:root {
  --bg: #05070d;
  --bg-2: #0a0f1a;
  --bg-3: #101827;
  --surface: rgba(10, 15, 24, 0.78);
  --surface-strong: rgba(13, 19, 31, 0.92);
  --surface-elevated: rgba(18, 26, 42, 0.96);
  --surface-deep: rgba(4, 7, 13, 0.98);
  --ink: #f8faff;
  --ink-soft: #dce4f0;
  --muted: #9ba7bb;
  --muted-strong: #b8c4d9;
  --line: rgba(168, 186, 214, 0.14);
  --line-strong: rgba(188, 205, 230, 0.24);
  --brand: #c9d9ff;
  --brand-2: #83a7ff;
  --accent: #eef5ff;
  --accent-soft: rgba(131, 167, 255, 0.16);
  --hero-text: #ffffff;
  --hero-muted: rgba(220, 230, 248, 0.86);
  --ok: #7ee0b0;
  --warn: #f7cf75;
  --error: #ff8f94;
  --glow-1: rgba(149, 176, 255, 0.28);
  --glow-2: rgba(218, 232, 255, 0.26);
  --glow-3: rgba(70, 102, 180, 0.22);
  --shadow-lg: 0 36px 90px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 20px 48px rgba(0, 0, 0, 0.32);
  --shadow-sm: 0 10px 24px rgba(0, 0, 0, 0.22);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --motion-fast: 120ms;
  --motion-base: 220ms;
  --motion-slow: 420ms;
  --ease-standard: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-emphasis: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "SF Pro Display", "Avenir Next", "IBM Plex Sans", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 18%, rgba(100, 130, 200, 0.12), transparent 18%),
    radial-gradient(circle at 90% 28%, rgba(80, 110, 180, 0.10), transparent 26%),
    radial-gradient(circle at 12% 14%, rgba(15, 25, 50, 0.6), transparent 32%),
    radial-gradient(circle at 70% 96%, rgba(12, 20, 45, 0.3), transparent 30%),
    linear-gradient(180deg, #010204 0%, #030610 32%, #060c18 64%, #030508 100%);
  min-height: 100vh;
  position: relative;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  background:
    radial-gradient(circle at 84% 22%, rgba(120, 150, 220, 0.10), transparent 10%),
    radial-gradient(circle at 76% 18%, rgba(80, 110, 180, 0.08), transparent 18%),
    radial-gradient(circle at 64% 10%, rgba(30, 45, 80, 0.12), transparent 24%);
  filter: blur(22px);
  opacity: 0.7;
}

body::after {
  background-image:
    linear-gradient(rgba(164, 181, 214, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(164, 181, 214, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.24), transparent 72%);
  opacity: 0.34;
}

.shell {
  position: relative;
  width: min(1080px, 88vw);
  margin: 0 auto;
  padding: 1.4rem 0 5rem;
}

.topbar {
  position: sticky;
  top: 0.8rem;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.95rem 1.05rem;
  border: 1px solid rgba(214, 225, 255, 0.12);
  border-radius: 999px;
  background: rgba(6, 10, 18, 0.72);
  backdrop-filter: blur(22px);
  box-shadow: 0 20px 36px rgba(0, 0, 0, 0.28);
}

.brand {
  font-size: 1.05rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 900;
  padding-left: 0.35rem;
}

.brand a {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--hero-text);
  text-decoration: none;
}

.brand-mark {
  width: auto;
  height: 1.15rem;
  flex: 0 0 auto;
  filter: drop-shadow(0 4px 10px rgba(92, 182, 255, 0.18));
}

.nav {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted-strong);
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.03);
  text-decoration: none;
  padding: 0.48rem 0.82rem;
  border-radius: 999px;
  font-size: 0.9rem;
  transition:
    transform var(--motion-base) var(--ease-standard),
    border-color var(--motion-fast) ease,
    background var(--motion-fast) ease,
    color var(--motion-fast) ease,
    box-shadow var(--motion-fast) ease;
}

.nav a:hover,
.nav a:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(201, 217, 255, 0.24);
  background: rgba(255, 255, 255, 0.06);
  color: var(--hero-text);
  box-shadow: 0 10px 18px rgba(120, 150, 235, 0.08);
}

