/* ==========================================================================
   Design tokens — shared by the marketing site, the app and the admin console
   so the whole product reads as one thing.
   ========================================================================== */

:root {
  color-scheme: light dark;

  /* Neutrals: a slightly cool grey ramp, so the blue accent never looks muddy. */
  --n-0: #ffffff;
  --n-25: #fbfcfd;
  --n-50: #f6f8fa;
  --n-100: #eef1f5;
  --n-200: #dfe4ec;
  --n-300: #c5cddb;
  --n-400: #97a3b6;
  --n-500: #6b7887;
  --n-600: #4d5866;
  --n-700: #374150;
  --n-800: #212936;
  --n-900: #131a24;
  --n-950: #0b1017;

  --accent-50: #eef4ff;
  --accent-100: #dbe6ff;
  --accent-300: #93b4ff;
  --accent-500: #2f6bff;
  --accent-600: #1d4ed8;
  --accent-700: #1740ad;

  --ok-fg: #0d7a4e;
  --ok-bg: #e9f8f0;
  --ok-br: #a7e0c4;
  --warn-fg: #8a5a00;
  --warn-bg: #fdf5e4;
  --warn-br: #f0d69a;
  --danger-fg: #ba1b1b;
  --danger-bg: #fdefee;
  --danger-br: #f4bdbb;

  /* Semantic aliases — components only ever reference these. */
  --bg: var(--n-50);
  --bg-elevated: var(--n-0);
  --bg-sunken: var(--n-100);
  --surface: var(--n-0);
  --surface-2: var(--n-50);
  --border: var(--n-200);
  --border-strong: var(--n-300);
  --text: var(--n-900);
  --text-muted: var(--n-500);
  --text-subtle: var(--n-400);
  --accent: var(--accent-600);
  --accent-hover: var(--accent-700);
  --accent-soft: var(--accent-50);
  --on-accent: #ffffff;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgb(16 24 40 / 0.05);
  --shadow: 0 1px 3px rgb(16 24 40 / 0.1), 0 1px 2px rgb(16 24 40 / 0.06);
  --shadow-md: 0 4px 8px -2px rgb(16 24 40 / 0.1), 0 2px 4px -2px rgb(16 24 40 / 0.06);
  --shadow-lg: 0 12px 16px -4px rgb(16 24 40 / 0.08), 0 4px 6px -2px rgb(16 24 40 / 0.03);

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --step--1: clamp(0.82rem, 0.79rem + 0.13vw, 0.88rem);
  --step-0: clamp(0.95rem, 0.92rem + 0.15vw, 1rem);
  --step-1: clamp(1.1rem, 1.04rem + 0.3vw, 1.27rem);
  --step-2: clamp(1.32rem, 1.2rem + 0.6vw, 1.68rem);
  --step-3: clamp(1.6rem, 1.36rem + 1.2vw, 2.32rem);
  --step-4: clamp(1.95rem, 1.5rem + 2.2vw, 3.2rem);

  --container: 1140px;
  --container-narrow: 760px;
  --header-h: 64px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: var(--n-950);
    --bg-elevated: var(--n-900);
    --bg-sunken: #070b10;
    --surface: var(--n-900);
    --surface-2: var(--n-800);
    --border: #26303d;
    --border-strong: #35404f;
    --text: #e8eef6;
    --text-muted: #96a3b4;
    --text-subtle: #6d7c8d;
    --accent: #6f9bff;
    --accent-hover: #8fb2ff;
    --accent-soft: #14213a;
    --on-accent: #06101f;

    --ok-fg: #5fd6a0;
    --ok-bg: #0d2a1f;
    --ok-br: #1c5540;
    --warn-fg: #f0c675;
    --warn-bg: #2c2312;
    --warn-br: #5b4823;
    --danger-fg: #f79f9b;
    --danger-bg: #2d1615;
    --danger-br: #63302d;

    --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.4);
    --shadow: 0 1px 3px rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 10px rgb(0 0 0 / 0.5);
    --shadow-lg: 0 16px 30px rgb(0 0 0 / 0.55);
  }
}

