:root {
  color-scheme: dark;
  --bg: #070911;
  --text: #f5f7fb;
  --muted: #8b94ab;
  --line: #e5eaff22;
  --cyan: #a0e7e9;
  --accent: #74f2dc;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  width: 100%;
  min-height: 100%;
  background: var(--bg);
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid #74f2dc;
  outline-offset: 4px;
}

/* ---------- Fixed Full-Viewport 3D Galaxy Backdrop ---------- */
.sky-backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 48%, #162e4652, transparent 48%),
    radial-gradient(ellipse at 65% 88%, #36295238, transparent 55%),
    #070911;
}

.ambient {
  position: absolute;
  pointer-events: none;
  inset: 8% 16% 0;
  background: radial-gradient(ellipse at 50% 50%, #4ac6d422, transparent 58%);
  filter: blur(54px);
}

#galaxy-scene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background:
    linear-gradient(180deg, #07091158, transparent 22%, transparent 78%, #07091178),
    radial-gradient(ellipse at 50% 50%, transparent 28%, #0709114c 96%);
}

.grain {
  position: absolute;
  inset: 0;
  opacity: 0.032;
  pointer-events: none;
  z-index: 2;
  background-image: url('data:image/svg+xml,%3Csvg viewBox=%220 0 180 180%22 xmlns=%22http://www.w3.org/2000/svg%22%3E%3Cfilter id=%22n%22%3E%3CfeTurbulence type=%22fractalNoise%22 baseFrequency=%22.85%22 numOctaves=%223%22 stitchTiles=%22stitch%22/%3E%3C/filter%3E%3Cpath fill=%22%23fff%22 filter=%22url(%23n)%22 opacity=%22.55%22 d=%22M0 0h180v180H0z%22/%3E%3C/svg%3E');
}

/* ---------- Scrollable Foreground Page ---------- */
.page {
  position: relative;
  z-index: 2;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

/* ---------- Sticky Topbar ---------- */
header.topbar {
  height: 96px;
  padding: 0 5%;
  position: sticky;
  top: 0;
  z-index: 24;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition:
    height 0.24s ease,
    background 0.24s ease,
    border-color 0.24s ease,
    box-shadow 0.24s ease;
}

header.topbar.scrolled {
  height: 74px;
  background: rgba(7, 10, 20, 0.8);
  backdrop-filter: blur(20px) saturate(145%);
  -webkit-backdrop-filter: blur(20px) saturate(145%);
  border-bottom-color: rgba(164, 214, 240, 0.14);
  box-shadow: 0 12px 36px rgba(2, 6, 16, 0.45);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand .brand-mark {
  width: 40px;
  height: 40px;
  display: block;
  flex-shrink: 0;
  filter: drop-shadow(0 0 18px rgba(126, 247, 229, 0.22));
}

.brand-name {
  font-size: 21px;
  font-weight: 650;
  letter-spacing: -0.5px;
  white-space: nowrap;
}

.brand-tag {
  color: #8b95a9;
  border-left: 1px solid #a3afc333;
  padding-left: 14px;
  margin-left: 2px;
  font-size: 10px;
  letter-spacing: 2px;
  white-space: nowrap;
}

.nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav-plaza {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 560;
  color: #e9fefa;
  background: linear-gradient(120deg, rgba(116, 242, 220, 0.16), rgba(138, 198, 255, 0.12));
  border: 1px solid rgba(116, 242, 220, 0.38);
  box-shadow: 0 0 22px rgba(116, 242, 220, 0.14);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s, background 0.2s;
  white-space: nowrap;
}

.nav-plaza:hover {
  transform: translateY(-1px);
  border-color: rgba(116, 242, 220, 0.72);
  background: linear-gradient(120deg, rgba(116, 242, 220, 0.24), rgba(138, 198, 255, 0.18));
  box-shadow: 0 0 28px rgba(116, 242, 220, 0.28);
}

.plaza-spark {
  color: #74f2dc;
  font-size: 12px;
  animation: sparkPulse 2.6s ease-in-out infinite;
}

.plaza-badge {
  font-style: normal;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(116, 242, 220, 0.18);
  color: #9df9e9;
  font-variant-numeric: tabular-nums;
}

.group {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 0;
  background: none;
  color: #8c97ab;
  font-size: 13px;
  padding: 8px 0;
  transition: color 0.2s;
  white-space: nowrap;
}

.group:hover {
  color: #dce8f8;
}

.group span {
  color: #c2cde0;
  letter-spacing: 0.5px;
  font-variant-numeric: tabular-nums;
}

.nav-auth {
  font-size: 13px;
  color: #a9b7cd;
  padding: 8px 4px;
  transition: color 0.2s;
  white-space: nowrap;
}

