:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --panel: #ffffff;
  --panel-2: #f6f8fb;
  --fg: #0d1117;
  --muted: #58636f;
  --border: #e3e8ef;
  /* GramPro brand: orange → red. Interactive colours are deepened so white text
     and body links clear WCAG AA against them. */
  --accent: #c8400f;
  --accent-2: #e2601a;
  --accent-3: #e12e39;
  --btn-a: #d8411a;
  --btn-b: #c0392b;
  --grad-a: #f7a01e;
  --grad-b: #ef4b23;
  --grad-c: #e12e39;
  --code-bg: #f5f7fa;
  --ok: #16a34a;
  --add: #15803d;
  --shadow: 0 24px 60px -24px rgba(15, 23, 42, 0.28);
  --radius: 14px;
  --w: 900px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #07080c;
    --panel: #0f1218;
    --panel-2: #12161e;
    --fg: #e9edf4;
    --muted: #97a3b4;
    --border: #1d232e;
    --accent: #ff9a5a;
    --accent-2: #ffb347;
    --accent-3: #ff6b5c;
    --btn-a: #e2551f;
    --btn-b: #cf3a33;
    --grad-a: #f9b23c;
    --grad-b: #f2632b;
    --grad-c: #e5384a;
    --code-bg: #0c1016;
    --ok: #4ade80;
    --add: #4ade80;
    --shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.85);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ── Ambient background ──────────────────────────────────── */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  width: 46vw;
  height: 46vw;
  min-width: 380px;
  min-height: 380px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}

.b1 {
  top: -16vw;
  left: -10vw;
  background: radial-gradient(circle at 30% 30%, var(--accent), transparent 68%);
  animation: drift1 26s ease-in-out infinite alternate;
}

.b2 {
  top: -8vw;
  right: -14vw;
  background: radial-gradient(circle at 60% 40%, var(--accent-2), transparent 68%);
  animation: drift2 32s ease-in-out infinite alternate;
}

.b3 {
  top: 52vh;
  left: 32vw;
  background: radial-gradient(circle at 50% 50%, var(--accent-3), transparent 70%);
  opacity: 0.3;
  animation: drift3 38s ease-in-out infinite alternate;
}

@media (prefers-color-scheme: dark) {
  .blob {
    opacity: 0.3;
  }

  .b3 {
    opacity: 0.18;
  }
}

/* Faint engineering grid, faded out towards the edges. */
.grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.6;
  mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 18%, transparent 76%);
  -webkit-mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 18%, transparent 76%);
}

@keyframes drift1 {
  to {
    transform: translate3d(9vw, 7vh, 0) scale(1.12);
  }
}

@keyframes drift2 {
  to {
    transform: translate3d(-8vw, 10vh, 0) scale(1.08);
  }
}

@keyframes drift3 {
  to {
    transform: translate3d(-12vw, -8vh, 0) scale(1.15);
  }
}

/* ── Top bar ─────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 24px;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand:hover {
  text-decoration: none;
}

.logo {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b) 55%, var(--grad-c));
  color: #fff;
  box-shadow: 0 6px 18px -6px color-mix(in srgb, var(--accent) 80%, transparent);
}

.logo svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.logo svg .solid {
  fill: currentColor;
  stroke: none;
}

.topbar nav {
  display: flex;
  gap: 20px;
  margin-left: auto;
  font-size: 0.93rem;
}

.topbar nav a {
  color: var(--muted);
  transition: color 0.15s ease;
}

.topbar nav a:hover {
  color: var(--fg);
  text-decoration: none;
}

/* ── Buttons ─────────────────────────────────────────────── */
.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--btn-a), var(--btn-b));
  color: #fff;
  font-weight: 600;
  font-size: 0.97rem;
  box-shadow: 0 10px 30px -12px color-mix(in srgb, var(--accent) 85%, transparent);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px -14px color-mix(in srgb, var(--accent) 90%, transparent);
  text-decoration: none;
}

.button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.button.small {
  padding: 7px 15px;
  font-size: 0.89rem;
}

.button.ghost {
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  color: var(--fg);
  border-color: var(--border);
  box-shadow: none;
  backdrop-filter: blur(8px);
}

.button.ghost:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 12px 30px -18px var(--accent);
}

.gh {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* ── Layout ──────────────────────────────────────────────── */
main {
  max-width: var(--w);
  margin: 0 auto;
  padding: 0 24px 40px;
}

section {
  margin: 72px 0;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(2.1rem, 5.4vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 680;
}

h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-size: 1.55rem;
  letter-spacing: -0.025em;
}

h3 {
  margin: 28px 0 8px;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 14px;
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  align-items: center;
  gap: 44px;
  margin: 72px 0 84px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 20px;
  padding: 5px 13px 5px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 75%, transparent);
  backdrop-filter: blur(8px);
  color: var(--muted);
  font-size: 0.83rem;
  font-weight: 550;
}

.ping {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ok);
  flex: none;
}

.ping::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--ok);
  animation: ping 2.4s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  0% {
    transform: scale(0.6);
    opacity: 0.9;
  }
  70%,
  100% {
    transform: scale(1.6);
    opacity: 0;
  }
}

.grad {
  background: linear-gradient(100deg, var(--accent), var(--accent-2) 45%, var(--accent-3) 75%, var(--accent));
  background-size: 260% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 9s linear infinite;
}

@keyframes shimmer {
  to {
    background-position: 260% 0;
  }
}

.lede {
  max-width: 54ch;
  font-size: 1.1rem;
  color: var(--muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.microcopy {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.86rem;
}

