/**
 * Apex landing — Design option 3 (Assembly) hero language.
 * Colours: CSS custom properties only (theme tokens).
 */

.landing {
  --landing-pad-x: clamp(20px, 5vw, 80px);
  --landing-pad-y: clamp(22px, 4vw, 48px);
  --landing-tile-a: var(--accent);
  --landing-tile-b: var(--status-break);
  --landing-tile-c: var(--bg3);
  --landing-tile-d: var(--status-absent);
  --landing-tile-e: var(--status-in);
  --landing-tile-f: var(--bg4);
  --landing-tile-g: var(--metal2);
  --landing-radius: 14px;
  --landing-ease: var(--ease, cubic-bezier(0.16, 1, 0.3, 1));

  position: relative;
  min-height: 100vh;
  box-sizing: border-box;
  background: var(--bg0);
  color: var(--tx);
  display: flex;
  flex-direction: column;
  padding: var(--landing-pad-y) var(--landing-pad-x) calc(var(--landing-pad-y) + 24px);
  overflow-x: hidden;
}

.landing-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 28px;
  flex-shrink: 0;
}

.landing-brand {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -1.4px;
  line-height: 1;
  color: var(--tx);
}

.landing-nav-login {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--tx2);
  background: transparent;
  border: 1px solid var(--bd2);
  border-radius: 10px;
  padding: 9px 15px;
  cursor: pointer;
}

.landing-nav-login:hover {
  color: var(--tx);
  border-color: var(--bd2);
}

.landing-hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 720px;
  width: 100%;
  margin: 0 auto;
  gap: 0;
}

.landing-mosaic {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(3, clamp(44px, 8vw, 64px));
  gap: 8px;
  margin-bottom: 26px;
}

.landing-tile {
  border-radius: var(--landing-radius);
  min-width: 0;
}

.landing-tile-w2 {
  grid-column: span 2;
}

.landing-tile-h2 {
  grid-row: span 2;
}

.landing-tile-a {
  background: var(--landing-tile-a);
}
.landing-tile-b {
  background: var(--landing-tile-b);
}
.landing-tile-c {
  background: var(--landing-tile-c);
}
.landing-tile-d {
  background: var(--landing-tile-d);
}
.landing-tile-e {
  background: var(--landing-tile-e);
}
.landing-tile-f {
  background: var(--landing-tile-f);
}
.landing-tile-g {
  background: var(--landing-tile-g);
}

.landing-tile-feature {
  background: var(--bg1);
  border: 1px solid var(--bd2);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 14px;
}

.landing-tile-kicker {
  font-size: 10px;
  letter-spacing: 1.4px;
  color: var(--accent);
  text-transform: uppercase;
}

.landing-tile-num {
  font-size: clamp(24px, 4vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--tx);
}

.landing-tile-sub {
  font-size: 12px;
  color: var(--tx2);
  line-height: 1.4;
}

.landing-headline {
  margin: 0 0 14px;
  font-size: clamp(36px, 7vw, 56px);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -1.8px;
  color: var(--tx);
}

.landing-lede {
  margin: 0 0 28px;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.65;
  color: var(--tx2);
  max-width: 34em;
}

.landing-cta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 360px;
}

.landing-btn-primary {
  display: block;
  width: 100%;
  text-align: center;
  background: var(--accent);
  color: var(--bg0);
  font-weight: 700;
  font-size: 15px;
  border: none;
  padding: 16px 20px;
  border-radius: 12px;
  cursor: pointer;
}

.landing-btn-primary:hover:not(:disabled) {
  filter: brightness(1.06);
}

.landing-btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.landing-btn-ghost {
  display: block;
  width: 100%;
  text-align: center;
  background: transparent;
  color: var(--tx);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid var(--bd2);
  padding: 15px 20px;
  border-radius: 12px;
  cursor: pointer;
}

.landing-btn-ghost:hover {
  border-color: var(--bd2);
  background: var(--accent-dim);
}

.landing-meta {
  text-align: center;
  font-size: 11px;
  color: var(--tx3);
}

/* ── Panel overlay ── */
.landing-panel {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  background: color-mix(in srgb, var(--bg0) 72%, transparent);
  padding: 20px;
  box-sizing: border-box;
}

.landing-panel[hidden] {
  display: none;
}

.landing-panel-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--bg2);
  border: 1px solid var(--bd);
  border-radius: var(--r, 6px);
  padding: 28px 24px 24px;
  box-shadow: 0 24px 60px color-mix(in srgb, var(--bg0) 55%, transparent);
  animation: landingPanelIn 0.35s var(--landing-ease);
}

@keyframes landingPanelIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.landing-panel-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: transparent;
  border: none;
  color: var(--tx3);
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
}

.landing-panel-close:hover {
  color: var(--tx);
}

.landing-panel-title {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.6px;
}

.landing-panel-sub {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.55;
  color: var(--tx2);
}

.landing-field {
  display: block;
  margin-bottom: 10px;
}

.landing-field-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--tx2);
  margin-bottom: 8px;
}

.landing-slug-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.landing-input {
  flex: 1;
  min-width: 140px;
  background: var(--bg1);
  border: 1px solid var(--bd);
  border-radius: var(--r, 6px);
  color: var(--tx);
  font-size: 15px;
  padding: 12px 14px;
  outline: none;
}

.landing-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.landing-suffix {
  font-size: 13px;
  color: var(--tx3);
}

.landing-err {
  font-size: 13px;
  color: var(--status-absent);
  margin: 8px 0 0;
}

.landing-hint {
  font-size: 12px;
  color: var(--tx3);
  margin: 8px 0 0;
  min-height: 1.2em;
}

.landing-hint.is-ok {
  color: var(--accent);
}

.landing-btn-submit {
  margin-top: 20px;
}

@media (min-width: 900px) {
  .landing-hero {
    max-width: 560px;
    margin: 0;
  }

  .landing-panel {
    align-items: center;
  }

  .landing-cta {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    max-width: none;
  }

  .landing-btn-primary,
  .landing-btn-ghost {
    width: auto;
    min-width: 180px;
  }

  .landing-meta {
    width: 100%;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .landing-panel-card {
    animation: none;
  }
}