.nav-auth:hover {
  color: #f5f7fb;
}

.nav-auth-wallet {
  color: #98efe1;
}

.nav-auth-wallet:hover {
  color: #c6fff4;
}

.console {
  font-size: 13px;
  border: 1px solid #e4ebff2e;
  border-radius: 6px;
  padding: 10px 15px;
  display: flex;
  gap: 14px;
  align-items: center;
  background: rgba(12, 20, 38, 0.42);
  transition: 0.2s;
  white-space: nowrap;
}

.console:hover {
  background: #a7dfe718;
  border-color: #bde8f375;
}

.arrow {
  font-size: 16px;
  font-weight: 400;
}

/* ---------- Hero Screen ---------- */
.hero-screen {
  position: relative;
  min-height: calc(100svh - 96px);
  padding: 24px 20px 88px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.hero {
  position: relative;
  z-index: 3;
  width: min(100%, 1250px);
  text-align: center;
  pointer-events: none;
}

.eyebrow {
  margin: 0 0 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #b8d3de;
  font-size: 14px;
  letter-spacing: 4.5px;
}

.eyebrow::before {
  content: "";
  height: 6px;
  width: 6px;
  box-shadow: 0 0 14px #74f2dc;
  background: #74f2dc;
  border-radius: 50%;
}

.headline-stage {
  position: relative;
  height: 156px;
  width: min(100%, 1250px);
  margin: auto;
  display: grid;
  place-items: center;
}

.headline {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin: 0;
  font-size: clamp(44px, 5.3vw, 78px);
  font-weight: 580;
  line-height: 1.18;
  letter-spacing: -2px;
  color: #f2f6fc;
  opacity: 0;
  transform: translateY(14px);
  filter: blur(4px);
  transition: opacity 280ms ease, transform 280ms ease, filter 280ms ease;
  text-shadow: 0 3px 30px #04070fdd, 0 1px 70px #04070faa;
}

.headline span {
  display: block;
}

.headline .accent {
  color: #74f2dc;
  background: linear-gradient(120deg, #f7dfb2 0%, #74f2dc 52%, #8ac6ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-style: normal;
  text-shadow: none;
  filter: drop-shadow(0 0 24px rgba(116, 242, 220, 0.24));
}

.headline.active {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.headline.out {
  opacity: 0;
  transform: translateY(-14px);
  filter: blur(4px);
}

.headline.short,
.headline.quality {
  --feature-size: clamp(64px, 7.6vw, 112px);
}

.headline.short {
  font-size: var(--feature-size);
  letter-spacing: 9px;
  padding-left: 9px;
}

.headline.quality {
  letter-spacing: -2px;
  flex-direction: row;
  white-space: nowrap;
  column-gap: 0.32em;
}

.headline.direct,
.headline.quality {
  font-size: clamp(43px, 5vw, 70px);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
  pointer-events: auto;
}

.cta {
  height: 48px;
  min-width: 158px;
  border-radius: 7px;
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 550;
  transition: transform 0.2s, background 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.primary {
  background: linear-gradient(110deg, #edf9fa, #dceaf2);
  border: 1px solid #f1ffff;
  color: #14232e;
  box-shadow: 0 0 26px #a8e6ed22;
}

.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 36px #a8e6ed42;
}

.plaza-cta {
  background: linear-gradient(120deg, rgba(16, 44, 58, 0.78), rgba(20, 38, 66, 0.78));
  border: 1px solid rgba(116, 242, 220, 0.52);
  color: #e8fffa;
  backdrop-filter: blur(14px);
  box-shadow: 0 0 28px rgba(116, 242, 220, 0.16);
}

.plaza-cta .arrow {
  color: #74f2dc;
}

.plaza-cta:hover {
  transform: translateY(-2px);
  background: linear-gradient(120deg, rgba(22, 60, 76, 0.88), rgba(28, 50, 84, 0.88));
  border-color: rgba(116, 242, 220, 0.85);
  box-shadow: 0 0 36px rgba(116, 242, 220, 0.3);
}

.secondary {
  background: rgba(10, 19, 34, 0.52);
  border: 1px solid #dceaff3b;
  color: #e6ecf8;
  backdrop-filter: blur(12px);
}

.secondary:hover {
  background: rgba(23, 38, 56, 0.76);
  border-color: #a0e7e975;
  transform: translateY(-2px);
}

.models {
  margin: 26px 0 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 22px;
  color: #a3b1c8;
  font-size: 12px;
  letter-spacing: 0.3px;
  pointer-events: auto;
}

.models .model-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  color: inherit;
  padding: 5px 11px;
  transition: color 0.2s, transform 0.2s, border-color 0.2s, background 0.2s;
}

