/* app/app.css
 *
 * App chrome styles. Consumes ONLY the theme contract tokens
 * (--brand-*, see theme/theme.contract.css) for brand-specific colour/typography
 * so a brand overlay restyles the whole app. App-level neutral tokens (surface,
 * border, muted, radius, shadow) are derived here and get a dark-mode override.
 * No branding, no hardcoded brand colours.
 */

:root {
  /* Neutral app tokens (light). Derived, not brand — overridden in dark mode. */
  --app-surface: #ffffff;
  --app-surface-2: #f6f7f9;
  --app-border: #e4e7ec;
  --app-muted: #6b7280;
  --app-fg: var(--brand-fg);
  --app-bg: var(--brand-bg);
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.1);
  --shadow-lg: 0 12px 32px rgba(16, 24, 40, 0.18);
  --ok: #16a34a;
  --ok-bg: #dcfce7;
  --err: #dc2626;
  --err-bg: #fee2e2;
  --sidenav-w: 240px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --app-bg: #0f1117;
    --app-fg: #e5e7eb;
    --app-surface: #171a21;
    --app-surface-2: #1e222b;
    --app-border: #2a2f3a;
    --app-muted: #9aa1ac;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
    --ok-bg: #14311f;
    --err-bg: #3a1a1a;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--app-bg);
  color: var(--app-fg);
  font-family: var(--brand-font);
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  line-height: 1.5;
}

h1, h2, h3 { font-family: var(--brand-font-heading); }

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
  background: var(--app-surface-2);
  padding: 0.1em 0.4em;
  border-radius: 6px;
}

.icn { display: inline-block; vertical-align: -0.15em; flex: none; }
.muted { color: var(--app-muted); }
.hide-sm { display: inline; }

/* --- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5em;
  font: inherit; font-weight: 600;
  padding: 0.55em 1em; border-radius: var(--radius-sm);
  border: 1px solid transparent; cursor: pointer;
  background: var(--app-surface-2); color: var(--app-fg);
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  white-space: nowrap;
}
.btn:hover { background: var(--app-border); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn--primary { background: var(--brand-primary); color: #fff; }
.btn--primary:hover { background: var(--brand-primary); filter: brightness(1.1); }
.btn--outline { background: transparent; border-color: var(--app-border); }
.btn--outline:hover { background: var(--app-surface-2); }
.btn--ghost { background: transparent; }
.btn--ghost:hover { background: var(--app-surface-2); }
.btn--block { width: 100%; justify-content: center; }
.btn--sm { padding: 0.35em 0.7em; font-size: 0.85em; }

.iconbtn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  border: none; background: transparent; color: inherit; cursor: pointer;
}
.iconbtn:hover { background: var(--app-surface-2); }

.badge {
  display: inline-flex; align-items: center; gap: 0.3em;
  font-size: 0.72rem; font-weight: 700; text-transform: lowercase;
  padding: 0.2em 0.6em; border-radius: 999px;
}
.badge--ok { background: var(--ok-bg); color: var(--ok); }
.badge--muted { background: var(--app-surface-2); color: var(--app-muted); }

/* --- Login --------------------------------------------------------------- */
.login {
  min-height: 100%; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 1rem; padding: 2rem 1rem;
}
.login__card {
  width: 100%; max-width: 400px; background: var(--app-surface);
  border: 1px solid var(--app-border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 2rem;
}
.login__brand { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.25rem; }
.login__logo {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--brand-primary); color: #fff;
}
.login__title { margin: 0; font-size: 1.4rem; }
.login__subtitle { margin: 0; color: var(--app-muted); font-size: 0.85rem; }
.login__lede { color: var(--app-muted); font-size: 0.92rem; margin: 0 0 1.25rem; }
.login__divider { text-align: center; margin: 1rem 0; position: relative; color: var(--app-muted); font-size: 0.8rem; }
.login__divider::before, .login__divider::after {
  content: ""; position: absolute; top: 50%; width: 40%; height: 1px; background: var(--app-border);
}
.login__divider::before { left: 0; }
.login__divider::after { right: 0; }
.login__divider span { background: var(--app-surface); padding: 0 0.5rem; }
.login__meta { margin: 1.25rem 0 0; font-size: 0.78rem; color: var(--app-muted); word-break: break-all; }
.login__foot { color: var(--app-muted); font-size: 0.78rem; }
.btn + .btn--block { margin-top: 0.5rem; }

