/* Modern, high-performance styling matching the extension */

:root {
  --bg: #0f1115;
  --surface: #181b21;
  --surface-2: #222630;
  --surface-hover: #292e3b;
  --line: #2d3342;
  --line-strong: #3f475c;
  --ink: #e6edf3;
  --ink-2: #8b949e;
  --ink-3: #6e7681;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-ink: #ffffff;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 8px;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f8fa;
    --surface: #ffffff;
    --surface-2: #f0f2f5;
    --surface-hover: #e4e7eb;
    --line: #d0d7de;
    --line-strong: #afb8c1;
    --ink: #1f2328;
    --ink-2: #656d76;
    --ink-3: #8c959f;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  }
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  min-height: 100vh;
}

/* Author display rules must respect the portal's visibility state. */
[hidden] {
  display: none !important;
}

/* Auth Modal */
.auth-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.auth-card__header {
  text-align: center;
}

.auth-card__logo {
  font-size: 40px;
  line-height: 1;
  margin-bottom: 8px;
}

.auth-card__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
}

.auth-card__subtitle {
  font-size: 13px;
  color: var(--ink-2);
  margin-top: 4px;
}

.auth-card__form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-2);
}

.field {
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 6px;
  outline: none;
  transition: border-color 0.15s;
}

.field:focus {
  border-color: var(--accent);
}

.auth-card__actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.auth-card__actions .btn {
  flex: 1;
}

.auth-card__error {
  padding: 8px 12px;
  border-radius: 6px;
  background: rgba(220, 38, 38, 0.15);
  border: 1px solid rgba(220, 38, 38, 0.3);
  color: #ef4444;
  font-size: 13px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.btn:hover {
  background: var(--surface-hover);
  border-color: var(--line-strong);
}

.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.btn--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn--small {
  padding: 4px 10px;
  font-size: 12px;
}

.btn--ghost {
  background: transparent;
  border-color: transparent;
}

.btn--ghost:hover {
  background: var(--surface-2);
}

/* App Layout */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 16px;
}

.topbar__logo {
  font-size: 20px;
}

.topbar__controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.search {
  position: relative;
  display: flex;
  align-items: center;
}

.search__icon {
  position: absolute;
  left: 10px;
  width: 16px;
  height: 16px;
  color: var(--ink-2);
  pointer-events: none;
}

.search__input {
  padding-left: 34px;
  width: 260px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 8px;
  border-left: 1px solid var(--line);
}

.user-badge__name {
  font-size: 13px;
  font-weight: 600;
}

/* Main Area */
.main {
  max-width: 1600px;
  margin: 0 auto;
  padding: 16px 20px 60px;
}

.chips {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 12px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--ink-2);
  border-radius: 16px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
}

.chip:hover, .chip.is-active {
  background: var(--surface-hover);
  color: var(--ink);
  border-color: var(--accent);
}

.chip__count {
  background: var(--surface-2);
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 11px;
}

.viewbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--ink-2);
}

/* Layout Modes */
.grid {
  display: grid;
  gap: 12px;
}

/* 1. Grid (Cards) */
.grid[data-layout="grid"] {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.tile {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.tile:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
}

.tile__header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tile__avatar {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  background: hsl(var(--hue, 210), 65%, 45%);
  flex: none;
}

.tile__info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1;
}

.tile__title {
  font-size: 14px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tile__url {
  font-size: 12px;
  color: var(--ink-2);
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tile__url:hover {
  color: var(--accent);
  text-decoration: underline;
}

.tile__badges {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.badge {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--ink-2);
  border: 1px solid var(--line);
}

.badge--folder {
  background: rgba(37, 99, 235, 0.1);
  color: #60a5fa;
  border-color: rgba(37, 99, 235, 0.25);
}

/* 2. Columns */
.grid[data-layout="columns"] {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 8px;
}

.grid[data-layout="columns"] .tile {
  padding: 8px 12px;
  flex-direction: row;
  align-items: center;
}

.grid[data-layout="columns"] .tile__avatar {
  width: 24px;
  height: 24px;
  font-size: 11px;
}

/* 3. List */
.grid[data-layout="list"] {
  grid-template-columns: 1fr;
  gap: 4px;
}

.grid[data-layout="list"] .tile {
  padding: 8px 16px;
  flex-direction: row;
  align-items: center;
}

.grid[data-layout="list"] .tile:hover {
  transform: none;
}

/* 4. Compact */
.grid[data-layout="compact"] {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 4px;
}

.grid[data-layout="compact"] .tile {
  padding: 5px 10px;
  flex-direction: row;
  align-items: center;
}

.grid[data-layout="compact"] .tile__avatar {
  display: none;
}

/* Empty State */
.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-2);
  font-size: 15px;
}

/* Toasts */
.toasts {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 1000;
}

.toast {
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow);
  color: #fff;
  background: var(--surface-2);
  border: 1px solid var(--line);
  animation: slideUp 0.2s ease;
}

.toast--ok {
  background: #166534;
  border-color: #22c55e;
}

.toast--error {
  background: #991b1b;
  border-color: #ef4444;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}