/* Schema Generator — Warm Sand + Persimmon (Apple-inspired, not government).
   Chosen over sage-on-sand (too spa) and cool gray + blue (too corporate). */

@font-face {
  font-family: "Manrope";
  src: url("../fonts/manrope-latin-wght.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #f6f2eb;
  --surface: #fffcf8;
  --ink: #1c1917;
  --muted: #6f6963;
  --line: #e8e1d6;
  --accent: #b42318;
  --accent-hover: #8f1c13;
  --btn-bg: #b42318;
  --btn-hover: #8f1c13;
  --accent-soft: rgba(180, 35, 24, 0.1);
  --ok: #1f6b4a;
  --ok-bg: #e6f3ec;
  --warn: #8a3b16;
  --warn-bg: #f8e8dc;
  --code-bg: #1c1917;
  --code-ink: #f3eee8;
  --stamp-ink: #ffffff;
  --code-ok: #8fd0b0;
  --shadow: 0 16px 40px -24px rgba(28, 25, 23, 0.28);
  --shadow-hover: 0 22px 48px -22px rgba(28, 25, 23, 0.32);
  --glass-inset: inset 0 1px 0 rgba(255, 255, 255, 0.7);
  --radius: 18px;
  --radius-sm: 12px;
  --max: 1160px;
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
  accent-color: var(--accent);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161412;
    --surface: #211e1b;
    --ink: #f3eee8;
    --muted: #b4aea6;
    --line: #3a342e;
    --accent: #e89286;
    --accent-hover: #f0a090;
    --btn-bg: #b42318;
    --btn-hover: #8f1c13;
    --accent-soft: rgba(180, 35, 24, 0.2);
    --ok: #8fd0b0;
    --ok-bg: #1c3228;
    --warn: #f0b37a;
    --warn-bg: #3a2a1b;
    --code-bg: #0f0d0c;
    --code-ink: #f3eee8;
    --shadow: 0 18px 44px -20px rgba(0, 0, 0, 0.55);
    --shadow-hover: 0 24px 50px -18px rgba(0, 0, 0, 0.6);
    --glass-inset: inset 0 1px 0 rgba(255, 255, 255, 0.08);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #161412;
  --surface: #211e1b;
  --ink: #f3eee8;
  --muted: #b4aea6;
  --line: #3a342e;
  --accent: #e89286;
  --accent-hover: #f0a090;
  --btn-bg: #b42318;
  --btn-hover: #8f1c13;
  --accent-soft: rgba(180, 35, 24, 0.2);
  --ok: #8fd0b0;
  --ok-bg: #1c3228;
  --warn: #f0b37a;
  --warn-bg: #3a2a1b;
  --code-bg: #0f0d0c;
  --code-ink: #f3eee8;
  --shadow: 0 18px 44px -20px rgba(0, 0, 0, 0.55);
  --shadow-hover: 0 24px 50px -18px rgba(0, 0, 0, 0.6);
  --glass-inset: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  color-scheme: dark;
}

:root[data-theme="light"] { color-scheme: light; }

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  min-height: 100vh;
}

::selection {
  background: var(--accent-soft);
  color: var(--ink);
}

img { max-width: 100%; height: auto; }

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
a:hover { color: var(--accent-hover); }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--btn-bg);
  color: var(--stamp-ink);
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  z-index: 30;
}
.skip-link:hover,
.skip-link:focus {
  color: var(--stamp-ink);
  background: var(--btn-hover);
}
.skip-link:focus { top: 1rem; }

.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;
}

.wrap {
  width: min(var(--max), calc(100% - 2.4rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--line);
}

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 4.5rem;
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.logo:hover { color: inherit; }

.logo-svg { width: 32px; height: 32px; flex: none; overflow: visible; }
.logo-back { fill: #fffcf8; fill-opacity: 0.9; stroke: #b42318; stroke-opacity: 0.42; transform-box: fill-box; transform-origin: 50% 50%; transform: rotate(9deg); transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1); }
.logo:hover .logo-back, .logo:focus-visible .logo-back { transform: rotate(15deg) translate(0.6px, -0.6px); }
:root[data-theme="dark"] .logo-back { fill: #f3eee8; fill-opacity: 0.16; stroke: #e89286; stroke-opacity: 0.78; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .logo-back { fill: #f3eee8; fill-opacity: 0.16; stroke: #e89286; stroke-opacity: 0.78; } }
.logo-word { white-space: nowrap; letter-spacing: -0.03em; }
.logo-word b { font-weight: 760; }
.logo-word span { font-weight: 600; color: var(--muted); margin-left: 0.12em; }

.nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  flex-wrap: wrap;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
}
.nav a:hover,
.nav a[aria-current="page"] { color: var(--accent); }

