/* ── Shared primary button (reused by products & product form) ───────────── */
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  font-size: 1rem;
  cursor: pointer;
}

/* ── Login screen ─────────────────────────────────────────────────────────
   Palette: ink #0E1726 · ink-2 #16223A · line #22304A · paper #F5F7FA
   Type: Montserrat (display) · Inter (UI) · Space Mono (data)             */
.auth {
  --ink: #0e1726;
  --ink-2: #16223a;
  --line: #22304a;
  --paper: #f5f7fa;
  --on-ink: #e6ecf5;
  --on-ink-dim: #8698b5;
  font-family: 'Inter', system-ui, sans-serif;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  color: var(--color-text);
}

/* Left brand panel ------------------------------------------------------- */
.auth__brand {
  position: relative;
  overflow: hidden;
  background: radial-gradient(120% 90% at 12% 0%, #1b2a46 0%, var(--ink) 55%);
  color: var(--on-ink);
  padding: clamp(28px, 4vw, 56px);
  display: flex;
  flex-direction: column;
  gap: clamp(20px, 3vw, 34px);
}
.brand__head { display: flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 11px;
  color: #cfe0ff;
  background: linear-gradient(160deg, #223860, #16233c);
  border: 1px solid var(--line);
}
.brand__mark svg { width: 22px; height: 22px; }
.brand__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand__name small { font-family: var(--font-body); font-weight: 400; font-size: 0.68rem; letter-spacing: 0; color: var(--on-ink-dim); }

.brand__eyebrow {
  font-family: 'Space Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--on-ink-dim);
  margin: 0 0 14px;
}
.brand__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 3.4vw, 3rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--on-ink);
}
.brand__sub {
  margin: 16px 0 0;
  max-width: 42ch;
  color: var(--on-ink-dim);
  font-size: 1rem;
  line-height: 1.55;
}
.brand__lede { margin-top: auto; }

/* Signature: the stock board -------------------------------------------- */
.board {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 8px;
}
.cell {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: 7px;
  background: #101d33;
  border: 1px solid var(--line);
  overflow: hidden;
}
.cell__bar {
  position: absolute;
  inset: auto 0 0 0;
  display: block;
  border-radius: 0 0 6px 6px;
  opacity: 0.9;
}
.cell__dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 6px; height: 6px;
  border-radius: 50%;
}
.cell--healthy .cell__bar { background: color-mix(in srgb, var(--status-healthy) 55%, transparent); }
.cell--healthy .cell__dot { background: var(--status-healthy); }
.cell--low .cell__bar { background: color-mix(in srgb, var(--status-low) 60%, transparent); }
.cell--low .cell__dot { background: var(--status-low); }
.cell--out .cell__bar { background: color-mix(in srgb, var(--status-out) 60%, transparent); }
.cell--out .cell__dot { background: var(--status-out); }

@media (prefers-reduced-motion: no-preference) {
  .cell--pulse .cell__dot { animation: dot-pulse 2.6s ease-in-out infinite; }
  @keyframes dot-pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 currentColor; }
    50% { opacity: 0.55; box-shadow: 0 0 0 4px color-mix(in srgb, currentColor 22%, transparent); }
  }
  .cell--low .cell__dot { color: var(--status-low); }
  .cell--out .cell__dot { color: var(--status-out); }
}

/* Recent-movement log ---------------------------------------------------- */
.log__title {
  font-family: 'Space Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.68rem;
  color: var(--on-ink-dim);
  margin: 0 0 10px;
}
.log__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.log__row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.86rem;
}
.log__sku { font-family: 'Space Mono', monospace; font-size: 0.74rem; color: var(--on-ink-dim); }
.log__label { color: var(--on-ink); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.log__delta { font-family: 'Space Mono', monospace; font-weight: 700; font-size: 0.82rem; }
.log__delta--in { color: var(--status-healthy); }
.log__delta--out { color: var(--on-ink-dim); }
.log__delta--low { color: var(--status-low); text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.68rem; }

/* Right sign-in panel ---------------------------------------------------- */
.auth__panel {
  background: var(--paper);
  display: grid;
  place-items: center;
  padding: clamp(28px, 5vw, 48px);
}
.signin { width: 100%; max-width: 340px; }
.signin__eyebrow {
  font-family: 'Space Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--color-primary);
  margin: 0 0 10px;
}
.signin__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 8px;
}
.signin__sub { margin: 0 0 26px; color: var(--color-muted); font-size: 0.98rem; }

.gbtn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 13px 18px;
  background: #fff;
  color: #1f2430;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}
.gbtn:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(16, 24, 40, 0.12); border-color: #cdd6e4; }
.gbtn:active { transform: translateY(0); }
.gbtn:focus-visible { outline: 3px solid color-mix(in srgb, var(--color-primary) 45%, transparent); outline-offset: 2px; }
.gbtn:disabled { opacity: 0.7; cursor: default; transform: none; box-shadow: none; }
.gbtn__g { width: 18px; height: 18px; flex: none; }

.segmented {
  display: flex;
  gap: 4px;
  padding: 4px;
  margin: 4px 0 20px;
  background: color-mix(in srgb, var(--color-border) 45%, var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  box-shadow: inset 0 1px 2px rgba(16, 24, 40, 0.06);
}
.segmented__btn {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-muted);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.segmented__btn:not(.is-active):hover {
  background: color-mix(in srgb, var(--color-surface) 65%, transparent);
  color: var(--color-text);
}
.segmented__btn:focus-visible {
  outline: none;
  border-color: color-mix(in srgb, var(--color-primary) 40%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 18%, transparent);
}
.segmented__btn.is-active {
  background: var(--color-surface);
  color: var(--color-primary-ink);
  border-color: var(--color-border);
  box-shadow: 0 1px 3px rgba(16, 24, 40, 0.12), 0 1px 2px rgba(16, 24, 40, 0.06);
}
.signin__pane[hidden] { display: none; }
.signin__or {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 16px 0;
  color: var(--color-faint);
  font-size: 0.78rem;
}
.signin__or::before, .signin__or::after { content: ''; flex: 1; height: 1px; background: var(--color-border); }
.cred-form { display: flex; flex-direction: column; gap: 14px; }
.btn--block { width: 100%; justify-content: center; padding: 11px 14px; }

.signin__hint { margin: 18px 0 0; font-size: 0.85rem; color: var(--color-muted); }
.signin__hint[hidden] { display: none; }
.signin__foot { margin: 6px 0 0; font-family: 'Space Mono', monospace; font-size: 0.72rem; color: #9aa6b8; }

/* Responsive: stack on narrow screens ------------------------------------ */
@media (max-width: 860px) {
  .auth { grid-template-columns: 1fr; }
  .auth__brand { gap: 22px; }
  .board { grid-template-columns: repeat(12, 1fr); }
  .log { display: none; }
  .auth__panel { padding-top: 40px; padding-bottom: 48px; }
}
@media (max-width: 480px) {
  .board { grid-template-columns: repeat(8, 1fr); }
}