/* Samran Themes — site stylesheet. No framework, no build step.
   Tokens first, then base, layout, components, pages, motion. Dark scheme follows the system. */

/* ---------- tokens ---------- */
:root {
  color-scheme: light dark;
  --paper: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #eaedf2;
  --ink: #0b1220;
  --ink-2: #2a3444;
  --muted: #5b6472;
  --line: #d9dee5;
  --line-strong: #b9c2cf;
  --accent: #1f3dff;
  --accent-ink: #0b1fa6;
  --accent-soft: #e7ebff;
  --ok: #0f7b4b;
  --ok-soft: #dff5ea;
  --warn: #9a5b00;
  --warn-soft: #fff1d6;
  --err: #b42318;
  --err-soft: #fde8e6;
  --shadow-1: 0 1px 2px rgb(11 18 32 / 0.06), 0 1px 1px rgb(11 18 32 / 0.04);
  --shadow-2: 0 12px 32px rgb(11 18 32 / 0.10), 0 2px 6px rgb(11 18 32 / 0.06);
  --shadow-3: 0 30px 70px rgb(11 18 32 / 0.18);
  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 22px;
  --radius-pill: 999px;
  --font-display: "Bricolage Grotesque", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Manrope", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text-xs: 0.8125rem;
  --text-s: 0.9375rem;
  --text-m: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-l: clamp(1.125rem, 1.05rem + 0.4vw, 1.25rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1.2vw, 2rem);
  --text-2xl: clamp(2rem, 1.5rem + 2.4vw, 3.25rem);
  --text-3xl: clamp(2.75rem, 1.9rem + 4.2vw, 5rem);
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --container: 72rem;
  --measure: 62ch;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 160ms;
  --dur-base: 320ms;
  --dur-slow: 640ms;
  --header-h: 4.25rem;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0b1220;
    --surface: #121a2b;
    --surface-2: #182236;
    --ink: #eef2f7;
    --ink-2: #c9d2df;
    --muted: #9aa5b5;
    --line: #243049;
    --line-strong: #34425f;
    --accent: #6d85ff;
    --accent-ink: #b7c3ff;
    --accent-soft: #1a2450;
    --ok: #4fd39a;
    --ok-soft: #10301f;
    --warn: #ffc55c;
    --warn-soft: #3a2a08;
    --err: #ff8a80;
    --err-soft: #3d1512;
    --shadow-1: 0 1px 2px rgb(0 0 0 / 0.4);
    --shadow-2: 0 12px 32px rgb(0 0 0 / 0.45);
    --shadow-3: 0 30px 70px rgb(0 0 0 / 0.6);
  }
}
@media (prefers-reduced-motion: reduce) {
  :root { --dur-fast: 0ms; --dur-base: 0ms; --dur-slow: 0ms; }
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; interpolate-size: allow-keywords; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-m);
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.05; letter-spacing: -0.01em; margin: 0 0 var(--space-4); text-wrap: balance; font-variation-settings: "wdth" 100; }
h1 { font-size: var(--text-3xl); font-weight: 800; letter-spacing: -0.03em; }
h2 { font-size: var(--text-2xl); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: var(--text-xl); font-weight: 700; }
h4 { font-size: var(--text-l); font-weight: 700; }
p { margin: 0 0 var(--space-4); max-width: var(--measure); text-wrap: pretty; }
a { color: var(--accent-ink); text-decoration-thickness: 1px; text-underline-offset: 0.18em; transition: color var(--dur-fast) var(--ease-standard); }
a:hover { color: var(--accent); }
code, kbd, pre { font-family: var(--font-mono); font-size: 0.9em; }
code { background: var(--surface-2); padding: 0.1em 0.4em; border-radius: 6px; }
pre { background: var(--ink); color: #eef2f7; padding: var(--space-4) var(--space-5); border-radius: var(--radius-m); overflow-x: auto; line-height: 1.5; }
@media (prefers-color-scheme: dark) { pre { background: #050912; } }
hr { border: 0; border-top: 1px solid var(--line); margin: var(--space-7) 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent); color: #fff; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; inset-inline-start: var(--space-4); top: -100%; z-index: 100; padding: var(--space-3) var(--space-4); background: var(--ink); color: var(--paper); border-radius: var(--radius-s); font-weight: 600; text-decoration: none; }
.skip-link:focus { top: var(--space-4); }

/* ---------- layout ---------- */
.container { width: min(100% - 2 * var(--space-5), var(--container)); margin-inline: auto; }
