/* ===== CSS Variables for Theming ===== */
:root {
  --bg-primary: #020617;
  --bg-secondary: #0f172a;
  --bg-card: #1e293b;
  --bg-hover: #334155;
  --bg-input: #0f172a;
  --border: #334155;
  --border-hover: #3b82f6;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-faint: #64748b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --shadow: rgba(0, 0, 0, 0.3);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;
  --bg-input: #f1f5f9;
  --border: #e2e8f0;
  --border-hover: #3b82f6;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-faint: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-glow: rgba(59, 130, 246, 0.1);
  --shadow: rgba(0, 0, 0, 0.08);
}

/* ===== Apply theme variables ===== */
body {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro', 'Inter', 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
}

header {
  background: var(--bg-secondary) !important;
  border-color: var(--border) !important;
}

#usageBar {
  background: var(--bg-secondary) !important;
  border-color: var(--border) !important;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

/* Hide scrollbar for category tabs */
.scrollbar-hide::-webkit-scrollbar { display: none; }
.scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }

/* ===== Category tabs ===== */
.category-tab {
  white-space: nowrap;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 9999px;
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}
.category-tab:hover { background: var(--bg-hover); color: var(--text-primary); }
.category-tab.active {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 10px rgba(59, 130, 246, 0.3);
}

/* ===== Tool cards ===== */
.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 12px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.tool-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--accent-glow);
}
.tool-card:active {
  transform: translateY(-1px);
}
.tool-card .tool-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: transform 0.2s;
}
.tool-card:hover .tool-icon {
  transform: scale(1.1);
}
.tool-icon svg {
  width: 24px;
  height: 24px;
}
.tool-icon {
  color: var(--text-primary);
}
.tool-card .tool-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}
.tool-card .tool-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 8px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.tool-card .tool-badge.free {
  background: #065f4620;
  color: #34d399;
}
.tool-card .tool-badge.pro {
  background: #3b82f615;
  color: #60a5fa;
}
.tool-card .tool-fav-star {
  position: absolute;
  top: 6px;
  left: 6px;
  font-size: 12px;
  line-height: 1;
  opacity: 0.4;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 2;
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px;
}
.tool-card:hover .tool-fav-star,
.tool-card .tool-fav-star:hover {
  opacity: 1;
  transform: scale(1.2);
}

/* ===== Themed modal ===== */
.themed-modal {
  background: var(--bg-secondary) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
}
.themed-modal-section {
  background: var(--bg-card) !important;
}
.themed-modal-divider {
  border-color: var(--border) !important;
}
.themed-toast {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
}
.themed-hover:hover {
  background: var(--bg-hover) !important;
}

/* ===== Themed action buttons (copy, fav, retry) ===== */
.themed-action-btn {
  background: var(--bg-card) !important;
  color: var(--text-primary) !important;
}
.themed-action-btn:hover {
  background: var(--bg-hover) !important;
}

/* ===== Themed header buttons ===== */
header button:hover,
.themed-icon-btn:hover {
  background: var(--bg-hover) !important;
}

/* ===== Themed input (search bar) ===== */
.themed-input {
  background: var(--bg-input) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
}
.themed-input::placeholder {
  color: var(--text-faint) !important;
}
.themed-input:focus {
  border-color: var(--border-hover) !important;
}

/* ===== Workspace inputs ===== */
#inputText, #secondaryInput {
  background: var(--bg-input) !important;
  border-color: var(--border) !important;
  color: var(--text-primary) !important;
}
#inputText::placeholder, #secondaryInput::placeholder {
  color: var(--text-faint) !important;
}
#inputText:focus, #secondaryInput:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px var(--accent-glow) !important;
}

/* ===== Output area ===== */
#outputWrap > div:first-child {
  background: var(--bg-card) !important;
  border-color: var(--border) !important;
}
#outputText {
  color: var(--text-secondary) !important;
  line-height: 1.7;
}

/* ===== Buttons ===== */
#copyBtn, #favBtn, #retryBtn {
  background: var(--bg-card) !important;
  border: 1px solid var(--border);
  color: var(--text-primary) !important;
}
#copyBtn:hover, #favBtn:hover, #retryBtn:hover {
  background: var(--bg-hover) !important;
}

/* ===== Loading spinner ===== */
.loading-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); } }

/* Loading container */
#loadingState > div {
  background: var(--bg-card) !important;
  border-color: var(--border) !important;
}

/* ===== Premium modal ===== */
#premiumModal > div:last-child {
  background: var(--bg-secondary) !important;
  border-color: var(--border) !important;
}
.premium-plan-option {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
}
.premium-plan-option:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

/* ===== Option pills ===== */
.option-pill {
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 9999px;
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s;
}
.option-pill:hover { background: var(--bg-hover); color: var(--text-primary); }
.option-pill.active {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

/* ===== History items ===== */
.history-item {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  cursor: pointer;
  transition: all 0.2s;
}
.history-item:hover {
  border-color: var(--border-hover);
  background: var(--bg-card);
}

/* History sidebar */
#historySidebar > div:last-child {
  background: var(--bg-secondary) !important;
  border-color: var(--border) !important;
}

/* ===== Account & TOS modals ===== */
#accountModal > div:last-child,
#tosModal > div:last-child {
  background: var(--bg-secondary) !important;
  border-color: var(--border) !important;
}
#accountModal .bg-dark-800,
#tosModal .bg-dark-800 {
  background: var(--bg-card) !important;
}
#accountModal .divide-dark-700 > :not(:last-child) {
  border-color: var(--border) !important;
}
#accountModal h4 {
  color: var(--text-faint) !important;
}

/* ===== Toast ===== */
#toast {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
  backdrop-filter: blur(12px);
}
#toast.show {
  transform: translate(-50%, 0);
  opacity: 1;
}

/* ===== Textarea focus glow ===== */
textarea:focus {
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ===== Smooth page transitions ===== */
#toolGrid, #workspace {
  animation: fadeIn 0.25s ease-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Run button ===== */
#runBtn:not(:disabled):hover {
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
  transform: translateY(-1px);
}
#runBtn {
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}
#runBtn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== Back button ===== */
#backBtn {
  color: var(--text-muted) !important;
}
#backBtn:hover {
  background: var(--bg-hover) !important;
}

/* ===== Tool header text ===== */
#toolTitle {
  color: var(--text-primary) !important;
}
#toolDescription {
  color: var(--text-muted) !important;
}

/* ===== Header buttons themed ===== */
#historyBtn, #themeBtn {
  color: var(--text-muted);
}
#historyBtn:hover, #themeBtn:hover {
  background: var(--bg-hover);
}
#userBtn {
  background: var(--bg-card) !important;
}
#userBtn:hover {
  background: var(--bg-hover) !important;
}

/* ===== Usage bar themed ===== */
#usageBar span {
  color: var(--text-muted);
}
#usageProgress {
  transition: width 0.3s ease;
}

/* ===== Mobile adjustments ===== */
@media (max-width: 640px) {
  .tool-card { padding: 14px 8px; border-radius: 14px; }
  .tool-card .tool-icon { width: 36px; height: 36px; font-size: 17px; }
  .tool-card .tool-name { font-size: 10px; }
  #inputText { font-size: 16px !important; } /* prevents iOS zoom */
}

/* ===== Line clamp utility ===== */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}