:root {
  --cream-0: #fffdf8;
  --cream-1: #f7f1e8;
  --clay-1: #d5846f;
  --clay-2: #c15b49;
  --clay-3: #8f3b2d;
  --ink-0: #1f1f1f;
  --ink-1: #2f2d2b;
  --ink-2: #4f4b47;
  --accent: #5f4b66;
  --line: rgba(65, 50, 40, 0.2);
  --card: rgba(255, 251, 244, 0.74);
  --shadow: 0 18px 54px rgba(83, 43, 34, 0.15);
  --radius-xl: 28px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink-0);
  font-family: "Sora", "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 8% 5%, rgba(193, 91, 73, 0.17), transparent 24%),
    radial-gradient(circle at 92% 12%, rgba(95, 75, 102, 0.16), transparent 29%),
    linear-gradient(180deg, var(--cream-0), var(--cream-1));
  line-height: 1.55;
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.24;
  z-index: -1;
  background-image: radial-gradient(rgba(31, 31, 31, 0.06) 0.5px, transparent 0.5px);
  background-size: 4px 4px;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header,
main > section,
.site-footer {
  width: min(100% - 2.2rem, var(--max-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0.7rem;
  z-index: 20;
  margin-top: 1rem;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  background: rgba(255, 252, 246, 0.72);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--clay-3);
}

.site-header nav {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.site-header nav a {
  text-decoration: none;
  font-size: 0.85rem;
  color: var(--ink-2);
  padding: 0.42rem 0.7rem;
  border-radius: 999px;
  transition: background-color 200ms ease, color 200ms ease;
}

.site-header nav a:hover,
.site-header nav a:focus-visible {
  background: rgba(193, 91, 73, 0.14);
  color: var(--ink-0);
  outline: none;
}

main {
  padding-block: 2.6rem 4rem;
}

main > section {
  margin-top: 4rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 2rem;
}

.hero h1 {
  margin: 0.55rem 0 1rem;
  font-size: clamp(2.1rem, 5.6vw, 4.2rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
}

.hero-copy > p:not(.eyebrow) {
  margin: 0;
  color: var(--ink-2);
  max-width: 44ch;
}

.hero-link {
  color: var(--clay-2);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color 180ms ease, background-color 180ms ease;
  border-radius: 6px;
  padding: 0.05rem 0.2rem;
}

.hero-link:hover,
.hero-link:focus-visible {
  color: var(--clay-3);
  background: rgba(193, 91, 73, 0.12);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.button {
  text-decoration: none;
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0.72rem 1.1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.button.primary {
  background: linear-gradient(120deg, var(--clay-2), var(--clay-1));
  color: #fff;
  box-shadow: 0 10px 28px rgba(193, 91, 73, 0.34);
}

.button.ghost {
  border-color: rgba(95, 75, 102, 0.36);
  color: var(--accent);
  background: rgba(255, 253, 249, 0.66);
}

.chat-visual {
  position: relative;
  min-height: 300px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(193, 91, 73, 0.22);
  background:
    radial-gradient(circle at 20% 15%, rgba(193, 91, 73, 0.2), transparent 32%),
    radial-gradient(circle at 80% 75%, rgba(95, 75, 102, 0.22), transparent 38%),
    linear-gradient(160deg, rgba(255, 252, 245, 0.95), rgba(245, 234, 222, 0.82));
  padding: 1.2rem;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.chat-visual::after {
  content: "live stream";
  position: absolute;
  right: 1rem;
  top: 0.8rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--clay-3);
  opacity: 0.8;
}

.bubble {
  position: absolute;
  max-width: min(92%, 320px);
  border-radius: 16px;
  padding: 0.85rem 0.92rem;
  font-family: "IBM Plex Mono", "Fira Code", monospace;
  font-size: 0.78rem;
  line-height: 1.45;
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 8px 24px rgba(31, 31, 31, 0.12);
  animation: floatMessage 8s ease-in-out infinite;
}

.bubble-a {
  left: 1rem;
  top: 1.2rem;
  background: rgba(255, 243, 234, 0.95);
}

.bubble-b {
  right: 1.2rem;
  top: 6.7rem;
  background: rgba(242, 235, 246, 0.95);
  animation-delay: -2.6s;
}