@media (min-width: 48em) { .container { width: min(100% - 2 * var(--space-7), var(--container)); } }
.section { padding-block: var(--space-8); }
@media (min-width: 64em) { .section { padding-block: var(--space-9); } }
.section--tight { padding-block: var(--space-7); }
/* The ink band is dark in BOTH schemes, so its copy uses its own light token (--on-ink) rather than
   --paper, which becomes dark under the dark scheme. */
.section--ink { --ink-bg: #0b1220; --on-ink: #f4f5f7; --on-ink-muted: #b9c2cf; background: var(--ink-bg); color: var(--on-ink); }
.section--ink h2, .section--ink h3 { color: var(--on-ink); }
.section--ink p { color: var(--on-ink-muted); }
.section--ink a { color: var(--on-ink); }
@media (prefers-color-scheme: dark) { .section--ink { --ink-bg: #050912; } }
.card.card--on-ink { background: rgb(255 255 255 / 0.06); border-color: rgb(255 255 255 / 0.14); color: var(--on-ink); box-shadow: none; }
.card.card--on-ink:hover { background: rgb(255 255 255 / 0.1); border-color: rgb(255 255 255 / 0.28); box-shadow: none; }
.card.card--on-ink h3 { color: var(--on-ink); }
.card.card--on-ink p { color: var(--on-ink-muted); }
.card.card--on-ink .card__icon { background: rgb(255 255 255 / 0.12); color: #c7d0ff; }
.section-head { max-width: 46rem; margin-bottom: var(--space-6); }
.section-head p { font-size: var(--text-l); color: var(--muted); }
.section--ink .section-head p { color: var(--on-ink-muted); }
.section--ink .section-head .eyebrow { color: #c7d0ff; }
.eyebrow { display: inline-flex; align-items: center; gap: var(--space-2); font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-ink); margin-bottom: var(--space-4); }
.eyebrow::before { content: ""; width: 1.75rem; height: 2px; background: currentColor; border-radius: 2px; }
.section--ink .eyebrow { color: var(--accent); }
@media (prefers-color-scheme: dark) { .section--ink .eyebrow { color: var(--accent-ink); } }
.grid { display: grid; gap: var(--space-5); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.stack > * + * { margin-top: var(--space-4); }

/* ---------- buttons ---------- */
.button {
  --btn-bg: var(--ink); --btn-fg: var(--paper); --btn-line: var(--ink);
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 3rem; padding: 0.75rem 1.4rem;
  font: 600 var(--text-s) var(--font-body); letter-spacing: 0.01em;
  color: var(--btn-fg); background: var(--btn-bg); border: 1.5px solid var(--btn-line);
  border-radius: var(--radius-pill); text-decoration: none; cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard), box-shadow var(--dur-fast) var(--ease-standard);
}
.button:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); color: var(--btn-fg); }
.button:active { transform: translateY(0); box-shadow: var(--shadow-1); }
.button .icon { width: 1.1em; height: 1.1em; transition: transform var(--dur-base) var(--ease-out); }
.button:hover .icon { transform: translateX(4px); }
.button--accent { --btn-bg: var(--accent); --btn-fg: #fff; --btn-line: var(--accent); }
.button--ghost { --btn-bg: transparent; --btn-fg: var(--ink); --btn-line: var(--line-strong); }
.button--ghost:hover { --btn-line: var(--ink); background: var(--surface); }
.section--ink .button--ghost { --btn-fg: var(--on-ink); --btn-line: rgb(255 255 255 / 0.4); }
.section--ink .button--ghost:hover { --btn-line: var(--on-ink); background: rgb(255 255 255 / 0.1); }
.section--ink .eyebrow { color: #c7d0ff; }
.button--small { min-height: 2.5rem; padding: 0.5rem 1rem; font-size: var(--text-xs); }
.link-arrow { display: inline-flex; align-items: center; gap: var(--space-2); font-weight: 600; text-decoration: none; }
.link-arrow .icon { width: 1em; height: 1em; transition: transform var(--dur-base) var(--ease-out); }
.link-arrow:hover .icon { transform: translateX(4px); }
.link-underline { text-decoration: none; background-image: linear-gradient(currentColor, currentColor); background-size: 0% 1px; background-repeat: no-repeat; background-position: 0 100%; transition: background-size var(--dur-base) var(--ease-out); }
