar {
    color: #3d5a1e;
    border-bottom-color: rgba(61, 90, 30, 0.12);
}
.mockup-nature .mockup-dots i:nth-child(1) { background: #ef4444; }
.mockup-nature .mockup-dots i:nth-child(2) { background: #eab308; }
.mockup-nature .mockup-dots i:nth-child(3) { background: #22c55e; }

.mockup-nature .m-social { background: rgba(34, 197, 94, 0.35); color: #166534; border-color: rgba(34,197,94,0.2); }
.mockup-nature .m-work { background: rgba(59, 130, 246, 0.3); color: #1e3a5f; border-color: rgba(59,130,246,0.15); }
.mockup-nature .m-life { background: rgba(249, 115, 22, 0.3); color: #7c2d12; border-color: rgba(249,115,22,0.15); }
.mockup-nature .m-transit { background: rgba(139, 92, 246, 0.25); color: #4c1d95; border-color: rgba(139,92,246,0.15); }
.mockup-nature .m-center { background: rgba(218, 165, 32, 0.45); color: #422006; border-color: rgba(218,165,32,0.3); }
.mockup-nature .mockup-pill { background: rgba(0,0,0,0.12); color: rgba(0,0,0,0.5); }
.mockup-nature .mockup-pill.active { background: rgba(0,0,0,0.2); color: #1a1a1a; }

/* Cloud Temple theme — ethereal mist */
.mockup-cloud {
    background: linear-gradient(135deg, #1a1a2e 0%, #2d2b55 40%, #3b3875 100%);
}
.mockup-cloud .mockup-topbar {
    color: #c4b5fd;
    border-bottom-color: rgba(196, 181, 253, 0.12);
}
.mockup-cloud .mockup-dots i:nth-child(1) { background: #f87171; }
.mockup-cloud .mockup-dots i:nth-child(2) { background: #fbbf24; }
.mockup-cloud .mockup-dots i:nth-child(3) { background: #a78bfa; }

.mockup-cloud .m-social { background: rgba(167, 139, 250, 0.3); color: #ddd6fe; box-shadow: 0 0 14px rgba(167,139,250,0.1); }
.mockup-cloud .m-work { background: rgba(96, 165, 250, 0.25); color: #bfdbfe; box-shadow: 0 0 14px rgba(96,165,250,0.1); }
.mockup-cloud .m-life { background: rgba(244, 114, 182, 0.25); color: #fbcfe8; box-shadow: 0 0 14px rgba(244,114,182,0.1); }
.mockup-cloud .m-transit { background: rgba(45, 212, 191, 0.2); color: #99f6e4; box-shadow: 0 0 14px rgba(45,212,191,0.08); }
.mockup-cloud .m-center { background: rgba(196, 181, 253, 0.35); color: #ede9fe; border-color: rgba(196,181,253,0.3); }

/* ─── CTA ─── */
.cta {
    padding: 80px 0 100px;
}

.cta-content {
    text-align: center;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: linear-gradient(135deg, rgba(255, 243, 220, 0.8) 0%, rgba(241, 251, 246, 0.8) 100%);
    backdrop-filter: blur(10px);
    padding: 56px 40px;
    box-shadow: var(--shadow);
}

.cta-content h2 {
    font-size: clamp(1.5rem, 2.8vw, 2.2rem);
    font-weight: 800;
}

.cta-content p {
    color: var(--ink-soft);
    margin: 14px 0 28px;
    font-size: 1.05rem;
}

/* ─── Footer ─── */
.footer {
    border-top: 1px solid var(--line);
    background: rgba(250, 245, 236, 0.8);
}

.footer-content {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 16px;
}

.footer-links a {
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.footer-bottom {
    border-top: 1px solid var(--line);
    padding: 14px 0 20px;
}

.footer-bottom p {
    color: var(--ink-soft);
    font-size: 0.85rem;
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { margin-top: 20px; }
    .city-preview { width: 280px; height: 280px; }
    .city-block { width: 60px; height: 60px; }
    .features-grid { grid-template-columns: 1fr; }
    .feature-card-wide { grid-column: span 1; }
    .steps-grid { flex-direction: column; align-items: center; gap: 16px; }
    .step-connector { display: none; }
    .showcase-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .nav-menu { display: none; }
}

@media (max-width: 600px) {
    .hero { padding-top: 90px; }
    .hero-title { font-size: 1.8rem; }
    .city-preview { width: 240px; height: 240px; }
    .city-block { width: 52px; height: 52px; font-size: 0.6rem; border-radius: 14px; }
    .block-icon { font-size: 1.1rem; }
    .cta-content { padding: 36px 20px; }
}

@media (max-width: 700px) {
    .nav-container {
        min-height: 64px;
        flex-direction: column;
        justify-content: center;
        gap: 8px;
        padding: 8px 0;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }
}