/* ============================================================
   Krowl — main.css
   iOS-inspired glassmorphism design system
   Dark / Light theme · Accent color via CSS variable
   ============================================================ */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=SF+Pro+Display:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* Fallback stack that mimics SF Pro on non-Apple devices */
:root {
  --font-ui:   -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', 'Inter', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

/* ============================================================
   1. CSS CUSTOM PROPERTIES
   ============================================================ */

:root {
  /* Accent — overridden by JS from user/site settings */
  --accent:          #6c63ff;
  --accent-rgb:      108, 99, 255;
  --accent-light:    rgba(var(--accent-rgb), 0.15);
  --accent-medium:   rgba(var(--accent-rgb), 0.35);
  --accent-glow:     rgba(var(--accent-rgb), 0.5);

  /* Spacing scale */
  --s1:  4px;
  --s2:  8px;
  --s3:  12px;
  --s4:  16px;
  --s5:  20px;
  --s6:  24px;
  --s8:  32px;
  --s10: 40px;
  --s12: 48px;
  --s16: 64px;

  /* Border radius */
  --r-sm:   8px;
  --r-md:   14px;
  --r-lg:   20px;
  --r-xl:   28px;
  --r-full: 9999px;

  /* Transitions */
  --t-fast:   0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --t-base:   0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --t-slow:   0.4s  cubic-bezier(0.4, 0, 0.2, 1);
  --t-spring: 0.5s  cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-index layers */
  --z-base:    0;
  --z-card:    10;
  --z-overlay: 100;
  --z-modal:   200;
  --z-toast:   300;
  --z-top:     400;
}

/* ── Dark theme (default) ────────────────────────────────── */
[data-theme="dark"], :root {
  --bg-primary:   #0d0d14;
  --bg-secondary: #13131f;
  --bg-tertiary:  #1a1a2e;
  --bg-elevated:  #1e1e30;

  --glass-bg:          rgba(255, 255, 255, 0.06);
  --glass-bg-hover:    rgba(255, 255, 255, 0.10);
  --glass-bg-active:   rgba(255, 255, 255, 0.14);
  --glass-border:      rgba(255, 255, 255, 0.10);
  --glass-border-hover:rgba(255, 255, 255, 0.20);
  --glass-shadow:      0 8px 32px rgba(0, 0, 0, 0.4);
  --glass-shadow-lg:   0 24px 64px rgba(0, 0, 0, 0.6);

  --text-primary:   #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-tertiary:  #606075;
  --text-inverse:   #0d0d14;

  --border:         rgba(255, 255, 255, 0.08);
  --border-strong:  rgba(255, 255, 255, 0.16);

  --danger:         #ff453a;
  --danger-light:   rgba(255, 69, 58, 0.15);
  --success:        #32d74b;
  --success-light:  rgba(50, 215, 75, 0.15);
  --warning:        #ffd60a;
  --warning-light:  rgba(255, 214, 10, 0.15);

  --scrollbar-track: rgba(255,255,255,0.03);
  --scrollbar-thumb: rgba(255,255,255,0.12);
}

/* ── Light theme ─────────────────────────────────────────── */
[data-theme="light"] {
  --bg-primary:   #f2f2f7;
  --bg-secondary: #ffffff;
  --bg-tertiary:  #e5e5ea;
  --bg-elevated:  #ffffff;

  --glass-bg:           rgba(255, 255, 255, 0.72);
  --glass-bg-hover:     rgba(255, 255, 255, 0.85);
  --glass-bg-active:    rgba(255, 255, 255, 0.95);
  --glass-border:       rgba(0, 0, 0, 0.08);
  --glass-border-hover: rgba(0, 0, 0, 0.16);
  --glass-shadow:       0 8px 32px rgba(0, 0, 0, 0.10);
  --glass-shadow-lg:    0 24px 64px rgba(0, 0, 0, 0.18);

  --text-primary:   #1c1c1e;
  --text-secondary: #636366;
  --text-tertiary:  #aeaeb2;
  --text-inverse:   #ffffff;

  --border:         rgba(0, 0, 0, 0.08);
  --border-strong:  rgba(0, 0, 0, 0.16);

  --danger:         #ff3b30;
  --danger-light:   rgba(255, 59, 48, 0.12);
  --success:        #34c759;
  --success-light:  rgba(52, 199, 89, 0.12);
  --warning:        #ff9f0a;
  --warning-light:  rgba(255, 159, 10, 0.12);

