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

:root {
  --bg: #070a0f;
  --surface: rgba(14, 18, 26, 0.88);
  --border: rgba(255, 255, 255, 0.08);
  --text: #f0f4f8;
  --muted: #8a96a8;
  --red: #e10600;
  --red-dim: #8b0000;
  --blue: #2a8fd4;
  --blue-dim: #1a5a8a;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "Cascadia Code", "Fira Code", "SF Mono", ui-monospace, monospace;
  --radius: 16px;
  --max: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  overflow-x: hidden;
  position: relative;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black, transparent);
  pointer-events: none;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  width: 42vw;
  height: 42vw;
  max-width: 520px;
  max-height: 520px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.22;
  pointer-events: none;
  z-index: 0;
}

.bg-glow--red {
  top: -8%;
  left: -5%;
  background: var(--red);
}

.bg-glow--blue {
  top: 10%;
  right: -8%;
  background: var(--blue);
}

.grok-banner {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 0.65rem 1rem;
  text-align: center;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: #e8ecf2;
  background: linear-gradient(
    90deg,
    rgba(225, 6, 0, 0.35),
    rgba(42, 143, 212, 0.28) 50%,
    rgba(225, 6, 0, 0.35)
  );
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.grok-banner p {
  margin: 0;
}

.grok-banner strong {
  font-weight: 800;
  letter-spacing: 0.06em;
  background: linear-gradient(90deg, #fff, #9ec9ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.grok-banner a {
  color: #c5e0ff;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(197, 224, 255, 0.35);
}

.grok-banner a:hover {
  color: white;
  border-bottom-color: white;
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.75rem 0 0.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 10px;
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  background: linear-gradient(135deg, var(--red), #ff4d4d 45%, var(--blue));
  color: white;
  box-shadow: 0 0 28px rgba(225, 6, 0, 0.35);
}

.brand-kicker {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.header-tagline {
  font-size: 0.9rem;
  color: var(--muted);
}

.hero {
  padding: 2.5rem 0 2rem;
}

.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

.hero-title {
  font-size: clamp(1.75rem, 4.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 18ch;
  margin-bottom: 1rem;
}

.accent-red {
  color: var(--red);
  text-shadow: 0 0 32px rgba(225, 6, 0, 0.4);
}

.accent-blue {
  color: var(--blue);
  text-shadow: 0 0 32px rgba(42, 143, 212, 0.4);
}

.hero-lede {
  max-width: 58ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-heading {
  margin-bottom: 1.35rem;
}

.section-heading h2 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0.35rem 0 0.75rem;
  color: var(--muted);
}

.section-lede {
  max-width: 62ch;
  color: var(--muted);
  font-size: 0.98rem;
}

.seed-quote {
  margin: 1rem 0 0;
  max-width: 72ch;
  padding: 1rem 1.15rem;
  border-radius: 12px;
  border: 1px solid rgba(225, 6, 0, 0.28);
  background: rgba(225, 6, 0, 0.08);
  color: #e8d4d4;
  font-size: 0.92rem;
  line-height: 1.55;
  font-style: normal;
}

.oneshot {
  padding: 0.25rem 0 2.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.iterated {
  padding-bottom: 0.5rem;
}

.showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  padding-bottom: 2.5rem;
}

.showcase--oneshot {
  max-width: 520px;
}

.card--oneshot {
  border-color: rgba(255, 196, 80, 0.28);
}

.card--oneshot:hover {
  border-color: rgba(255, 196, 80, 0.55);
  box-shadow: 0 16px 48px rgba(255, 160, 40, 0.12);
}

.card--oneshot .card-visual {
  background:
    radial-gradient(circle at 40% 60%, rgba(255, 180, 60, 0.22), transparent 55%),
    linear-gradient(160deg, #1a1610, #0a0e14 60%, #1a1008);
}

.oneshot-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 2;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.35em 0.65em;
  border-radius: 999px;
  color: #1a1208;
  background: linear-gradient(135deg, #ffc857, #e8a020);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.card--oneshot .card-body h3 {
  text-shadow: 0 0 24px rgba(255, 180, 60, 0.25);
}