:root[data-theme="dark"] {
  --bg: var(--n-950);
  --bg-elevated: var(--n-900);
  --bg-sunken: #070b10;
  --surface: var(--n-900);
  --surface-2: var(--n-800);
  --border: #26303d;
  --border-strong: #35404f;
  --text: #e8eef6;
  --text-muted: #96a3b4;
  --text-subtle: #6d7c8d;
  --accent: #6f9bff;
  --accent-hover: #8fb2ff;
  --accent-soft: #14213a;
  --on-accent: #06101f;
  --ok-fg: #5fd6a0;
  --ok-bg: #0d2a1f;
  --ok-br: #1c5540;
  --warn-fg: #f0c675;
  --warn-bg: #2c2312;
  --warn-br: #5b4823;
  --danger-fg: #f79f9b;
  --danger-bg: #2d1615;
  --danger-br: #63302d;
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.4);
  --shadow: 0 1px 3px rgb(0 0 0 / 0.5);
  --shadow-md: 0 4px 10px rgb(0 0 0 / 0.5);
  --shadow-lg: 0 16px 30px rgb(0 0 0 / 0.55);
}

/* ==========================================================================
   Reset
   ========================================================================== */

*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

@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 {
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}

img, svg, video { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 650;
  letter-spacing: -0.021em;
  text-wrap: balance;
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }
p { text-wrap: pretty; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-hover); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

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

/* Screen-reader-only text, used for the landmarks crawlers and AT rely on. */
.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;
}

.skip-link {
  position: absolute;
  left: 8px; top: -60px;
  z-index: 200;
  padding: 0.6rem 1rem;
  background: var(--accent);
  color: var(--on-accent);
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 8px; color: var(--on-accent); }

/* ==========================================================================
   Layout primitives
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}
.container-narrow { max-width: var(--container-narrow); }

.stack > * + * { margin-top: var(--stack-gap, 1rem); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--cluster-gap, 0.75rem); align-items: center; }
.grid { display: grid; gap: var(--grid-gap, 1.25rem); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); }

.section { padding-block: clamp(3rem, 8vw, 6rem); }
.section-sm { padding-block: clamp(2rem, 5vw, 3.5rem); }
.section-head { max-width: 62ch; margin-inline: auto; text-align: center; margin-bottom: clamp(2rem, 5vw, 3rem); }
.section-head p { color: var(--text-muted); font-size: var(--step-1); margin-top: 0.75rem; }

.eyebrow {
  display: inline-block;
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.lede { font-size: var(--step-1); color: var(--text-muted); }
.muted { color: var(--text-muted); }
.subtle { color: var(--text-subtle); }
.mono { font-family: var(--font-mono); font-size: 0.9em; }
.center { text-align: center; }
.nowrap { white-space: nowrap; }
.tabular { font-variant-numeric: tabular-nums; }

/* ==========================================================================
   Components
   ========================================================================== */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.15rem, 2.5vw, 1.6rem);
}
.card-flush { padding: 0; overflow: hidden; }
.card-hover { transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease; }
.card-hover:hover { border-color: var(--border-strong); box-shadow: var(--shadow-md); transform: translateY(-2px); }

.btn {
  --btn-bg: var(--surface);
  --btn-fg: var(--text);
  --btn-br: var(--border-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  font-size: var(--step-0);
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius);
  border: 1px solid var(--btn-br);
  background: var(--btn-bg);
  color: var(--btn-fg);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.15s ease, border-color 0.15s ease, opacity 0.15s ease;
}
.btn:hover { color: var(--btn-fg); background: color-mix(in srgb, var(--btn-bg) 92%, var(--text)); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; }

