/* ============================================================
   Vaulty.beer — Material Design (black) theme
   ============================================================ */

:root {
  /* Material 3 dark surface ramp */
  --surface-0: #000000;            /* pure black background */
  --surface-1: #0d0d0f;
  --surface-2: #161619;
  --surface-3: #1d1d21;
  --surface-4: #25252a;
  --outline: #34343a;
  --outline-soft: #232327;

  /* Text */
  --on-surface: #ececf1;
  --on-surface-variant: #a6a6b0;
  --on-surface-faint: #6c6c78;

  /* Accent — amber "beer" tone */
  --primary: #ffc14d;
  --primary-dim: #c8922f;
  --on-primary: #1a1300;
  --primary-container: #3a2c08;

  --shadow-1: 0 1px 2px rgba(0,0,0,.6), 0 1px 3px rgba(0,0,0,.4);
  --shadow-2: 0 4px 8px rgba(0,0,0,.6), 0 2px 4px rgba(0,0,0,.4);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;

  --ease: cubic-bezier(.2,0,0,1);
}

/* Pure-black "OLED" toggle just deepens surfaces slightly */
body.oled {
  --surface-1: #050506;
  --surface-2: #0c0c0e;
  --surface-3: #131316;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Roboto", system-ui, -apple-system, sans-serif;
  background: var(--surface-0);
  color: var(--on-surface);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

code, .mono { font-family: "Roboto Mono", ui-monospace, monospace; }

::selection { background: var(--primary); color: var(--on-primary); }

/* ---------- Top App Bar ---------- */
.app-bar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13,13,15,.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--outline-soft);
}
.app-bar__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--on-surface);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .2px;
  white-space: nowrap;
}
.brand__icon { color: var(--primary); font-size: 26px; }
.brand__dot { color: var(--primary); }

.search {
  position: relative;
  flex: 1;
  max-width: 560px;
  display: flex;
  align-items: center;
  background: var(--surface-2);
  border: 1px solid var(--outline-soft);
  border-radius: var(--radius-pill);
  padding: 0 12px;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.search:focus-within {
  border-color: var(--primary-dim);
  background: var(--surface-3);
}
.search__icon { color: var(--on-surface-variant); font-size: 22px; }
.search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--on-surface);
  font-size: 15px;
  padding: 11px 10px;
}
.search input::placeholder { color: var(--on-surface-faint); }
.search__clear {
  background: none; border: none; cursor: pointer;
  color: var(--on-surface-variant);
  display: none; padding: 4px;
}
.search__clear .material-icons { font-size: 20px; }
.search.has-value .search__clear { display: inline-flex; }

.app-bar__actions { display: flex; align-items: center; gap: 6px; }
.btn-text {
  color: var(--on-surface-variant);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: var(--radius-pill);
  transition: background .2s var(--ease), color .2s var(--ease);
}
.btn-text:hover { background: var(--surface-3); color: var(--on-surface); }

.icon-btn {
  background: none; border: none; cursor: pointer;
  color: var(--on-surface-variant);
  width: 40px; height: 40px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.icon-btn:hover { background: var(--surface-3); color: var(--primary); }

/* ---------- Hero ---------- */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px 20px 40px;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px 300px at 12% 0%, rgba(255,193,77,.10), transparent 70%),
    radial-gradient(500px 260px at 90% 20%, rgba(255,193,77,.05), transparent 70%);
  pointer-events: none;
}
.hero__content { position: relative; max-width: 760px; }
.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  margin: 0 0 14px;
}
.hero__title {
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.08;
  font-weight: 700;
  margin: 0 0 18px;
  letter-spacing: -.5px;
}
.hero__subtitle {
  font-size: 17px;
  color: var(--on-surface-variant);
  margin: 0 0 28px;
  max-width: 620px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px; }

.btn-filled, .btn-outlined {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 500; font-size: 15px;
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  cursor: pointer;
  transition: transform .12s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.btn-filled {
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  box-shadow: var(--shadow-1);
}
.btn-filled:hover { box-shadow: var(--shadow-2); transform: translateY(-1px); }
.btn-filled .material-icons { font-size: 20px; }
.btn-outlined {
  background: transparent;
  color: var(--on-surface);
  border: 1px solid var(--outline);
}
.btn-outlined:hover { background: var(--surface-2); border-color: var(--primary-dim); }
.btn-outlined .material-icons { font-size: 20px; color: var(--primary); }

