/* Ring0 / Zero Landing Page — Light Premium Theme (Apple + Anthropic) */

/* ─── FONTS ────────────────────────────────────────────────────────────── */
/* Inter is loaded in the layout head */

/* ─── DESIGN TOKENS ────────────────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg:        #ffffff;
  --bg-2:      #f8f7f4;
  --bg-3:      #f2f0ec;
  --bg-4:      #eceae5;
  --surface:   #ffffff;

  /* Borders */
  --border:    #e8e5df;
  --border-2:  #d8d4cc;
  --border-3:  #c8c4ba;

  /* Text */
  --text:      #1a1814;
  --text-2:    #3d3a34;
  --text-3:    #706b62;
  --text-4:    #a09a90;

  /* Accent — warm terracotta (Anthropic-esque) */
  --accent:       #c06035;
  --accent-light: #e8824a;
  --accent-dim:   rgba(192, 96, 53, 0.08);
  --accent-mid:   rgba(192, 96, 53, 0.15);

  /* Gradient */
  --grad-hero: linear-gradient(160deg, #fff8f3 0%, #fff 50%, #f4f8ff 100%);
  --grad-subtle: linear-gradient(180deg, #fff 0%, #f8f7f4 100%);

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 12px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.05);

  /* Typography scale */
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SF Mono', ui-monospace, monospace;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── SHARED UTILITIES ───────────────────────────────────────────────────── */
.section-label {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ─── NAVIGATION ─────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.02em;
}

.nav-logo-mark {
  width: 26px;
  height: 26px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--text); }

.nav-cta {
  padding: 7px 16px;
  background: var(--text);
  color: #fff !important;
  border-radius: 8px;
  font-size: 13px !important;
  font-weight: 600 !important;
  letter-spacing: -0.01em;
  transition: background 0.15s, transform 0.1s !important;
}

.nav-cta:hover {
  background: var(--accent) !important;
  color: #fff !important;
}

/* ─── HERO ───────────────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 28px 80px;
  background: var(--grad-hero);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(192,96,53,0.05) 0%, transparent 65%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(100,140,255,0.04) 0%, transparent 65%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

/* Split-screen hero layout */
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-text {
  display: flex;
  flex-direction: column;
}

/* Hero image */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image-wrap {
  position: relative;
  width: 100%;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.10), 0 8px 24px rgba(0,0,0,0.06);
  border: 1px solid var(--border);
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 20px;
}

.hero-img-badge {
  position: absolute;
  bottom: 16px;
  left: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  border: 1px solid var(--border);
}

.hero-img-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}

.hero-eyebrow-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.hero-headline {
  font-size: clamp(40px, 7vw, 80px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.03;
  color: var(--text);
  max-width: 800px;
  margin-bottom: 28px;
}

.hero-headline em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 18px;
  font-weight: 400;
  color: var(--text-2);
  line-height: 1.65;
  max-width: 560px;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  background: var(--text);
  color: #fff;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: border-color 0.15s, color 0.15s, transform 0.1s, background 0.15s;
}

.btn-secondary:hover {
  border-color: var(--border-3);
  color: var(--text);
  background: var(--bg-2);
  transform: translateY(-1px);
}

.hero-stats {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  max-width: 640px;
}

.hero-stat {
  flex: 1;
  padding: 22px 24px;
  position: relative;
}

.hero-stat + .hero-stat {
  border-left: 1px solid var(--border);
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--text);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-value sup {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.02em;
  vertical-align: top;
  margin-top: 6px;
  display: inline-block;
}

.stat-unit {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 11px;
  color: var(--text-4);
  line-height: 1.45;
  letter-spacing: -0.01em;
}

/* Hero stats — smaller max-width now that it's one column of two */
.hero-stats { max-width: 100%; }

/* ─── SECTION: THE PROBLEM ───────────────────────────────────────────────── */
.problem {
  padding: 120px 28px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.problem-inner { max-width: 1080px; margin: 0 auto; }