.card--oneshot .feature-list li::before {
  background: #e8a020;
}

.cta--oneshot {
  background: linear-gradient(135deg, #e8a020, #a86a08);
  box-shadow: 0 8px 24px rgba(232, 160, 32, 0.3);
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
}

.card--voxel:hover {
  border-color: rgba(225, 6, 0, 0.45);
  box-shadow: 0 16px 48px rgba(225, 6, 0, 0.12);
}

.card--classic:hover {
  border-color: rgba(42, 143, 212, 0.45);
  box-shadow: 0 16px 48px rgba(42, 143, 212, 0.12);
}

.card-visual {
  height: 160px;
  position: relative;
  overflow: hidden;
}

.card--voxel .card-visual {
  background:
    radial-gradient(circle at 30% 70%, rgba(225, 6, 0, 0.25), transparent 55%),
    linear-gradient(160deg, #121820, #0a0e14 60%, #1a0a0a);
}

.card--classic .card-visual {
  background:
    radial-gradient(circle at 70% 40%, rgba(42, 143, 212, 0.28), transparent 50%),
    linear-gradient(160deg, #0e1620, #0a0e14 55%, #0a1420);
}

.voxel-preview {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.voxel-preview .block {
  position: absolute;
  width: 28px;
  height: 28px;
  background: #c41e1e;
  border: 2px solid rgba(0, 0, 0, 0.35);
  box-shadow: inset -4px -4px 0 rgba(0, 0, 0, 0.2), 0 4px 0 rgba(0, 0, 0, 0.25);
}

.b1 { width: 120px; height: 18px; background: #2a2e36; transform: translate(0, 28px) rotate(-8deg); }
.b2 { width: 36px; height: 22px; background: #e10600; transform: translate(-8px, -4px); }
.b3 { width: 22px; height: 14px; background: #f0f4f8; transform: translate(18px, -18px); }
.b4 { width: 48px; height: 12px; background: #8b0000; transform: translate(-2px, 14px); }
.b5 { width: 16px; height: 16px; background: #1a1a1a; border-radius: 50%; transform: translate(-36px, 18px); }
.b6 { width: 16px; height: 16px; background: #1a1a1a; border-radius: 50%; transform: translate(28px, 18px); }
.b7 { width: 10px; height: 22px; background: #333; transform: translate(-2px, -28px); }

.classic-preview {
  position: absolute;
  inset: 0;
}

.classic-preview .horizon {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 45%;
  background: linear-gradient(to top, #1a3a1a 0%, #2d5a2d 40%, transparent);
  opacity: 0.45;
}

.classic-preview .ribbon {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 38%;
  height: 18px;
  background: linear-gradient(90deg, #3a3a42, #555560, #3a3a42);
  border-radius: 4px;
  transform: perspective(200px) rotateX(48deg) scaleY(1.8);
  box-shadow: 0 0 0 2px #c41e1e, 0 12px 24px rgba(0, 0, 0, 0.4);
}

.classic-preview .car-shape {
  position: absolute;
  left: 48%;
  bottom: 42%;
  width: 48px;
  height: 18px;
  margin-left: -24px;
  background: linear-gradient(180deg, #2a8fd4, #1a5a8a);
  border-radius: 40% 40% 20% 20%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.classic-preview .car-shape::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -10px;
  width: 6px;
  height: 14px;
  margin-left: -3px;
  background: #ddd;
  border-radius: 2px;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.35rem 1.4rem 1.5rem;
  flex: 1;
}

.card-label {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.card-body h3 {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.card--voxel .card-body h3 {
  text-shadow: 0 0 24px rgba(225, 6, 0, 0.25);
}

.card--classic .card-body h3 {
  text-shadow: 0 0 24px rgba(42, 143, 212, 0.25);
}

.card-desc {
  color: var(--muted);
  font-size: 0.95rem;
  flex: 1;
}

.feature-list {
  list-style: none;
  display: grid;
  gap: 0.35rem;
  margin: 0.25rem 0 0.5rem;
}

.feature-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  color: #c5cdd8;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
}