.hero {
  position: relative;
  margin-top: 2.8rem;
  padding: 4rem 3.5rem 3.5rem;
  overflow: hidden;
  border: 1px solid rgba(214, 225, 255, 0.11);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 78% 26%, rgba(226, 236, 255, 0.44), transparent 16%),
    radial-gradient(circle at 70% 26%, rgba(126, 156, 255, 0.26), transparent 26%),
    radial-gradient(circle at 18% 16%, rgba(45, 60, 104, 0.52), transparent 26%),
    linear-gradient(130deg, rgba(3, 6, 12, 0.98), rgba(6, 11, 20, 0.98) 44%, rgba(12, 19, 34, 0.97) 76%, rgba(16, 25, 44, 0.95));
  color: var(--hero-text);
  box-shadow: var(--shadow-lg);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
}

.hero::before {
  width: 560px;
  height: 560px;
  right: -220px;
  top: -80px;
  background: radial-gradient(circle, rgba(245, 249, 255, 0.3), rgba(175, 198, 255, 0.12) 32%, transparent 66%);
  filter: blur(18px);
  animation: heroFloat 12s ease-in-out infinite;
}

.hero::after {
  width: 320px;
  height: 320px;
  left: -120px;
  bottom: -120px;
  background: radial-gradient(circle, rgba(60, 80, 139, 0.34), transparent 70%);
  filter: blur(12px);
  animation: heroFloat 14s ease-in-out infinite reverse;
}

.hero > * {
  position: relative;
  z-index: 1;
  animation: rise var(--motion-slow) var(--ease-emphasis) both;
}

.hero .eyebrow,
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  font-weight: 800;
  color: rgba(227, 236, 255, 0.74);
}

.hero .eyebrow::before,
.kicker::before {
  content: "";
  width: 30px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(239, 245, 255, 0.62));
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  text-wrap: balance;
}

.home-hero h1 {
  max-width: 10.5ch;
  font-size: clamp(3.4rem, 10vw, 7.3rem);
  line-height: 0.94;
  letter-spacing: -0.07em;
}

.hero p {
  margin: 1.4rem 0 0;
  max-width: 54ch;
  color: var(--hero-muted);
  font-size: 1.15rem;
  line-height: 1.75;
  font-weight: 300;
}

.hero-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.9fr);
  gap: 1.4rem;
  align-items: end;
}

.hero-panel {
  padding: 1rem 1.05rem;
  border: 1px solid rgba(214, 225, 255, 0.11);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(8px);
}

.hero-panel p {
  margin: 0;
  font-size: 0.95rem;
  color: rgba(224, 233, 247, 0.82);
}

.hero-metric {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.hero-metric strong {
  display: block;
  font-size: 1.45rem;
  letter-spacing: -0.04em;
}

.hero-metric span {
  font-size: 0.82rem;
  color: rgba(214, 225, 244, 0.72);
}

.cta-row {
  margin-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
  padding: 0.78rem 1.08rem;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 800;
  font-size: 0.92rem;
  transition:
    transform var(--motion-base) var(--ease-standard),
    box-shadow var(--motion-base) var(--ease-standard),
    background var(--motion-fast) ease,
    border-color var(--motion-fast) ease,
    color var(--motion-fast) ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.32);
}

.btn-primary {
  color: #07101c;
  background: linear-gradient(135deg, #f3f8ff, #cbdcff 52%, #9fb9ff 100%);
}

.btn-ghost {
  color: #eef7ff;
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
}

.grid {
  margin-top: 2.4rem;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.2rem;
}

.card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(13, 19, 31, 0.96), rgba(9, 14, 24, 0.9));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--motion-base) var(--ease-standard),
    box-shadow var(--motion-base) var(--ease-standard),
    border-color var(--motion-fast) ease,
    background var(--motion-base) ease;
  animation: rise var(--motion-slow) var(--ease-emphasis) both;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 42%);
  pointer-events: none;
}

.card:hover,
.card:focus-within {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.card h2,
.card h3 {
  margin: 0.15rem 0 0.7rem;
  color: var(--hero-text);
  letter-spacing: -0.03em;
}

.card p,
.card li,
.card dd,
.card dt,
.card blockquote {
  color: var(--ink-soft);
  font-weight: 300;
  line-height: 1.7;
}

.card a,
main a,
footer a,
p a,
li a {
  color: #dce8ff;
}

.card a:hover,
main a:hover,
footer a:hover,
p a:hover,
li a:hover {
  color: #ffffff;
}

.note {
  color: var(--muted);
  border-left: 4px solid rgba(185, 205, 255, 0.34);
  padding-left: 0.9rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0 14px 14px 0;
}

.codeblock,
pre,
code {
  font-family: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;
}