.link-underline:hover, .link-underline:focus-visible { background-size: 100% 1px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard);
}
.site-header.is-scrolled { border-bottom-color: var(--line); box-shadow: var(--shadow-1); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); min-height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: var(--space-3); text-decoration: none; color: var(--ink); font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; letter-spacing: -0.02em; }
.brand__mark { width: 2rem; height: 2rem; border-radius: 8px; background: var(--accent); display: grid; place-items: center; color: #fff; transition: transform var(--dur-base) var(--ease-out), border-radius var(--dur-base) var(--ease-out); }
.brand:hover .brand__mark { transform: rotate(-8deg) scale(1.06); border-radius: 12px; }
.brand__mark svg { width: 1.25rem; height: 1.25rem; }
.nav { display: none; align-items: center; gap: var(--space-5); }
.nav a { font-weight: 600; font-size: var(--text-s); color: var(--ink-2); text-decoration: none; padding: var(--space-2) 0; position: relative; }
.nav a::after { content: ""; position: absolute; inset-inline: 0; bottom: 0; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform var(--dur-base) var(--ease-out); border-radius: 2px; }
.nav a:hover::after, .nav a[aria-current="page"]::after { transform: scaleX(1); }
.nav a[aria-current="page"] { color: var(--ink); }
.header-actions { display: flex; align-items: center; gap: var(--space-3); }
.menu-toggle { display: inline-grid; place-items: center; width: 2.75rem; height: 2.75rem; border: 1.5px solid var(--line-strong); background: var(--surface); border-radius: var(--radius-pill); color: var(--ink); cursor: pointer; }
.menu-toggle svg { width: 1.25rem; height: 1.25rem; }
@media (min-width: 56em) { .nav { display: flex; } .menu-toggle { display: none; } }
.mobile-nav { position: fixed; inset: 0; z-index: 60; background: var(--paper); padding: var(--space-5); display: none; flex-direction: column; gap: var(--space-4); }
.mobile-nav[open] { display: flex; animation: fade-in var(--dur-base) var(--ease-out); }
.mobile-nav__top { display: flex; justify-content: space-between; align-items: center; }
.mobile-nav nav { display: grid; }
.mobile-nav a.nav-link { display: block; font-family: var(--font-display); font-size: var(--text-xl); font-weight: 700; text-decoration: none; color: var(--ink); padding: var(--space-4) 0; border-bottom: 1px solid var(--line); }
.mobile-nav a.nav-link[aria-current="page"] { color: var(--accent); }
.mobile-nav a.nav-link:hover { color: var(--accent); padding-inline-start: var(--space-2); transition: padding var(--dur-base) var(--ease-out), color var(--dur-fast); }
body[data-scroll-lock] { overflow: hidden; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: clip; padding-block: var(--space-8) var(--space-8); }
@media (min-width: 64em) { .hero { padding-block: var(--space-9) var(--space-9); } }
.hero__grid { display: grid; gap: var(--space-7); align-items: center; }
@media (min-width: 64em) { .hero__grid { grid-template-columns: 1.05fr 1fr; gap: var(--space-8); } }
.hero h1 { margin-bottom: var(--space-5); }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero__lede { font-size: var(--text-l); color: var(--muted); margin-bottom: var(--space-6); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.hero__meta { display: flex; flex-wrap: wrap; gap: var(--space-4) var(--space-6); margin-top: var(--space-6); padding-top: var(--space-5); border-top: 1px solid var(--line); }
.hero__meta dt { font-family: var(--font-mono); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.hero__meta dd { margin: var(--space-1) 0 0; font-family: var(--font-display); font-weight: 700; font-size: var(--text-xl); letter-spacing: -0.02em; }
.hero__visual { position: relative; }
.device { border-radius: var(--radius-l); overflow: hidden; background: var(--surface); box-shadow: var(--shadow-3); border: 1px solid var(--line); transform: perspective(1400px) rotateY(-6deg) rotateX(2deg); transition: transform var(--dur-slow) var(--ease-out); }