  --scrollbar-track: rgba(0,0,0,0.03);
  --scrollbar-thumb: rgba(0,0,0,0.15);
}

/* ── No-glass fallback ───────────────────────────────────── */
[data-glass="false"] {
  --glass-bg:          var(--bg-elevated);
  --glass-bg-hover:    var(--bg-tertiary);
  --glass-border:      var(--border);
  --glass-shadow:      0 4px 16px rgba(0,0,0,0.2);
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-ui);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--t-base), color var(--t-base);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--t-fast);
}
a:hover { opacity: 0.8; }

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

ul, ol { list-style: none; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: var(--r-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-medium);
}

/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }
h4 { font-size: 1.1rem; }

.text-sm   { font-size: 0.8125rem; }
.text-xs   { font-size: 0.75rem; }
.text-muted { color: var(--text-secondary); }
.text-accent { color: var(--accent); }

/* ============================================================
   4. GLASSMORPHISM UTILITY CLASSES
   ============================================================ */

.glass {
  background:           var(--glass-bg);
  border:               1px solid var(--glass-border);
  box-shadow:           var(--glass-shadow);
  backdrop-filter:      blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  transition:
    background var(--t-base),
    border-color var(--t-base),
    box-shadow var(--t-base);
}

.glass:hover {
  background:   var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.glass-accent {
  border-color: var(--accent-medium);
  box-shadow:
    var(--glass-shadow),
    0 0 0 1px var(--accent-medium),
    0 0 20px var(--accent-light);
}

/* ============================================================
   5. LAYOUT PRIMITIVES
   ============================================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--s6);
}

.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--s2); }
.gap-3 { gap: var(--s3); }
.gap-4 { gap: var(--s4); }
.gap-6 { gap: var(--s6); }

/* ============================================================
   6. BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s2);
  padding: var(--s3) var(--s5);
  border-radius: var(--r-md);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition:
    background var(--t-fast),
    transform var(--t-fast),
    box-shadow var(--t-fast),
    opacity var(--t-fast);
  white-space: nowrap;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 6px 24px var(--accent-glow);
}

.btn-glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn-glass:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover { filter: brightness(1.1); }

.btn-ghost {
  color: var(--text-secondary);
  background: transparent;
}
.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--glass-bg);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--r-md);
  font-size: 1.1rem;
}

.btn-sm {
  padding: var(--s2) var(--s3);
  font-size: 0.8rem;
  border-radius: var(--r-sm);
}

.btn-lg {
  padding: var(--s4) var(--s8);
  font-size: 1rem;
  border-radius: var(--r-lg);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================================
   7. FORM ELEMENTS
   ============================================================ */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}

.form-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.form-input {
  width: 100%;
  padding: var(--s3) var(--s4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition:
    border-color var(--t-fast),
    box-shadow var(--t-fast),
    background var(--t-fast);
  outline: none;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
  background: var(--glass-bg-hover);
}

.form-input::placeholder { color: var(--text-tertiary); }

.form-input.error {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-light);
}

textarea.form-input {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23a0a0b8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--s3) center;
  padding-right: var(--s8);
  cursor: pointer;
}

.form-error {
  font-size: 0.8rem;
  color: var(--danger);
  display: flex;
  align-items: center;
  gap: var(--s1);
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

/* Toggle switch */
.toggle-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  padding: var(--s3) 0;
}

.toggle {
  position: relative;
  width: 51px;
  height: 31px;
  flex-shrink: 0;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--bg-tertiary);
  border-radius: var(--r-full);
  transition: background var(--t-fast);
  cursor: pointer;
}

.toggle input:checked + .toggle-track {
  background: var(--accent);
}

.toggle-track::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 25px;
  height: 25px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--t-spring);
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.toggle input:checked + .toggle-track::after {
  transform: translateX(20px);
}

/* Color picker row */
.color-swatch {
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  border: 2px solid var(--glass-border);
  cursor: pointer;
  transition: transform var(--t-fast), border-color var(--t-fast);
  flex-shrink: 0;
}
.color-swatch:hover {
  transform: scale(1.1);
  border-color: var(--accent);
}

/* ============================================================
   8. NAVIGATION BAR
   ============================================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-overlay);
  height: 56px;
  display: flex;
  align-items: center;
  padding: 0 var(--s6);
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(200%);
  -webkit-backdrop-filter: blur(24px) saturate(200%);
}