.models .model-item:hover {
  color: #f2f8ff;
  border-color: rgba(160, 231, 233, 0.32);
  background: rgba(116, 242, 220, 0.08);
  transform: translateY(-1px);
}

.models .model-icon {
  display: block;
  flex-shrink: 0;
  width: 17px;
  height: 17px;
}

.models .model-icon.openai {
  width: 22px;
  height: 22px;
  margin: -2.5px;
  color: #e4eefb;
}

.models .claude {
  color: #d8a684;
}

.models .grok {
  color: #d6e2f2;
}

.models .gemini {
  color: #a9b6e1;
}

.sequence {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin: 22px 0 0;
  pointer-events: auto;
}

.step {
  padding: 6px 0;
  background: none;
  border: 0;
  width: 22px;
  height: 14px;
  position: relative;
}

.step::after {
  content: "";
  height: 2px;
  background: #6c7c9666;
  position: absolute;
  left: 0;
  right: 0;
  top: 6px;
  border-radius: 2px;
  transition: background 0.2s, box-shadow 0.2s;
}

.step[aria-pressed="true"]::after {
  background: #74f2dc;
  box-shadow: 0 0 10px #74f2dc88;
}

.speed-btn {
  margin-left: 8px;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid rgba(180, 212, 236, 0.22);
  background: rgba(11, 21, 38, 0.48);
  color: #a9bfd4;
  font-size: 11px;
  letter-spacing: 0.4px;
  transition: all 0.2s;
}

.speed-btn:hover {
  color: #ecfbff;
  border-color: rgba(116, 242, 220, 0.48);
}

.speed-btn[aria-pressed="true"] {
  color: #74f2dc;
  border-color: rgba(116, 242, 220, 0.65);
  background: rgba(116, 242, 220, 0.12);
  box-shadow: 0 0 14px rgba(116, 242, 220, 0.2);
}

.sequence .motion {
  border: 1px solid rgba(180, 212, 236, 0.18);
  border-radius: 999px;
  background: rgba(11, 21, 38, 0.42);
  color: #b4cad8;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  opacity: 0.82;
  transition: opacity 0.2s, border-color 0.2s, color 0.2s;
}

.sequence .motion:hover {
  opacity: 1;
  color: #74f2dc;
  border-color: rgba(116, 242, 220, 0.5);
}

.sequence .motion[aria-pressed="true"] {
  color: #f4c67a;
  border-color: rgba(244, 198, 122, 0.45);
}

.axis {
  position: absolute;
  z-index: 2;
  color: #93a6be70;
  font-size: 8.5px;
  letter-spacing: 3px;
  writing-mode: vertical-rl;
  top: 38%;
  left: 4.5%;
  display: flex;
  align-items: center;
  gap: 18px;
  pointer-events: none;
}

.axis::before {
  content: "";
  height: 44px;
  width: 1px;
  background: linear-gradient(transparent, #74f2dc55);
}

.coordinate {
  position: absolute;
  z-index: 2;
  right: 4.5%;
  top: 40%;
  color: #93a6be78;
  font-size: 8.5px;
  letter-spacing: 2px;
  line-height: 2.4;
  text-align: right;
  pointer-events: none;
}

#coord-mode {
  color: #74f2dc99;
}

.horizon {
  position: absolute;
  z-index: 1;
  bottom: 72px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, #9ad8e828, transparent);
  pointer-events: none;
}

.scroll-cue {
  position: absolute;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.6px;
  color: #b7cde0;
  background: rgba(10, 18, 34, 0.48);
  border: 1px solid rgba(168, 214, 240, 0.18);
  backdrop-filter: blur(10px);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  white-space: nowrap;
}

.scroll-cue:hover {
  color: #ecfbff;
  border-color: rgba(116, 242, 220, 0.52);
  background: rgba(16, 30, 52, 0.72);
}

.scroll-cue svg {
  color: #74f2dc;
  animation: cueFloat 2s ease-in-out infinite;
}

@keyframes cueFloat {
  0%,
  100% {
    transform: translateY(-2px);
  }
  50% {
    transform: translateY(3px);
  }
}

@keyframes sparkPulse {
  0%,
  100% {
    opacity: 0.75;
    transform: scale(0.95);
  }
  50% {
    opacity: 1;
    transform: scale(1.16);
  }
}

/* ---------- Theme Toggle ---------- */
.theme-toggle {
  width: 36px;
  height: 36px;
  padding: 0;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border: 1px solid #dceaff2b;
  border-radius: 50%;
  background: #ffffff08;
  color: #bccbdc;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}

