/* ==========================================================================
   chaku.css — page styles for chaku.work
   Sits on top of base.css (chaku violet token fork, system-default theme).
   Deliberately quiet: the dictionary entry in the hero is the one
   distinctive element; everything else stays plain.
   ========================================================================== */

main section { padding: var(--s-9) 0 0; }
main section:last-of-type { padding-bottom: var(--s-9); }

/* --------------------------------------------------------------------------
   1. Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  padding: var(--s-8) 0 var(--s-9);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  top: -260px;
  right: -180px;
  width: 680px;
  height: 680px;
  background: radial-gradient(circle, color-mix(in srgb, var(--signal) 10%, transparent) 0%, transparent 65%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: var(--s-8);
  align-items: center;
}

.hero h1 {
  font-family: var(--font-sans);
  font-size: clamp(48px, 7.5vw, 88px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 0;
  color: var(--ink);
}

.hero-tagline {
  font-family: var(--font-sans);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.32;
  color: var(--ink);
  margin: 18px 0 0;
  max-width: 30ch;
  text-wrap: balance;
}

.hero-copy {
  font-size: var(--t-base);
  color: var(--ink-2);
  margin: var(--s-5) 0 0;
  max-width: 54ch;
  text-wrap: pretty;
}

.hero-copy a {
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
}

.hero-copy a:hover { color: var(--signal); border-color: var(--signal); }

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-6);
}

.hero-mark { display: flex; justify-content: center; }

.hero-mark img {
  width: min(320px, 70vw);
  height: auto;
  border-radius: 22.5%;
  box-shadow: 0 32px 80px -36px rgba(22, 13, 41, 0.55);
}

/* The dictionary entry — the page's one distinctive element */

.dict-entry {
  margin: var(--s-6) 0 0;
  padding: var(--s-5) var(--s-5) var(--s-5) var(--s-6);
  border-left: 3px solid var(--signal);
  background: color-mix(in srgb, var(--paper-2) 65%, transparent);
  border-radius: 0 var(--r-3) var(--r-3) 0;
  max-width: 56ch;
}

.dict-head { margin: 0; }

.dict-word {
  font-family: var(--font-sans);
  font-size: var(--t-lg);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.dict-gram {
  font-family: var(--font-sans);
  font-style: italic;
  font-size: var(--t-sm);
  color: var(--ink-3);
  margin-left: 8px;
}

.dict-etym {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  color: var(--ink-3);
  margin-left: 8px;
  letter-spacing: 0.02em;
}

.dict-def {
  font-size: var(--t-base);
  color: var(--ink-2);
  line-height: 1.6;
  margin: 10px 0 0;
  text-wrap: pretty;
}

.dict-note {
  font-size: var(--t-sm);
  color: var(--ink-3);
  margin: 10px 0 0;
}

/* --------------------------------------------------------------------------
   2. Fork section
   -------------------------------------------------------------------------- */

.fork-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 72ch;
}

.fork-list li {
  font-size: var(--t-base);
  color: var(--ink-2);
  line-height: 1.6;
  padding: 14px 0 14px 26px;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.fork-list li:last-child { border-bottom: 0; }

.fork-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 24px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
}

.fork-note {
  font-size: var(--t-base);
  color: var(--ink-2);
  max-width: 64ch;
  margin: var(--s-6) 0 0;
  text-wrap: pretty;
}

.fork-note a {
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
}

.fork-note a:hover { color: var(--signal); border-color: var(--signal); }

/* --------------------------------------------------------------------------
   3. Apps
   -------------------------------------------------------------------------- */

.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-4);
}

.app-fact {
  padding: var(--s-5);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  background: color-mix(in srgb, var(--paper-2) 55%, transparent);
}

.app-fact h3 {
  font-size: var(--t-md);
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 0 0 8px;
}

.app-fact p {
  font-size: var(--t-sm);
  color: var(--ink-2);
  margin: 0;
  line-height: 1.6;
}

.kbd {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 5px;
}

.apps-status {
  font-size: var(--t-sm);
  color: var(--ink-3);
  margin: var(--s-6) 0 0;
}

/* --------------------------------------------------------------------------
   4. Signup card
   -------------------------------------------------------------------------- */

.lm-card {
  max-width: 560px;
  margin: 0 auto;
  padding: var(--s-7) var(--s-6);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  background: color-mix(in srgb, var(--paper-2) 55%, transparent);
  text-align: center;
}

.lm-card h3 {
  font-size: var(--t-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}

.lm-card p {
  font-size: var(--t-sm);
  color: var(--ink-2);
  margin: 0 auto;
  max-width: 44ch;
}

.lm-form {
  display: flex;
  gap: var(--s-2);
  justify-content: center;
  margin: var(--s-5) 0 0;
}

.lm-form input[type="email"] {
  flex: 1;
  max-width: 300px;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: var(--t-sm);
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-2);
  padding: 11px 14px;
}

.lm-form input[type="email"]:focus {
  outline: 2px solid var(--signal);
  outline-offset: 1px;
  border-color: transparent;
}

.lm-micro {
  font-size: var(--t-xs);
  color: var(--ink-3);
  margin-top: var(--s-4);
}

/* --------------------------------------------------------------------------
   5. Back-to-top
   -------------------------------------------------------------------------- */

.back-to-top {
  position: fixed;
  right: var(--s-5);
  bottom: var(--s-5);
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--ink-2);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, color 0.15s ease, border-color 0.15s ease;
  z-index: 90;
}

.back-to-top.show { opacity: 1; pointer-events: auto; }
.back-to-top:hover { color: var(--signal); border-color: var(--signal); }
.back-to-top svg { width: 16px; height: 16px; }

/* --------------------------------------------------------------------------
   6. Imprint (subpage) — house pattern
   -------------------------------------------------------------------------- */

.p-section { padding: var(--s-9) 0; }

.backlink {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.backlink:hover { color: var(--signal); }

.imprint-content {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--s-7);
  align-items: start;
}

.imprint-meta {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}

.imprint-details {
  font-family: var(--font-sans);
  font-size: var(--t-sm);
  line-height: 1.7;
  color: var(--ink-2);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-6);
}

.imprint-details strong { font-weight: 600; color: var(--ink); }
.imprint-details a { color: var(--ink); border-bottom: 1px solid var(--line-strong); }
.imprint-details a:hover { color: var(--signal); border-color: var(--signal); }
.imprint-details .detail-group { margin: 0; }

/* --------------------------------------------------------------------------
   7. Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1000px) {
  .hero-content { grid-template-columns: 1fr; gap: var(--s-7); }
  .hero-mark { order: -1; justify-content: flex-start; }
  .hero-mark img { width: 128px; }
  .apps-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .lm-form { flex-direction: column; }
  .lm-form input[type="email"] { max-width: none; }
  .imprint-content { grid-template-columns: 1fr; gap: var(--s-4); }
  .imprint-details { grid-template-columns: 1fr; gap: var(--s-4); }
}

/* --------------------------------------------------------------------------
   8. Reduced motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .back-to-top { transition: none !important; }
}