.navbar-brand {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--s2);
  margin-left: auto;
}

.avatar-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-light);
  border: 2px solid var(--accent-medium);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.avatar-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 0 3px var(--accent-light);
}

/* ============================================================
   9. BOOKMARK PAGE LAYOUT
   ============================================================ */

/* Full-viewport background */
.bookmark-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--bg-primary);
  transition: background var(--t-slow);
}

.bookmark-bg.gradient {
  background: var(--bm-bg-gradient, linear-gradient(135deg, #0f0c29, #302b63, #24243e));
}

.bookmark-bg.image {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.bookmark-bg.image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.3);
}

/* Clock / date display */
.bm-clock {
  position: fixed;
  top: calc(56px + var(--s8));
  left: var(--s8);
  z-index: var(--z-card);
  pointer-events: none;
  user-select: none;
}

.bm-clock-time {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 200;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  line-height: 1;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.bm-clock-date {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-top: var(--s2);
  text-shadow: 0 1px 8px rgba(0,0,0,0.3);
}

/* Cards grid */
.bookmark-grid {
  padding: calc(56px + var(--s6)) var(--s6) var(--s6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s4);
  align-content: flex-start;
  min-height: 100vh;
}

/* ── Has clock: push cards down ─ */
.bookmark-grid.has-clock {
  padding-top: calc(56px + 180px + var(--s6));
}

/* ============================================================
   10. BOOKMARK CARDS
   ============================================================ */

.bm-card {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition:
    transform var(--t-spring),
    box-shadow var(--t-base);
  will-change: transform;
}

/* Square card */
.bm-card.square {
  width: 120px;
  height: 120px;
}

/* Wide card */
.bm-card.wide {
  width: 252px;
  height: 120px;
}

/* Responsive sizes */
@media (max-width: 480px) {
  .bm-card.square { width: 96px;  height: 96px; }
  .bm-card.wide   { width: 200px; height: 96px; }
}

/* Card background layers */
.bm-card-bg {
  position: absolute;
  inset: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  transition: background var(--t-base);
}

.bm-card[data-bg-type="color"] .bm-card-bg {
  background: var(--card-bg-color, var(--glass-bg));
  backdrop-filter: none;
}

.bm-card[data-bg-type="gradient"] .bm-card-bg {
  background: var(--card-bg-gradient);
  backdrop-filter: none;
}

.bm-card[data-bg-type="image"] .bm-card-bg {
  background-image: var(--card-bg-image);
  background-size: cover;
  background-position: center;
  backdrop-filter: none;
}

/* Accent hue overlay */
.bm-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--accent-light) 0%,
    transparent 60%
  );
  z-index: 1;
  opacity: 0.6;
  pointer-events: none;
  transition: opacity var(--t-base);
}

.bm-card[data-glass="false"]::before { display: none; }

/* Card border */
.bm-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-xl);
  border: 1px solid var(--glass-border);
  pointer-events: none;
  z-index: 3;
  transition: border-color var(--t-base);
}

/* Hover expand */
.bm-card.hover-expand:hover {
  transform: scale(1.06);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4), 0 0 0 1px var(--accent-medium);
  z-index: var(--z-card);
}

.bm-card.hover-expand:hover::after {
  border-color: var(--accent-medium);
}

/* Card content */
.bm-card-content {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s2);
  padding: var(--s3);
}

.bm-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.bm-card-icon-fallback {
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.bm-card-title {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-primary);
  text-align: center;
  text-shadow: 0 1px 4px rgba(0,0,0,0.4);
  line-height: 1.2;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bm-card.wide .bm-card-content {
  flex-direction: row;
  justify-content: flex-start;
  padding: 0 var(--s4);
  gap: var(--s3);
}

.bm-card.wide .bm-card-title {
  font-size: 0.85rem;
  text-align: left;
  white-space: normal;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* Drag state */
.bm-card.dragging {
  opacity: 0.6;
  transform: scale(1.08) rotate(2deg);
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
  z-index: var(--z-modal);
}

.bm-card.drag-over {
  transform: scale(1.03);
  box-shadow: 0 0 0 2px var(--accent);
}

/* ============================================================
   11. CONTEXT MENU
   ============================================================ */

.context-menu {
  position: fixed;
  z-index: var(--z-modal);
  min-width: 200px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  padding: var(--s2);
  box-shadow: var(--glass-shadow-lg);
  backdrop-filter: blur(32px) saturate(200%);
  -webkit-backdrop-filter: blur(32px) saturate(200%);
  animation: contextMenuIn var(--t-fast) ease forwards;
}

