/* N1KO-STATE landing — refined marketing layout */
:root {
  --accent: #5e5ce6;
  --accent-soft: #7b79ff;
  --accent-glow: rgba(94, 92, 230, 0.42);
  --surface: #08080b;
  --surface-2: #101015;
  --card: #16161d;
  --card-hover: #1c1c25;
  --stroke: rgba(255, 255, 255, 0.07);
  --stroke-strong: rgba(255, 255, 255, 0.12);
  --text: #f5f5f7;
  --text-secondary: rgba(245, 245, 247, 0.62);
  --text-tertiary: rgba(245, 245, 247, 0.38);
  --ok: #32d74b;
  --info: #0a84ff;
  --gpu: #ff6482;
  --memory: #bf5af2;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --radius: 18px;
  --radius-sm: 12px;
  --max-w: 1160px;
  --nav-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  background: var(--surface);
  color: var(--text);
  line-height: 1.55;
  overflow-x: hidden;
}

.bg-mesh {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 90% 55% at 50% -15%, rgba(94, 92, 230, 0.22), transparent 55%),
    radial-gradient(ellipse 45% 35% at 95% 20%, rgba(191, 90, 242, 0.1), transparent),
    radial-gradient(ellipse 40% 30% at 5% 75%, rgba(10, 132, 255, 0.07), transparent),
    var(--surface);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.container { width: min(100% - 40px, var(--max-w)); margin-inline: auto; }

/* ── Nav ── */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--nav-h);
  border-bottom: 1px solid var(--stroke);
  background: rgba(8, 8, 11, 0.78);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
}

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  width: min(100% - 40px, var(--max-w)); margin-inline: auto; height: 100%;
}

.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 600; font-size: 1rem;
  letter-spacing: -0.02em;
}

.brand img {
  width: 34px; height: 34px; border-radius: 8px;
  box-shadow: 0 0 0 1px var(--stroke);
}

.nav-links { display: flex; gap: 4px; list-style: none; }
.nav-links a {
  padding: 8px 12px; font-size: 0.88rem; color: var(--text-secondary);
  border-radius: 8px; transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

.nav-actions { display: flex; align-items: center; gap: 8px; }

.lang-toggle {
  display: flex; padding: 3px; gap: 2px;
  background: var(--card); border: 1px solid var(--stroke); border-radius: 999px;
}
.lang-toggle button {
  font: 500 0.75rem var(--font-body);
  padding: 5px 11px; border: none; border-radius: 999px;
  background: transparent; color: var(--text-tertiary); cursor: pointer;
  display: inline-block !important;
}
.lang-toggle button.active { background: var(--accent); color: #fff; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; font: 600 0.92rem var(--font-body);
  border: none; border-radius: 11px; cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}
.btn:active { transform: scale(0.98); }
.btn svg { width: 17px; height: 17px; flex-shrink: 0; }

.btn-primary {
  color: #fff; background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  box-shadow: 0 1px 0 rgba(255,255,255,0.12) inset, 0 10px 30px var(--accent-glow);
}
.btn-primary:hover { box-shadow: 0 1px 0 rgba(255,255,255,0.15) inset, 0 14px 36px var(--accent-glow); }

.btn-ghost {
  color: var(--text); background: rgba(255,255,255,0.05);
  border: 1px solid var(--stroke);
}
.btn-ghost:hover { background: rgba(255,255,255,0.08); }
.btn-sm { padding: 7px 14px; font-size: 0.84rem; }

/* ── Hero ── */
.hero {
  padding: calc(var(--nav-h) + 48px) 0 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 48px;
  align-items: center;
}

.hero-copy { max-width: 34rem; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px 5px 8px; margin-bottom: 20px;
  border-radius: 999px; font-size: 0.78rem; color: #b8b6ff;
  background: rgba(94, 92, 230, 0.14); border: 1px solid rgba(94, 92, 230, 0.28);
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--ok); box-shadow: 0 0 8px rgba(50, 215, 75, 0.6);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.35rem);
  font-weight: 700; line-height: 1.06; letter-spacing: -0.035em;
}
.hero h1 .gradient {
  background: linear-gradient(120deg, #fff 20%, #c4c2ff 55%, var(--memory));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  margin-top: 18px; font-size: 1.05rem; color: var(--text-secondary);
  max-width: 32ch;
}
.hero-sub strong { color: var(--text); font-weight: 600; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }

.hero-meta {
  display: flex; flex-wrap: wrap; gap: 16px; margin-top: 22px;
  font-size: 0.8rem; color: var(--text-tertiary);
}
.hero-meta span { display: flex; align-items: center; gap: 6px; }
.hero-meta span::before {
  content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--stroke-strong);
}

/* Mac window frame */
.mac-frame {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--stroke-strong);
  background: #0a0a0e;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03) inset,
    0 28px 60px -20px rgba(0,0,0,0.75),
    0 0 80px -20px var(--accent-glow);
}

