/* =============================================================================
   Twindevs public site — base stylesheet
   Tokens sourced verbatim from twindevs-hub/.../v0.2/brand-kit.json
   Anti-generic rules: real marks, self-hosted Google Sans Flex, gradient only on
   the logomark + a thin accent strip + restrained hero accent. Neutral surfaces.
   ========================================================================== */

/* ---- Self-hosted variable font ------------------------------------------- */
@font-face {
  font-family: "Google Sans Flex";
  src: url("/assets/fonts/GoogleSansFlex-Variable.woff2") format("woff2"),
       url("/assets/fonts/GoogleSansFlex-Variable.ttf") format("truetype");
  font-weight: 1 1000;
  font-stretch: 25% 151%;
  font-style: normal;
  font-display: swap;
}

/* ---- Design tokens (light) ----------------------------------------------- */
:root {
  /* Brand gradient — marks/accents only */
  --brand-blue: #5B7FE1;
  --brand-purple: #A872C6;
  --brand-red: #E54B4B;
  --brand-gradient: linear-gradient(100deg, var(--brand-blue) 0%, var(--brand-purple) 52%, var(--brand-red) 100%);

  /* Surfaces & text (light) */
  --surface: #FFFFFF;
  --surface-subtle: #F7F8FA;
  --surface-raised: #FFFFFF;
  --surface-inset: #EEF1F5;
  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --outline: #D7DCE3;
  --divider: #E5E7EB;

  /* Interactive (accessibility-aware accents) */
  --primary: #5272CA;
  --on-primary: #FFFFFF;
  --secondary: #9263AC;
  --on-secondary: #FFFFFF;
  --danger: #D04444;
  --on-danger: #FFFFFF;
  --success: #16A34A;
  --on-success: #FFFFFF;
  --warning: #D97706;
  --on-warning: #0F172A;
  --info: #2563EB;
  --on-info: #FFFFFF;
  --focus-ring: #2563EB;
  --selection: #DBEAFE;

  /* Spacing — 4px grid */
  --space-1: 4px;  --space-2: 8px;  --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-8: 32px; --space-10: 40px;
  --space-12: 48px; --space-16: 64px; --space-20: 80px; --space-24: 96px;

  /* Radius */
  --radius-sm: 4px; --radius-md: 8px; --radius-lg: 12px; --radius-xl: 16px; --radius-pill: 999px;

  /* Elevation */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 12px 28px rgba(15, 23, 42, 0.16);

  /* Type scale */
  --font-sans: "Google Sans Flex", Roboto, -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --w-regular: 450; --w-medium: 600; --w-semibold: 650; --w-bold: 700;

  /* Motion */
  --dur-fast: 120ms; --dur-base: 180ms; --dur-slow: 260ms;
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --ease-emphasized: cubic-bezier(0.2, 0, 0, 1.2);

  /* Layout */
  --container: 1080px;
  --measure: 72ch;
  --header-h: 64px;

  color-scheme: light dark;
}

/* ---- Dark tokens --------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --surface: #0B0F17;
    --surface-subtle: #111827;
    --surface-raised: #0F172A;
    --surface-inset: #0B1220;
    --text-primary: #E5E7EB;
    --text-secondary: #9CA3AF;
    --text-muted: #6B7280;
    --outline: #2B3446;
    --divider: #1F2937;
    --primary: #5B7FE1;
    --on-primary: #0B0F17;
    --secondary: #A872C6;
    --on-secondary: #0B0F17;
    --danger: #E54B4B;
    --on-danger: #0B0F17;
    --success: #22C55E;
    --on-success: #0B0F17;
    --warning: #F59E0B;
    --on-warning: #0B0F17;
    --info: #60A5FA;
    --on-info: #0B0F17;
    --focus-ring: #60A5FA;
    --selection: #1E3A8A;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.40);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.55);
  }
}
/* Manual override */
[data-theme="dark"] {
  --surface: #0B0F17; --surface-subtle: #111827; --surface-raised: #0F172A; --surface-inset: #0B1220;
  --text-primary: #E5E7EB; --text-secondary: #9CA3AF; --text-muted: #6B7280;
  --outline: #2B3446; --divider: #1F2937;
  --primary: #5B7FE1; --on-primary: #0B0F17; --secondary: #A872C6; --on-secondary: #0B0F17;
  --danger: #E54B4B; --on-danger: #0B0F17; --success: #22C55E; --on-success: #0B0F17;
  --warning: #F59E0B; --on-warning: #0B0F17; --info: #60A5FA; --on-info: #0B0F17;
  --focus-ring: #60A5FA; --selection: #1E3A8A;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.40); --shadow-md: 0 4px 12px rgba(0,0,0,0.45); --shadow-lg: 0 12px 28px rgba(0,0,0,0.55);
}