.theme-toggle,
.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 650;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 1px 0 color-mix(in srgb, var(--ink) 4%, transparent);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.theme-toggle:hover,
.btn:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--btn-bg);
  border-color: transparent;
  color: var(--stamp-ink);
}
.btn-primary:hover {
  background: var(--btn-hover);
  color: var(--stamp-ink);
}
.btn.is-copied {
  background: var(--ok-bg);
  border-color: transparent;
  color: var(--ok);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 1.5rem 1.25rem;
  align-items: center;
  padding: 3.4rem 0 2rem;
  overflow-x: clip;
}

.hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  letter-spacing: -0.045em;
  line-height: 1.05;
  margin: 0 0 0.9rem;
  max-width: 14ch;
  font-weight: 750;
}

.lede {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 40ch;
  margin: 0 0 1.4rem;
}

.feature-row {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.feature-row li {
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 1.5rem;
  align-items: start;
  padding-bottom: 3rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem 1.45rem 1.65rem;
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}
.card:hover { box-shadow: var(--shadow-hover); }

.card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
}
.card-lead {
  margin: 0 0 1.2rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.05rem 0.95rem;
}

.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field-full { grid-column: 1 / -1; }

label,
.legend {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hint {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
}

input[type="text"],
input[type="tel"],
input[type="url"],
input[type="number"],
input[type="time"],
select,
textarea {
  font: inherit;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.68rem 0.8rem;
  width: 100%;
  font-variant-numeric: tabular-nums;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:hover,
select:hover,
textarea:hover { border-color: color-mix(in srgb, var(--ink) 22%, var(--line)); }

input:focus,
select:focus,
textarea:focus,
button:focus-visible,
a:focus-visible,
.preview-code:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 2px;
  border-color: var(--accent);
}

.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: var(--warn);
}
.geo-grid.has-error input { border-color: var(--warn); }
.field.is-valid input,
.field.is-valid select,
.field.is-valid textarea {
  border-color: color-mix(in srgb, var(--ok) 70%, var(--line));
}

.hours-block,
.geo-grid {
  grid-column: 1 / -1;
  display: grid;
  gap: 0.7rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}

.hours-block { container-type: inline-size; }
.hours-block .hint,
.geo-grid .hint { display: block; margin: 0.2rem 0 0; }
#hours-fields { display: grid; gap: 0.6rem; }

.hours-row {
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1fr) auto;
  grid-template-areas: "chip ranges actions";
  gap: 0.5rem 0.75rem;
  align-items: start;
}
.day-chip {
  grid-area: chip;
  display: grid;
  place-items: center;
  height: 2.75rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 700;
}
.day-chip abbr { text-decoration: none; }
.hours-row.is-closed .day-chip { background: var(--bg); color: var(--muted); }
.hours-ranges { grid-area: ranges; display: grid; gap: 0.5rem; min-width: 0; }
.hours-range { display: flex; align-items: center; gap: 0.4rem; }
.hours-range input[type="time"] { flex: 1 1 0; min-width: 0; }
.hours-sep { color: var(--muted); font-size: 0.9rem; }
.hours-closed {
  margin: 0;
  height: 2.75rem;
  display: flex;
  align-items: center;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.92rem;
}
.hours-actions { grid-area: actions; display: flex; gap: 0.15rem; }
.hours-block.has-error input[type="time"]:invalid { border-color: var(--warn); }

.icon-btn {
  appearance: none;
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.icon-btn:hover,
.icon-btn[aria-expanded="true"] { background: var(--bg); color: var(--ink); border-color: var(--line); }
.icon-btn svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.copy-menu {
  grid-column: 1 / -1;
  padding: 0.85rem 0.95rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg);
}
.copy-menu-title { margin: 0 0 0.6rem; font-size: 0.85rem; font-weight: 700; }
.copy-days { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.copy-day {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-weight: 600;
  cursor: pointer;
}
.copy-day:has(input:checked) { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.copy-day:has(input:disabled) { opacity: 0.6; cursor: default; }
.copy-day input { margin: 0; }
.copy-menu-actions { display: flex; gap: 0.5rem; margin-top: 0.8rem; }
.btn-small { padding: 0.4rem 0.95rem; font-size: 0.88rem; }

@container (max-width: 30rem) {
  .hours-row:not(.is-closed) {
    grid-template-columns: 3.5rem minmax(0, 1fr);
    grid-template-areas: "chip actions" "ranges ranges";
  }
  .hours-row:not(.is-closed) .hours-actions { justify-self: end; }
}
.geo-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

.preview-card { position: sticky; top: 5.2rem; container-type: inline-size; }

.preview-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.85rem;
}

.status-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  background: var(--bg);
  color: var(--muted);
}
.status-pill.is-ok { background: var(--ok-bg); color: var(--ok); }
.status-pill.is-warn { background: var(--warn-bg); color: var(--warn); }