@keyframes contextMenuIn {
  from { opacity: 0; transform: scale(0.92) translateY(-4px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.context-menu-item {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding: var(--s2) var(--s3);
  border-radius: var(--r-sm);
  font-size: 0.9rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
  white-space: nowrap;
}

.context-menu-item:hover {
  background: var(--glass-bg-hover);
}

.context-menu-item.danger {
  color: var(--danger);
}
.context-menu-item.danger:hover {
  background: var(--danger-light);
}

.context-menu-divider {
  height: 1px;
  background: var(--border);
  margin: var(--s1) 0;
}

.context-menu-icon {
  width: 18px;
  text-align: center;
  font-size: 0.9rem;
  opacity: 0.7;
  flex-shrink: 0;
}

/* ============================================================
   12. MODAL / POPUP
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s4);
  animation: fadeIn var(--t-fast) ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal {
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  box-shadow: var(--glass-shadow-lg);
  backdrop-filter: blur(32px) saturate(180%);
  -webkit-backdrop-filter: blur(32px) saturate(180%);
  animation: modalIn var(--t-spring) forwards;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.92) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s5) var(--s6);
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.modal-close {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}

.modal-close:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--s6);
  display: flex;
  flex-direction: column;
  gap: var(--s5);
}

.modal-footer {
  padding: var(--s4) var(--s6);
  border-top: 1px solid var(--border);
  display: flex;
  gap: var(--s3);
  justify-content: flex-end;
}

/* Sublinks section inside modal */
.sublinks-list {
  display: flex;
  flex-direction: column;
  gap: var(--s3);
}

.sublink-row {
  display: flex;
  gap: var(--s2);
  align-items: center;
}

.sublink-row .form-input { flex: 1; }

.sublink-remove {
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  background: var(--danger-light);
  color: var(--danger);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--t-fast);
}
.sublink-remove:hover { background: var(--danger); color: #fff; }

/* Gradient presets */
.gradient-presets {
  display: flex;
  gap: var(--s2);
  flex-wrap: wrap;
}

.gradient-preset {
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--t-fast), border-color var(--t-fast);
}
.gradient-preset:hover { transform: scale(1.1); }
.gradient-preset.active { border-color: var(--accent); }

/* ============================================================
   13. SUBLINKS POPUP (hold-click)
   ============================================================ */

.sublinks-popup {
  position: fixed;
  z-index: var(--z-modal);
  min-width: 180px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  padding: var(--s2);
  box-shadow: var(--glass-shadow-lg);
  backdrop-filter: blur(32px) saturate(200%);
  -webkit-backdrop-filter: blur(32px) saturate(200%);
  animation: contextMenuIn var(--t-fast) ease forwards;
}

.sublink-item {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding: var(--s2) var(--s3);
  border-radius: var(--r-sm);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-primary);
  transition: background var(--t-fast);
}

.sublink-item:hover {
  background: var(--glass-bg-hover);
}

.sublink-item-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  object-fit: cover;
}

/* ============================================================
   14. TOAST NOTIFICATIONS
   ============================================================ */

.toast-container {
  position: fixed;
  bottom: var(--s6);
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--s2);
  align-items: center;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding: var(--s3) var(--s5);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-full);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: var(--glass-shadow);
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  pointer-events: auto;
  animation: toastIn var(--t-spring) forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(16px) scale(0.9); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.toast.out {
  animation: toastOut var(--t-base) forwards;
}

@keyframes toastOut {
  to { opacity: 0; transform: translateY(8px) scale(0.95); }
}

.toast.success { border-color: var(--success); }
.toast.error   { border-color: var(--danger);  }
.toast.warning { border-color: var(--warning); }

.toast-icon { font-size: 1rem; }

/* ============================================================
   15. LANDING PAGE
   ============================================================ */

.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
}

.landing-hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--s16) var(--s6);
  position: relative;
  overflow: hidden;
}

/* Ambient blobs */
.landing-hero::before,
.landing-hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  pointer-events: none;
}

.landing-hero::before {
  width: 600px;
  height: 600px;
  background: var(--accent);
  top: -200px;
  right: -200px;
  animation: blobDrift 12s ease-in-out infinite alternate;
}