.problem-headline {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text);
  max-width: 660px;
  margin-bottom: 24px;
}

.problem-body {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.75;
  max-width: 560px;
  margin-bottom: 64px;
}

.problem-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 40px;
  align-items: start;
}

.compare-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 14px;
}

.compare-diagram { display: flex; flex-direction: column; gap: 3px; }

.layer {
  background: var(--bg-3);
  border: 1px solid var(--border-2);
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: -0.01em;
}

.layer-kernel {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
}

.compare-cost {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-4);
  margin-top: 10px;
  letter-spacing: -0.01em;
}

.compare-cost-good { color: var(--accent); }

.compare-divider {
  display: flex;
  align-items: center;
  padding-top: 50px;
  color: var(--accent);
}

/* ─── SECTION: ARCHITECTURE ──────────────────────────────────────────────── */
.architecture {
  padding: 120px 28px;
  background: var(--bg);
}

.architecture-inner { max-width: 1080px; margin: 0 auto; }

.arch-header { margin-bottom: 52px; }

.arch-headline {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text);
  max-width: 640px;
}

.arch-diagram {
  margin-bottom: 36px;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-2);
  padding: 4px;
  box-shadow: var(--shadow-sm);
}

.arch-svg { width: 100%; height: auto; }

.arch-callouts {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.callout {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex: 1;
  min-width: 200px;
}

.callout-icon { flex-shrink: 0; margin-top: 2px; }

.callout-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  line-height: 1.55;
  letter-spacing: -0.01em;
}

/* ─── SECTION: BENCHMARK ─────────────────────────────────────────────────── */
.benchmark {
  padding: 120px 28px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.benchmark-inner { max-width: 1080px; margin: 0 auto; }

.benchmark-headline {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 48px;
}

.benchmark-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 44px 48px;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  box-shadow: var(--shadow-md);
}

.benchmark-system { flex-shrink: 0; }

.system-label {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 6px;
}

.system-specs {
  font-size: 12px;
  color: var(--text-4);
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

.benchmark-result { text-align: right; }

.big-number {
  font-size: 72px;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--text);
  line-height: 1;
}

.big-unit {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: -0.02em;
  margin-left: 4px;
}

.big-context {
  font-size: 12px;
  color: var(--text-4);
  margin-top: 10px;
  font-family: var(--font-mono);
}

.benchmark-table {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.bench-header {
  display: grid;
  grid-template-columns: 2.5fr 1.5fr 1.5fr 1fr;
  gap: 12px;
  padding: 13px 20px;
  background: var(--bg-3);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-4);
  border-bottom: 1px solid var(--border);
}

.bench-row {
  display: grid;
  grid-template-columns: 2.5fr 1.5fr 1.5fr 1fr;
  gap: 12px;
  padding: 15px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
  align-items: center;
  letter-spacing: -0.01em;
}

.bench-row:last-child { border-bottom: none; }
.bench-row-prime { background: var(--accent-dim); }
.bench-row-prime .br-system strong { color: var(--text); font-weight: 700; }
.result-badge { color: var(--accent); font-weight: 700; }

.benchmark-note {
  margin-top: 20px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-4);
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-3);
  line-height: 1.6;
  letter-spacing: -0.01em;
}

/* ─── SECTION: LICENSING / PRODUCT FAMILY ────────────────────────────────── */
.licensing {
  padding: 120px 28px;
  background: var(--bg);
}

.licensing-inner { max-width: 1080px; margin: 0 auto; }

.licensing-headline {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 16px;
}

.licensing-sub {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

/* Product cards grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 56px;
}

.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.product-card:hover {
  border-color: var(--border-3);
  box-shadow: var(--shadow-md);
}

.product-card-accent {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.product-card-accent:hover {
  border-color: var(--accent-light);
}

