/* Culla — getculla.com
   Brand tokens match the app's asset catalog (BrandGround / BrandInk / BrandAccent). */

:root {
  --ground: #f4f1ea;
  --ink: #17161a;
  --accent: #d2562a;
  /* Darker accent for filled controls: white text on #d2562a is only ~4.1:1. */
  --accent-strong: #b8461e;
  --accent-strong-hover: #a33d19;
  --muted: rgba(23, 22, 26, 0.64);
  --hairline: rgba(23, 22, 26, 0.1);
  --card: rgba(255, 255, 255, 0.6);
  --card-border: rgba(23, 22, 26, 0.07);
  --key-top: #ffffff;
  --key-side: #d9d4c9;
  --glow: rgba(210, 86, 42, 0.16);

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --max: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 18px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground: #17161a;
    --ink: #f4f1ea;
    --muted: rgba(244, 241, 234, 0.66);
    --hairline: rgba(244, 241, 234, 0.1);
    --card: rgba(255, 255, 255, 0.04);
    --card-border: rgba(244, 241, 234, 0.08);
    --key-top: #2b2a30;
    --key-side: #0d0c0f;
    --glow: rgba(210, 86, 42, 0.2);
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 400 17px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 8px; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Nav ---------- */

.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--ground) 82%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(16px);
  backdrop-filter: saturate(1.4) blur(16px);
  border-bottom: 1px solid var(--hairline);
}
.nav .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }
.lockup { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.lockup .mark { width: 30px; height: 30px; }
.lockup .wordmark { height: 20px; width: auto; }
.nav-links { display: flex; gap: 22px; margin-left: auto; font-size: 15px; }
.nav-links a { text-decoration: none; color: var(--muted); }
.nav-links a:hover { color: var(--ink); }
.lang { display: flex; gap: 2px; font: 600 13px/1 var(--font); letter-spacing: 0.02em; }
.lang a { padding: 7px 8px; border-radius: 8px; text-decoration: none; color: var(--muted); }
.lang a:hover { color: var(--ink); }
.lang a[aria-current="page"] { color: var(--ink); background: var(--card); box-shadow: inset 0 0 0 1px var(--card-border); }
@media (max-width: 720px) { .nav-links { display: none; } .lang { margin-left: auto; } }
/* The hero has its own big button; on phones the bar keeps just the logo and languages. */
@media (max-width: 480px) { .nav .btn { display: none; } }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 22px; border-radius: 999px;
  font: 600 16px/1 var(--font); text-decoration: none; white-space: nowrap;
  transition: background-color .15s ease, transform .15s ease;
}
.btn-primary { background: var(--accent-strong); color: #fff; }
.btn-primary:hover { background: var(--accent-strong-hover); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost { color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--hairline); }
.btn-ghost:hover { box-shadow: inset 0 0 0 1.5px var(--muted); }
.btn-small { min-height: 38px; padding: 0 16px; font-size: 15px; }
.btn svg { width: 18px; height: 18px; flex: none; }

/* ---------- Type ---------- */

h1, h2, h3 { font-family: var(--font-display); margin: 0; letter-spacing: -0.03em; line-height: 1.05; overflow-wrap: break-word; -webkit-hyphens: auto; hyphens: auto; }
h1 { font-size: clamp(44px, 8vw, 104px); font-weight: 750; letter-spacing: -0.045em; }
h2 { font-size: clamp(32px, 4.6vw, 56px); font-weight: 720; }
h3 { font-size: 21px; font-weight: 650; letter-spacing: -0.015em; line-height: 1.25; }
.accent { color: var(--accent); }
.eyebrow {
  display: inline-block; margin-bottom: 18px;
  font: 600 13px/1 var(--font); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent);
}
.lead { font-size: clamp(18px, 2vw, 22px); line-height: 1.5; color: var(--muted); max-width: 46ch; }
p { margin: 0; }

section { padding: clamp(72px, 10vw, 128px) 0; }
.section-head { max-width: 760px; margin-bottom: clamp(40px, 6vw, 64px); }
.section-head .lead { margin-top: 18px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }
.center .lead { margin-left: auto; margin-right: auto; }

/* ---------- Hero ---------- */

.hero { padding-top: clamp(56px, 9vw, 112px); padding-bottom: 0; position: relative; isolation: isolate; }
.hero::before {
  content: ""; position: absolute; z-index: -1; left: 0; right: 0; bottom: -10%; height: 70%;
  background: radial-gradient(closest-side, var(--glow), transparent);
}
.hero .lead { margin: 26px auto 0; text-align: center; }
.hero-cta { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 36px; }
.hero-meta { margin-top: 18px; font-size: 14px; color: var(--muted); text-align: center; }
.hero-shot { margin: clamp(40px, 6vw, 72px) auto 0; max-width: 1280px; padding: 0 clamp(0px, 2vw, 24px); }
.hero-shot img { width: 100%; margin-bottom: -1.5%; }

