/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Tokens ── */
:root {
  --bg:        #f4f4f1;
  --surface:   #fbfbf8;
  --surface-2: #e8e8e3;
  --ink:       #0a0a0a;
  --ink-soft:  #2a2a2a;
  --muted:     #6f6f6c;
  --muted-2:   #a8a8a3;
  --line:      #c8c8c4;
  --accent:    #f4d03a;

  --font-display: "Instrument Serif", "Times New Roman", serif;
  --font-ui:      "Inter Tight", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", monospace;

  --pad-x: 24px;
}

/* ── Base ── */
html {
  background: var(--surface-2);           /* visible only outside .page */
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin: 0;
}

p  { margin: 0; }
a  { color: inherit; text-decoration: none; }

/* ── Page frame — single container, all borders live here ── */
.page {
  max-width: 740px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--bg);
  background-image: radial-gradient(circle, rgba(10,10,10,0.035) 0.4px, transparent 0.8px);
  background-size: 3px 3px;
  border-left:  1px solid var(--line);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}

@media (min-width: 760px) {
  body { padding: 24px 0 48px; }
  .page {
    min-height: calc(100vh - 72px);
    border: 1px solid var(--line);
    box-shadow:
      0 30px 60px -20px rgba(10,10,10,0.10),
      0 12px 24px -10px rgba(10,10,10,0.06);
  }
}

/* ── Utility ── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.mark {
  background: linear-gradient(
    180deg,
    transparent 0%, transparent 52%,
    var(--accent) 52%, var(--accent) 92%,
    transparent 92%
  );
  padding: 0 6px;
  margin: 0 -3px;
  border-radius: 1px 2px 0 2px;
}

/* ── Buttons — one class, two sizes ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--font-ui);
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: background 0.15s ease, transform 0.1s ease;
}
.btn:hover  { background: #1a1a1a; }
.btn:active { transform: translateY(1px); }

.btn-sm {
  padding: 10px 18px;
  font-size: 14px;
}
.btn-lg {
  padding: 18px 28px;
  font-size: 17px;
}

.btn-arrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

/* ── Section scaffold — shared by all sections ── */
section, nav, footer {
  padding-left:  var(--pad-x);
  padding-right: var(--pad-x);
}

/* Every section and nav gets a bottom border — footer gets a top border */
nav,
section {
  border-bottom: 1px solid var(--ink);
}

footer {
  border-top: 1px solid var(--ink);
}

/* ── Section header — used in Features + How ── */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-top: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ink);
  margin-left:  calc(-1 * var(--pad-x));
  margin-right: calc(-1 * var(--pad-x));
  padding-left:  var(--pad-x);
  padding-right: var(--pad-x);
}

.section-count {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-2);
}

/* ── NAV ── */
nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 15px;
  padding-bottom: 15px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-toggle {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--muted);
  background: none;
  border: 1px solid var(--line);
  padding: 6px 10px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.lang-toggle:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.nav-brand {
  display: flex;
  align-items: baseline;
  gap: 5px;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 22px;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.nav-brand-mark {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 13px;
  transform: translateY(-2px);
  display: inline-block;
}

/* ── HERO ── */
.hero {
  padding-top: 64px;
  padding-bottom: 56px;
}

.hero .eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.hero .eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--ink);
  flex-shrink: 0;
}

.hero-title {
  font-size: clamp(58px, 11vw, 100px);
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--ink);
  margin-bottom: 28px;
}
.hero-title em { font-style: italic; opacity: 0.55; }

.hero-sub {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(17px, 2.8vw, 21px);
  line-height: 1.45;
  color: var(--ink-soft);
  max-width: 500px;
  margin-bottom: 40px;
}

/* ── TICKER ── */
.ticker {
  background: var(--ink);
  color: var(--bg);
  padding-left: 0 !important;
  padding-right: 0 !important;
  overflow: hidden;
  border-bottom: 1px solid var(--ink);
}

.ticker-track {
  display: flex;
  white-space: nowrap;
  animation: ticker-scroll 20s linear infinite;
  padding: 9px 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ticker-item  { padding: 0 28px; flex-shrink: 0; opacity: 0.85; }
.ticker-sep   { flex-shrink: 0; opacity: 0.3; }

@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── FEATURES ── */
.features {
  padding-top: 0;
  padding-bottom: 0;
}

.feature-row {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 18px;
  align-items: baseline;
  padding-top: 22px;
  padding-bottom: 22px;
  border-bottom: 1px dotted var(--line);
}
.feature-row:last-child { border-bottom: none; }

.feature-n {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--muted-2);
  padding-top: 5px;               /* align with title cap-height */
}

.feature-title {
  font-size: clamp(22px, 4vw, 28px);
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 8px;
}
.feature-title em { font-style: italic; }

.feature-body {
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

/* ── HOW IT WORKS ── */
.how {
  padding-top: 0;
  padding-bottom: 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.step {
  padding: 24px 20px 28px;
  border-right: 1px solid var(--ink);
}
.step:first-child { padding-left: 0; }
.step:last-child  { border-right: none; padding-right: 0; }

.step-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 40px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ink);
  background: linear-gradient(
    180deg,
    transparent 0%, transparent 52%,
    var(--accent) 52%, var(--accent) 92%,
    transparent 92%
  );
  display: inline;
  padding: 0 4px;
  margin: 0 -2px;
}

.step-title {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-top: 14px;
  margin-bottom: 6px;
  line-height: 1.2;
}

.step-body {
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ── CTA ── */
.cta {
  padding-top: 64px;
  padding-bottom: 64px;
  text-align: center;
  margin-top: auto;
}

.cta .eyebrow {
  margin-bottom: 16px;
  display: block;
}

.cta-title {
  font-size: clamp(34px, 7.5vw, 60px);
  line-height: 1.0;
  letter-spacing: -0.04em;
  color: var(--ink);
  margin-bottom: 36px;
}
.cta-title em { font-style: italic; }

/* ── FOOTER ── */
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 18px;
  padding-bottom: 18px;
}

.footer-brand {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 16px;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── Responsive ── */
@media (max-width: 560px) {
  :root { --pad-x: 18px; }

  .hero { padding-top: 44px; padding-bottom: 40px; }

  .steps {
    grid-template-columns: 1fr;
  }
  .step {
    border-right: none;
    border-bottom: 1px dotted var(--line);
    padding: 22px 0;
  }
  .step:last-child { border-bottom: none; }

  .cta { padding-top: 48px; padding-bottom: 48px; }
}