.mac-chrome {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 14px;
  background: linear-gradient(180deg, #1a1a22, #121218);
  border-bottom: 1px solid var(--stroke);
}
.mac-chrome .dot { width: 11px; height: 11px; border-radius: 50%; }
.mac-chrome .dot.r { background: #ff5f57; }
.mac-chrome .dot.y { background: #febc2e; }
.mac-chrome .dot.g { background: #28c840; }
.mac-chrome .title {
  flex: 1; text-align: center; margin-right: 40px;
  font: 500 0.72rem var(--font-mono); color: var(--text-tertiary);
  letter-spacing: 0.02em;
}

.mac-frame img { width: 100%; }

/* Stats */
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px; margin-top: 56px;
}
.stat {
  padding: 18px 16px; text-align: center;
  background: var(--card); border: 1px solid var(--stroke); border-radius: var(--radius-sm);
}
.stat-value {
  font: 600 1.35rem/1 var(--font-mono); letter-spacing: -0.02em;
}
.stat-value.ok { color: var(--ok); }
.stat-value.accent { color: var(--accent-soft); }
.stat-label { margin-top: 6px; font-size: 0.78rem; color: var(--text-tertiary); }

/* ── Sections ── */
section { padding: 88px 0; }
.section-head { margin-bottom: 40px; }
.section-head.center { text-align: center; }
.section-head.center .section-desc { margin-inline: auto; }

.section-label {
  font: 500 0.72rem var(--font-mono);
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--accent-soft); margin-bottom: 10px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3.5vw, 2.35rem);
  font-weight: 700; letter-spacing: -0.025em; line-height: 1.12;
}
.section-desc {
  margin-top: 12px; max-width: 52ch;
  font-size: 1rem; color: var(--text-secondary);
}

/* Bento showcase */
.bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.bento-hero { grid-column: span 8; grid-row: span 2; }
.bento-compact { grid-column: span 4; }
.bento-settings { grid-column: span 4; }
.bento-gif { grid-column: span 8; }

.bento-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
  background: var(--card);
  transition: border-color 0.25s;
}
.bento-card:hover { border-color: rgba(94, 92, 230, 0.28); }

.bento-card .label {
  position: absolute;
  left: 16px;
  top: 14px;
  z-index: 2;
  padding: 5px 10px;
  border-radius: 999px;
  font: 500 0.72rem var(--font-mono);
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.bento-card img {
  width: 100%;
  height: auto;
  display: block;
}

.bento-hero img,
.bento-gif .gif-wrap img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: top center;
}

.bento-compact img,
.bento-settings img {
  aspect-ratio: 16 / 10;
  object-fit: contain;
  object-position: top center;
  background: #0a0a0e;
  padding: 8px 8px 0;
}

.bento-card .caption {
  padding: 16px 18px 18px;
  border-top: 1px solid var(--stroke);
  background: linear-gradient(180deg, rgba(22, 22, 29, 0.2), var(--card));
}
.bento-card .caption h3 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 600;
}
.bento-card .caption p {
  margin-top: 4px;
  font-size: 0.86rem;
  color: var(--text-secondary);
}

html[lang="en"] .bento-card .caption h3[data-lang="en"],
html[lang="zh"] .bento-card .caption h3[data-lang="zh"],
html[lang="en"] .bento-card .caption p[data-lang="en"],
html[lang="zh"] .bento-card .caption p[data-lang="zh"],
html[lang="en"] .feature-card h3[data-lang="en"],
html[lang="zh"] .feature-card h3[data-lang="zh"],
html[lang="en"] .feature-card p[data-lang="en"],
html[lang="zh"] .feature-card p[data-lang="zh"],
html[lang="en"] .install-step h3[data-lang="en"],
html[lang="zh"] .install-step h3[data-lang="zh"],
html[lang="en"] .install-step p[data-lang="en"],
html[lang="zh"] .install-step p[data-lang="zh"],
html[lang="en"] .install-note p[data-lang="en"],
html[lang="zh"] .install-note p[data-lang="zh"],
html[lang="en"] .cta-box h2[data-lang="en"],
html[lang="zh"] .cta-box h2[data-lang="zh"],
html[lang="en"] .cta-box p[data-lang="en"],
html[lang="zh"] .cta-box p[data-lang="zh"],
html[lang="en"] .stat-label[data-lang="en"],
html[lang="zh"] .stat-label[data-lang="zh"],
html[lang="en"] .footer-links a[data-lang="en"],
html[lang="zh"] .footer-links a[data-lang="zh"] { display: block !important; }

.bento-gif .gif-wrap {
  padding: 12px;
  background: #000;
}
.bento-gif img { border-radius: 10px; }

/* Feature cards */
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
}
.feature-card {
  padding: 24px; border-radius: var(--radius);
  border: 1px solid var(--stroke); background: var(--card);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.feature-card:hover {
  background: var(--card-hover);
  border-color: rgba(94, 92, 230, 0.22);
  transform: translateY(-2px);
}
.feature-card .icon {
  width: 40px; height: 40px; border-radius: 11px;
  display: grid; place-items: center; font-size: 1.2rem; margin-bottom: 14px;
}
.feature-card .icon.i1 { background: rgba(94,92,230,0.16); }
.feature-card .icon.i2 { background: rgba(191,90,242,0.16); }
.feature-card .icon.i3 { background: rgba(10,132,255,0.16); }
.feature-card h3 {
  font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; margin-bottom: 6px;
}
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); }