.btn-primary { --btn-bg: var(--accent); --btn-fg: var(--on-accent); --btn-br: var(--accent); }
.btn-primary:hover { --btn-bg: var(--accent-hover); color: var(--on-accent); }
.btn-ghost { --btn-bg: transparent; --btn-br: transparent; }
.btn-ghost:hover { background: var(--surface-2); }
.btn-outline { --btn-bg: transparent; }
.btn-danger { --btn-bg: var(--danger-bg); --btn-fg: var(--danger-fg); --btn-br: var(--danger-br); }
.btn-lg { padding: 0.8rem 1.5rem; font-size: var(--step-1); border-radius: var(--radius); }
.btn-sm { padding: 0.38rem 0.7rem; font-size: var(--step--1); }
.btn-block { width: 100%; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.14rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border: 1px solid transparent;
}
.badge-ok { color: var(--ok-fg); background: var(--ok-bg); border-color: var(--ok-br); }
.badge-warn { color: var(--warn-fg); background: var(--warn-bg); border-color: var(--warn-br); }
.badge-danger { color: var(--danger-fg); background: var(--danger-bg); border-color: var(--danger-br); }
.badge-neutral { color: var(--text-muted); background: var(--surface-2); border-color: var(--border); }
.badge-accent { color: var(--accent); background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 30%, transparent); }

.note {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: var(--step--1);
}
.note-ok { color: var(--ok-fg); background: var(--ok-bg); border-color: var(--ok-br); }
.note-warn { color: var(--warn-fg); background: var(--warn-bg); border-color: var(--warn-br); }
.note-danger { color: var(--danger-fg); background: var(--danger-bg); border-color: var(--danger-br); }

/* Forms */
.field { display: block; margin-bottom: 1rem; }
.field > label,
.label {
  display: block;
  font-size: var(--step--1);
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text);
}
.hint { font-size: var(--step--1); color: var(--text-muted); margin-top: 0.3rem; }

.input, input[type="text"], input[type="email"], input[type="password"],
input[type="number"], input[type="search"], select, textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input:focus, input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}
input::placeholder, textarea::placeholder { color: var(--text-subtle); }
input[type="checkbox"], input[type="radio"] { width: auto; accent-color: var(--accent); }

.checkbox {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: var(--step--1);
  font-weight: 500;
  cursor: pointer;
}
.checkbox input { margin-top: 0.25rem; flex: none; }

/* Tables */
.table-wrap { overflow-x: auto; border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: var(--step--1); }
th, td { text-align: left; padding: 0.65rem 0.8rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
thead th {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: var(--surface-2);
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 1;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--surface-2); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* ==========================================================================
   Site chrome
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg-elevated) 88%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .container { display: flex; align-items: center; gap: 1.5rem; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}
.brand:hover { color: var(--text); }
.brand-mark {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(140deg, var(--accent) 0%, #7c3aed 100%);
  display: grid; place-items: center;
  color: #fff; font-size: 15px;
  flex: none;
}

.site-nav { display: flex; gap: 0.35rem; align-items: center; margin-left: auto; }
.site-nav a:not(.btn) {
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: var(--step--1);
  font-weight: 550;
}
.site-nav a:not(.btn):hover { color: var(--text); background: var(--surface-2); }
.site-nav a[aria-current="page"] { color: var(--text); background: var(--surface-2); }

.nav-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0.4rem 0.55rem; }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h); left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    padding: 0.75rem clamp(1rem, 4vw, 2rem) 1.25rem;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
  }
  .site-nav.open { display: flex; }
  .site-nav .btn { width: 100%; margin-top: 0.4rem; }
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
  padding-block: clamp(2.5rem, 6vw, 4rem) 2rem;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  margin-bottom: 2.5rem;
}
.footer-grid h3 {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
  font-weight: 700;
}
.footer-grid ul { list-style: none; padding: 0; display: grid; gap: 0.5rem; }
.footer-grid a { color: var(--text-muted); text-decoration: none; font-size: var(--step--1); }
.footer-grid a:hover { color: var(--text); text-decoration: underline; }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: 1rem;
  justify-content: space-between; align-items: center;
  padding-top: 1.5rem; border-top: 1px solid var(--border);
  font-size: var(--step--1); color: var(--text-muted);
}

body { display: flex; flex-direction: column; }
main { flex: 1; }

/* Theme toggle */
.theme-toggle {
  display: inline-grid; place-items: center;
  width: 34px; height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
}
.theme-toggle:hover { background: var(--surface-2); color: var(--text); }

.hidden { display: none !important; }