.pc-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--bg-3);
  color: var(--text-4);
  width: fit-content;
}

.pc-badge-free { background: rgba(52,181,107,0.1); color: #1a8a4a; }
.pc-badge-paid { background: var(--accent-dim); color: var(--accent); }
.pc-badge-enterprise { background: rgba(80,100,200,0.08); color: #4060cc; }

.pc-name {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.pc-desc {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.55;
  letter-spacing: -0.01em;
  flex: 1;
}

.pc-price {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-4);
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.product-card-accent .pc-price {
  border-top-color: rgba(192,96,53,0.2);
  color: var(--accent);
}

/* Licensing comparison table */
.lp-table-wrap {
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.lp-header {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
}

.lp-col { padding: 22px 24px; }

.lp-col-free,
.lp-col-paid { border-left: 1px solid var(--border); }

.lp-col-paid {
  background: var(--accent-dim);
  border-left-color: rgba(192,96,53,0.2);
}

.lp-edition-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.lp-col-paid .lp-edition-name { color: var(--accent); }

.lp-edition-price {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text);
  margin-bottom: 4px;
}

.lp-col-free .lp-edition-price {
  font-size: 16px;
  color: var(--text-3);
}

.lp-col-paid .lp-edition-price { color: var(--accent); }

.lp-edition-tag {
  font-size: 11px;
  color: var(--text-4);
  letter-spacing: -0.01em;
}

.lp-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.lp-row:last-child { border-bottom: none; }
.lp-row:nth-child(even) { background: var(--bg-2); }

.lp-feature {
  padding: 14px 24px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
}

.lp-val {
  padding: 14px 24px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
  border-left: 1px solid var(--border);
  display: flex;
  align-items: center;
  letter-spacing: -0.01em;
}

.lp-val-paid {
  color: var(--text-2);
  background: rgba(192,96,53,0.03);
  border-left-color: rgba(192,96,53,0.15);
}

.lp-check { color: #1a8a4a; font-weight: 700; }
.lp-cross { color: var(--text-4); }

.lp-footnote {
  margin-top: 24px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  max-width: 680px;
  line-height: 1.65;
  letter-spacing: -0.01em;
  padding: 16px 20px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.lf-icon { flex-shrink: 0; margin-top: 2px; color: var(--accent); }
.lp-footnote strong { color: var(--text); font-weight: 700; }

/* ─── SECTION: VISION ─────────────────────────────────────────────────────── */
.vision {
  padding: 120px 28px;
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.vision-inner { max-width: 1080px; margin: 0 auto; }

.vision-quote {
  text-align: center;
  margin-bottom: 72px;
  padding: 64px 24px;
}

.vision-quote blockquote {
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.3;
  color: var(--text);
}

.vision-quote blockquote em {
  font-style: normal;
  color: var(--accent);
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.vision-block {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}

.vb-stage {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.vb-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.35;
}

.vb-desc {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.65;
  letter-spacing: -0.01em;
}

/* ─── SECTION: OPEN SOURCE ───────────────────────────────────────────────── */
.open-section {
  padding: 120px 28px;
  background: var(--bg);
}

.open-inner { max-width: 1080px; margin: 0 auto; }

.open-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.open-headline {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text);
}

.open-body {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 32px;
  letter-spacing: -0.01em;
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  background: var(--text);
  color: #fff;
  border-radius: 9px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: background 0.15s, transform 0.1s;
  box-shadow: var(--shadow-sm);
}

.github-link:hover {
  background: #2d2a26;
  transform: translateY(-1px);
}

.editions-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 16px;
}

.edition-list { display: flex; flex-direction: column; gap: 2px; }

.edition-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 13px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 9px;
  align-items: center;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.edition-item:hover {
  border-color: var(--border-3);
  box-shadow: var(--shadow-sm);
}

.edition-item-accent {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.edition-name {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.edition-price {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  text-align: right;
  white-space: nowrap;
}