/* --- Shell --------------------------------------------------------------- */
.shell { display: flex; min-height: 100vh; }
.sidenav {
  width: var(--sidenav-w); flex: none; background: var(--app-surface);
  border-right: 1px solid var(--app-border); display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.sidenav__head { display: flex; align-items: center; gap: 0.6rem; padding: 1.1rem 1.25rem; }
.sidenav__logo {
  display: flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 9px; background: var(--brand-primary); color: #fff;
}
.sidenav__name { font-weight: 700; }
.sidenav__nav { display: flex; flex-direction: column; gap: 2px; padding: 0.5rem; flex: 1; }
.navlink {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 0.65rem 0.8rem; border-radius: var(--radius-sm);
  color: var(--app-fg); text-decoration: none; font-weight: 500;
}
.navlink:hover { background: var(--app-surface-2); }
.navlink.is-active { background: var(--brand-primary); color: #fff; }
.sidenav__foot { padding: 1rem 1.25rem; border-top: 1px solid var(--app-border); }

.shell__main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.6rem 1rem; border-bottom: 1px solid var(--app-border);
  background: var(--app-surface); position: sticky; top: 0; z-index: 10;
}
.topbar__title { margin: 0; font-size: 1.1rem; }
.topbar__spacer { flex: 1; }
#nav-toggle { display: none; }

.content { padding: 1.5rem; flex: 1; outline: none; }

.scrim { display: none; }

/* --- Page + cards -------------------------------------------------------- */
.page { max-width: 960px; margin: 0 auto; display: flex; flex-direction: column; gap: 1.25rem; }
.page__toolbar { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.page__toolbar-actions { display: flex; gap: 0.5rem; }
.page__h2 { margin: 0; font-size: 1.25rem; }
.page__note { margin: 0.15rem 0 0; color: var(--app-muted); font-size: 0.85rem; }

.card {
  background: var(--app-surface); border: 1px solid var(--app-border);
  border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden;
}
.card__head { padding: 1.1rem 1.25rem 0.5rem; }
.card__head h2 { margin: 0; font-size: 1.05rem; display: flex; align-items: center; gap: 0.5rem; }
.card__sub { margin: 0.25rem 0 0; color: var(--app-muted); font-size: 0.85rem; }
.card__body { padding: 1rem 1.25rem 1.25rem; }
.card__actions { margin-top: 1rem; display: flex; gap: 0.5rem; }

/* --- Forms --------------------------------------------------------------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }
.field { display: flex; flex-direction: column; gap: 0.3rem; }
.field--wide { grid-column: 1 / -1; }
.field--check { flex-direction: row; align-items: center; gap: 0.5rem; }
.field > span { font-size: 0.82rem; font-weight: 600; color: var(--app-muted); }
.field em { font-style: normal; font-weight: 400; }
input, select {
  font: inherit; color: var(--app-fg); background: var(--app-bg);
  border: 1px solid var(--app-border); border-radius: var(--radius-sm);
  padding: 0.55em 0.7em; width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--brand-accent); outline-offset: -1px; border-color: var(--brand-accent); }
.inline-form { display: flex; gap: 0.6rem; align-items: flex-end; flex-wrap: wrap; }
.inline-form .field { flex: 1; min-width: 200px; }

/* --- Translate ----------------------------------------------------------- */
.translate-out { margin-top: 1rem; }
.translate-result {
  background: var(--app-surface-2); border: 1px solid var(--app-border);
  border-radius: var(--radius-sm); padding: 0.9rem 1rem;
}
.translate-result__label { font-size: 0.75rem; color: var(--app-muted); text-transform: uppercase; letter-spacing: 0.03em; }
.translate-result__text { font-size: 1.25rem; font-weight: 600; margin: 0.35rem 0 0.75rem; }