/* ---------- Steps ---------- */

.steps { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); counter-reset: step; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 28px; counter-increment: step;
}
.step::before {
  content: counter(step); display: inline-grid; place-items: center;
  width: 32px; height: 32px; margin-bottom: 20px; border-radius: 50%;
  background: var(--accent); color: #fff; font: 700 15px/1 var(--font);
}
.step p { margin-top: 10px; color: var(--muted); }
.keys { display: flex; flex-wrap: wrap; gap: 10px 14px; margin-top: 18px; }
.keys span { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; color: var(--muted); }
kbd {
  display: inline-grid; place-items: center; min-width: 34px; height: 34px; padding: 0 9px;
  border-radius: 8px; background: var(--key-top); color: var(--ink);
  box-shadow: 0 2px 0 var(--key-side), 0 0 0 1px var(--card-border);
  font: 600 15px/1 var(--font);
}
code {
  font: 500 0.9em/1 var(--mono); padding: 0.15em 0.4em; border-radius: 6px;
  background: var(--card); box-shadow: 0 0 0 1px var(--card-border);
}

/* ---------- Feature rows ---------- */

.row { display: grid; gap: clamp(32px, 5vw, 72px); grid-template-columns: 5fr 7fr; align-items: center; }
.row.flip { grid-template-columns: 7fr 5fr; }
.row.flip .row-text { order: 2; }
@media (max-width: 900px) { .row, .row.flip { grid-template-columns: 1fr; } .row.flip .row-text { order: 0; } }
.row-text .lead { margin-top: 18px; }
.row-media img { width: 100%; }
.ticks { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 12px; }
.ticks li { position: relative; padding-left: 30px; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 0.42em; width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.2l2.3 2.3 4.7-5' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat;
}

.formats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.formats span {
  padding: 7px 12px; border-radius: 999px; font: 600 13px/1 var(--mono); letter-spacing: 0.02em;
  background: var(--card); box-shadow: inset 0 0 0 1px var(--card-border);
}
.formats span.raw { color: var(--accent); }

/* ---------- Grid of cards ---------- */

.grid { display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 1000px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 28px; }
.card .icon {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 18px;
  background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent);
}
.card .icon svg { width: 22px; height: 22px; }
.card p { margin-top: 10px; color: var(--muted); }

/* ---------- Privacy band ---------- */

.band { background: var(--ink); color: var(--ground); border-radius: clamp(20px, 3vw, 32px); padding: clamp(48px, 7vw, 88px) var(--gutter); text-align: center; }
.band h2 { color: var(--ground); }
.band .lead { color: color-mix(in srgb, var(--ground) 70%, transparent); margin: 18px auto 0; }
.pills { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 32px; }
.pills span { padding: 10px 16px; border-radius: 999px; font-weight: 600; font-size: 15px; box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--ground) 22%, transparent); }

/* ---------- FAQ ---------- */

.faq { max-width: 820px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--hairline); }
.faq summary {
  cursor: pointer; list-style: none; padding: 22px 40px 22px 0; position: relative;
  font: 600 19px/1.35 var(--font-display); letter-spacing: -0.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 6px; top: 50%; width: 12px; height: 12px; margin-top: -9px;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(45deg);
  transition: transform .2s ease;
}
.faq details[open] summary::after { transform: rotate(225deg); margin-top: -3px; }
.faq details p { padding: 0 0 24px; color: var(--muted); max-width: 66ch; }

/* ---------- Final CTA ---------- */

.final { text-align: center; }
.final .icon-big { width: 112px; height: 112px; margin: 0 auto 28px; }
.final .lead { margin: 18px auto 0; }
.final .hero-cta { margin-top: 32px; }

/* ---------- Footer ---------- */

footer { border-top: 1px solid var(--hairline); padding: 36px 0 48px; font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; align-items: center; }
footer nav { display: flex; gap: 20px; margin-left: auto; }
footer nav a { text-decoration: none; }
footer nav a:hover { color: var(--ink); }
footer .legal { flex-basis: 100%; font-size: 12px; opacity: 0.8; }
@media (max-width: 640px) { footer nav { margin-left: 0; } }

/* ---------- Document pages (support, privacy) ---------- */

.doc { padding: clamp(56px, 8vw, 96px) 0; }
.doc .wrap { max-width: 780px; }
.doc h1 { font-size: clamp(32px, 6vw, 64px); }
.doc .lead { margin-top: 18px; }
.doc h2 { font-size: 26px; margin-top: 48px; letter-spacing: -0.02em; }
.doc h3 { margin-top: 28px; font-size: 18px; }
.doc p, .doc ul { margin-top: 12px; color: var(--muted); }
.doc ul { padding-left: 1.2em; }
.doc li + li { margin-top: 6px; }
.doc strong { color: var(--ink); font-weight: 600; }
.contact-card {
  margin-top: 32px; padding: 28px; border-radius: var(--radius);
  background: var(--card); border: 1px solid var(--card-border);
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between;
}
.contact-card p { margin: 0; color: var(--ink); font-weight: 600; font-size: 19px; }
.contact-card span { display: block; font-weight: 400; font-size: 15px; color: var(--muted); margin-top: 4px; }