.device:hover { transform: perspective(1400px) rotateY(0) rotateX(0) translateY(-4px); }
.device img { aspect-ratio: 4 / 5; object-fit: cover; object-position: top; width: 100%; }
.device--phone { position: absolute; right: -4%; bottom: -8%; width: 32%; border-radius: 26px; transform: perspective(1200px) rotateY(8deg) translateY(0); }
.device--phone:hover { transform: perspective(1200px) rotateY(0) translateY(-6px); }
.device--phone img { aspect-ratio: 9 / 19.5; }
@media (max-width: 40em) { .device--phone { display: none; } }
.hero__glow { position: absolute; inset: -20% -10% auto auto; width: 60vw; max-width: 46rem; aspect-ratio: 1; background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%); pointer-events: none; z-index: -1; filter: blur(10px); }

/* ---------- cards ---------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); padding: var(--space-6); box-shadow: var(--shadow-1); transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-standard); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: var(--line-strong); }
.card h3 { margin-bottom: var(--space-2); }
.card p { color: var(--muted); margin-bottom: 0; }
.card__icon { width: 3rem; height: 3rem; border-radius: 12px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-ink); margin-bottom: var(--space-4); transition: transform var(--dur-base) var(--ease-out), background-color var(--dur-fast); }
.card:hover .card__icon { transform: rotate(-6deg) scale(1.08); }
.card__icon svg { width: 1.4rem; height: 1.4rem; }
.theme-card { display: grid; gap: 0; overflow: hidden; padding: 0; }
@media (min-width: 56em) { .theme-card { grid-template-columns: 1.1fr 1fr; } }
.theme-card__media { position: relative; overflow: hidden; background: var(--surface-2); min-height: 18rem; }
.theme-card__media img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform var(--dur-slow) var(--ease-out); }
.theme-card:hover .theme-card__media img { transform: scale(1.03); }
.theme-card__body { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-4); }
@media (min-width: 64em) { .theme-card__body { padding: var(--space-7); } }
.theme-card__body h3 { font-size: var(--text-2xl); margin: 0; }
.theme-card__body p { max-width: none; }
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip { display: inline-flex; align-items: center; gap: 0.35em; padding: 0.3em 0.75em; border-radius: var(--radius-pill); background: var(--surface-2); color: var(--ink-2); font-size: var(--text-xs); font-weight: 600; border: 1px solid transparent; transition: border-color var(--dur-fast), background-color var(--dur-fast); }
.chip:hover { border-color: var(--line-strong); background: var(--surface); }
.chip--accent { background: var(--accent-soft); color: var(--accent-ink); }
.chip--ok { background: var(--ok-soft); color: var(--ok); }
.chip--soon { background: transparent; border: 1px dashed var(--line-strong); color: var(--muted); }
.stat { padding: var(--space-5); border-radius: var(--radius-m); background: var(--surface-2); }
.stat strong { display: block; font-family: var(--font-display); font-size: var(--text-2xl); letter-spacing: -0.02em; line-height: 1; margin-bottom: var(--space-2); }
.stat span { color: var(--muted); font-size: var(--text-s); }

/* ---------- steps ---------- */
.steps { counter-reset: step; display: grid; gap: var(--space-5); }
@media (min-width: 56em) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { position: relative; padding: var(--space-6); border-radius: var(--radius-l); background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-1); transition: box-shadow var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), border-color var(--dur-fast); }
.step:hover { box-shadow: var(--shadow-2); border-color: var(--line-strong); transform: translateY(-3px); }
.step::before { counter-increment: step; content: "0" counter(step); font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.12em; color: var(--accent-ink); display: block; margin-bottom: var(--space-4); }
.step h3 { font-size: var(--text-l); margin-bottom: var(--space-2); }