.hero__stats { display: flex; flex-wrap: wrap; gap: 14px; }
.stat {
  background: var(--surface-1);
  border: 1px solid var(--outline-soft);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  min-width: 110px;
}
.stat__num { font-size: 24px; font-weight: 700; color: var(--primary); }
.stat__label { font-size: 12px; color: var(--on-surface-variant); text-transform: uppercase; letter-spacing: .6px; }

/* ---------- Chips ---------- */
.chips {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 20px 4px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface-2);
  border: 1px solid var(--outline-soft);
  color: var(--on-surface-variant);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  font-size: 14px; font-weight: 500;
  cursor: pointer;
  transition: all .18s var(--ease);
  user-select: none;
}
.chip .material-icons { font-size: 18px; }
.chip:hover { background: var(--surface-3); color: var(--on-surface); }
.chip.active {
  background: var(--primary-container);
  border-color: var(--primary-dim);
  color: var(--primary);
}
.chip__count {
  font-size: 12px;
  background: var(--surface-4);
  color: var(--on-surface-variant);
  border-radius: var(--radius-pill);
  padding: 1px 8px;
}
.chip.active .chip__count { background: rgba(0,0,0,.35); color: var(--primary); }

/* ---------- Catalog ---------- */
.catalog {
  max-width: 1200px;
  margin: 0 auto;
  padding: 22px 20px 80px;
}
.catalog__head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 18px;
}
.catalog__title { font-size: 22px; font-weight: 700; margin: 0; }
.catalog__count { font-size: 14px; color: var(--on-surface-variant); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface-1);
  border: 1px solid var(--outline-soft);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform .14s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
  animation: rise .4s var(--ease) both;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--outline);
  box-shadow: var(--shadow-2);
}
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }

.card__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.card__cat {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 500;
  color: var(--primary);
  background: var(--primary-container);
  border-radius: var(--radius-pill);
  padding: 4px 10px;
  text-transform: capitalize;
}
.card__cat .material-icons { font-size: 15px; }

.card__name { font-size: 17px; font-weight: 600; margin: 0; word-break: break-word; }
.card__desc { font-size: 13px; color: var(--on-surface-variant); margin: 0; }

.card__hash {
  display: flex; align-items: center; gap: 8px;
  background: var(--surface-3);
  border: 1px solid var(--outline-soft);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 13px;
}
.card__hash .label { color: var(--on-surface-faint); font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
.card__hash .value { color: var(--on-surface); flex: 1; word-break: break-all; }

.card__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 11px;
  color: var(--on-surface-variant);
  background: var(--surface-3);
  border-radius: var(--radius-pill);
  padding: 2px 9px;
}

.card__actions { display: flex; gap: 8px; margin-top: auto; }
.copy-btn {
  flex: 1;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--surface-3);
  border: 1px solid var(--outline-soft);
  color: var(--on-surface);
  border-radius: var(--radius-pill);
  padding: 9px 12px;
  font-size: 13px; font-weight: 500;
  cursor: pointer;
  transition: all .16s var(--ease);
}
.copy-btn .material-icons { font-size: 17px; }
.copy-btn:hover { background: var(--primary-container); border-color: var(--primary-dim); color: var(--primary); }
.copy-btn.copied { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }

/* ---------- Empty ---------- */
.empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--on-surface-faint);
}
.empty .material-icons { font-size: 56px; opacity: .6; }
.empty p { font-size: 16px; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--outline-soft);
  background: var(--surface-1);
}
.footer__inner {
  max-width: 1200px; margin: 0 auto;
  padding: 36px 20px;
  text-align: center;
}
.footer .brand { justify-content: center; margin-bottom: 12px; }
.footer__note { color: var(--on-surface-variant); font-size: 13px; max-width: 520px; margin: 0 auto 8px; }
.footer__copy { color: var(--on-surface-faint); font-size: 12px; margin: 0; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translate(-50%, 20px);
  background: var(--surface-4);
  color: var(--on-surface);
  border: 1px solid var(--outline);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-size: 14px;
  box-shadow: var(--shadow-2);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
  z-index: 100;
  display: flex; align-items: center; gap: 8px;
}
.toast .material-icons { color: var(--primary); font-size: 18px; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .app-bar__inner { flex-wrap: wrap; }
  .search { order: 3; max-width: none; flex-basis: 100%; }
  .btn-text { display: none; }
  .hero { padding-top: 48px; }
}