/* Flippable SAS — shared styles. No external fonts/CDN; system font stack only. */

/* Color theme mapped from the Flippable/Upstart design system
   (monorepo apps/web/app/global.css): shadcn tokens + the "upstart" brand palette. */
:root {
  --bg: oklch(1 0 0);                        /* --background */
  --bg-soft: #f2f4fb;                        /* upstart-50 */
  --surface: oklch(1 0 0);                   /* --card */
  --text: oklch(0.147 0.004 49.25);          /* --foreground */
  --muted: oklch(0.553 0.013 58.071);        /* --muted-foreground */
  --border: oklch(0.923 0.003 48.717);       /* --border */
  --accent: oklch(0.5861 0.1295 282.7);      /* --primary */
  --accent-2: #c050c2;                        /* brand gradient magenta */
  --accent-ink: oklch(0.96 0.02 272);        /* --primary-foreground */
  --ring: oklch(0.7309 0.086 278.07 / 0.35); /* --ring, softened for glows */
  --shadow: 0 1px 2px rgba(16, 18, 27, 0.04), 0 12px 32px rgba(16, 18, 27, 0.06);
  --radius: 16px;
  --container: 1080px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: oklch(0.147 0.004 49.25);          /* dark --background */
    --bg-soft: oklch(0.216 0.006 56.043);    /* dark --card */
    --surface: oklch(0.216 0.006 56.043);    /* dark --card */
    --text: oklch(0.985 0.001 106.423);      /* dark --foreground */
    --muted: oklch(0.709 0.01 56.259);       /* dark --muted-foreground */
    --border: oklch(1 0 0 / 10%);            /* dark --border */
    --accent: oklch(0.68 0.16 277);          /* dark --sidebar-primary (brand, lightened) */
    --accent-2: #ef50a2;                      /* brand gradient pink */
    --accent-ink: oklch(0.2 0.03 280);       /* dark ink for filled brand buttons */
    --ring: oklch(0.7309 0.086 278.07 / 0.45);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 16px 40px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

img, svg { max-width: 100%; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  font-size: 18px;
}
.brand:hover { text-decoration: none; }
.brand .logo { width: 28px; height: 28px; border-radius: 8px; display: block; }
.nav { display: flex; gap: 26px; align-items: center; }
.nav a { color: var(--muted); font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--text); text-decoration: none; }
@media (max-width: 640px) { .nav { gap: 16px; } .nav .nav-hide-sm { display: none; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.06s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { box-shadow: 0 8px 24px var(--ring); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-soft); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 72px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -40% 0 auto 0;
  height: 520px;
  background: radial-gradient(60% 60% at 50% 0%, var(--ring), transparent 70%);
  pointer-events: none;
}
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
  max-width: 18ch;
}
.hero h1 .grad {
  /* Flippable/Upstart signature gradient (global.css .h1-text-gradient) */
  background: linear-gradient(90deg, #9291e7, #7270c6, #c050c2, #ef50a2, #ff6285, #ff806b, #ffa25a, #ffc358);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 32px;
}
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section.alt { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.section-head p { color: var(--muted); margin: 0; font-size: 1.05rem; }

/* ---------- Product cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 18px 44px var(--ring); }
.card .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.card h3 { margin: 0 0 8px; font-size: 1.4rem; letter-spacing: -0.01em; }
.card p { color: var(--muted); margin: 0 0 16px; }
.card .card-link { font-weight: 600; font-size: 15px; }

/* ---------- Company / facts ---------- */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 28px; }
.fact { border: 1px solid var(--border); border-radius: 12px; padding: 20px; background: var(--surface); }
.fact .label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 6px; }
.fact .value { font-weight: 600; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.contact-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; background: var(--surface); }
.contact-card h3 { margin: 0 0 10px; font-size: 1.15rem; }
.contact-card address { font-style: normal; color: var(--muted); line-height: 1.8; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 44px 0;
  color: var(--muted);
  font-size: 14px;
}
.site-footer .footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px; margin-bottom: 24px; }
.site-footer .brand { color: var(--text); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer nav a { color: var(--muted); }
.site-footer nav a:hover { color: var(--text); }
.site-footer .legal-line { border-top: 1px solid var(--border); padding-top: 20px; }

/* ---------- Legal / prose pages ---------- */
.legal { padding: 56px 0 80px; }
.legal .container { max-width: 820px; }
.back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.legal h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); letter-spacing: -0.02em; margin: 0 0 6px; }
.legal .updated { color: var(--muted); font-size: 14px; margin: 0 0 36px; }
.legal h2 { font-size: 1.3rem; letter-spacing: -0.01em; margin: 40px 0 10px; padding-top: 8px; }
.legal h3 { font-size: 1.08rem; margin: 24px 0 8px; }
.legal p, .legal li { color: var(--text); }
.legal .muted { color: var(--muted); }
.legal ul { padding-left: 22px; }
.legal li { margin: 6px 0; }
.legal .callout {
  border-left: 3px solid var(--accent);
  background: var(--bg-soft);
  padding: 14px 18px;
  border-radius: 8px;
  margin: 18px 0;
}
.legal .todo {
  background: color-mix(in srgb, #f59e0b 16%, transparent);
  border: 1px dashed color-mix(in srgb, #f59e0b 60%, var(--border));
  color: var(--text);
  padding: 2px 7px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9em;
}
.legal .table-wrap { overflow-x: auto; margin: 18px 0; }
.legal table { border-collapse: collapse; width: 100%; min-width: 560px; font-size: 14px; }
.legal th, .legal td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; vertical-align: top; }
.legal th { background: var(--bg-soft); font-weight: 600; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--accent-ink); padding: 10px 16px; border-radius: 0 0 8px 0; z-index: 40;
}
.skip-link:focus { left: 0; }