.bubble-c {
  left: 2.2rem;
  bottom: 1.15rem;
  background: rgba(243, 248, 238, 0.95);
  animation-delay: -5.2s;
}

@keyframes floatMessage {
  0%,
  100% {
    transform: translateY(0) translateX(0);
  }
  50% {
    transform: translateY(-7px) translateX(1px);
  }
}

.code-flow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 2rem;
}

.code-flow h2,
.features h2,
.architecture h2,
.cloud h2,
.quick-start h2,
.github h2 {
  margin: 0.6rem 0 0.9rem;
  font-size: clamp(1.45rem, 3.2vw, 2.25rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.code-flow p:not(.eyebrow),
.features > p:not(.eyebrow),
.architecture > p:not(.eyebrow),
.cloud > p:not(.eyebrow),
.quick-start > p:not(.eyebrow),
.github p {
  margin: 0;
  color: var(--ink-2);
}

.code-shell {
  background: #141414;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 46px rgba(10, 10, 10, 0.36);
}

.code-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0.65rem 0.85rem;
  background: #212121;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.code-head span {
  width: 0.66rem;
  height: 0.66rem;
  border-radius: 50%;
  background: #ff7f61;
}

.code-head span:nth-child(2) {
  background: #f8b84e;
}

.code-head span:nth-child(3) {
  background: #6bc57d;
}

.code-file-label {
  margin: 0 0 0 0.3rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  color: rgba(248, 248, 248, 0.75);
  margin-left: auto;
}

.code-tabs {
  display: inline-flex;
  margin-left: 0.35rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0.12rem;
}

.code-tab {
  border: 0;
  background: transparent;
  color: rgba(248, 248, 248, 0.7);
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  font-size: 0.72rem;
  font-family: "IBM Plex Mono", monospace;
  cursor: pointer;
}

.code-tab:hover,
.code-tab:focus-visible {
  color: #ffffff;
  outline: none;
}

.code-tab.is-active {
  color: #fff4f1;
  background: rgba(193, 91, 73, 0.45);
}

.code-shell pre {
  margin: 0;
  min-height: 270px;
  padding: 1.05rem 1rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.code-shell code {
  color: #e7e7e7;
  font-family: "IBM Plex Mono", "Fira Code", monospace;
  font-size: 0.82rem;
  line-height: 1.6;
}

.cursor {
  display: inline-block;
  width: 0.56ch;
  height: 1.2em;
  background: #f8f8f8;
  vertical-align: -0.18em;
  animation: blink 900ms steps(1, end) infinite;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

.terminal-tools {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.6rem;
  align-items: center;
  padding: 0.8rem 0.95rem 0.95rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(16, 16, 16, 0.95);
}

.terminal-btn {
  border: 1px solid rgba(193, 91, 73, 0.8);
  color: #ffe9e4;
  background: rgba(193, 91, 73, 0.24);
  border-radius: 999px;
  padding: 0.34rem 0.72rem;
  font-size: 0.78rem;
  font-family: "IBM Plex Mono", monospace;
  cursor: pointer;
  transition: background-color 150ms ease;
}

.terminal-btn:hover,
.terminal-btn:focus-visible {
  background: rgba(193, 91, 73, 0.42);
  outline: none;
}

.terminal-input {
  width: 100%;
  min-width: 0;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: #0f0f0f;
  color: #f1f1f1;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.77rem;
  padding: 0.45rem 0.6rem;
}

.terminal-input:focus-visible {
  outline: 2px solid rgba(193, 91, 73, 0.72);
  outline-offset: 1px;
}

.features,
.architecture,
.cloud {
  text-align: center;
}

.feature-grid,
.crate-grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cloud-grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1rem;
}

.feature-grid article,
.cloud-grid article,
.crate-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.05rem;
  background: var(--card);
  text-align: left;
  box-shadow: 0 8px 24px rgba(54, 34, 28, 0.08);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.cloud-grid article {
  grid-column: span 2;
}

/* Center the last row when cloud grid has 5 cards. */
.cloud-grid article:nth-child(4):nth-last-child(2) {
  grid-column: 2 / span 2;
}