.theme-toggle:hover {
  background: #b5d9ec1a;
  border-color: #dceaff55;
}

.theme-toggle svg {
  grid-area: 1 / 1;
  width: 17px;
  height: 17px;
}

.theme-toggle .moon {
  display: none;
}

[data-theme="day"] .theme-toggle .sun {
  display: none;
}

[data-theme="day"] .theme-toggle .moon {
  display: block;
}

/* ---------- Embedded Live Model Plaza (#model-plaza) ---------- */
.plaza-section {
  position: relative;
  z-index: 3;
  padding: 40px 5% 76px;
}

.plaza-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 38px 36px;
  border-radius: 22px;
  background: linear-gradient(165deg, rgba(10, 18, 36, 0.78) 0%, rgba(7, 12, 25, 0.84) 100%);
  border: 1px solid rgba(166, 212, 242, 0.16);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  box-shadow: 0 28px 80px rgba(2, 5, 15, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.plaza-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 26px;
  border-bottom: 1px solid rgba(166, 212, 242, 0.12);
}

.plaza-eyebrow {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.6px;
  color: #74f2dc;
}

.plaza-head h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 640;
  letter-spacing: -0.6px;
  color: #f4f8ff;
}

.plaza-sub {
  margin: 8px 0 0;
  font-size: 14px;
  color: #95a8c3;
  line-height: 1.6;
}

.plaza-head-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.plaza-full-btn,
.plaza-sub-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 560;
  transition: all 0.2s;
  white-space: nowrap;
}

.plaza-full-btn {
  background: linear-gradient(120deg, rgba(116, 242, 220, 0.2), rgba(138, 198, 255, 0.16));
  border: 1px solid rgba(116, 242, 220, 0.45);
  color: #ebfffb;
}

.plaza-full-btn:hover {
  background: linear-gradient(120deg, rgba(116, 242, 220, 0.3), rgba(138, 198, 255, 0.24));
  border-color: rgba(116, 242, 220, 0.8);
  transform: translateY(-1px);
}

.plaza-sub-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(180, 210, 240, 0.2);
  color: #cfe0f5;
}

.plaza-sub-btn:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(180, 210, 240, 0.42);
}

/* Stats Strip */
.plaza-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.stat-card {
  padding: 16px 18px;
  border-radius: 12px;
  background: rgba(15, 27, 50, 0.56);
  border: 1px solid rgba(164, 206, 238, 0.12);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.stat-endpoint {
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.stat-endpoint:hover {
  border-color: rgba(116, 242, 220, 0.48);
  background: rgba(18, 36, 62, 0.76);
  transform: translateY(-1px);
}

.stat-label {
  font-size: 11.5px;
  color: #8ea2bf;
}

.stat-val {
  font-size: 20px;
  font-weight: 650;
  color: #f2f7ff;
  font-variant-numeric: tabular-nums;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stat-mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14.5px;
  color: #74f2dc;
}

.stat-card small {
  font-size: 11px;
  color: #7388a6;
}

/* Search & Vendor Tabs */
.plaza-toolbar {
  margin-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.plaza-search-wrap {
  position: relative;
  flex: 1 1 320px;
  min-width: 240px;
}

.search-ico {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: #7e93b2;
  pointer-events: none;
}

.plaza-search {
  width: 100%;
  height: 42px;
  padding: 0 14px 0 40px;
  border-radius: 10px;
  border: 1px solid rgba(164, 206, 238, 0.18);
  background: rgba(9, 16, 32, 0.68);
  color: #eef5ff;
  font-size: 13.5px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.plaza-search::placeholder {
  color: #6e83a1;
}

.plaza-search:focus {
  outline: none;
  border-color: rgba(116, 242, 220, 0.6);
  box-shadow: 0 0 0 3px rgba(116, 242, 220, 0.12);
}

.plaza-tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding: 4px;
  border-radius: 10px;
  background: rgba(9, 16, 32, 0.62);
  border: 1px solid rgba(164, 206, 238, 0.14);
}

.plaza-tab {
  height: 32px;
  padding: 0 13px;
  border-radius: 7px;
  border: 0;
  background: transparent;
  color: #95a9c6;
  font-size: 12.5px;
  font-weight: 540;
  transition: all 0.18s;
  white-space: nowrap;
}

.plaza-tab:hover {
  color: #e8f2ff;
}

.plaza-tab.active {
  background: linear-gradient(120deg, rgba(116, 242, 220, 0.22), rgba(138, 198, 255, 0.16));
  color: #ecfffb;
  box-shadow: inset 0 0 0 1px rgba(116, 242, 220, 0.42);
}

/* Channel Group Pills */
.plaza-groups {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.group-label {
  font-size: 12px;
  color: #7d92b0;
  margin-right: 4px;
}

.group-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid rgba(164, 206, 238, 0.16);
  background: rgba(14, 24, 46, 0.55);
  color: #a9bdd8;
  font-size: 12px;
  transition: all 0.18s;
}

