/* ==========================================================================
   WREN — components.css
   Nav, station signs, waveform slot, buttons, forms, footer.
   (Media tiles arrive with the placeholder system in Phase 1.)
   ========================================================================== */

/* ---- Nav ---------------------------------------------------------------- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  background: color-mix(in srgb, var(--tunnel) 88%, transparent);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-3);
}

.site-nav__logo {
  font-family: var(--font-display);
  font-stretch: var(--display-stretch);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: 0.14em;
  color: var(--tile);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-left: auto;
  flex-wrap: wrap;
}

.site-nav__link {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-mono);
  color: var(--concrete);
  text-transform: uppercase;
  padding-block: var(--space-1);
  background-image: linear-gradient(var(--sodium), var(--sodium));
  background-repeat: no-repeat;
  background-size: 0% 1px;
  background-position: left 100%;
  transition: color 0.25s var(--ease-house), background-size 0.35s var(--ease-house);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--tile);
  background-size: 100% 1px;
}

/* Current page: transit-blue marker dot — wayfinding, not decoration */
.site-nav__link[aria-current="page"] {
  color: var(--tile);
}

.site-nav__link[aria-current="page"]::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--transit);
  margin-right: var(--space-2);
  vertical-align: 2px;
}

/* Sound toggle — mono, far right */
.sound-toggle {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-mono);
  color: var(--concrete);
  text-transform: uppercase;
  white-space: nowrap;
  transition: color 0.25s var(--ease-house);
}

.sound-toggle:hover,
.sound-toggle:focus-visible {
  color: var(--tile);
}

.sound-toggle[aria-pressed="true"] .sound-toggle__state {
  color: var(--sodium);
}

/* Waveform strip under the nav — the sodium motif (canvas via waveform.js).
   The background line is the no-JS fallback; the canvas paints over it. */
.site-nav__waveform {
  height: 16px;
  background: linear-gradient(var(--sodium), var(--sodium)) center / 100% 1px no-repeat;
  opacity: 0.85;
}

/* Any waveform host: canvas replaces the fallback line */
.waveform-host {
  background: none;
}

/* Push page content below fixed nav */
main {
  padding-top: 5rem;
}

/* ---- Station-sign section header ---------------------------------------- */
/* Transit-blue bar, white caps type, line-dot marker. Structural = transit. */
.station-sign {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--transit);
  color: #fff;
  padding: var(--space-2) var(--space-4) var(--space-2) var(--space-3);
  font-size: var(--text-lg);
  margin-bottom: var(--space-5);
}

.station-sign::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
  outline: 2px solid rgba(255, 255, 255, 0.4);
  outline-offset: 2px;
  flex: none;
}

.station-sign__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  font-weight: 400;
  text-transform: uppercase;
  opacity: 0.9; /* 0.75 failed AA for small text on transit blue */
}

/* ---- Waveform divider (animated when it carries data-waveform) ----------- */
.waveform-divider {
  height: 1px;
  background: var(--sodium);
  opacity: 0.55;
  border: 0;
  margin-block: var(--space-6);
}

div.waveform-divider[data-waveform] {
  height: 20px;
  opacity: 0.8;
}

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

/* Play/pause — home latest-release slot and music-page song cards.
   Fixed width so ▶ ↔ ❚❚ doesn't shift the row. */
.player-slot__btn {
  color: var(--sodium);
  font-size: var(--text-base);
  line-height: 1;
  padding: var(--space-1);
  min-width: 2em;
  text-align: center;
}

.player-slot__btn:hover,
.player-slot__btn.is-playing {
  color: var(--tile);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--concrete);
  color: var(--tile);
  transition: border-color 0.25s var(--ease-house), color 0.25s var(--ease-house),
    background-color 0.25s var(--ease-house);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--sodium);
  color: var(--sodium);
}

/* Primary: her action — sodium */
.btn--voice {
  background: var(--sodium);
  border-color: var(--sodium);
  color: var(--tunnel);
  font-weight: 700;
}

