/*
 * Zeug — inventory for BUNTER BLOCK BUXTEHUDE.
 * Bootstrap 5.3 does the heavy lifting; this file carries the brand and the
 * handful of components Bootstrap has no answer for (colour swatches, the
 * size x colour matrix, the audit timeline).
 */

:root {
  --bb-cyan: #25b3d1;
  --bb-purple: #9b7ab8;
  --bb-pink: #e84c8a;
  --bb-orange: #f5a623;
  --bb-green: #8bc53f;
  --bb-red: #e53935;
  --bb-ink: #1d2233;

  --bb-gradient: linear-gradient(90deg, var(--bb-cyan), var(--bb-purple), var(--bb-pink), var(--bb-orange), var(--bb-green), var(--bb-red));

  --bs-body-font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --bs-primary: var(--bb-ink);
  --bs-link-color-rgb: 29, 34, 51;
  --bs-border-radius: 0.75rem;
  --bs-border-radius-lg: 1rem;
}

body {
  background-color: #f6f7fb;
  -webkit-font-smoothing: antialiased;
}

[data-bs-theme="dark"] body {
  background-color: #14161d;
}

/* ---------- Brand ---------- */

.text-bunter {
  background: var(--bb-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.bunter-rule {
  height: 4px;
  border: 0;
  opacity: 1;
  background: var(--bb-gradient);
}

.brand-wordmark {
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
}

/* ---------- Layout ---------- */

.app-shell {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.app-main {
  flex: 1 0 auto;
  padding-bottom: 5.5rem; /* room for the mobile tab bar */
}

@media (min-width: 992px) {
  .app-main { padding-bottom: 2rem; }
}

.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
}

/* ---------- Cards ---------- */

.card {
  border: 1px solid rgba(29, 34, 51, 0.08);
  box-shadow: 0 1px 2px rgba(29, 34, 51, 0.04), 0 8px 24px -16px rgba(29, 34, 51, 0.25);
}

[data-bs-theme="dark"] .card {
  border-color: rgba(255, 255, 255, 0.08);
}

.card-link-plain {
  text-decoration: none;
  color: inherit;
  display: block;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card-link-plain:hover,
.card-link-plain:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(29, 34, 51, 0.06), 0 16px 32px -20px rgba(29, 34, 51, 0.4);
}

.stat-card .stat-value {
  font-size: clamp(1.6rem, 5vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.stat-card .stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bs-secondary-color);
}

/* ---------- Article images ---------- */

.article-thumb {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
  background: rgba(29, 34, 51, 0.04);
}

.article-thumb-placeholder {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background: var(--bb-gradient);
  opacity: 0.15;
}

.article-gallery img {
  aspect-ratio: 1;
  object-fit: cover;
  width: 100%;
  border-radius: var(--bs-border-radius);
}

/* ---------- Colour swatch ---------- */

.swatch {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: 1px solid rgba(29, 34, 51, 0.25);
  vertical-align: -0.15em;
  flex: none;
}

.swatch-lg { width: 1.5rem; height: 1.5rem; }

.color-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  border: 1px solid rgba(29, 34, 51, 0.15);
}

/* ---------- Size x colour matrix ---------- */

.matrix-wrapper { overflow-x: auto; }

.matrix {
  border-collapse: separate;
  border-spacing: 0.35rem;
  min-width: max-content;
}

.matrix th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--bs-secondary-color);
  font-weight: 700;
  text-align: center;
  padding: 0.25rem 0.5rem;
  white-space: nowrap;
}

.matrix th.matrix-row-head {
  text-align: left;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.875rem;
  color: var(--bs-body-color);
}

.matrix-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 3.75rem;
  min-height: 3.25rem;
  padding: 0.4rem 0.5rem;
  border-radius: 0.6rem;
  border: 1px solid rgba(29, 34, 51, 0.1);
  text-decoration: none;
  color: inherit;
  line-height: 1.15;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.matrix-cell:hover { transform: scale(1.04); border-color: var(--bb-ink); }

.matrix-cell .count { font-weight: 800; font-size: 1.15rem; }
.matrix-cell .reserved { font-size: 0.7rem; color: var(--bs-secondary-color); }
.matrix-cell .backordered { font-size: 0.7rem; color: var(--bs-warning-text-emphasis); }