/* ---- Reset & base -------------------------------------------------------- */
*, *::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); }
body {
  font-family: var(--font-sans);
  font-weight: var(--w-regular);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "tnum" 1;
  text-rendering: optimizeLegibility;
}
::selection { background: var(--selection); }
img, svg { display: block; max-width: 100%; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; border-radius: var(--radius-sm); }

h1, h2, h3, h4 { line-height: 1.2; font-weight: var(--w-semibold); letter-spacing: -0.01em; color: var(--text-primary); }
h1 { font-size: clamp(2rem, 1.4rem + 2.4vw, 3rem); font-weight: var(--w-bold); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }
p { color: var(--text-secondary); }

/* ---- Accessibility helpers ---------------------------------------------- */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--primary); color: var(--on-primary);
  padding: var(--space-2) var(--space-4); border-radius: 0 0 var(--radius-md) 0; font-weight: var(--w-medium);
}
.skip-link:focus { left: 0; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---- Brand accent strip (allowed gradient use) -------------------------- */
.brand-strip { height: 3px; background: var(--brand-gradient); }

/* ---- Layout -------------------------------------------------------------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--space-6); }
.section { padding-block: var(--space-20); }
.section--tight { padding-block: var(--space-12); }

/* ---- Header -------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--divider);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); }
.brand-link { display: inline-flex; align-items: center; gap: var(--space-3); }
.brand-link:hover { text-decoration: none; }
.brand-link img { height: 26px; width: auto; }
/* Logo theme swap (color mark on light, white mark on dark) */
.brand-logo--dark { display: none; }
.brand-logo--light { display: block; }
[data-theme="dark"] .brand-logo--light { display: none; }
[data-theme="dark"] .brand-logo--dark { display: block; }
[data-theme="light"] .brand-logo--light { display: block; }
[data-theme="light"] .brand-logo--dark { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .brand-logo--light { display: none; }
  :root:not([data-theme="light"]) .brand-logo--dark { display: block; }
}
.main-nav { display: flex; align-items: center; gap: var(--space-6); }
.main-nav a { color: var(--text-secondary); font-size: 0.95rem; font-weight: var(--w-medium); }
.main-nav a:hover { color: var(--text-primary); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: var(--space-3); }

.theme-toggle {
  display: inline-grid; place-items: center;
  width: 38px; height: 38px; border-radius: var(--radius-md);
  border: 1px solid var(--outline); background: var(--surface-raised); color: var(--text-secondary);
  cursor: pointer; transition: border-color var(--dur-fast) var(--ease-standard), color var(--dur-fast) var(--ease-standard);
}
.theme-toggle:hover { border-color: var(--primary); color: var(--text-primary); }
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* ---- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-family: inherit; font-size: 0.95rem; font-weight: var(--w-medium); line-height: 1;
  padding: var(--space-3) var(--space-5); border-radius: var(--radius-md);
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-standard), background var(--dur-fast) var(--ease-standard), border-color var(--dur-fast) var(--ease-standard);
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--primary); color: var(--on-primary); }
.btn--primary:hover { background: color-mix(in srgb, var(--primary) 88%, #000); }
.btn--secondary { background: var(--surface-raised); color: var(--text-primary); border-color: var(--outline); }
.btn--secondary:hover { border-color: var(--primary); color: var(--primary); }
.btn--ghost { background: transparent; color: var(--text-secondary); }
.btn--ghost:hover { color: var(--text-primary); background: var(--surface-subtle); }
.btn .mi { width: 1.15em; height: 1.15em; }

/* ---- Material Symbols (inline SVG) -------------------------------------- */
.mi { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.mi--accent { color: var(--primary); }

/* ---- Hero ---------------------------------------------------------------- */
.hero { position: relative; padding-block: var(--space-24) var(--space-20); overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 320px; z-index: -1;
  background:
    radial-gradient(60% 120% at 15% 0%, color-mix(in srgb, var(--brand-blue) 14%, transparent), transparent 60%),
    radial-gradient(50% 120% at 85% 0%, color-mix(in srgb, var(--brand-purple) 12%, transparent), transparent 60%);
}
.hero__eyebrow { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--text-muted); font-weight: var(--w-medium); font-size: 0.9rem; letter-spacing: 0.02em; }
.hero h1 { margin-block: var(--space-4) var(--space-5); max-width: 18ch; }
.hero__lede { font-size: 1.2rem; color: var(--text-secondary); max-width: 56ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-8); }