.landing-hero::after {
  width: 400px;
  height: 400px;
  background: var(--accent);
  bottom: -100px;
  left: -100px;
  animation: blobDrift 16s ease-in-out infinite alternate-reverse;
}

@keyframes blobDrift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(40px, 20px) scale(1.1); }
}

.landing-content {
  position: relative;
  z-index: 1;
  max-width: 480px;
  width: 100%;
}

.landing-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: var(--s3);
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.landing-tagline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: var(--s8);
  line-height: 1.6;
}

/* Auth card */
.auth-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  padding: var(--s8);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: var(--glass-shadow-lg);
}

.auth-tabs {
  display: flex;
  gap: var(--s1);
  background: var(--bg-tertiary);
  border-radius: var(--r-md);
  padding: var(--s1);
  margin-bottom: var(--s6);
}

.auth-tab {
  flex: 1;
  padding: var(--s2) var(--s3);
  border-radius: calc(var(--r-md) - 2px);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
  cursor: pointer;
  transition: all var(--t-fast);
}

.auth-tab.active {
  background: var(--glass-bg);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--s4);
}

/* ============================================================
   16. PAGE LAYOUTS (Profile, Settings, About, Help)
   ============================================================ */

.page-layout {
  padding-top: calc(56px + var(--s8));
  padding-bottom: var(--s16);
  min-height: 100vh;
}

.page-header {
  padding: 0 var(--s6) var(--s8);
  max-width: 800px;
  margin: 0 auto;
}

.page-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--s2);
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

.page-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--s6);
  display: flex;
  flex-direction: column;
  gap: var(--s5);
}

/* Settings section card */
.settings-section {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.settings-section-header {
  padding: var(--s4) var(--s6);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--s3);
}

.settings-section-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.settings-section-icon {
  font-size: 1rem;
  color: var(--accent);
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s4);
  padding: var(--s4) var(--s6);
  border-bottom: 1px solid var(--border);
  transition: background var(--t-fast);
}

.settings-row:last-child { border-bottom: none; }
.settings-row:hover { background: var(--glass-bg-hover); }

.settings-row-label { font-size: 0.95rem; }
.settings-row-desc  { font-size: 0.8rem; color: var(--text-secondary); margin-top: 2px; }

.settings-row-left { flex: 1; min-width: 0; }

/* Background picker */
.bg-picker {
  display: flex;
  gap: var(--s2);
  flex-wrap: wrap;
}

.bg-option {
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--t-fast), border-color var(--t-fast);
  position: relative;
  overflow: hidden;
}

.bg-option:hover { transform: scale(1.08); }
.bg-option.active { border-color: var(--accent); }

/* ============================================================
   17. ADMIN LAYOUT
   ============================================================ */

.admin-layout {
  display: flex;
  min-height: 100vh;
  padding-top: 56px;
}

.admin-sidebar {
  position: fixed;
  top: 56px;
  left: 0;
  bottom: 0;
  width: 260px;
  background: var(--glass-bg);
  border-right: 1px solid var(--glass-border);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  overflow-y: auto;
  z-index: var(--z-overlay);
  transition: transform var(--t-base);
}

.admin-sidebar-header {
  padding: var(--s5) var(--s5) var(--s3);
  border-bottom: 1px solid var(--border);
}

.admin-sidebar-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
}

.admin-nav-group {
  padding: var(--s3) var(--s3);
  border-bottom: 1px solid var(--border);
}

.admin-nav-group-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  padding: 0 var(--s3) var(--s2);
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding: var(--s3) var(--s3);
  border-radius: var(--r-md);
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}

.admin-nav-item:hover {
  background: var(--glass-bg-hover);
  color: var(--text-primary);
}

.admin-nav-item.active {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 500;
}

.admin-nav-icon {
  width: 20px;
  text-align: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.admin-content {
  margin-left: 260px;
  flex: 1;
  padding: var(--s8) var(--s8);
  max-width: 960px;
}

.admin-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  margin-bottom: var(--s5);
}

.admin-panel-header {
  padding: var(--s5) var(--s6);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-panel-title {
  font-size: 1rem;
  font-weight: 600;
}

.admin-panel-body {
  padding: var(--s6);
  display: flex;
  flex-direction: column;
  gap: var(--s5);
}

/* Users table */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.admin-table th {
  text-align: left;
  padding: var(--s3) var(--s4);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  border-bottom: 1px solid var(--border);
}

.admin-table td {
  padding: var(--s3) var(--s4);
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}