.cloud-grid article:nth-child(5):last-child {
  grid-column: 4 / span 2;
}

.feature-grid article:hover,
.cloud-grid article:hover,
.crate-grid article:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 36px rgba(54, 34, 28, 0.14);
}

.feature-grid article h3,
.cloud-grid article h3,
.crate-grid article h3 {
  margin: 0;
  font-size: 1.05rem;
}

.feature-grid article p,
.cloud-grid article p,
.crate-grid article p {
  margin: 0.5rem 0 0;
  color: var(--ink-2);
}

.cloud-grid code {
  font-family: "IBM Plex Mono", "Fira Code", monospace;
  font-size: 0.78em;
  background: rgba(95, 75, 102, 0.08);
  border-radius: 6px;
  padding: 0.12rem 0.34rem;
}

.cloud-grid a {
  color: var(--accent);
  text-underline-offset: 2px;
}

.cloud-grid a:hover,
.cloud-grid a:focus-visible {
  color: #4b3b51;
}

.crate-grid {
  position: relative;
}

.crate-grid::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(76%, 560px);
  height: min(66%, 230px);
  border: 1px dashed rgba(95, 75, 102, 0.35);
  border-radius: 22px;
  pointer-events: none;
}

.github {
  text-align: center;
  padding: 2.3rem 1.5rem;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(193, 91, 73, 0.26);
  background:
    linear-gradient(110deg, rgba(193, 91, 73, 0.2), rgba(95, 75, 102, 0.17)),
    rgba(255, 249, 242, 0.9);
}

.github .button {
  margin-top: 1.2rem;
}

.quick-start {
  margin-top: 3rem;
  text-align: center;
}

.qs-grid {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  text-align: left;
}

.qs-block {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  padding: 1rem;
  box-shadow: 0 8px 24px rgba(54, 34, 28, 0.08);
}

.qs-block p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.9rem;
}

.qs-heading {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  color: var(--clay-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
  text-align: left;
}

.quick-shell {
  margin-top: 0.72rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  background: #121212;
  overflow: hidden;
  box-shadow: 0 20px 46px rgba(10, 10, 10, 0.32);
}

.quick-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.7rem;
  align-items: center;
  padding: 0.8rem 0.9rem;
}

.quick-row + .quick-row {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.quick-row code {
  text-align: left;
  color: #ececec;
  font-family: "IBM Plex Mono", "Fira Code", monospace;
  font-size: 0.8rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.copy-btn {
  border: 1px solid rgba(111, 79, 127, 0.72);
  background: rgba(111, 79, 127, 0.24);
  color: #f3e9ff;
  border-radius: 999px;
  padding: 0.3rem 0.66rem;
  font-size: 0.75rem;
  font-family: "IBM Plex Mono", monospace;
  cursor: pointer;
  transition: background-color 150ms ease;
}

.copy-btn:hover,
.copy-btn:focus-visible {
  background: rgba(111, 79, 127, 0.42);
  outline: none;
}

.site-footer {
  margin-top: 4.2rem;
  padding: 1.2rem 0 2rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.site-footer p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.82rem;
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.site-footer a {
  color: var(--accent);
  font-size: 0.82rem;
  text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  text-decoration: underline;
  outline: none;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 680ms ease, transform 680ms cubic-bezier(0.2, 0.9, 0.25, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(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;
}

@media (max-width: 960px) {
  .hero,
  .code-flow {
    grid-template-columns: 1fr;
  }

  .chat-visual {
    min-height: 260px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cloud-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cloud-grid article {
    grid-column: auto;
  }

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

@media (max-width: 760px) {
  main {
    padding-top: 1.6rem;
  }

  main > section {
    margin-top: 3.2rem;
  }

  .site-header {
    position: static;
    border-radius: var(--radius-lg);
  }

  .feature-grid,
  .cloud-grid,
  .crate-grid {
    grid-template-columns: 1fr;
  }

  .cloud-grid article {
    grid-column: auto;
  }

  .crate-grid::before {
    display: none;
  }

  .terminal-tools {
    grid-template-columns: 1fr;
  }

  .code-file-label {
    width: 100%;
    margin-left: 0;
    margin-top: 0.2rem;
  }

  .quick-row {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}