/* --- Versions ------------------------------------------------------------ */
.versions { margin-top: 1rem; display: flex; flex-direction: column; gap: 0.6rem; }
.version {
  border: 1px solid var(--app-border); border-radius: var(--radius-sm);
  padding: 0.8rem 1rem; display: grid; grid-template-columns: 1fr auto; gap: 0.5rem;
}
.version--current { border-color: var(--brand-accent); }
.version__title { display: flex; align-items: center; gap: 0.5rem; }
.version__name { font-weight: 600; }
.version__meta { color: var(--app-muted); font-size: 0.8rem; margin-top: 0.2rem; }
.version__actions { display: flex; gap: 0.4rem; align-items: start; }
.version__snap {
  grid-column: 1 / -1; margin: 0.5rem 0 0; padding: 0.75rem;
  background: var(--app-surface-2); border-radius: var(--radius-sm);
  overflow: auto; font-size: 0.8rem; max-height: 300px;
}

/* --- Table --------------------------------------------------------------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--app-border); border-radius: var(--radius); background: var(--app-surface); box-shadow: var(--shadow); }
.table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.table th, .table td { padding: 0.7rem 0.85rem; text-align: left; border-bottom: 1px solid var(--app-border); }
.table th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--app-muted); font-weight: 700; background: var(--app-surface-2); }
.table tbody tr:last-child td, .table tr:last-child td { border-bottom: none; }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.table .is-low { color: var(--err); font-weight: 700; }
.row-actions { display: flex; gap: 0.4rem; justify-content: flex-end; }

/* --- States -------------------------------------------------------------- */
.state { text-align: center; padding: 3rem 1.5rem; color: var(--app-muted); }
.state__icon { display: inline-flex; padding: 0.9rem; border-radius: 50%; background: var(--app-surface-2); color: var(--app-muted); margin-bottom: 0.75rem; }
.state__icon--error { background: var(--err-bg); color: var(--err); }
.state h3 { margin: 0 0 0.35rem; color: var(--app-fg); }
.state p { margin: 0 0 1rem; }
.state--loading .spinner { display: inline-block; color: var(--brand-accent); animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Modal --------------------------------------------------------------- */
.modal-scrim { position: fixed; inset: 0; background: rgba(16, 24, 40, 0.55); display: flex; align-items: flex-start; justify-content: center; padding: 3rem 1rem; z-index: 50; overflow-y: auto; }
.modal { background: var(--app-surface); border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; max-width: 560px; }
.modal__head { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.25rem; border-bottom: 1px solid var(--app-border); }
.modal__head h3 { margin: 0; font-size: 1.1rem; }
.modal__body { padding: 1.25rem; }
.modal__lede { margin: 0 0 1rem; color: var(--app-muted); }
.modal__actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1.25rem; }
.stock-current { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; margin-bottom: 1rem; }
.stock-current__cell { background: var(--app-surface-2); border-radius: var(--radius-sm); padding: 0.6rem; text-align: center; }
.stock-current__cell span { display: block; font-size: 0.72rem; color: var(--app-muted); text-transform: lowercase; }
.stock-current__cell strong { font-size: 1.1rem; }

/* --- Toast --------------------------------------------------------------- */
.toast-host { position: fixed; bottom: 1.25rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: 0.5rem; z-index: 100; }
.toast {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--app-fg); color: var(--app-bg);
  padding: 0.7rem 1rem; border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
  opacity: 0; transform: translateY(10px); transition: opacity 0.2s, transform 0.2s;
  font-size: 0.9rem; font-weight: 500; max-width: 90vw;
}
.toast.is-in { opacity: 1; transform: translateY(0); }
.toast--success { background: var(--ok); color: #fff; }
.toast--error { background: var(--err); color: #fff; }

/* --- Responsive ---------------------------------------------------------- */
@media (max-width: 800px) {
  .hide-sm { display: none; }
  #nav-toggle { display: inline-flex; }
  .form-grid { grid-template-columns: 1fr; }
  .sidenav {
    position: fixed; z-index: 40; left: 0; top: 0; height: 100vh;
    transform: translateX(-100%); transition: transform 0.2s;
    box-shadow: var(--shadow-lg);
  }
  .shell--nav-open .sidenav { transform: translateX(0); }
  .shell--nav-open .scrim { display: block; position: fixed; inset: 0; background: rgba(16,24,40,0.5); z-index: 35; }
  .content { padding: 1rem; }
  .stock-current { grid-template-columns: repeat(2, 1fr); }
}