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

.admin-table tr:hover td {
  background: var(--glass-bg-hover);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--s2);
  border-radius: var(--r-full);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-admin {
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid var(--accent-medium);
}

.badge-user {
  background: var(--glass-bg);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* Burger menu for admin sidebar on mobile */
.admin-burger {
  display: none;
  position: fixed;
  bottom: var(--s6);
  right: var(--s6);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  z-index: var(--z-top);
  transition: transform var(--t-spring), box-shadow var(--t-fast);
}
.admin-burger:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 32px var(--accent-glow);
}

/* ============================================================
   18. LOADING STATES
   ============================================================ */

/* Full-page loading screen (admin gate) */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-top);
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s4);
  opacity: 1;
  transition: opacity var(--t-base);
}

.page-loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.loader-logo {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Skeleton loader */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--glass-bg) 25%,
    var(--glass-bg-hover) 50%,
    var(--glass-bg) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--r-sm);
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ============================================================
   19. FOOTER
   ============================================================ */

.site-footer {
  padding: var(--s5) var(--s6);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-tertiary);
  border-top: 1px solid var(--border);
}

/* ============================================================
   20. ABOUT & HELP PAGE
   ============================================================ */

.about-social-links {
  display: flex;
  gap: var(--s3);
  flex-wrap: wrap;
  margin-top: var(--s4);
}

.social-icon-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--t-fast);
  text-decoration: none;
}
.social-icon-btn:hover {
  background: var(--accent-light);
  border-color: var(--accent-medium);
  color: var(--accent);
  transform: translateY(-2px);
}

.help-section {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-xl);
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.help-section-header {
  padding: var(--s4) var(--s6);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  transition: background var(--t-fast);
}

.help-section-header:hover { background: var(--glass-bg-hover); }

.help-section-title {
  font-size: 1rem;
  font-weight: 600;
}

.help-section-body {
  padding: var(--s6);
  font-size: 0.925rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.keyboard-shortcuts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--s3);
}

.shortcut-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s3);
  padding: var(--s3) var(--s4);
  background: var(--bg-tertiary);
  border-radius: var(--r-md);
  font-size: 0.875rem;
}

kbd {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--s2);
  background: var(--glass-bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-primary);
  box-shadow: 0 2px 0 var(--border-strong);
  white-space: nowrap;
}

/* ============================================================
   21. RESPONSIVE
   ============================================================ */

@media (max-width: 768px) {
  /* Admin sidebar becomes off-canvas */
  .admin-sidebar {
    transform: translateX(-100%);
    box-shadow: var(--glass-shadow-lg);
  }
  .admin-sidebar.open {
    transform: translateX(0);
  }
  .admin-content {
    margin-left: 0;
    padding: var(--s5) var(--s4);
  }
  .admin-burger { display: flex; }

  /* Bookmark grid tighter on mobile */
  .bookmark-grid {
    gap: var(--s3);
    padding: calc(56px + var(--s4)) var(--s3) var(--s4);
  }
  .bookmark-grid.has-clock {
    padding-top: calc(56px + 140px + var(--s4));
  }

  .bm-clock {
    top: calc(56px + var(--s4));
    left: var(--s4);
  }

  .bm-clock-time {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  /* Modal full width on mobile */
  .modal {
    max-width: 100%;
    border-radius: var(--r-xl) var(--r-xl) 0 0;
  }

  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }

  /* Page content */
  .page-content, .page-header {
    padding: 0 var(--s4);
  }

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

@media (max-width: 480px) {
  .auth-card {
    padding: var(--s5);
  }

  .navbar {
    padding: 0 var(--s4);
  }

  .container {
    padding: 0 var(--s4);
  }

  .modal-body {
    padding: var(--s4);
  }

  .admin-table {
    font-size: 0.8rem;
  }
}

/* ============================================================
   22. UTILITY CLASSES
   ============================================================ */

.hidden   { display: none !important; }
.visible  { display: block !important; }
.sr-only  {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mt-2 { margin-top: var(--s2); }
.mt-4 { margin-top: var(--s4); }
.mt-6 { margin-top: var(--s6); }
.mb-4 { margin-bottom: var(--s4); }
.mb-6 { margin-bottom: var(--s6); }
.w-full { width: 100%; }

/* Accent color application via data attribute */
[data-accent] {
  /* JS will inject: style="--accent: #xxx; --accent-rgb: r, g, b;" */
}