.group-pill em {
  font-style: normal;
  font-size: 11px;
  color: #74f2dc;
  font-variant-numeric: tabular-nums;
}

.group-pill:hover {
  border-color: rgba(116, 242, 220, 0.4);
  color: #eef6ff;
}

.group-pill.active {
  background: rgba(116, 242, 220, 0.15);
  border-color: rgba(116, 242, 220, 0.62);
  color: #f0fffc;
}

/* Model Grid & Cards */
.plaza-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
}

.plaza-loading,
.plaza-empty {
  grid-column: 1 / -1;
  padding: 48px 20px;
  text-align: center;
  border-radius: 14px;
  border: 1px dashed rgba(164, 206, 238, 0.2);
  color: #8fa5c4;
  font-size: 14px;
}

.plaza-card {
  padding: 18px;
  border-radius: 14px;
  background: linear-gradient(165deg, rgba(16, 28, 54, 0.72) 0%, rgba(10, 18, 36, 0.78) 100%);
  border: 1px solid rgba(164, 206, 238, 0.14);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.plaza-card:hover {
  transform: translateY(-2px);
  border-color: rgba(116, 242, 220, 0.45);
  box-shadow: 0 14px 34px rgba(3, 8, 22, 0.5);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.vendor-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.vendor-pill.claude {
  background: rgba(216, 166, 132, 0.16);
  color: #f0bfa0;
  border: 1px solid rgba(216, 166, 132, 0.32);
}

.vendor-pill.openai {
  background: rgba(116, 242, 220, 0.14);
  color: #9bf7e6;
  border: 1px solid rgba(116, 242, 220, 0.3);
}

.vendor-pill.other {
  background: rgba(138, 180, 255, 0.15);
  color: #b8d0ff;
  border: 1px solid rgba(138, 180, 255, 0.3);
}

.billing-pill {
  font-size: 11px;
  color: #8fa6c6;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(164, 206, 238, 0.12);
}

.card-id-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 8px;
}

.card-model-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14.5px;
  font-weight: 640;
  color: #f3f8ff;
  word-break: break-all;
}

.copy-model-btn {
  flex-shrink: 0;
  padding: 4px 9px;
  border-radius: 6px;
  border: 1px solid rgba(164, 206, 238, 0.2);
  background: rgba(255, 255, 255, 0.04);
  color: #a9bed9;
  font-size: 11px;
  transition: all 0.18s;
}

.copy-model-btn:hover {
  color: #ecfffb;
  border-color: rgba(116, 242, 220, 0.55);
  background: rgba(116, 242, 220, 0.14);
}

.card-desc {
  margin: 6px 0 0;
  font-size: 12px;
  color: #849ab8;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 8px;
}

.cap-tag {
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 5px;
  background: rgba(138, 198, 255, 0.09);
  color: #9ec2eb;
}

.price-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(6, 11, 24, 0.62);
  border: 1px solid rgba(164, 206, 238, 0.1);
}

.price-metrics.single-metric {
  grid-template-columns: 1fr;
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.metric-item span {
  font-size: 10.5px;
  color: #778ca9;
}

.metric-item strong {
  font-size: 13.5px;
  font-weight: 640;
  color: #e9f4ff;
  font-variant-numeric: tabular-nums;
}

.metric-item.highlight strong {
  color: #74f2dc;
}

.card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: #7b91b0;
}

.card-endpoints {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-group-badge {
  flex-shrink: 0;
  color: #98efe1;
  font-variant-numeric: tabular-nums;
}

/* Expand More Button */
.plaza-more-wrap {
  margin-top: 22px;
  display: flex;
  justify-content: center;
}

.plaza-more-wrap[hidden] {
  display: none;
}

.plaza-more-btn {
  height: 42px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid rgba(116, 242, 220, 0.38);
  background: rgba(13, 25, 48, 0.72);
  color: #dffaf5;
  font-size: 13px;
  font-weight: 560;
  transition: all 0.2s;
}

.plaza-more-btn:hover {
  border-color: rgba(116, 242, 220, 0.78);
  background: rgba(18, 38, 66, 0.88);
  transform: translateY(-1px);
}

/* Bottom Plaza Banner */
.plaza-foot-banner {
  margin-top: 28px;
  padding: 22px 26px;
  border-radius: 16px;
  background: linear-gradient(120deg, rgba(16, 35, 62, 0.72), rgba(14, 26, 48, 0.72));
  border: 1px solid rgba(116, 242, 220, 0.22);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.plaza-foot-banner strong {
  display: block;
  font-size: 15.5px;
  color: #f2f8ff;
}

