/* ==========================================================================
   unbottle. — site styles
   Mobile-first. Palette, type and the dot follow the unbottle. brand
   guidelines v1.0: mostly cobalt, accent of lime, lime on dark / cobalt on light.
   ========================================================================== */

:root {
  /* Core palette */
  --cobalt: #2427ff;
  --lime: #dfff3a;
  --ink: #0b0b2a;
  --white: #ffffff;
  --mist: #f1f1f7;
  --steel: #5b5f8a;

  /* Light surfaces */
  --bg: var(--white);
  --bg-alt: var(--mist);
  --surface: var(--mist);
  --surface-raised: var(--white);
  --text: var(--ink);
  --text-muted: var(--steel);
  --border: #dedeea;
  --label: var(--cobalt);
  --dot: var(--cobalt);

  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "Courier New", monospace;
  --radius: 4px;
  --container: 1200px;
  --header-h: 72px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--ink);
    --bg-alt: #121238;
    --surface: #16163f;
    --surface-raised: #16163f;
    --text: var(--white);
    --text-muted: #a9abcb;
    --border: #2a2a58;
    --label: var(--lime);
    --dot: var(--lime);
  }
}

/* Dark brand moments: cobalt and ink blocks flip the accent to lime */
.site-header,
.hero,
.section-dark,
.cta,
.result-stat,
.site-footer {
  --text: var(--white);
  --text-muted: #c9cbff;
  --border: rgba(255, 255, 255, 0.18);
  --label: var(--lime);
  --dot: var(--lime);
  color: var(--text);
}
.section-dark,
.site-footer { --text-muted: #a9abcb; }

/* Reset ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--dot); outline-offset: 3px; }

/* Layout helpers --------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
.section { padding-block: 4.5rem; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--ink); }
/* In dark mode the page itself is ink, so keep the dark band visibly separate */
@media (prefers-color-scheme: dark) {
  .section-dark { background: #06061a; border-block: 1px solid #1d1d45; }
}
.grid { display: grid; gap: 1rem; }

/* Type ------------------------------------------------------------------- */
/* Labels: JetBrains Mono Medium, caps, open tracking */
.label {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--label);
  margin-bottom: 1rem;
}
/* Headlines: Inter ExtraBold, tight tracking. Body keeps default tracking. */
.display {
  font-size: clamp(2.75rem, 6.2vw, 5.25rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.045em;
}
h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.07;
  letter-spacing: -0.035em;
  margin-bottom: 1.25rem;
  max-width: 18ch;
}
h3 {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin-bottom: 0.5rem;
}
.lead { font-size: 1.125rem; line-height: 1.55; color: var(--text-muted); }
.section-intro { font-size: 1.0625rem; color: var(--text-muted); max-width: 40rem; margin-bottom: 3rem; }
/* The brand dot: one per composition, an accent rather than a pattern */
.dot { color: var(--dot); fill: var(--dot); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  padding: 0.5rem 1rem;
  background: var(--lime);
  color: var(--ink);
  font-weight: 700;
  z-index: 100;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

/* Buttons ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-weight: 700;
  line-height: 1.2;
  border: 2px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--lime); color: var(--ink); }
.btn-primary:hover { background: var(--white); }
.btn-ghost { border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--text); }
.btn-small { padding: 0.5rem 1.15rem; background: var(--lime); color: var(--ink); }
.btn-small:hover { background: var(--white); }
.btn-large { padding: 1.05rem 2rem; font-size: 1.1rem; }

/* Header / nav ----------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--cobalt);
}
.nav-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  position: relative;
}
.brand { display: inline-flex; padding-block: 0.5rem; }
.brand img { width: 160px; height: auto; }

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
  padding: 0.6rem;
  margin-right: -0.6rem;
}
.nav-toggle-bar {
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
  padding: 0.5rem 1.25rem 1.5rem;
  background: var(--cobalt);
  border-top: 1px solid var(--border);
}
.site-nav.is-open { display: flex; }
.site-nav a {
  padding: 0.75rem 0;
  font-weight: 500;
  color: var(--text-muted);
}
.site-nav a:hover { color: var(--text); }
.site-nav .btn { margin-top: 0.5rem; padding: 0.5rem 1.15rem; color: var(--ink); }

/* Without JS the toggle can't work, so show the links inline instead */
.no-js .nav-toggle { display: none; }
.no-js .site-nav {
  display: flex;
  position: static;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 1.25rem;
  padding: 0 0 0.75rem;
  border: 0;
}