.install-label { margin: 0 0 0.55rem; font-size: 0.92rem; font-weight: 650; }
.install-tabs {
  display: flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
}
.install-tabs [role="tab"] {
  appearance: none;
  flex: 1 1 auto;
  white-space: nowrap;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 650;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.install-tabs [role="tab"]:hover { color: var(--ink); }
.install-tabs [role="tab"][aria-selected="true"] {
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 1px 3px color-mix(in srgb, var(--ink) 14%, transparent);
}
@container (max-width: 24rem) {
  .install-tabs [role="tab"] { font-size: 0.8rem; padding: 0.5rem 0.55rem; }
}
.install-steps { font-size: 0.92rem; }
.install-steps p { margin: 0.8rem 0; }
.install-steps ol { margin: 0.8rem 0; padding-left: 1.25rem; }
.install-steps li + li { margin-top: 0.2rem; }

.code-block {
  border-radius: var(--radius-sm);
  background: var(--code-bg);
  overflow: hidden;
}
.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.45rem 0.5rem 0.45rem 1rem;
  border-bottom: 1px solid color-mix(in srgb, var(--code-ink) 12%, transparent);
}
.code-lang {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: color-mix(in srgb, var(--code-ink) 65%, var(--code-bg));
}
.code-copy {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--stamp-ink);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 650;
  min-height: 2.25rem;
  padding: 0.35rem 1rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.code-copy:hover { background: var(--btn-hover); }
.code-copy.is-copied {
  background: transparent;
  border-color: color-mix(in srgb, var(--code-ok) 45%, transparent);
  color: var(--code-ok);
}

.preview-code {
  margin: 0;
  padding: 0.85rem 1rem 0.85rem 0;
  counter-reset: ln;
  background: var(--code-bg);
  color: var(--code-ink);
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.55;
  overflow: auto;
  max-height: min(42vh, 26rem);
  white-space: pre-wrap;
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.preview-code .ln {
  display: block;
  position: relative;
  padding-left: 3rem;
}
.preview-code .ln::before {
  counter-increment: ln;
  content: counter(ln);
  position: absolute;
  left: 0;
  width: 2.1rem;
  text-align: right;
  color: color-mix(in srgb, var(--code-ink) 55%, var(--code-bg));
  user-select: none;
  -webkit-user-select: none;
}
.preview-code:focus-visible { outline-offset: -3px; }
pre::selection,
pre ::selection {
  background: color-mix(in srgb, var(--code-ink) 28%, transparent);
  color: var(--code-ink);
}

.hints { margin-top: 1rem; }
.hints ul { margin: 0.3rem 0 0; padding-left: 1.15rem; }
.hint-title, .hint-ok { margin: 0; font-size: 0.92rem; }
.hint-ok { color: var(--ok); }

.preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
  margin-top: 1rem;
}

.toast {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 40;
  background: var(--ink);
  color: var(--bg);
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font-weight: 650;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  max-width: calc(100% - 2.4rem);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.toast.is-on { opacity: 1; transform: translateY(0); }

.article, .blog-index, .agents, .not-found, .faq-block > * {
  max-width: 70ch;
}
.article, .blog-index, .agents, .not-found, .faq-block {
  padding: 2.5rem 0 1rem;
}

.article header h1,
.blog-index h1,
.agents h1,
.not-found h1 {
  letter-spacing: -0.04em;
  line-height: 1.12;
  margin: 0 0 0.65rem;
  font-size: clamp(1.9rem, 3.2vw, 2.7rem);
}

.meta { color: var(--muted); font-size: 0.92rem; margin: 0 0 1.4rem; }
.article p, .article li, .agents p, .agents li, .faq-block p { font-size: 1.05rem; }
.not-found-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.85rem 1.25rem; margin-top: 1.5rem; }
.not-found-actions .btn { text-decoration: none; }
.article h2, .agents h2, .faq-block h2 {
  margin-top: 2.15rem;
  margin-bottom: 0.55rem;
  letter-spacing: -0.03em;
}

.article-list {
  list-style: none;
  padding: 0;
  margin: 1.6rem 0 0;
  display: grid;
  gap: 0.85rem;
}
.article-list a {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.article-list a:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  color: inherit;
}
.article-list h2 { margin: 0 0 0.35rem; font-size: 1.15rem; }
.article-list p { margin: 0; color: var(--muted); }

.ad-slot {
  margin: 2rem 0;
  min-height: 110px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.faq-list { margin: 0; padding: 0; list-style: none; }
.faq-list + .faq-list, .faq-list li + li { margin-top: 1rem; }
.faq-list h2, .faq-list h3 { margin: 0 0 0.3rem; font-size: 1.25rem; }

