/* Epoch — Snapshot Registry */

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

:root {
  --surface: #fcfcfc;
  --surface-raised: #f6f7f8;
  --surface-sunken: #f0f1f3;
  --border: #e2e4e8;
  --border-subtle: #eceef1;
  --text-primary: #18191b;
  --text-secondary: #555a63;
  --text-tertiary: #8b8f98;
  --text-faint: #b0b4bc;
  --accent: #1a56db;
  --accent-text: #1746b0;
  --accent-surface: #eef3fc;
  --accent-border: #c5d5f0;
  --green: #0f7b5f;
  --green-surface: #edf7f3;
  --red: #c4280e;
  --red-surface: #fcf0ed;
  --amber: #a85d00;
  --amber-surface: #fdf5e8;
  --radius: 8px;
  --radius-sm: 5px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "SF Mono", "Cascadia Code", "Fira Code", "Consolas", monospace;
}

body {
  font-family: var(--font);
  background: var(--surface);
  color: var(--text-primary);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout */
.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 32px);
  padding-bottom: 80px;
}

/* Header */
.header {
  padding: 16px 0;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-mark {
  width: 28px;
  height: 28px;
  background: var(--text-primary);
  border-radius: 6px;
  display: grid;
  place-items: center;
  color: var(--surface);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.2px;
}

.logo-sub {
  font-size: 11px;
  color: var(--text-faint);
  padding-left: 8px;
  border-left: 1px solid var(--border);
  margin-left: 2px;
}

nav {
  display: flex;
  gap: 1px;
  background: var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2px;
}

nav a {
  padding: 5px 14px;
  border-radius: 4px;
  text-decoration: none;
  color: var(--text-tertiary);
  font-size: 13px;
  font-weight: 500;
  transition: color 120ms, background 120ms;
}

nav a:hover {
  color: var(--text-secondary);
}

nav a.active {
  color: var(--text-primary);
  background: var(--surface);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

/* Page header */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.page-title {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.3px;
  margin-bottom: 28px;
  color: var(--text-primary);
}

.page-title small {
  font-weight: 400;
  color: var(--text-tertiary);
  font-size: 13px;
  margin-left: 6px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-faint);
  margin-bottom: 12px;
}

.breadcrumb a {
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color 120ms;
}

.breadcrumb a:hover {
  color: var(--accent-text);
}

.breadcrumb .sep::before {
  content: "/";
}

/* Stats row */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 40px;
}

.stat-card {
  background: var(--surface);
  padding: 20px 22px 18px;
}

.stat-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.stat-value.accent {
  color: var(--accent-text);
}

/* Section */
.section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  margin-bottom: 10px;
}

/* Table */
.table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

thead {
  background: var(--surface-raised);
}

th {
  text-align: left;
  padding: 8px 14px;
  font-weight: 500;
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

tr:last-child td {
  border-bottom: none;
}

tbody tr {
  transition: background 100ms;
}

tbody tr:hover {
  background: var(--surface-raised);
}

.clickable-row {
  cursor: pointer;
}

/* Cell variants */
.cell-name {
  font-weight: 500;
  color: var(--accent-text);
}

.clickable-row:hover .cell-name {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cell-mono {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-tertiary);
}

.cell-size {
  font-family: var(--mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
}

.cell-time {
  color: var(--text-tertiary);
  font-size: 12px;
}

.cell-count {
  display: inline-block;
  min-width: 22px;
  text-align: center;
  padding: 1px 7px;
  background: var(--surface-sunken);
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
}

/* Badge */
.badge {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.badge-snapshot {
  background: var(--accent-surface);
  color: var(--accent-text);
}

.badge-cloudimg {
  background: var(--green-surface);
  color: var(--green);
}

.badge-oci {
  background: var(--amber-surface);
  color: var(--amber);
}

/* Detail grid */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
}

.detail-card {
  background: var(--surface);
  padding: 14px 16px;
}

.detail-card.span-2 {
  grid-column: span 2;
}

.detail-card.full {
  grid-column: 1 / -1;
}

.detail-label {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 3px;
}

.detail-value {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.detail-value.mono {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-secondary);
  word-break: break-all;
  line-height: 1.5;
}

/* Pull command */
.pull-cmd {
  background: var(--text-primary);
  color: #d4d6db;
  border-radius: var(--radius);
  padding: 11px 16px;
  font-family: var(--mono);
  font-size: 12.5px;
  margin-bottom: 28px;
  overflow-x: auto;
  line-height: 1.4;
}

.pull-cmd .prompt {
  color: #7a7e87;
  user-select: none;
}

.pull-cmd .cmd {
  color: #93c5a4;
}

.pull-cmd .arg {
  color: #e0c684;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 100ms, border-color 100ms, color 100ms;
  font-family: inherit;
}

.btn:hover {
  background: var(--surface-raised);
  color: var(--text-primary);
}

.btn:active {
  background: var(--surface-sunken);
}

.btn:disabled {
  opacity: 0.5;
  cursor: default;
}

.btn-danger {
  color: var(--red);
  border-color: color-mix(in srgb, var(--red) 30%, transparent);
}

.btn-danger:hover {
  background: var(--red-surface);
  border-color: color-mix(in srgb, var(--red) 40%, transparent);
  color: var(--red);
}

.btn-primary {
  background: var(--text-primary);
  color: var(--surface);
  border-color: var(--text-primary);
}

.btn-primary:hover {
  background: #2c2d30;
}

/* Layer bar */
.layer-bar {
  height: 4px;
  background: var(--surface-sunken);
  border-radius: 2px;
  overflow: hidden;
}

.layer-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 500ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 64px;
  color: var(--text-faint);
  font-size: 13px;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--text-tertiary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Empty state */
.empty {
  padding: 80px 24px;
  text-align: center;
}

.empty-text {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.6;
}

.empty-text code {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--surface-raised);
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid var(--border-subtle);
}

/* Content entrance */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.view-enter {
  animation: fadeUp 250ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* Responsive */
@media (max-width: 768px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .detail-grid {
    grid-template-columns: 1fr;
  }
  .detail-card.span-2 {
    grid-column: span 1;
  }
}

@media (max-width: 480px) {
  .stats {
    grid-template-columns: 1fr;
  }
  nav {
    gap: 1px;
  }
  nav a {
    padding: 5px 10px;
    font-size: 12px;
  }
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}