.edition-desc {
  font-size: 11px;
  color: var(--text-4);
  grid-column: 1;
  margin-top: -4px;
  letter-spacing: -0.01em;
}

/* ─── SECTION: CLOSING ───────────────────────────────────────────────────── */
.closing {
  padding: 140px 28px;
  text-align: center;
  background: var(--text);
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(192,96,53,0.2) 0%, transparent 65%);
  pointer-events: none;
}

.closing-inner {
  max-width: 680px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.closing-logo {
  margin: 0 auto 36px;
  opacity: 0.6;
}

.closing-headline {
  font-size: clamp(28px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 24px;
  color: #fff;
}

.closing-sub {
  font-size: 16px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.closing-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, transform 0.1s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
}

.closing-cta:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-1px);
}

.closing-stage {
  margin-top: 40px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
}

/* ─── FOOTER ─────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 28px;
  background: var(--bg);
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.footer-tagline {
  font-size: 12px;
  color: var(--text-4);
  max-width: 260px;
  line-height: 1.55;
  letter-spacing: -0.01em;
}

.footer-ticker {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-4);
  padding: 3px 7px;
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-top: 6px;
  width: fit-content;
}

.footer-nav {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-nav-group { display: flex; flex-direction: column; gap: 10px; }

.footer-nav-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 2px;
}

.footer-nav-group a {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: color 0.15s;
}

.footer-nav-group a:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  gap: 20px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 12px;
  color: var(--text-4);
  letter-spacing: -0.01em;
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-legal a {
  font-size: 12px;
  color: var(--text-4);
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: color 0.15s;
}

.footer-legal a:hover { color: var(--text-2); }

/* ─── RESPONSIVE ────────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .hero-content { gap: 40px; }
  .hero { padding: 100px 20px 80px; }
}

@media (max-width: 1000px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .vision-grid { grid-template-columns: repeat(2, 1fr); }
  .open-grid { grid-template-columns: 1fr; gap: 56px; }
  .benchmark-card { flex-direction: column; align-items: flex-start; }
  .benchmark-result { text-align: left; }
  /* Stack hero on tablet */
  .hero-content { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { order: -1; }
  .hero-image-wrap { max-width: 560px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero { padding: 88px 20px 60px; }
  .hero-headline { font-size: clamp(36px, 9vw, 52px); }
  .hero-sub { font-size: 16px; }
  .hero-stats {
    flex-direction: column;
    max-width: 100%;
  }
  .hero-stat + .hero-stat {
    border-left: none;
    border-top: 1px solid var(--border);
  }
  .problem-comparison {
    grid-template-columns: 1fr;
  }
  .compare-divider { display: none; }
  .bench-header, .bench-row {
    grid-template-columns: 2fr 1fr 1fr;
  }
  .bh-mode, .br-mode { display: none; }
  .lp-header, .lp-row {
    grid-template-columns: 2fr 1fr;
  }
  .lp-col-paid, .lp-val-paid { display: none; }
  .footer-top { flex-direction: column; }
  .footer-nav { gap: 32px; }
}

@media (max-width: 540px) {
  .product-grid { grid-template-columns: 1fr; }
  .vision-grid { grid-template-columns: 1fr; }
  .arch-callouts { flex-direction: column; gap: 20px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .big-number { font-size: 56px; }
  .bench-header, .bench-row {
    grid-template-columns: 2fr 1fr;
  }
  .bh-result, .br-result { display: none; }
}

/* ═══════════════════════════════════════════════════════════════════════════
   BENCHMARK PAGE (/benchmark)
   Standalone page — reuses design tokens and nav/footer from above.
   ══════════════════════════════════════════════════════════════════════════ */

/* ─── NAV active link ──────────────────────────────────────────────────── */
.nav-link-active {
  color: var(--text) !important;
  font-weight: 600 !important;
}