.step p { margin: 0; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: var(--space-3); max-width: 52rem; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-m); transition: border-color var(--dur-fast), box-shadow var(--dur-base) var(--ease-out); }
.faq details:hover { border-color: var(--line-strong); }
.faq details[open] { box-shadow: var(--shadow-1); border-color: var(--line-strong); }
.faq summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-4) var(--space-5); font-family: var(--font-display); font-weight: 700; font-size: var(--text-l); min-height: 3.25rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: 0 0 auto; width: 1.5rem; height: 1.5rem; border-radius: 50%; background: var(--surface-2); background-image: linear-gradient(currentColor, currentColor), linear-gradient(currentColor, currentColor); background-size: 0.75rem 2px, 2px 0.75rem; background-position: center; background-repeat: no-repeat; transition: transform var(--dur-base) var(--ease-out), background-color var(--dur-fast); }
.faq details[open] summary::after { transform: rotate(45deg); background-color: var(--accent-soft); }
.faq details::details-content { block-size: 0; overflow-y: clip; transition: block-size var(--dur-base) var(--ease-out), content-visibility var(--dur-base) allow-discrete; }
.faq details[open]::details-content { block-size: auto; }
.faq .faq__body { padding: 0 var(--space-5) var(--space-5); color: var(--muted); }
.faq .faq__body p:last-child { margin-bottom: 0; }

/* ---------- forms ---------- */
.form { display: grid; gap: var(--space-4); }
.form__row { display: grid; gap: var(--space-4); }
@media (min-width: 40em) { .form__row--2 { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: var(--space-2); }
.field label { font-weight: 600; font-size: var(--text-s); }
.field label small { font-weight: 400; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 3rem; padding: 0.75rem 1rem; font: inherit; color: var(--ink);
  background: var(--surface); border: 1.5px solid var(--line-strong); border-radius: var(--radius-m);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast), background-color var(--dur-fast);
}
.field textarea { min-height: 10rem; resize: vertical; }
.field select { appearance: none; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235b6472' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 6-6'/></svg>"); background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.75rem; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--ink-2); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--err); box-shadow: 0 0 0 4px var(--err-soft); }
.field__hint { font-size: var(--text-xs); color: var(--muted); }
.field__error { font-size: var(--text-xs); color: var(--err); display: none; }
.field[data-invalid] .field__error { display: block; }
.form__status { display: none; padding: var(--space-4) var(--space-5); border-radius: var(--radius-m); font-weight: 600; }
.form__status[data-state="ok"] { display: block; background: var(--ok-soft); color: var(--ok); }
.form__status[data-state="error"] { display: block; background: var(--err-soft); color: var(--err); }
.form__status[data-state="sending"] { display: block; background: var(--accent-soft); color: var(--accent-ink); }
.form .button[disabled] { opacity: 0.6; cursor: progress; transform: none; box-shadow: none; }
.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- docs ---------- */
.docs { display: grid; gap: var(--space-7); padding-block: var(--space-7) var(--space-9); }
@media (min-width: 64em) { .docs { grid-template-columns: 16rem minmax(0, 1fr); gap: var(--space-8); } }
.docs__nav { position: sticky; top: calc(var(--header-h) + var(--space-4)); align-self: start; display: none; }
@media (min-width: 64em) { .docs__nav { display: block; } }
.docs__nav ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.docs__nav a { display: block; padding: 0.4rem 0.75rem; border-radius: var(--radius-s); text-decoration: none; color: var(--muted); font-size: var(--text-s); font-weight: 500; border-inline-start: 2px solid transparent; transition: color var(--dur-fast), background-color var(--dur-fast), border-color var(--dur-fast); }
