/* ===========================
   CSS RESET & TOKENS
   =========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0a0b0f;
  --bg2:         #111218;
  --bg3:         #17191f;
  --border:      rgba(255,255,255,0.07);
  --border-hover:rgba(255,255,255,0.15);
  --accent:      #f5c518;
  --accent-dim:  rgba(245,197,24,0.12);
  --accent-glow: rgba(245,197,24,0.3);
  --text-primary:#e8eaf0;
  --text-muted:  #7a7f94;
  --text-faint:  #454858;
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   16px;
  --font-mono:   'JetBrains Mono', monospace;
  --font-sans:   'Inter', sans-serif;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --transition:  150ms cubic-bezier(0.4,0,0.2,1);
}

html { font-size: 15px; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ===========================
   HEADER
   =========================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,11,15,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { font-size: 1.8rem; filter: drop-shadow(0 0 8px var(--accent-glow)); }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.logo-sub { font-size: 0.72rem; color: var(--text-muted); font-weight: 400; }

.header-stats { display: flex; gap: 8px; align-items: center; }
.stat-badge {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}
.stat-badge span { color: var(--accent); font-weight: 700; }

/* ===========================
   TOOLBAR
   =========================== */
.toolbar {
  max-width: 1600px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.search-icon {
  position: absolute;
  left: 14px;
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  pointer-events: none;
}
.search-input {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 11px 42px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-input::placeholder { color: var(--text-faint); }
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.search-clear {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.75rem;
  padding: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), color var(--transition);
}
.search-clear.visible { opacity: 1; pointer-events: auto; }
.search-clear:hover { color: var(--text-primary); }

.filter-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.filter-select {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%237a7f94' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}
.filter-select:focus { border-color: var(--accent); }

.toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.82rem;
  user-select: none;
  white-space: nowrap;
}
.toggle-label input { display: none; }
.toggle-track {
  width: 34px;
  height: 18px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 999px;
  position: relative;
  transition: background var(--transition), border-color var(--transition);
}
.toggle-thumb {
  position: absolute;
  top: 2px; left: 2px;
  width: 12px; height: 12px;
  background: var(--text-faint);
  border-radius: 50%;
  transition: transform var(--transition), background var(--transition);
}
.toggle-label input:checked ~ .toggle-track { background: var(--accent-dim); border-color: var(--accent); }
.toggle-label input:checked ~ .toggle-track .toggle-thumb { transform: translateX(16px); background: var(--accent); }

/* ===========================
   LAYOUT
   =========================== */
.layout {
  flex: 1;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
  padding: 0 24px 32px;
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 20px;
  min-height: 0;
}

/* ===========================
   SIDEBAR / PROMPT LIST
   =========================== */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
}
.sidebar-inner {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  padding-right: 4px;
  max-height: calc(100vh - 230px);
  scrollbar-width: thin;
  scrollbar-color: var(--bg3) transparent;
}
.sidebar-inner::-webkit-scrollbar { width: 4px; }
.sidebar-inner::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 2px; }

/* Loader */
.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 60px 20px;
  color: var(--text-muted);
}
.loader-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); } }

/* File picker state */
.file-picker-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 36px 20px;
  text-align: center;
  color: var(--text-muted);
}
.file-picker-state .fp-icon { font-size: 2.4rem; margin-bottom: 4px; }
.file-picker-state h3 { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); }
.file-picker-state p  { font-size: 0.78rem; line-height: 1.5; }
.file-picker-state code {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--accent);
}
.fp-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 8px;
  background: var(--accent);
  color: #000;
  border-radius: var(--radius-sm);
  padding: 9px 18px;
  font-size: 0.83rem;
  font-weight: 700;
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  transition: background var(--transition), transform var(--transition);
  user-select: none;
}
.fp-btn:hover { background: #ffd63a; transform: translateY(-1px); }


/* ─────────────────────────────────────────────────────────
   PROMPT CARD — compact row, image right, virtual-scroll friendly
   CARD_H in app.js MUST stay in sync with height here (120px)
──────────────────────────────────────────────────────── */
.prompt-card {
  height: 120px;         /* SYNCED with CARD_H in app.js */
  display: flex;
  align-items: stretch;
  overflow: hidden;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  position: relative;
  transition: background var(--transition);
  flex-shrink: 0;        /* prevent flex-children from collapsing */
}
.prompt-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}
.prompt-card:hover                { background: var(--bg3); }
.prompt-card:hover::before        { opacity: 0.6; }
.prompt-card.active               { background: var(--bg3); }
.prompt-card.active::before       { opacity: 1; }

/* Left text column */
.card-left {
  flex: 1;
  min-width: 0;
  padding: 8px 10px 6px 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}
.card-top-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 3px;
}
.card-date {
  font-size: 0.65rem;
  color: var(--text-faint);
  white-space: nowrap;
  margin-left: auto;
}
.card-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 4px;
}
.card-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
}
.card-author {
  font-size: 0.65rem;
  color: var(--text-faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 130px;
}
.cbadge {
  font-size: 0.6rem;
  color: var(--text-muted);
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0px 4px;
  white-space: nowrap;
}