/* ─── HERO ──────────────────────────────────────────────────────────────── */
.bp-hero {
  padding: 120px 28px 80px;
  background: var(--grad-hero);
  border-bottom: 1px solid var(--border);
}

.bp-hero-inner {
  max-width: 1080px;
  margin: 0 auto;
}

.bp-headline {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1.05;
  color: var(--text);
  margin-bottom: 24px;
}

.bp-headline em {
  font-style: normal;
  color: var(--accent);
}

.bp-sub {
  font-size: 18px;
  font-weight: 400;
  color: var(--text-2);
  line-height: 1.65;
  max-width: 600px;
  margin-bottom: 56px;
  letter-spacing: -0.01em;
}

.bp-hero-stat-row {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.bp-stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 36px;
  box-shadow: var(--shadow-md);
  min-width: 220px;
}

.bp-stat-card.bp-stat-prime {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.bp-stat-num {
  font-size: 64px;
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--text);
}

.bp-stat-num-muted { color: var(--text-3); }

.bp-stat-unit {
  font-size: 20px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}

.bp-stat-unit-muted { color: var(--text-4); }

.bp-stat-label {
  font-size: 12px;
  color: var(--text-4);
  font-family: var(--font-mono);
  line-height: 1.55;
}

.bp-stat-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--accent);
}

.bp-stat-lead {
  font-size: 16px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.04em;
  text-align: center;
  line-height: 1.2;
}

/* ─── SHARED SECTION WRAPPER ──────────────────────────────────────────── */
.bp-section {
  padding: 100px 28px;
  background: var(--bg);
}

.bp-section-alt {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.bp-inner {
  max-width: 1080px;
  margin: 0 auto;
}

.bp-section-headline {
  font-size: clamp(24px, 3.5vw, 38px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 16px;
}

.bp-section-sub {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.7;
  max-width: 640px;
  margin-bottom: 44px;
  letter-spacing: -0.01em;
}

/* ─── COMPARISON TABLE ────────────────────────────────────────────────── */
.bp-table-wrap {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}

.bp-table-head {
  display: grid;
  grid-template-columns: 2.5fr 1.5fr 1.2fr 0.8fr;
  gap: 12px;
  padding: 13px 20px;
  background: var(--bg-3);
  border-bottom: 1px solid var(--border);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-4);
}

.bp-table-row {
  display: grid;
  grid-template-columns: 2.5fr 1.5fr 1.2fr 0.8fr;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.bp-table-row:last-child { border-bottom: none; }

.bp-table-row-prime {
  background: var(--accent-dim);
}

/* Slightly muted rows for GPU context entries */
.bp-table-row-context {
  opacity: 0.75;
}

.bpt-col-system {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.bpt-col-model,
.bpt-col-mode {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: -0.01em;
}

.bpt-col-result {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: -0.02em;
  font-family: var(--font-mono);
}

.bpt-result-prime {
  font-size: 22px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.04em;
  font-family: var(--font-mono);
}

.bpt-runtime {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-4);
  font-family: var(--font-mono);
}

.bpt-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 5px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--bg-3);
  color: var(--text-4);
  border: 1px solid var(--border);
}

.bpt-badge-ring0 {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: rgba(192,96,53,0.25);
}

.bpt-badge-gpu {
  background: rgba(80,100,200,0.07);
  color: #4060cc;
  border-color: rgba(80,100,200,0.15);
}

.bp-table-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-4);
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg-3);
  line-height: 1.6;
  letter-spacing: -0.01em;
}

.bp-table-note strong { color: var(--text-3); }

/* ─── WHY RING-0 WINS ────────────────────────────────────────────────── */
.bp-why-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 40px;
}

.bp-why-card {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 28px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.bp-why-card:hover {
  border-color: var(--border-3);
  box-shadow: var(--shadow-md);
}

.bp-why-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--accent-dim);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(192,96,53,0.2);
}