.docs__nav a:hover { color: var(--ink); background: var(--surface-2); }
.docs__nav a.is-active { color: var(--accent-ink); border-inline-start-color: var(--accent); background: var(--accent-soft); }
.docs__nav .docs__nav-group { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin: var(--space-4) 0 var(--space-2) 0.75rem; }
.docs__nav .docs__nav-group:first-child { margin-top: 0; }
.docs__nav-select { display: block; width: 100%; }
@media (min-width: 64em) { .docs__nav-select { display: none; } }
.docs__body { min-width: 0; }
.docs__body h2 { scroll-margin-top: calc(var(--header-h) + var(--space-5)); padding-top: var(--space-6); margin-top: var(--space-6); border-top: 1px solid var(--line); }
.docs__body h2:first-of-type { border-top: 0; margin-top: 0; padding-top: 0; }
.docs__body h3 { scroll-margin-top: calc(var(--header-h) + var(--space-5)); margin-top: var(--space-6); }
.docs__body h4 { scroll-margin-top: calc(var(--header-h) + var(--space-5)); }
.docs__body ul, .docs__body ol { padding-inline-start: 1.25rem; max-width: var(--measure); }
.docs__body li { margin-bottom: var(--space-2); }
.docs__body li::marker { color: var(--accent); }
.docs__intro { font-size: var(--text-l); color: var(--muted); }
.callout { display: grid; grid-template-columns: auto 1fr; gap: var(--space-3); padding: var(--space-4) var(--space-5); border-radius: var(--radius-m); background: var(--accent-soft); color: var(--ink); border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent); margin: var(--space-5) 0; max-width: var(--measure); }
.callout--warn { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 35%, transparent); }
.callout svg { width: 1.25rem; height: 1.25rem; margin-top: 0.2em; color: var(--accent-ink); }
.callout--warn svg { color: var(--warn); }
.callout p { margin: 0; max-width: none; }
.ref-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-m); padding: var(--space-5); margin: var(--space-4) 0; transition: border-color var(--dur-fast), box-shadow var(--dur-base) var(--ease-out); }
.ref-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow-1); }
.ref-card h4 { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-2) var(--space-3); margin-bottom: var(--space-2); }
.ref-card h4 code { font-size: 0.7em; font-weight: 400; color: var(--muted); }
.ref-card > p { color: var(--muted); font-size: var(--text-s); }
.ref-card details { margin-top: var(--space-3); }
.ref-card summary { cursor: pointer; font-weight: 600; font-size: var(--text-s); color: var(--accent-ink); list-style: none; display: inline-flex; align-items: center; gap: var(--space-2); }
.ref-card summary::-webkit-details-marker { display: none; }
.ref-card summary::before { content: ""; width: 0.5rem; height: 0.5rem; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(-45deg); transition: transform var(--dur-base) var(--ease-out); }
.ref-card details[open] summary::before { transform: rotate(45deg); }
.table-wrap { overflow-x: auto; margin-top: var(--space-3); border-radius: var(--radius-s); border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: var(--text-s); }
th, td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); background: var(--surface-2); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td code { white-space: nowrap; }
.pill-type { display: inline-block; font-family: var(--font-mono); font-size: 0.75rem; padding: 0.1em 0.5em; border-radius: 6px; background: var(--surface-2); color: var(--ink-2); }
.docs__toc-inline { display: grid; gap: var(--space-2); grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); margin: var(--space-4) 0 var(--space-6); padding: 0; list-style: none; }
.docs__toc-inline a { display: block; padding: var(--space-3) var(--space-4); border: 1px solid var(--line); border-radius: var(--radius-s); text-decoration: none; color: var(--ink); font-weight: 600; font-size: var(--text-s); background: var(--surface); transition: border-color var(--dur-fast), transform var(--dur-base) var(--ease-out); }