.card--voxel .feature-list li::before {
  background: var(--red);
}

.card--classic .feature-list li::before {
  background: var(--blue);
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: auto;
  padding: 0.8rem 1.1rem;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: white;
  transition: transform 0.15s ease, filter 0.15s ease, box-shadow 0.15s ease;
}

.cta:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.cta:focus-visible {
  outline: 2px solid white;
  outline-offset: 3px;
}

.cta--red {
  background: linear-gradient(135deg, var(--red), var(--red-dim));
  box-shadow: 0 8px 24px rgba(225, 6, 0, 0.3);
}

.cta--blue {
  background: linear-gradient(135deg, var(--blue), var(--blue-dim));
  box-shadow: 0 8px 24px rgba(42, 143, 212, 0.3);
}

.cta-arrow {
  transition: transform 0.15s ease;
}

.cta:hover .cta-arrow {
  transform: translateX(3px);
}

.compare {
  padding: 0.5rem 0 3rem;
}

.compare h2 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 480px;
}

th,
td {
  padding: 0.85rem 1.1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

thead th {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.02);
}

tbody th {
  font-weight: 600;
  color: #c5cdd8;
  white-space: nowrap;
}

tbody tr:last-child th,
tbody tr:last-child td {
  border-bottom: none;
}

tbody td {
  color: var(--muted);
}

kbd {
  font-family: var(--mono);
  font-size: 0.8em;
  padding: 0.1em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
}

/* —— Prompts timeline —— */
.prompts {
  padding: 0.5rem 0 3.5rem;
}

.prompts-header {
  margin-bottom: 1.5rem;
}

.prompts-header h2 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0.35rem 0 0.75rem;
  color: var(--muted);
}

.prompts-lede {
  max-width: 62ch;
  color: var(--muted);
  font-size: 0.98rem;
}

.prompts-lede strong {
  color: var(--text);
  font-weight: 700;
}

.prompt-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  border-left: 2px solid rgba(255, 255, 255, 0.08);
  margin-left: 0.65rem;
  padding-left: 1.25rem;
}

.prompt-item {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.15rem 1.1rem;
  backdrop-filter: blur(12px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.prompt-item::before {
  content: "";
  position: absolute;
  left: calc(-1.25rem - 5px);
  top: 1.35rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #2a3444;
  border: 2px solid #5a6a80;
  box-shadow: 0 0 0 3px var(--bg);
}

.prompt-item--seed {
  border-color: rgba(225, 6, 0, 0.35);
  box-shadow: 0 8px 32px rgba(225, 6, 0, 0.08);
}

.prompt-item--seed::before {
  background: var(--red);
  border-color: #ff6b6b;
  box-shadow: 0 0 0 3px var(--bg), 0 0 12px rgba(225, 6, 0, 0.5);
}

.prompt-item:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

.prompt-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.65rem;
}

.prompt-step {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.prompt-tag {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.2em 0.55em;
  border-radius: 4px;
  color: #c5d4e8;
  background: rgba(42, 143, 212, 0.15);
  border: 1px solid rgba(42, 143, 212, 0.28);
}

.prompt-item--seed .prompt-tag {
  color: #ffc9c9;
  background: rgba(225, 6, 0, 0.18);
  border-color: rgba(225, 6, 0, 0.35);
}

.prompt-meta time {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  margin-left: auto;
}

.prompt-quote {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.55;
  color: #d8e0ea;
  font-style: normal;
  border: none;
  padding: 0;
}

.prompt-quote::before {
  content: "“";
  color: var(--muted);
  font-size: 1.2em;
  line-height: 0;
  margin-right: 0.1em;
}

.prompt-quote::after {
  content: "”";
  color: var(--muted);
  font-size: 1.2em;
  line-height: 0;
  margin-left: 0.05em;
}

.site-footer {
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer a {
  color: #c5cdd8;
  text-decoration: none;
}

.site-footer a:hover {
  color: white;
  text-decoration: underline;
}

@media (max-width: 640px) {
  .header-tagline {
    width: 100%;
  }

  .hero {
    padding-top: 1.5rem;
  }

  .card-visual {
    height: 130px;
  }
}