.codeblock {
  position: relative;
  margin-top: 0.95rem;
  border: 1px solid rgba(214, 225, 255, 0.11);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(2, 5, 10, 0.96), rgba(5, 8, 14, 0.98));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.codeblock pre,
pre {
  margin: 0;
  padding: 1.15rem 5.6rem 1.2rem 1.2rem;
  overflow-x: auto;
  color: #f2f6ff;
  background: transparent;
}

code {
  padding: 0.12rem 0.35rem;
  border-radius: 6px;
  color: #f2f6ff;
  background: rgba(255, 255, 255, 0.06);
}

.copy-btn {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  z-index: 2;
  border: 1px solid rgba(214, 225, 255, 0.22);
  background: rgba(7, 12, 22, 0.88);
  color: var(--hero-text);
  border-radius: 999px;
  padding: 0.42rem 0.78rem;
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(10px);
}

.copy-btn:hover,
.copy-btn:focus-visible {
  background: rgba(16, 24, 39, 0.96);
  color: var(--hero-text);
  border-color: rgba(214, 225, 255, 0.3);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td,
main th,
main td {
  text-align: left;
  padding: 0.75rem 0.6rem;
  border-bottom: 1px solid rgba(214, 225, 255, 0.08);
  vertical-align: top;
}

.table tbody tr,
main tbody tr {
  transition: background var(--motion-fast) ease;
}

.table tbody tr:hover,
main tbody tr:hover {
  background: rgba(255, 255, 255, 0.03);
}

.table th,
main th {
  color: var(--hero-text);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.footer {
  margin: 3rem 0 0;
  padding: 2rem 0 1.2rem;
  color: var(--muted);
  text-align: center;
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.02em;
}

main {
  margin-top: 1.5rem;
}

main .card + .card,
main section + section {
  margin-top: 1rem;
}

main h1,
main h2,
main h3,
main h4 {
  color: var(--hero-text);
  letter-spacing: -0.03em;
}

main p,
main li,
main dd,
main dt,
main blockquote,
main table {
  color: var(--ink-soft);
}

main ul,
main ol {
  padding-left: 1.2rem;
}

main table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 16px;
}

main hr {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(214, 225, 255, 0.2), transparent);
  margin: 1.6rem 0;
}

main blockquote {
  margin: 1rem 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid rgba(180, 201, 255, 0.44);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 0 14px 14px 0;
}

.span-4 {
  grid-column: span 4;
}

.span-6 {
  grid-column: span 6;
}

.span-8 {
  grid-column: span 8;
}

.span-12 {
  grid-column: span 12;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes heroFloat {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(0, 16px, 0) scale(1.03);
  }
}

@media (max-width: 900px) {
  .hero {
    padding: 2.2rem 1.4rem;
  }

  .hero h1 {
    max-width: none;
    font-size: clamp(2.6rem, 16vw, 4.5rem);
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .span-4,
  .span-6,
  .span-8,
  .span-12 {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(94vw, 100%);
    padding-top: 0.75rem;
  }

  .topbar {
    position: static;
    border-radius: 24px;
  }

  .nav {
    width: 100%;
  }

  .nav a {
    flex: 1 1 auto;
    justify-content: center;
    text-align: center;
  }

  .hero {
    margin-top: 1.1rem;
  }

  .cta-row {
    width: 100%;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .hero-metric {
    grid-template-columns: 1fr;
  }
}

/* --- Scroll reveal animations --- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Typing cursor */
.type-cursor {
  color: var(--brand-2);
  font-weight: 300;
  animation: none;
}

.type-cursor.blink {
  animation: cursorBlink 1s step-end infinite;
}

@keyframes cursorBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Smooth card hover lift */
.card {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(131, 167, 255, 0.08);
}

/* Hero entrance */
.home-hero h1 {
  visibility: hidden;
}

.home-hero .eyebrow {
  animation: fadeSlideUp 0.6s 0.1s both;
}

.home-hero p {
  animation: fadeSlideUp 0.6s 0.3s both;
}

.home-hero .cta-row {
  animation: fadeSlideUp 0.6s 0.5s both;
}

/* Code blocks start empty — text hidden until typing animation fires */
.codeblock pre.code-pending {
  color: transparent;
  user-select: none;
}

.code-type-overlay {
  display: block;
  white-space: pre-wrap;
  word-break: break-all;
  color: #f2f6ff;
}

.code-type-original {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  user-select: text;
  white-space: pre-wrap;
}

.code-cursor {
  color: var(--brand-2, #83a7ff);
  animation: cursorBlink 1s step-end infinite;
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}