.bp-why-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 8px;
}

.bp-why-body {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
  letter-spacing: -0.01em;
}

.bp-why-body em {
  font-style: normal;
  color: var(--accent);
  font-weight: 600;
}

.bp-arch-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.01em;
  transition: opacity 0.15s;
}

.bp-arch-link:hover { opacity: 0.75; }

/* ─── METHODOLOGY GRID ────────────────────────────────────────────────── */
.bp-method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--border);
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
}

.bp-method-item {
  background: var(--surface);
  padding: 24px 26px;
}

.bp-method-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.bp-method-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.bp-method-detail {
  font-size: 12px;
  color: var(--text-4);
  line-height: 1.6;
  letter-spacing: -0.01em;
}

.bp-method-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  padding: 16px 20px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg-2);
  line-height: 1.65;
  letter-spacing: -0.01em;
}

.bp-method-note a {
  color: var(--accent);
  text-decoration: none;
}

.bp-method-note a:hover { text-decoration: underline; }

/* ─── BENCHMARK PRODUCT CARDS ────────────────────────────────────────── */
.bp-product-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.bp-product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-md);
}

.bp-product-card-paid {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.bp-pc-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 5px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--bg-3);
  color: var(--text-4);
  width: fit-content;
}

.bp-pc-badge-free { background: rgba(52,181,107,0.1); color: #1a8a4a; }
.bp-pc-badge-paid { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(192,96,53,0.2); }

.bp-pc-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
  margin: 0;
}

.bp-pc-desc {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
  letter-spacing: -0.01em;
}

.bp-pc-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.bp-pc-features li {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.bp-pc-features li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.bp-pc-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
  box-shadow: var(--shadow-sm);
  margin-top: auto;
  width: fit-content;
}

.bp-pc-cta-primary {
  background: var(--text);
  color: #fff;
}

.bp-pc-cta-primary:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

.bp-pc-cta-secondary {
  background: var(--accent);
  color: #fff;
}

.bp-pc-cta-secondary:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
}

/* ─── CLOSING CTA ─────────────────────────────────────────────────────── */
.bp-closing {
  padding: 120px 28px;
  text-align: center;
  background: var(--text);
  position: relative;
  overflow: hidden;
}

.bp-closing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(192,96,53,0.2) 0%, transparent 65%);
  pointer-events: none;
}

.bp-closing-inner {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.bp-closing-headline {
  font-size: clamp(26px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 20px;
}

.bp-closing-sub {
  font-size: 16px;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
  margin-bottom: 44px;
  letter-spacing: -0.01em;
}

.bp-closing-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.bp-closing-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: rgba(255,255,255,0.7);
  transition: border-color 0.15s, color 0.15s, transform 0.1s;
}

.bp-closing-secondary:hover {
  border-color: rgba(255,255,255,0.4);
  color: #fff;
  transform: translateY(-1px);
}

/* ─── BENCHMARK PAGE RESPONSIVE ───────────────────────────────────────── */
@media (max-width: 960px) {
  .bp-product-cards { grid-template-columns: 1fr; }
  .bp-method-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .bp-hero { padding: 100px 20px 64px; }
  .bp-section { padding: 72px 20px; }
  .bp-hero-stat-row { gap: 20px; }
  .bp-stat-divider { display: none; }
  .bp-method-grid { grid-template-columns: 1fr; }
  .bp-why-card { flex-direction: column; gap: 16px; padding: 22px 24px; }
  .bp-table-head, .bp-table-row {
    grid-template-columns: 2fr 1fr 0.8fr;
  }
  .bpt-col-mode { display: none; }
}

@media (max-width: 540px) {
  .bp-stat-card { min-width: unset; width: 100%; }
  .bp-table-head, .bp-table-row {
    grid-template-columns: 2fr 1fr;
  }
  .bpt-col-model { display: none; }
  .bp-closing-actions { flex-direction: column; }
}