.plaza-foot-banner p {
  margin: 5px 0 0;
  font-size: 13px;
  color: #90a5c2;
}

.plaza-foot-btns {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ---------- Footer ---------- */
.copyright-bar {
  position: relative;
  z-index: 4;
  padding: 18px 5% 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  color: #8292aa;
  font-size: 11.5px;
  letter-spacing: 0.4px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: #a8bbd4;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #74f2dc;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 42px;
  z-index: 40;
  padding: 12px 20px;
  border: 1px solid #74f2dc55;
  background: #101d32f2;
  backdrop-filter: blur(12px);
  border-radius: 999px;
  color: #ecfffb;
  font-size: 12.5px;
  white-space: nowrap;
  opacity: 0;
  transform: translate(-50%, 10px);
  transition: 0.2s;
  pointer-events: none;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
}

.toast.on {
  opacity: 1;
  transform: translate(-50%, 0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Day Mode Palette ---------- */
:root[data-theme="day"] {
  color-scheme: light;
  --bg: #fcfaf6;
  --text: #302216;
  --muted: #78614c;
  --line: #78523930;
  --cyan: #1f7a73;
}

[data-theme="day"] .sky-backdrop {
  background:
    radial-gradient(ellipse at 45% 28%, #ffffffc8, transparent 65%),
    linear-gradient(170deg, #fcfaf6 20%, #fbf9f5 70%, #f5f0e8 100%);
}

[data-theme="day"] .ambient {
  background: radial-gradient(ellipse at 49% 52%, #1f7a7312, transparent 62%);
}

[data-theme="day"] .grain {
  opacity: 0.016;
  mix-blend-mode: multiply;
}

[data-theme="day"] .vignette {
  background:
    linear-gradient(180deg, #ffffff38, transparent 25%, transparent 78%, #c8bda312),
    radial-gradient(ellipse at 50% 46%, transparent 28%, #c5b99d10 100%);
}

[data-theme="day"] header.topbar.scrolled {
  background: rgba(252, 250, 246, 0.86);
  border-bottom-color: rgba(120, 82, 57, 0.14);
  box-shadow: 0 10px 30px rgba(73, 50, 34, 0.08);
}

[data-theme="day"] .brand-name {
  color: #2c2219;
}

[data-theme="day"] .brand-tag {
  color: #78614c;
  border-left-color: #7852392b;
}

[data-theme="day"] .nav-plaza {
  color: #11534d;
  background: linear-gradient(120deg, rgba(31, 122, 115, 0.12), rgba(201, 104, 41, 0.08));
  border-color: rgba(31, 122, 115, 0.36);
  box-shadow: 0 4px 16px rgba(31, 122, 115, 0.1);
}

[data-theme="day"] .plaza-spark {
  color: #1f7a73;
}

[data-theme="day"] .plaza-badge {
  background: rgba(31, 122, 115, 0.14);
  color: #11534d;
}

[data-theme="day"] .group {
  color: #78614c;
}

[data-theme="day"] .group span {
  color: #493222;
}

[data-theme="day"] .nav-auth {
  color: #6b523d;
}

[data-theme="day"] .nav-auth:hover {
  color: #2c2219;
}

[data-theme="day"] .nav-auth-wallet {
  color: #1b6f68;
}

[data-theme="day"] .console {
  color: #593d28;
  border-color: #78523938;
  background: #fff9ef80;
}

[data-theme="day"] .console:hover {
  background: #fff7e9db;
  border-color: #27736c80;
}

[data-theme="day"] .theme-toggle {
  color: #755032;
  border-color: #78523940;
  background: #fff9ef66;
}

[data-theme="day"] .theme-toggle:hover {
  color: #27736c;
  background: #fff7e9e0;
  border-color: #27736c80;
}

[data-theme="day"] a:focus-visible,
[data-theme="day"] button:focus-visible,
[data-theme="day"] input:focus-visible {
  outline-color: #1f7a73;
}

[data-theme="day"] .eyebrow {
  color: #78614c;
}

[data-theme="day"] .eyebrow::before {
  background: #1f7a73;
  box-shadow: 0 0 11px #1f7a7338;
}

[data-theme="day"] .headline {
  color: #2d2116;
  text-shadow: 0 3px 28px #fffdf8cc;
}

[data-theme="day"] .headline .accent {
  background: linear-gradient(120deg, #1b7f78 0%, #c96829 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: none;
}

[data-theme="day"] .primary {
  background: linear-gradient(110deg, #1d7a73, #289289);
  border-color: #1d7a73;
  color: #fcfaf6;
  box-shadow: 0 7px 24px rgba(29, 122, 115, 0.22);
}

[data-theme="day"] .plaza-cta {
  background: rgba(255, 251, 244, 0.88);
  border-color: rgba(31, 122, 115, 0.45);
  color: #155953;
  box-shadow: 0 6px 20px rgba(31, 122, 115, 0.1);
}