.footer-inner { color: var(--muted); font-size: 0.9rem; }
.footer-inner p { margin: 0; }
.footer-meta {
  flex-basis: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.5rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
}

code { font-family: var(--mono); font-size: 0.9em; }

pre.snippet, .snippet {
  background: var(--code-bg);
  color: var(--code-ink);
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 1rem;
  overflow: auto;
  border-radius: var(--radius-sm);
  line-height: 1.5;
}


/* A1 hero: layered glassy perspective card stack.
   Fanned further than the mockup so the business card and pin stay readable. */
.hero-visual {
  --stack-w: 17.5rem;
  --stack-h: 13.1rem;
  --stack-scale: 1;
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  --fan-biz: translate3d(-8.1rem, 4.35rem, -90px) rotateZ(-10deg);
  --fan-pin: translate3d(-6.2rem, -2.85rem, 18px) rotateZ(-6deg);
  --fan-code: translate3d(7.35rem, -3.55rem, 96px) rotateZ(5deg);
  justify-self: center;
  width: 100%;
  max-width: 100%;
}

.hero-scene {
  perspective: 1100px;
  perspective-origin: 48% 48%;
  height: 28rem;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.hero-tilt {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  transform-style: preserve-3d;
  transform: rotateX(var(--tilt-x)) rotateY(var(--tilt-y));
  transition: transform 0.4s ease-out;
}

.hero-stack {
  position: relative;
  width: var(--stack-w);
  height: var(--stack-h);
  transform-style: preserve-3d;
  transform: rotateX(16deg) rotateY(-24deg) rotateZ(6deg) scale(var(--stack-scale));
}

.hero-stack-card {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--stack-w);
  height: var(--stack-h);
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  border: 1px solid color-mix(in srgb, var(--line) 90%, transparent);
  box-shadow: var(--glass-inset, inset 0 1px 0 rgba(255, 255, 255, 0.7));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1.35rem 1.45rem;
  color: var(--ink);
  backface-visibility: hidden;
}

.hero-stack-name {
  margin: 0 0 0.4rem;
  font-size: 1.15rem;
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.2;
  max-width: 8.6rem;
}

.hero-stack-meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.hero-stack-biz {
  transform: var(--fan-biz);
}

.hero-stack-pin {
  width: 8.25rem;
  height: 8.25rem;
  padding: 0;
  display: grid;
  place-items: center;
  transform: var(--fan-pin);
}

.hero-pin-svg {
  width: 4.6rem;
  height: 4.6rem;
  display: block;
}

.hero-stack-code {
  transform: var(--fan-code);
  background: var(--code-bg);
  color: var(--code-ink);
  border-color: color-mix(in srgb, var(--code-bg) 88%, var(--line));
  box-shadow: 0 22px 36px -18px color-mix(in srgb, var(--ink) 50%, transparent);
}

.hero-stack-kicker {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-stack-code pre {
  margin: 0.7rem 0 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.5;
  white-space: pre;
}

@media (prefers-reduced-motion: reduce) {
  .hero-tilt { transition: none; }
}

@media (max-width: 1180px) and (min-width: 901px) {
  .hero-visual { --stack-scale: 0.82; }
  .hero-scene { height: 24rem; }
}

@media (max-width: 900px) {
  .layout, .form-grid, .geo-fields { grid-template-columns: 1fr; }
  .preview-card { position: static; }
  .hero {
    grid-template-columns: 1fr;
    padding-top: 2.1rem;
    gap: 0.85rem;
  }
  .hero h1 { max-width: none; }
  .hero-visual {
    --stack-scale: 0.72;
    --fan-biz: translate3d(-7.6rem, 4.1rem, -90px) rotateZ(-10deg);
    --fan-pin: translate3d(-5.7rem, -2.6rem, 18px) rotateZ(-6deg);
    --fan-code: translate3d(6.6rem, -3.2rem, 96px) rotateZ(5deg);
  }
  .hero-scene { height: 20.5rem; }
}

@media (max-width: 640px) {
  .site-header { position: static; }
  .header-inner { padding: 0.75rem 0; row-gap: 0.4rem; }
  .nav { gap: 0.25rem 1rem; }
  .nav a { padding-block: 0.6rem; }
  .theme-toggle { padding: 0.45rem 0.9rem; }
  .footer-inner { padding: 1.4rem 0; }
}

@media (max-width: 480px) {
  .hero-visual {
    --stack-scale: 0.64;
    --fan-biz: translate3d(-7.2rem, 3.9rem, -90px) rotateZ(-9deg);
    --fan-pin: translate3d(-5.3rem, -2.4rem, 18px) rotateZ(-6deg);
    --fan-code: translate3d(6.1rem, -3rem, 96px) rotateZ(5deg);
  }
  .hero-scene { height: 18.25rem; }
}

input::placeholder,
textarea::placeholder { color: var(--muted); opacity: 1; }