/* ---- Cards & grid -------------------------------------------------------- */
.grid { display: grid; gap: var(--space-5); }
.grid--products { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.card {
  background: var(--surface-raised); border: 1px solid var(--outline); border-radius: var(--radius-lg);
  padding: var(--space-6); box-shadow: var(--shadow-sm);
  transition: border-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-standard);
}
.card:hover { border-color: color-mix(in srgb, var(--primary) 50%, var(--outline)); box-shadow: var(--shadow-md); }
.card__icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: var(--radius-md); background: var(--surface-inset); color: var(--primary); margin-bottom: var(--space-4); }
.card h3 { font-size: 1.1rem; margin-bottom: var(--space-2); }
.card p { font-size: 0.95rem; }
.card__tag { font-size: 0.8rem; color: var(--text-muted); font-weight: var(--w-medium); }

.section-head { max-width: 60ch; margin-bottom: var(--space-10); }
.section-head .eyebrow { color: var(--primary); font-weight: var(--w-semibold); font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; }
.section-head h2 { margin-top: var(--space-2); }
.section-head p { margin-top: var(--space-3); font-size: 1.05rem; }

/* ---- Notice / callout ---------------------------------------------------- */
.notice {
  display: flex; gap: var(--space-3); align-items: flex-start;
  padding: var(--space-4) var(--space-5); border-radius: var(--radius-lg);
  border: 1px solid var(--outline); background: var(--surface-subtle); color: var(--text-secondary);
}
.notice .mi { margin-top: 2px; color: var(--primary); }
.notice strong { color: var(--text-primary); }
.notice--info { border-color: color-mix(in srgb, var(--info) 40%, var(--outline)); background: color-mix(in srgb, var(--info) 7%, var(--surface)); }
.notice--success { border-color: color-mix(in srgb, var(--success) 40%, var(--outline)); background: color-mix(in srgb, var(--success) 8%, var(--surface)); }
.notice--success .mi { color: var(--success); }
.notice--warning { border-color: color-mix(in srgb, var(--warning) 45%, var(--outline)); background: color-mix(in srgb, var(--warning) 9%, var(--surface)); }
.notice--warning .mi { color: var(--warning); }

/* ---- Chips / badges ------------------------------------------------------ */
.chip { display: inline-flex; align-items: center; gap: var(--space-1); padding: var(--space-1) var(--space-3); border-radius: var(--radius-pill); font-size: 0.8rem; font-weight: var(--w-medium); background: var(--surface-inset); color: var(--text-secondary); }
.chip--success { background: color-mix(in srgb, var(--success) 16%, var(--surface)); color: color-mix(in srgb, var(--success) 72%, #000); }
[data-theme="light"] .chip--success { color: color-mix(in srgb, var(--success) 72%, #000); }
[data-theme="dark"] .chip--success { color: color-mix(in srgb, var(--success) 45%, #fff); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .chip--success { color: color-mix(in srgb, var(--success) 45%, #fff); } }

/* ---- Category list (consent page) --------------------------------------- */
.cat-list { display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); margin-top: var(--space-4); }
.cat-list li { list-style: none; display: flex; gap: var(--space-3); align-items: flex-start; padding: var(--space-4); border: 1px solid var(--outline); border-radius: var(--radius-md); background: var(--surface-raised); }
.cat-list .mi { color: var(--primary); margin-top: 1px; }
.cat-list b { display: block; color: var(--text-primary); font-weight: var(--w-semibold); font-size: 0.95rem; }
.cat-list span { color: var(--text-muted); font-size: 0.88rem; }

/* ---- Sample SMS bubble --------------------------------------------------- */
.sms { font-family: var(--font-mono); font-size: 0.88rem; line-height: 1.5; color: var(--text-primary);
  background: var(--surface-inset); border: 1px solid var(--outline); border-radius: var(--radius-md) var(--radius-md) var(--radius-md) var(--radius-sm);
  padding: var(--space-3) var(--space-4); max-width: 52ch; margin-block: var(--space-2); }

/* ---- Prose (legal pages) ------------------------------------------------- */
.prose { max-width: var(--measure); }
.prose > * + * { margin-top: var(--space-4); }
.prose h2 { margin-top: var(--space-10); padding-top: var(--space-4); border-top: 1px solid var(--divider); }
.prose h2:first-of-type { border-top: 0; padding-top: 0; }
.prose h3 { margin-top: var(--space-6); }
.prose ul, .prose ol { padding-left: var(--space-6); color: var(--text-secondary); }
.prose li + li { margin-top: var(--space-2); }
.prose a { text-decoration: underline; text-underline-offset: 2px; }
.prose code { font-family: var(--font-mono); font-size: 0.9em; background: var(--surface-inset); padding: 1px 6px; border-radius: var(--radius-sm); }
.page-meta { color: var(--text-muted); font-size: 0.9rem; }