[data-theme="day"] .plaza-cta .arrow {
  color: #1f7a73;
}

[data-theme="day"] .secondary {
  background: #fff8ed99;
  border-color: #8a654542;
  color: #593d28;
}

[data-theme="day"] .models {
  color: #745c47;
}

[data-theme="day"] .models .model-item {
  background: rgba(120, 82, 57, 0.04);
}

[data-theme="day"] .models .model-item:hover {
  color: #2d2116;
  border-color: rgba(31, 122, 115, 0.35);
  background: rgba(31, 122, 115, 0.08);
}

[data-theme="day"] .models .claude {
  color: #c16d4b;
}

[data-theme="day"] .models .grok {
  color: #493222;
}

[data-theme="day"] .models .model-icon.openai {
  color: #5c422f;
}

[data-theme="day"] .step::after {
  background: #8a65453d;
}

[data-theme="day"] .step[aria-pressed="true"]::after {
  background: #1f7a73;
  box-shadow: 0 0 9px #1f7a7338;
}

[data-theme="day"] .speed-btn,
[data-theme="day"] .sequence .motion {
  background: rgba(255, 250, 242, 0.8);
  border-color: rgba(120, 82, 57, 0.22);
  color: #6c513b;
}

[data-theme="day"] .speed-btn[aria-pressed="true"] {
  color: #16655f;
  border-color: rgba(31, 122, 115, 0.55);
  background: rgba(31, 122, 115, 0.1);
}

[data-theme="day"] .axis,
[data-theme="day"] .coordinate {
  color: #826b5466;
}

[data-theme="day"] #coord-mode {
  color: #1f7a73aa;
}

[data-theme="day"] .scroll-cue {
  background: rgba(255, 251, 244, 0.82);
  border-color: rgba(120, 82, 57, 0.2);
  color: #6b523d;
}

[data-theme="day"] .scroll-cue svg {
  color: #1f7a73;
}

/* Day Mode Model Plaza */
[data-theme="day"] .plaza-shell {
  background: rgba(255, 253, 249, 0.88);
  border-color: rgba(120, 82, 57, 0.16);
  box-shadow: 0 24px 64px rgba(73, 50, 34, 0.08);
}

[data-theme="day"] .plaza-head {
  border-bottom-color: rgba(120, 82, 57, 0.12);
}

[data-theme="day"] .plaza-eyebrow {
  color: #1f7a73;
}

[data-theme="day"] .plaza-head h2 {
  color: #2c2015;
}

[data-theme="day"] .plaza-sub {
  color: #745c47;
}

[data-theme="day"] .plaza-full-btn {
  background: rgba(31, 122, 115, 0.12);
  border-color: rgba(31, 122, 115, 0.38);
  color: #135751;
}

[data-theme="day"] .plaza-sub-btn {
  background: rgba(120, 82, 57, 0.05);
  border-color: rgba(120, 82, 57, 0.2);
  color: #593d28;
}

[data-theme="day"] .stat-card {
  background: rgba(250, 245, 237, 0.85);
  border-color: rgba(120, 82, 57, 0.14);
}

[data-theme="day"] .stat-label,
[data-theme="day"] .stat-card small {
  color: #7b624d;
}

[data-theme="day"] .stat-val {
  color: #2d2015;
}

[data-theme="day"] .stat-mono {
  color: #196e67;
}

[data-theme="day"] .plaza-search {
  background: #ffffff;
  border-color: rgba(120, 82, 57, 0.22);
  color: #2d2015;
}

[data-theme="day"] .plaza-search::placeholder {
  color: #99826d;
}

[data-theme="day"] .plaza-tabs {
  background: rgba(245, 239, 230, 0.9);
  border-color: rgba(120, 82, 57, 0.15);
}

[data-theme="day"] .plaza-tab {
  color: #745c47;
}

[data-theme="day"] .plaza-tab.active {
  background: #ffffff;
  color: #155c56;
  box-shadow: 0 2px 8px rgba(73, 50, 34, 0.08);
}

[data-theme="day"] .group-pill {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(120, 82, 57, 0.18);
  color: #69503c;
}

[data-theme="day"] .group-pill em {
  color: #196e67;
}

[data-theme="day"] .group-pill.active {
  background: rgba(31, 122, 115, 0.12);
  border-color: rgba(31, 122, 115, 0.5);
  color: #11534d;
}

[data-theme="day"] .plaza-card {
  background: #ffffff;
  border-color: rgba(120, 82, 57, 0.15);
  box-shadow: 0 6px 20px rgba(73, 50, 34, 0.04);
}

[data-theme="day"] .plaza-card:hover {
  border-color: rgba(31, 122, 115, 0.45);
  box-shadow: 0 12px 30px rgba(31, 122, 115, 0.1);
}