/* ── Hero product mock ───────────────────────────────────── */
.panel {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: float 9s ease-in-out infinite alternate;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent) 60%, transparent),
    transparent 42%,
    color-mix(in srgb, var(--accent-2) 50%, transparent)
  );
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  pointer-events: none;
}

@keyframes float {
  to {
    transform: translateY(-10px);
  }
}

.panel-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel-2) 80%, transparent);
}

.panel-bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--border);
}

.panel-bar span {
  margin-left: 8px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
}

.panel-body {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 16px 16px 20px;
  font-size: 0.86rem;
}

.bubble {
  align-self: flex-end;
  max-width: 88%;
  padding: 8px 13px;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 13px 13px 4px 13px;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
}

.row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.row b {
  font-weight: 620;
  flex: none;
}

.row code {
  padding: 1px 6px;
  color: var(--muted);
  font-size: 0.83em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: none;
  background: var(--ok);
}

.dot.live {
  background: var(--accent);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  50% {
    opacity: 0.25;
    transform: scale(0.8);
  }
}

.add {
  margin-left: auto;
  color: var(--add);
  font-style: normal;
  font-weight: 600;
  font-size: 0.82em;
}

.out {
  padding-left: 15px;
  color: var(--ok);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.8rem;
}

.summary {
  margin-top: 4px;
  padding-top: 11px;
  border-top: 1px dashed var(--border);
  color: var(--muted);
  font-size: 0.79rem;
}

.anim {
  opacity: 0;
  animation: rise 0.55s cubic-bezier(0.22, 1, 0.36, 1) var(--d, 0s) forwards;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ── Scroll reveal ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* ── Features ────────────────────────────────────────────── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 16px;
}

.features article {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel) 72%, transparent);
  backdrop-filter: blur(10px);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.features article:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: 0 20px 40px -26px var(--accent);
}

.features h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.features p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

/* ── Docs ────────────────────────────────────────────────── */
.step {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--btn-a), var(--btn-b));
  color: #fff;
  font-size: 0.88rem;
  font-weight: 650;
  flex: none;
  box-shadow: 0 8px 22px -12px var(--accent);
}

ul,
ol {
  margin: 0 0 14px;
  padding-left: 22px;
}

li {
  margin: 6px 0;
}

ul.tight li {
  margin: 4px 0;
  font-size: 0.93rem;
}

blockquote {
  margin: 18px 0;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  color: var(--muted);
  font-style: italic;
}

code {
  font-family: ui-monospace, SFMono-Regular, "Cascadia Mono", Consolas, monospace;
  font-size: 0.9em;
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--code-bg);
  /* Long identifiers (extension ids, settings keys) must not widen the page on phones. */
  overflow-wrap: anywhere;
}

pre {
  margin: 0 0 16px;
  padding: 16px 18px;
  overflow-x: auto;
  background: color-mix(in srgb, var(--code-bg) 88%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  line-height: 1.55;
  backdrop-filter: blur(6px);
}

pre code {
  padding: 0;
  background: none;
  font-size: 0.87rem;
}

pre .c {
  color: var(--muted);
}

kbd {
  font-family: inherit;
  font-size: 0.82em;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 6px;
  background: var(--panel-2);
}

.table {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  background: color-mix(in srgb, var(--panel) 65%, transparent);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.91rem;
}

th,
td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  background: color-mix(in srgb, var(--panel-2) 75%, transparent);
  font-weight: 620;
}

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

/* URLs stay on one line; the wrapper scrolls instead of breaking them mid-token. */
td:last-child code {
  white-space: nowrap;
  overflow-wrap: normal;
}

/* ── Source ──────────────────────────────────────────────── */
.source {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 32px;
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  backdrop-filter: blur(12px);
}

.source h2 {
  margin-top: 0;
}

.source p {
  color: var(--muted);
}

.source pre {
  margin-bottom: 0;
}

.source .actions {
  margin-top: 18px;
}

.repo-facts {
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.92rem;
}

.repo-facts li {
  position: relative;
  padding-left: 22px;
  margin: 10px 0;
}

.repo-facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--grad-b), var(--grad-c));
}

.repo-facts b {
  color: var(--fg);
  font-weight: 600;
}

/* ── Reference + CTA ─────────────────────────────────────── */
.cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(205px, 1fr));
  gap: 26px;
}

.cols h3 {
  margin-top: 0;
}

.cta {
  padding: 52px 28px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: radial-gradient(
      ellipse 60% 120% at 50% 0%,
      color-mix(in srgb, var(--accent) 16%, transparent),
      transparent 70%
    ),
    color-mix(in srgb, var(--panel) 70%, transparent);
  backdrop-filter: blur(12px);
}

.cta h2 {
  justify-content: center;
  margin-bottom: 22px;
  font-size: 1.7rem;
}

.cta .actions {
  justify-content: center;
  margin-top: 0;
}

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
  max-width: var(--w);
  margin: 0 auto;
  padding: 24px 24px 44px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

footer nav {
  display: flex;
  gap: 18px;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 860px) {
  .hero,
  .source {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 34px;
    margin: 48px 0 64px;
  }
}

@media (max-width: 640px) {
  .topbar nav {
    display: none;
  }

  section {
    margin: 52px 0;
  }

  .source {
    padding: 24px 20px;
  }

  .cta {
    padding: 40px 20px;
  }
}

/* Motion here is decoration: switch all of it off when the visitor asks for less. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  html {
    scroll-behavior: auto;
  }

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