.matrix-cell.is-empty { opacity: 0.45; }
.matrix-cell.is-out { background: rgba(229, 57, 53, 0.1); border-color: rgba(229, 57, 53, 0.35); }
.matrix-cell.is-low { background: rgba(245, 166, 35, 0.14); border-color: rgba(245, 166, 35, 0.45); }
.matrix-cell.is-ok  { background: rgba(139, 197, 63, 0.14); border-color: rgba(139, 197, 63, 0.4); }
.matrix-cell.is-missing { border-style: dashed; background: transparent; }

/* ---------- Movement kinds ---------- */

.kind-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  font-size: 0.8125rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

.kind-in  { background: rgba(139, 197, 63, 0.18); color: #4a7314; }
.kind-out { background: rgba(229, 57, 53, 0.14); color: #a52a27; }
.kind-neutral { background: rgba(37, 179, 209, 0.16); color: #12657a; }

[data-bs-theme="dark"] .kind-in  { color: #b6e06f; }
[data-bs-theme="dark"] .kind-out { color: #ff8a86; }
[data-bs-theme="dark"] .kind-neutral { color: #7ad9f0; }

.quantity-delta { font-variant-numeric: tabular-nums; font-weight: 700; }

/* ---------- Audit timeline ---------- */

.trail { list-style: none; margin: 0; padding: 0; }

.trail-item {
  position: relative;
  padding: 0 0 1.25rem 1.75rem;
  border-left: 2px solid rgba(29, 34, 51, 0.12);
}

.trail-item:last-child { border-left-color: transparent; padding-bottom: 0; }

.trail-item::before {
  content: "";
  position: absolute;
  left: -0.4rem;
  top: 0.3rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--bb-cyan);
  border: 2px solid var(--bs-body-bg);
}

.trail-item.is-destructive::before { background: var(--bb-red); }
.trail-item.is-additive::before { background: var(--bb-green); }
.trail-item.is-session::before { background: var(--bb-purple); }

.trail-diff {
  font-size: 0.8125rem;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  background: rgba(29, 34, 51, 0.04);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  margin-top: 0.4rem;
}

[data-bs-theme="dark"] .trail-diff { background: rgba(255, 255, 255, 0.05); }

.trail-diff del { color: #a52a27; text-decoration: line-through; }
.trail-diff ins { color: #4a7314; text-decoration: none; }

/* ---------- Mobile tab bar ---------- */

.tabbar {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 1030;
  display: flex;
  background: var(--bs-body-bg);
  border-top: 1px solid rgba(29, 34, 51, 0.1);
  padding-bottom: env(safe-area-inset-bottom);
}

.tabbar a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 0.55rem 0.25rem;
  font-size: 0.6875rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--bs-secondary-color);
}

.tabbar a i { font-size: 1.25rem; }
.tabbar a.active { color: var(--bb-ink); }
.tabbar a.active i { color: var(--bb-pink); }

[data-bs-theme="dark"] .tabbar a.active { color: #fff; }

@media (min-width: 992px) {
  .tabbar { display: none; }
}

/* ---------- Login ---------- */

.login-shell {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: radial-gradient(120% 100% at 50% 0%, rgba(37, 179, 209, 0.14), transparent 60%), #f6f7fb;
}

[data-bs-theme="dark"] .login-shell {
  background: radial-gradient(120% 100% at 50% 0%, rgba(37, 179, 209, 0.16), transparent 60%), #14161d;
}

.login-card { width: 100%; max-width: 26rem; }

/* ---------- Misc ---------- */

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--bs-secondary-color);
}

.empty-state i { font-size: 2.5rem; opacity: 0.4; display: block; margin-bottom: 0.75rem; }

.table > :not(caption) > * > * { padding: 0.75rem 0.6rem; }

.tabular { font-variant-numeric: tabular-nums; }

.sticky-actions {
  position: sticky;
  bottom: 4.5rem;
  z-index: 5;
}

@media (min-width: 992px) {
  .sticky-actions { position: static; }
}

@media (prefers-reduced-motion: reduce) {
  .card-link-plain, .matrix-cell { transition: none; }
  .card-link-plain:hover, .matrix-cell:hover { transform: none; }
}