[data-theme="day"] .vendor-pill.claude {
  background: rgba(193, 109, 75, 0.12);
  color: #9e4b2a;
  border-color: rgba(193, 109, 75, 0.28);
}

[data-theme="day"] .vendor-pill.openai {
  background: rgba(31, 122, 115, 0.12);
  color: #145e58;
  border-color: rgba(31, 122, 115, 0.28);
}

[data-theme="day"] .vendor-pill.other {
  background: rgba(59, 110, 196, 0.1);
  color: #29549c;
  border-color: rgba(59, 110, 196, 0.24);
}

[data-theme="day"] .billing-pill {
  background: rgba(120, 82, 57, 0.06);
  border-color: rgba(120, 82, 57, 0.14);
  color: #6e5641;
}

[data-theme="day"] .card-model-id {
  color: #261b11;
}

[data-theme="day"] .copy-model-btn {
  background: rgba(120, 82, 57, 0.05);
  border-color: rgba(120, 82, 57, 0.2);
  color: #634b37;
}

[data-theme="day"] .card-desc {
  color: #745c47;
}

[data-theme="day"] .cap-tag {
  background: rgba(31, 122, 115, 0.08);
  color: #1b6963;
}

[data-theme="day"] .price-metrics {
  background: rgba(249, 245, 238, 0.9);
  border-color: rgba(120, 82, 57, 0.12);
}

[data-theme="day"] .metric-item span {
  color: #826953;
}

[data-theme="day"] .metric-item strong {
  color: #2c2015;
}

[data-theme="day"] .metric-item.highlight strong {
  color: #176c65;
}

[data-theme="day"] .card-foot {
  color: #7b624d;
}

[data-theme="day"] .card-group-badge {
  color: #176c65;
}

[data-theme="day"] .plaza-more-btn {
  background: #ffffff;
  border-color: rgba(31, 122, 115, 0.4);
  color: #145e58;
}

[data-theme="day"] .plaza-foot-banner {
  background: linear-gradient(120deg, rgba(31, 122, 115, 0.08), rgba(201, 104, 41, 0.06));
  border-color: rgba(31, 122, 115, 0.24);
}

[data-theme="day"] .plaza-foot-banner strong {
  color: #2c2015;
}

[data-theme="day"] .plaza-foot-banner p {
  color: #6e5641;
}

[data-theme="day"] .copyright-bar {
  color: #755d48;
}

[data-theme="day"] .footer-links a {
  color: #5c432e;
}

[data-theme="day"] .toast {
  background: #fffdf8f5;
  border-color: #1f7a7355;
  color: #2c2015;
  box-shadow: 0 10px 28px rgba(73, 50, 34, 0.14);
}

/* ---------- Responsive Breakpoints ---------- */
@media (max-width: 1060px) {
  .brand-tag,
  .group {
    display: none;
  }
  .plaza-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  header.topbar {
    height: 76px;
    padding: 0 4.5%;
  }
  header.topbar.scrolled {
    height: 66px;
  }
  .brand-name {
    font-size: 15.5px;
  }
  .brand .brand-mark {
    width: 32px;
    height: 32px;
  }
  .nav {
    gap: 8px;
  }
  .nav-plaza {
    padding: 6px 10px;
    font-size: 12px;
  }
  .plaza-badge,
  .nav-auth-signup,
  .nav-auth-wallet {
    display: none;
  }
  .console {
    padding: 8px 11px;
    font-size: 12px;
    gap: 6px;
  }
  .hero-screen {
    min-height: calc(100svh - 76px);
    padding: 18px 14px 78px;
  }
  .eyebrow {
    font-size: 12px;
    letter-spacing: 2.5px;
    margin-bottom: 16px;
  }
  .headline-stage {
    height: clamp(138px, 30vw, 186px);
  }
  .headline {
    font-size: clamp(32px, 8vw, 48px);
    letter-spacing: -1px;
  }
  .headline.short,
  .headline.quality {
    --feature-size: clamp(48px, 11.5vw, 72px);
  }
  .headline.short {
    letter-spacing: 5px;
  }
  .headline.quality {
    flex-direction: column;
  }
  .cta {
    height: 44px;
    min-width: 136px;
    padding: 0 15px;
    font-size: 13px;
  }
  .axis,
  .coordinate {
    display: none;
  }
  .scroll-cue {
    font-size: 11px;
    padding: 6px 13px;
  }
  .plaza-section {
    padding: 20px 3.5% 56px;
  }
  .plaza-shell {
    padding: 22px 16px;
    border-radius: 16px;
  }
  .plaza-stats {
    grid-template-columns: 1fr;
  }
  .plaza-grid {
    grid-template-columns: 1fr;
  }
}