.btn--voice:hover,
.btn--voice:focus-visible {
  background: transparent;
  color: var(--sodium);
}

/* ---- Forms ---------------------------------------------------------------- */
.field {
  display: grid;
  gap: var(--space-1);
}

.field__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  color: var(--concrete);
}

.field__input {
  background: var(--tunnel-lift);
  border: 1px solid var(--concrete-dim);
  color: var(--tile);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  transition: border-color 0.25s var(--ease-house);
}

.field__input::placeholder {
  color: var(--concrete);
}

.field__input:hover {
  border-color: var(--concrete);
}

.field__input:focus-visible {
  outline-offset: 0;
  border-color: var(--sodium);
}

/* Prototype "sent" state (main.js markSent): fields hide, a confirmation
   takes their place. Works inside grid and flex forms alike. */
form.is-sent > :not(.form-sent) {
  display: none;
}

.form-sent {
  grid-column: 1 / -1;
  flex: 1 1 100%;
  display: grid;
  gap: var(--space-2);
  border: 1px solid var(--sodium);
  padding: var(--space-4);
}

.form-sent__eyebrow {
  color: var(--sodium);
}

.form-sent__msg {
  font-size: var(--text-base);
  max-width: 55ch;
}

.form-sent__again {
  width: fit-content;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-mono);
  color: var(--concrete);
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 0;
  margin-top: var(--space-1);
}

.form-sent__again:hover,
.form-sent__again:focus-visible {
  color: var(--sodium);
}

/* ---- Footer ---------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--concrete-dim);
  margin-top: var(--space-7);
  padding-block: var(--space-6) var(--space-5);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.site-footer__heading {
  font-size: var(--text-sm);
  color: var(--concrete);
  margin-bottom: var(--space-3);
}

.site-footer__socials {
  display: grid;
  gap: var(--space-2);
}

.site-footer__social {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--tile-dim);
  width: fit-content;
}

.site-footer__social:hover,
.site-footer__social:focus-visible {
  color: var(--sodium);
}

.site-footer__blurb {
  margin-bottom: var(--space-3);
}

.mini-list-form {
  display: flex;
  gap: var(--space-2);
  align-items: end;
  flex-wrap: wrap;
}

.mini-list-form .field {
  flex: 1 1 180px;
}

/* Footer contact address. Space Mono's "@" is a squat, odd glyph, so the
   sign alone is set in Archivo — same size, reads as a normal @. */
.site-footer__email {
  color: var(--tile-dim);
}

.site-footer__email .at {
  font-family: var(--font-display);
  font-weight: 500;
}

.site-footer__meta {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--concrete);
}

.site-footer__meta a:hover,
.site-footer__meta a:focus-visible {
  color: var(--sodium);
}

/* ---- Media tile hover (CLAUDE.md §2): scale 1.02, grain intensifies,
       sodium underline draws on captions. Scale is applied per-context;
       the grain boost is universal to every media slot. ------------------ */
.ph::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 240px 240px;
  transition: opacity 0.3s var(--ease-house);
}

.ph:hover::after {
  opacity: 0.14;
}

/* Contexts where tiles lift on hover */
.hero-morph__grid .ph,
.shows-past__media .ph,
.press-photos .ph,
.teaser .ph,
.latest__cover.ph {
  transition: transform 0.35s var(--ease-house);
}

.hero-morph__grid .ph:hover,
.shows-past__media .ph:hover,
.press-photos .ph:hover,
.teaser .ph:hover,
.latest__cover.ph:hover {
  transform: scale(1.02);
}

/* ---- Small screens --------------------------------------------------------- */
@media (max-width: 720px) {
  .site-nav__inner {
    gap: var(--space-3);
  }

  .site-nav__links {
    gap: var(--space-3);
  }
}

@media (max-width: 480px) {
  .site-nav__inner {
    padding-block: var(--space-2);
  }

  .site-nav__links {
    gap: var(--space-2) var(--space-3);
  }

  .site-nav__link,
  .sound-toggle {
    font-size: 0.72rem;
  }
}