/* ---- Tables -------------------------------------------------------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--outline); border-radius: var(--radius-lg); }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { text-align: left; padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--divider); vertical-align: top; }
thead th { background: var(--surface-subtle); color: var(--text-primary); font-weight: var(--w-semibold); }
tbody tr:last-child td { border-bottom: 0; }

/* ---- Page hero (interior) ------------------------------------------------ */
.page-hero { padding-block: var(--space-16) var(--space-8); border-bottom: 1px solid var(--divider); }
.page-hero .eyebrow { color: var(--primary); font-weight: var(--w-semibold); font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; }
.page-hero h1 { margin-top: var(--space-2); }
.page-hero p { margin-top: var(--space-3); font-size: 1.1rem; max-width: 60ch; }
.breadcrumb { font-size: 0.85rem; color: var(--text-muted); margin-bottom: var(--space-4); }
.breadcrumb a { color: var(--text-muted); }

/* ---- Footer -------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--divider); background: var(--surface-subtle); padding-block: var(--space-12) var(--space-8); margin-top: var(--space-12); }
.footer-grid { display: grid; gap: var(--space-8); grid-template-columns: 1.6fr 1fr 1fr 1fr; }
.footer-brand img { height: 24px; margin-bottom: var(--space-3); }
.footer-brand p { font-size: 0.9rem; color: var(--text-secondary); max-width: 36ch; }
.footer-col h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-muted); margin-bottom: var(--space-3); }
.footer-col ul { list-style: none; padding: 0; display: grid; gap: var(--space-2); }
.footer-col a { color: var(--text-secondary); font-size: 0.92rem; }
.footer-col a:hover { color: var(--text-primary); text-decoration: none; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-10); padding-top: var(--space-6); border-top: 1px solid var(--divider); color: var(--text-secondary); font-size: 0.85rem; }

/* ---- Utilities ----------------------------------------------------------- */
.lead { font-size: 1.15rem; color: var(--text-secondary); }
.muted { color: var(--text-muted); }
.center { text-align: center; }
.mt-0 { margin-top: 0; }
.stack > * + * { margin-top: var(--space-4); }
.divider { height: 1px; background: var(--divider); border: 0; margin-block: var(--space-8); }

/* ---- Responsive ---------------------------------------------------------- */
@media (max-width: 820px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; }
  .main-nav.is-open { display: flex; }
}
@media (max-width: 560px) {
  :root { --header-h: 56px; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-grid; }
}
.nav-toggle { display: none; place-items: center; width: 38px; height: 38px; border-radius: var(--radius-md); border: 1px solid var(--outline); background: var(--surface-raised); color: var(--text-secondary); cursor: pointer; }

/* ---- FAQ (accordion, no JS) ---------------------------------------------- */
.faq { display: grid; gap: var(--space-2); }
.faq-item { border: 1px solid var(--outline); border-radius: var(--radius-md); background: var(--surface-raised); overflow: hidden; }
.faq-item summary { cursor: pointer; padding: var(--space-4) var(--space-5); font-weight: var(--w-medium); color: var(--text-primary); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--text-muted); font-size: 1.25rem; line-height: 1; }
.faq-item[open] summary::after { content: "\2013"; }
.faq-item summary:hover { color: var(--primary); }
.faq-answer { padding: 0 var(--space-5) var(--space-4); }
.faq-answer p { color: var(--text-secondary); font-size: 0.95rem; }

/* ---- CTA band ------------------------------------------------------------ */
.cta-band { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-6); padding: var(--space-8); border: 1px solid var(--outline); border-radius: var(--radius-xl); background: var(--surface-subtle); }
.cta-band h2 { font-size: 1.4rem; }
.cta-band__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* ---- Pricing ------------------------------------------------------------- */
.price { margin: var(--space-2) 0 var(--space-4); }
.price strong { font-size: 1.8rem; }
.ticklist { list-style: none; padding: 0; display: grid; gap: var(--space-2); margin-bottom: var(--space-5); }
.ticklist li { display: flex; gap: var(--space-2); align-items: flex-start; font-size: 0.92rem; color: var(--text-secondary); }
.ticklist .mi { color: var(--success); width: 18px; height: 18px; flex: none; margin-top: 2px; }
.card--featured { border-color: var(--primary); box-shadow: var(--shadow-md); }

/* ---- Nav portal accent --------------------------------------------------- */
.nav-portal { color: var(--primary); font-weight: var(--w-semibold); }

/* ---- Reduced motion ------------------------------------------------------ */
@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; }
}