.docs__toc-inline a:hover { border-color: var(--accent); transform: translateY(-2px); }
.docs__toc-inline small { display: block; color: var(--muted); font-weight: 400; }
.changelog li { display: grid; grid-template-columns: 5rem 1fr; gap: var(--space-4); align-items: baseline; }
.changelog li span:first-child { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--accent-ink); }
.page-hero { padding-block: var(--space-8) var(--space-6); border-bottom: 1px solid var(--line); background: linear-gradient(180deg, color-mix(in srgb, var(--accent-soft) 60%, transparent), transparent); }
.page-hero h1 { font-size: var(--text-2xl); }
.page-hero p { font-size: var(--text-l); color: var(--muted); margin-bottom: 0; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: var(--space-2); font-size: var(--text-xs); color: var(--muted); margin-bottom: var(--space-4); }
.breadcrumbs a { color: inherit; }
.breadcrumbs li + li::before { content: "/"; margin-inline-end: var(--space-2); color: var(--line-strong); }
.breadcrumbs ol { list-style: none; display: contents; padding: 0; margin: 0; }

/* ---------- support ---------- */
.support { display: grid; gap: var(--space-7); padding-block: var(--space-7) var(--space-9); }
@media (min-width: 64em) { .support { grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: var(--space-8); } }
.support__aside { display: grid; gap: var(--space-4); align-self: start; }
@media (min-width: 64em) { .support__aside { position: sticky; top: calc(var(--header-h) + var(--space-4)); } }
.aside-card { padding: var(--space-5); border-radius: var(--radius-m); background: var(--surface); border: 1px solid var(--line); }
.aside-card h3 { font-size: var(--text-l); margin-bottom: var(--space-3); }
.aside-card ul { margin: 0; padding-inline-start: 1.1rem; color: var(--muted); font-size: var(--text-s); }
.aside-card li { margin-bottom: var(--space-2); }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding-block: var(--space-8) var(--space-6); background: var(--surface); }
.site-footer__grid { display: grid; gap: var(--space-6); }
@media (min-width: 48em) { .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.site-footer h4 { font-size: var(--text-xs); font-family: var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--space-3); }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-2); }
.site-footer a { color: var(--ink-2); text-decoration: none; font-size: var(--text-s); }
.site-footer a:hover { color: var(--accent); }
.site-footer p { color: var(--muted); font-size: var(--text-s); }
.site-footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid var(--line); font-size: var(--text-xs); color: var(--muted); }

/* ---------- 404 ---------- */
.notfound { min-height: 60vh; display: grid; place-items: center; text-align: center; padding-block: var(--space-9); }
.notfound h1 { font-size: clamp(5rem, 20vw, 12rem); line-height: 0.9; letter-spacing: -0.05em; color: var(--accent); margin-bottom: var(--space-4); }

/* ---------- motion ---------- */
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
/* Above the fold nothing waits for a script: the hero rises with a CSS animation that starts at
   first paint. Below the fold, .reveal elements are parked only once site.js has armed the
   observer (html.reveal-armed), so a page whose script never ran is simply visible. */
.rise { animation: rise var(--dur-slow) var(--ease-out) both; animation-delay: var(--rise-delay, 0ms); }
.rise:nth-child(2) { --rise-delay: 80ms; }
.rise:nth-child(3) { --rise-delay: 160ms; }
.rise:nth-child(4) { --rise-delay: 240ms; }
.rise:nth-child(5) { --rise-delay: 320ms; }
.hero__visual.rise { --rise-delay: 200ms; }
@media (prefers-reduced-motion: reduce) { .rise { animation: none; } }
.reveal-armed .reveal { opacity: 0; transform: translateY(18px); transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); transition-delay: var(--reveal-delay, 0ms); }
.reveal-armed .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal-armed .reveal { opacity: 1; transform: none; transition: none; } }
