/* ============================================================
   Affan's Bookmark Vault — styles
   ============================================================ */

/* --- Theme tokens --- */
:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #f0f3f9;
  --text: #1a1f2e;
  --text-muted: #5b6477;
  --border: #e2e6ef;
  --primary: #3b6cff;
  --primary-hover: #2a55d6;
  --danger: #e2445c;
  --danger-hover: #c2364c;
  --accent: #78aaff;
  --shadow-sm: 0 1px 3px rgba(20, 30, 60, 0.06);
  --shadow-md: 0 6px 20px rgba(20, 30, 60, 0.08);
  --shadow-lg: 0 20px 50px rgba(20, 30, 60, 0.18);
  --radius: 10px;
  --radius-lg: 16px;
  --transition: 180ms ease;
}

[data-theme="dark"] {
  --bg: #0f1320;
  --surface: #181d2c;
  --surface-2: #222840;
  --text: #e8ebf3;
  --text-muted: #98a0b3;
  --border: #2a3148;
  --primary: #6e8cff;
  --primary-hover: #8aa2ff;
  --danger: #ff6b80;
  --danger-hover: #ff8597;
  --accent: #8ab4ff;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.6);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3 { margin: 0; font-weight: 600; }
button { font-family: inherit; cursor: pointer; }

/* --- Custom cursor --- */
#cursor-dot {
  position: fixed;
  top: 0; left: 0;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid #1a1f2e;
  pointer-events: none;
  z-index: 9999;
  transition: transform 60ms linear, width 150ms ease, height 150ms ease, background 150ms ease;
  display: none;
  mix-blend-mode: difference;
}
#cursor-trail {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  display: none;
}
.has-custom-cursor #cursor-dot,
.has-custom-cursor #cursor-trail { display: block; }
.has-custom-cursor,
.has-custom-cursor * { cursor: none !important; }
#cursor-dot.cursor-hover {
  width: 22px; height: 22px;
  margin: -5px 0 0 -5px;
  background: var(--accent);
}

/* --- Topbar --- */
.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.brand h1 {
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}
.tagline {
  margin: 2px 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.topbar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* --- Layout --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 80px;
  display: grid;
  gap: 24px;
}

/* --- Panels --- */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.panel h2 {
  font-size: 1.1rem;
  margin-bottom: 16px;
}

/* --- Form --- */
.form-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.form-row label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.form-row .hint {
  color: var(--text-muted);
  font-size: 0.78rem;
}
.form-row.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
input[type="text"],
input[type="url"],
input[type="search"],
input[type="file"] {
  width: 100%;
  padding: 10px 12px;
  font-size: 0.95rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 108, 255, 0.15);
}
.form-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: var(--surface-2);
  color: var(--text);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: var(--danger-hover); }
.btn-ghost { background: transparent; border-color: var(--border); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-sm { padding: 6px 10px; font-size: 0.8rem; }

/* --- Toolbar --- */
.toolbar {
  display: grid;
  gap: 12px;
}
#search-input {
  font-size: 1rem;
  padding: 12px 16px;
}
.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.chip:hover { border-color: var(--primary); }
.chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* --- Bookmarks grid --- */
.bookmarks-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 640px)  { .bookmarks-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px)  { .bookmarks-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1280px) { .bookmarks-grid { grid-template-columns: repeat(4, 1fr); } }

/* --- Card --- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.card-type {
  position: absolute;
  top: 12px; right: 12px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-muted);
  text-transform: uppercase;
}
.card-type.html { background: var(--accent); color: #fff; }
.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  padding-right: 60px;
  word-break: break-word;
}
.card-url {
  font-size: 0.8rem;
  color: var(--text-muted);
  word-break: break-all;
  text-decoration: none;
}
.card-url:hover { color: var(--primary); }
.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.tag {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-muted);
}
.card-category {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.card-actions {
  display: flex;
  gap: 6px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
  flex-wrap: wrap;
}

/* --- Empty state --- */
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* --- Modal --- */
.modal {
  position: fixed; inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  animation: fadeIn 180ms ease;
}
.modal.hidden { display: none; }
.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(10, 15, 30, 0.55);
  backdrop-filter: blur(3px);
}
.modal-content {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 440px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp 220ms ease;
}
.modal-content-large { max-width: 1000px; height: 80vh; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-close {
  background: transparent;
  border: none;
  font-size: 1.6rem;
  color: var(--text-muted);
  line-height: 1;
  padding: 0 6px;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px; }
.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
#preview-iframe {
  flex: 1;
  width: 100%;
  border: none;
  background: #fff;
}

/* --- Notifications --- */
.notifications {
  position: fixed;
  bottom: 20px; right: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 1100;
  pointer-events: none;
}
.notification {
  background: var(--surface);
  color: var(--text);
  padding: 12px 18px;
  border-radius: var(--radius);
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-md);
  font-size: 0.9rem;
  pointer-events: auto;
  animation: slideIn 220ms ease;
  max-width: 320px;
}
.notification.success { border-left-color: #2ecc71; }
.notification.error   { border-left-color: var(--danger); }
.notification.fade-out { animation: fadeOut 220ms ease forwards; }

/* --- Helpers --- */
.hidden { display: none !important; }

/* --- Animations --- */
@keyframes fadeIn  { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; transform: translateX(20px); } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* --- Responsive tweaks --- */
@media (max-width: 600px) {
  .topbar { padding: 16px; }
  .container { padding: 16px 14px 60px; }
  .panel { padding: 18px; }
  .form-row.two-col { grid-template-columns: 1fr; }
  .modal-content-large { height: 90vh; }
}