/* Hero ------------------------------------------------------------------- */
.hero {
  background: var(--cobalt);
  padding-block: 2.5rem 5rem;
  overflow: hidden;
}
.hero-inner {
  display: flex;
  flex-direction: column-reverse;
  gap: 2.5rem;
}
.hero .lead { margin-top: 1.75rem; max-width: 34rem; color: var(--text); }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.25rem;
}
.hero-mark { width: 96px; height: auto; flex-shrink: 0; }
.hero-mark .walls { fill: var(--white); }
/* Kinetic: the dot releases through the flare once, on load */
.hero-mark .dot {
  transform-box: fill-box;
  transform-origin: center;
  animation: release 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) 0.25s both;
}
@keyframes release {
  from { transform: translateX(-30%) scale(0.55); opacity: 0; }
  to { transform: none; opacity: 1; }
}

/* Cards ------------------------------------------------------------------ */
.card {
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.2s ease;
}
.card:hover { border-color: var(--dot); }
.card p { color: var(--text-muted); font-size: 0.97rem; }
.icon {
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 2.5rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Process steps ---------------------------------------------------------- */
.steps {
  display: grid;
  gap: 2.5rem;
  margin-top: 3rem;
}
.step {
  position: relative;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}
/* The dot as a bullet, sitting on the flow line */
.step::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--dot);
}
.step-num {
  display: block;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}
.step p { color: var(--text-muted); font-size: 0.97rem; }

/* Results ---------------------------------------------------------------- */
.results-grid { display: grid; gap: 1rem; }
.result-card {
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}
.result-chart {
  background: var(--surface-raised);
  border: 1px solid var(--border);
}
.result-chart .label { color: var(--text-muted); }
.result-chart figcaption { margin-top: auto; padding-top: 1rem; font-size: 0.875rem; font-weight: 500; color: var(--text-muted); }
.chart { width: 100%; height: auto; overflow: visible; margin-block: 0.5rem; }
.chart-grid { stroke: var(--border); stroke-width: 1; fill: none; }
.chart-line { fill: none; stroke: var(--text); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.chart-halo { fill: var(--lime); }
.chart-dot { fill: var(--cobalt); }
.chart-note { font-family: var(--font); font-size: 13px; font-weight: 700; fill: var(--text); }

.result-stat { background: var(--cobalt); }
.result-stat .label { color: var(--text-muted); }
.stat {
  font-size: clamp(4.5rem, 14vw, 8rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.05em;
  margin-block: auto 1.25rem;
  padding-top: 2rem;
}
.stat-what { font-weight: 500; font-size: 1.125rem; }
.stat-delta { color: var(--text-muted); font-size: 1.125rem; }

/* Why us ----------------------------------------------------------------- */
.why-inner { display: grid; gap: 2.5rem; }
.why-inner .section-intro { margin-bottom: 0; }
.checklist { display: grid; gap: 1.25rem; }
.checklist li {
  position: relative;
  padding-left: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
.checklist li:last-child { border-bottom: 0; padding-bottom: 0; }
.checklist li strong { color: var(--text); }
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--dot);
}

/* CTA -------------------------------------------------------------------- */
.cta { background: var(--cobalt); }
.cta-inner { max-width: var(--container); }
.cta .lead { color: var(--text); max-width: 36rem; margin-bottom: 2.25rem; }

/* Footer ----------------------------------------------------------------- */
.site-footer {
  background: var(--ink);
  padding-block: 3rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.footer-inner {
  display: grid;
  gap: 2rem;
}
.footer-brand img { width: 141px; height: auto; }
.footer-line {
  margin-top: 1rem;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  color: var(--text);
}
.footer-nav { display: flex; flex-wrap: wrap; gap: 0.75rem 1.5rem; }
.footer-nav a:hover { color: var(--text); }
.footer-meta { font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; }

/* Responsive ------------------------------------------------------------- */
@media (min-width: 640px) {
  .container { padding-inline: 2rem; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .results-grid { grid-template-columns: 1.25fr 1fr; }
}

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .site-nav,
  .no-js .site-nav {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    padding: 0;
    background: transparent;
    border: 0;
  }
  .site-nav a { padding: 0; }
  .site-nav .btn { margin-top: 0; }
  .brand img { width: 183px; }
  .hero { padding-block: 6rem 7.5rem; }
  .hero-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
  }
  .hero-mark { width: clamp(200px, 22vw, 300px); }
  .lead { font-size: 1.25rem; }
  .section { padding-block: 7rem; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .why-inner { grid-template-columns: 1.1fr 1fr; align-items: start; gap: 5rem; }
  .footer-inner { grid-template-columns: 1fr auto; align-items: start; }
  .footer-meta { grid-column: 1 / -1; }
}

@media (min-width: 1100px) {
  .steps { grid-template-columns: repeat(4, 1fr); gap: 2rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}