/* Split */
.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.split-list { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
.split-list li {
  display: flex; gap: 12px; align-items: flex-start;
  font-size: 0.92rem; color: var(--text-secondary);
}
.split-list .check {
  flex-shrink: 0; width: 20px; height: 20px; margin-top: 1px;
  border-radius: 6px; background: rgba(50,215,75,0.12); color: var(--ok);
  display: grid; place-items: center; font-size: 0.7rem;
}

/* Install */
.install-steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; counter-reset: step; }
.install-step {
  padding: 22px; border-radius: var(--radius);
  border: 1px solid var(--stroke); background: var(--card);
}
.install-step::before {
  content: counter(step);
  counter-increment: step;
  display: inline-grid; place-items: center;
  width: 26px; height: 26px; margin-bottom: 12px;
  border-radius: 8px; font: 600 0.78rem var(--font-mono);
  color: var(--accent-soft); background: rgba(94,92,230,0.14);
}
.install-step h3 { font-size: 0.98rem; font-weight: 600; margin-bottom: 6px; }
.install-step p { font-size: 0.86rem; color: var(--text-secondary); }

.install-note {
  margin-top: 18px; padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,159,10,0.22);
  background: rgba(255,159,10,0.07);
  font-size: 0.86rem; color: var(--text-secondary);
}
.install-note code {
  font: 0.8rem var(--font-mono);
  padding: 2px 7px; border-radius: 5px;
  background: rgba(0,0,0,0.35); color: #ffb340;
}

/* CTA */
.cta-section { padding-bottom: 100px; }
.cta-box {
  text-align: center; padding: 56px 32px;
  border-radius: 22px;
  border: 1px solid rgba(94,92,230,0.22);
  background: linear-gradient(160deg, rgba(94,92,230,0.14), rgba(16,16,21,0.9) 45%);
  box-shadow: 0 0 80px -30px var(--accent-glow);
}
.cta-box h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700; letter-spacing: -0.02em;
}
.cta-box p { margin: 10px 0 26px; color: var(--text-secondary); }
.cta-buttons { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }

/* Footer */
.footer {
  padding: 36px 0; border-top: 1px solid var(--stroke); text-align: center;
}
.footer-links {
  display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; margin-bottom: 12px;
}
.footer-links a { font-size: 0.86rem; color: var(--text-secondary); }
.footer-links a:hover { color: var(--text); }
.footer p { font-size: 0.82rem; color: var(--text-tertiary); }

/* i18n */
[data-lang] { display: none !important; }
html[lang="en"] [data-lang="en"],
html[lang="zh"] [data-lang="zh"] { display: block !important; }
html[lang="en"] .nav-links [data-lang="en"],
html[lang="zh"] .nav-links [data-lang="zh"] { display: list-item !important; }
html[lang="en"] .hero h1 [data-lang="en"],
html[lang="zh"] .hero h1 [data-lang="zh"] { display: inline !important; }
html[lang="en"] .hero-meta [data-lang="en"],
html[lang="zh"] .hero-meta [data-lang="zh"] { display: flex !important; }
html[lang="en"] .hero-cta [data-lang="en"],
html[lang="zh"] .hero-cta [data-lang="zh"],
html[lang="en"] .nav-actions [data-lang="en"],
html[lang="zh"] .nav-actions [data-lang="zh"],
html[lang="en"] .cta-buttons [data-lang="en"],
html[lang="zh"] .cta-buttons [data-lang="zh"] { display: inline-flex !important; }
html[lang="en"] .hero-badge [data-lang="en"],
html[lang="zh"] .hero-badge [data-lang="zh"] { display: inline !important; }
html[lang="en"] .split-list [data-lang="en"],
html[lang="zh"] .split-list [data-lang="zh"] { display: flex !important; }
html[lang="en"] .bento-card .label [data-lang="en"],
html[lang="zh"] .bento-card .label [data-lang="zh"] { display: inline !important; }

.nav-toggle {
  display: none; background: none; border: none; color: var(--text); cursor: pointer;
}

@media (max-width: 960px) {
  .hero-grid, .split { grid-template-columns: 1fr; gap: 32px; }
  .hero-copy { max-width: none; text-align: center; }
  .hero-sub { margin-inline: auto; }
  .hero-cta, .hero-meta { justify-content: center; }
  .stats-row, .features-grid, .install-steps { grid-template-columns: 1fr 1fr; }
  .bento-hero, .bento-compact, .bento-settings, .bento-gif { grid-column: span 12; }
  .nav-links {
    display: none; position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; padding: 14px;
    background: var(--surface-2); border-bottom: 1px solid var(--stroke);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .nav-actions .btn-sm[data-download] { display: none !important; }
}

@media (max-width: 560px) {
  .stats-row, .features-grid, .install-steps { grid-template-columns: 1fr; }
  .nav-actions .btn-ghost { display: none !important; }
  .container { width: min(100% - 28px, var(--max-w)); }
}