/* Right image panel */
.card-img {
  width: 120px;
  flex-shrink: 0;
  background-size: cover;
  background-position: center;
  background-color: var(--bg3);
  background-image: linear-gradient(135deg, var(--bg3), rgba(255,255,255,0.03));
}



/* ===========================
   DETAIL PANEL
   =========================== */
.detail-panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow-y: auto;
  max-height: calc(100vh - 210px);
  scrollbar-width: thin;
  scrollbar-color: var(--bg3) transparent;
}
.detail-panel::-webkit-scrollbar { width: 6px; }
.detail-panel::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 3px; }

.detail-empty {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 60px 40px;
  text-align: center;
  color: var(--text-muted);
}
.empty-icon {
  font-size: 2.5rem;
  color: var(--text-faint);
  animation: pulse 3s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:0.4;transform:scale(1)} 50%{opacity:1;transform:scale(1.05)} }
.detail-empty h2 { font-size: 1.2rem; color: var(--text-primary); }
.detail-empty p { font-size: 0.85rem; max-width: 380px; line-height: 1.6; }

.detail-content {
  padding: 28px 32px;
}

/* Detail header */
.detail-header {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.detail-id-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

/* ← → Navigation controls */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-right: 4px;
}
.nav-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  padding: 0;
  flex-shrink: 0;
}
.nav-btn:hover:not(:disabled) { background: var(--accent-dim); border-color: var(--accent); color: var(--accent); }
.nav-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.nav-counter {
  font-size: 0.72rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  white-space: nowrap;
  min-width: 70px;
  text-align: center;
}
.kbd-hint {
  font-size: 0.66rem;
  color: var(--text-faint);
  margin-left: auto;
  display: flex;
  gap: 4px;
  align-items: center;
}
.kbd {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
}

.detail-id {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-faint);
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 4px;
}
.detail-source-link {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition);
}
.detail-source-link:hover { color: var(--accent); }

.detail-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
.detail-description {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}
.detail-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.meta-tag {
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 3px 8px;
}
.author-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  background: var(--accent-dim);
  border: 1px solid rgba(245,197,24,0.2);
  border-radius: 999px;
  padding: 3px 10px;
  transition: background var(--transition);
}
.author-chip:hover { background: rgba(245,197,24,0.2); }

/* Images gallery */
.section-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 12px;
}
.hero-images {
  display: flex;
  flex-direction: row;
  gap: 16px;
  margin-bottom: 32px;
  width: 100%;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding-bottom: 12px;
}
.hero-images::-webkit-scrollbar {
  height: 6px;
}
.hero-images::-webkit-scrollbar-track {
  background: var(--bg-dark);
  border-radius: 10px;
}
.hero-images::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 10px;
}
.hero-images::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}
.img-hero {
  flex: 0 0 100%;
  scroll-snap-align: start;
  max-height: 500px;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-dark);
  cursor: zoom-in;
  transition: opacity 0.2s;
}
.img-hero:hover { opacity: 0.9; }

/* Arguments section */
.args-section { margin-bottom: 28px; }
.args-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.arg-item { display: flex; flex-direction: column; gap: 6px; }
.arg-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.arg-name-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 4px;
  padding: 1px 6px;
}
.arg-input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.83rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  resize: vertical;
  min-height: 36px;
}
.arg-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }

/* Prompt output */
.prompt-section { margin-bottom: 28px; }
.prompt-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  font-family: var(--font-sans);
}
.copy-btn:hover { background: #ffd63a; transform: translateY(-1px); }
.copy-btn:active { transform: translateY(0); }
.copy-btn.copied { background: #22c55e; color: #fff; }

.reset-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 14px;
  color: var(--text-muted);
  font-size: 0.78rem;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
  font-family: var(--font-sans);
}
.reset-btn:hover { border-color: var(--border-hover); color: var(--text-primary); }

.prompt-output {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 500px;
  overflow-y: auto;
  position: relative;
}
.prompt-output mark {
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 2px;
  padding: 0 2px;
}

/* Raw content toggle */
.raw-toggle {
  font-size: 0.76rem;
  color: var(--text-muted);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-style: dotted;
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-sans);
  transition: color var(--transition);
}
.raw-toggle:hover { color: var(--text-primary); }

/* Image lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: 999;
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}
.lightbox-close {
  position: absolute;
  top: 20px; right: 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 1;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 20px;
  font-size: 0.84rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
  z-index: 9999;
  pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* Highlight matching text */
.highlight { background: rgba(245,197,24,0.2); border-radius: 2px; }

/* ===========================
   MODAL / FORM
   =========================== */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-content {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
}
.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg1);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
}
.modal-close:hover { color: var(--text-primary); }
.modal-form {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}
.form-group .required { color: var(--accent); }
.form-group input, .form-group textarea {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 0.9rem;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.form-row {
  display: flex;
  gap: 16px;
}
.form-row .form-group {
  flex: 1;
}
.modal-footer {
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; padding-bottom: 20px; }
  .sidebar-inner { max-height: 50vh; }
  .detail-panel { max-height: none; }
}
@media (max-width: 600px) {
  .header-inner, .toolbar, .layout { padding-left: 16px; padding-right: 16px; }
  .detail-content { padding: 20px 18px; }
  .detail-title { font-size: 1.2rem; }
}