/* ==========================================================================
   Nexus TCG — admin panel stylesheet
   Shares the storefront design tokens; utilitarian layout tuned for forms.
   ========================================================================== */

:root {
  --c-bg: #FAFAF8;
  --c-surface: #FFFFFF;
  --c-surface-alt: #F2F2EF;
  --c-ink: #101013;
  --c-ink-2: #55555E;
  --c-line: #E4E4DF;
  --c-accent: #036FB8;
  --c-accent-dark: #02598F;
  --c-danger: #C2352B;
  --c-danger-dark: #A32A21;

  --font-display: "Montserrat", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;

  --radius: 4px;
  --shadow-card: 0 1px 2px rgba(16, 16, 19, 0.06);
  --shadow-lift: 0 12px 32px rgba(16, 16, 19, 0.10);
  --speed: 200ms;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

/* The hidden attribute must always win, even over display rules on classes. */
[hidden] { display: none !important; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-ink);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; }

h1 { font-size: 1.5rem; font-weight: 800; }
h2 { font-size: 1.25rem; font-weight: 700; }
h3 { font-size: 1.0625rem; font-weight: 600; }

:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--speed) ease-out, border-color var(--speed) ease-out,
              color var(--speed) ease-out, opacity var(--speed) ease-out;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn--primary { background: var(--c-ink); color: #fff; }
.btn--primary:hover:not(:disabled) { background: var(--c-accent-dark); }

.btn--ghost { border-color: var(--c-line); color: var(--c-ink); background: var(--c-surface); }
.btn--ghost:hover:not(:disabled) { border-color: var(--c-ink); }

.btn--danger { background: transparent; border-color: var(--c-danger); color: var(--c-danger); }
.btn--danger:hover:not(:disabled) { background: var(--c-danger); color: #fff; }

.btn--small { min-height: 40px; padding: 8px 16px; font-size: 0.8125rem; }

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

.login {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login__card {
  width: 100%;
  max-width: 400px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.login__card img { width: 74px; margin-bottom: 4px; }

.login__card label { font-weight: 500; font-size: 0.875rem; }

.login__field { display: flex; gap: 8px; }

.login__field input { flex: 1; }

.login__toggle {
  background: var(--c-surface-alt);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 0 14px;
  min-height: 44px;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--c-ink-2);
}

.login__card .btn { margin-top: 8px; }

/* --- Topbar & tabs -------------------------------------------------------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px clamp(20px, 4vw, 40px);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-line);
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.1em;
  font-size: 0.9375rem;
}

.topbar__brand em {
  font-style: normal;
  font-weight: 600;
  color: var(--c-accent);
  letter-spacing: 0.02em;
}

.topbar__actions { display: flex; gap: 8px; }

.tabs {
  display: flex;
  gap: 4px;
  padding: 0 clamp(20px, 4vw, 40px);
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-line);
  overflow-x: auto;
}

.tabs__tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 14px 18px;
  min-height: 48px;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-ink-2);
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--speed) ease-out, border-color var(--speed) ease-out;
}

.tabs__tab:hover { color: var(--c-ink); }

.tabs__tab.is-active {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
}

/* --- Panels --------------------------------------------------------------- */

.content {
  max-width: 960px;
  margin: 0 auto;
  padding: clamp(24px, 4vw, 40px) clamp(20px, 4vw, 40px) 80px;
}

.panel__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.panel__sub { font-size: 0.875rem; color: var(--c-ink-2); }

/* --- Product list --------------------------------------------------------- */

.product-list { display: grid; gap: 12px; }

.product-row {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 12px 16px;
}

.product-row__thumb {
  width: 72px;
  height: 54px;
  object-fit: contain;
  background: var(--c-surface-alt);
  border: 1px solid var(--c-line);
  border-radius: 3px;
  flex-shrink: 0;
}

.product-row__thumb--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6875rem;
  color: var(--c-ink-2);
}

.product-row__info { flex: 1; min-width: 0; }

.product-row__name {
  font-weight: 600;
  font-size: 0.9375rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-row__meta { font-size: 0.8125rem; color: var(--c-ink-2); }

.product-row__status {
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.product-row__status--soon { background: var(--c-surface-alt); color: var(--c-ink-2); }
.product-row__status--available { background: #E3F0FA; color: var(--c-accent-dark); }

.product-list__empty {
  text-align: center;
  padding: 48px 24px;
  border: 1px dashed var(--c-line);
  border-radius: var(--radius);
  color: var(--c-ink-2);
  font-size: 0.9375rem;
}

/* --- Editor / forms ------------------------------------------------------- */

.editor {
  margin-top: 24px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: clamp(20px, 3vw, 32px);
}

.editor h3 { margin-bottom: 20px; }

.editor__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.field { display: flex; flex-direction: column; gap: 6px; }

.field--wide { grid-column: 1 / -1; }

.field label,
.field__label-text {
  font-weight: 500;
  font-size: 0.875rem;
}

.req { color: var(--c-danger); }

.field input,
.field select,
.field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--c-ink);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 10px 14px;
  min-height: 44px;
  width: 100%;
  transition: border-color var(--speed) ease-out;
}

.field textarea { min-height: 0; resize: vertical; }

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--c-accent);
  outline: none;
}

.field input.is-invalid,
.field textarea.is-invalid { border-color: var(--c-danger); }

.field-help { font-size: 0.8125rem; color: var(--c-ink-2); }

.field-error {
  font-size: 0.8125rem;
  color: var(--c-danger);
  font-weight: 500;
}

.editor__image-row {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.editor__preview {
  width: 160px;
  height: 110px;
  object-fit: contain;
  background: var(--c-surface-alt);
  border: 1px solid var(--c-line);
  border-radius: 3px;
}

.editor__image-controls { flex: 1; min-width: 220px; display: grid; gap: 8px; }

/* Native file inputs are unstylable; hide it and let its label act as the button. */
.editor__file-label { position: relative; overflow: hidden; }

.editor__file-label input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.editor__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--c-line);
}

.editor__actions .btn--danger { margin-left: auto; }

/* --- Toast ---------------------------------------------------------------- */

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  background: var(--c-ink);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lift);
  font-size: 0.9375rem;
  max-width: min(90vw, 480px);
  text-align: center;
}

.toast--error { background: var(--c-danger); }

/* --- Responsive ----------------------------------------------------------- */

@media (max-width: 640px) {
  .editor__grid { grid-template-columns: 1fr; }

  .product-row { flex-wrap: wrap; }

  .product-row__actions { width: 100%; }

  .editor__actions .btn--danger { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}