.grid > .reveal:nth-child(2) { --reveal-delay: 70ms; }
.grid > .reveal:nth-child(3) { --reveal-delay: 140ms; }
.grid > .reveal:nth-child(4) { --reveal-delay: 210ms; }
.grid > .reveal:nth-child(5) { --reveal-delay: 280ms; }
.grid > .reveal:nth-child(6) { --reveal-delay: 350ms; }
.steps > .reveal:nth-child(2) { --reveal-delay: 90ms; }
.steps > .reveal:nth-child(3) { --reveal-delay: 180ms; }
@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 240ms; }
@media (prefers-reduced-motion: reduce) { ::view-transition-old(root), ::view-transition-new(root) { animation: none; } }
.marquee { overflow: hidden; border-block: 1px solid var(--line); padding-block: var(--space-3); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee__track { display: flex; gap: var(--space-7); width: max-content; animation: marquee 40s linear infinite; font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee__track { animation: none; } }

/* ---------- toasts ---------- */
.toasts { position: fixed; inset-inline: 0; bottom: max(var(--space-4), env(safe-area-inset-bottom)); z-index: 90; display: grid; justify-items: center; gap: var(--space-2); padding-inline: var(--space-4); pointer-events: none; }
@media (min-width: 48em) { .toasts { inset-inline: auto var(--space-5); justify-items: end; padding-inline: 0; } }
.toast { pointer-events: auto; display: grid; grid-template-columns: auto 1fr auto; align-items: start; gap: var(--space-3); width: min(100%, 26rem); padding: var(--space-4) var(--space-4) var(--space-4) var(--space-5); border-radius: var(--radius-m); background: var(--ink); color: var(--paper); box-shadow: var(--shadow-3); border: 1px solid rgb(255 255 255 / 0.12); font-size: var(--text-s); line-height: 1.45; animation: toast-in var(--dur-base) var(--ease-out) both; }
@media (prefers-color-scheme: dark) { .toast { background: var(--surface-2); color: var(--ink); border-color: var(--line-strong); } }
.toast[data-leaving] { animation: toast-out var(--dur-base) var(--ease-standard) both; }
.toast__icon { width: 1.5rem; height: 1.5rem; border-radius: 50%; display: grid; place-items: center; flex: none; margin-top: 0.05rem; }
.toast__icon svg { width: 0.95rem; height: 0.95rem; }
.toast--ok .toast__icon { background: var(--ok); color: #fff; }
.toast--error .toast__icon { background: var(--err); color: #fff; }
.toast--info .toast__icon { background: var(--accent); color: #fff; }
.toast__text { margin: 0; max-width: none; }
.toast__text strong { display: block; font-family: var(--font-display); font-size: var(--text-m); margin-bottom: 0.15rem; }
.toast__close { appearance: none; border: 0; background: transparent; color: inherit; opacity: 0.7; width: 1.75rem; height: 1.75rem; border-radius: 50%; display: grid; place-items: center; cursor: pointer; transition: opacity var(--dur-fast), background-color var(--dur-fast); }
.toast__close:hover { opacity: 1; background: rgb(255 255 255 / 0.12); }
.toast__close svg { width: 0.9rem; height: 0.9rem; }
.toast__bar { grid-column: 1 / -1; height: 3px; border-radius: 3px; background: rgb(255 255 255 / 0.2); overflow: hidden; margin-top: var(--space-2); }
.toast__bar i { display: block; height: 100%; background: currentColor; opacity: 0.6; transform-origin: left; animation: toast-bar var(--toast-life, 6s) linear both; }
@keyframes toast-in { from { opacity: 0; transform: translateY(12px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateY(8px) scale(0.98); } }
@keyframes toast-bar { from { transform: scaleX(1); } to { transform: scaleX(0); } }
@media (prefers-reduced-motion: reduce) { .toast, .toast[data-leaving] { animation: none; } .toast__bar i { animation: none; } }

/* ---------- print ---------- */
@media print {
  .site-header, .site-footer, .docs__nav, .menu-toggle, .hero__visual, .marquee { display: none !important; }
  body { background: #fff; color: #000; }
  a { color: #000; text-decoration: underline; }
  .docs { display: block; }
  .ref-card details { display: block; }
  .ref-card details > * { display: block; }
}