/* PromptLib hand-written CSS — no Tailwind, no CDN */

/* Sora font, fully local under /fonts */
@font-face {
  font-family: 'Sora';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/sora-400.ttf') format('truetype');
}
@font-face {
  font-family: 'Sora';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/sora-500.ttf') format('truetype');
}
@font-face {
  font-family: 'Sora';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/sora-600.ttf') format('truetype');
}
@font-face {
  font-family: 'Sora';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/sora-700.ttf') format('truetype');
}

:root {
  --background: #f5f5f5;
  --foreground: #111827;
  --card: #ffffff;
  --border: rgba(0, 0, 0, 0.08);
  --secondary: #f3f4f6;
  --secondary-foreground: #374151;
  --text-secondary: #4b5563;
  --text-tertiary: #6b7280;
  --primary: #111827;
  --primary-foreground: #ffffff;
  --muted: #f3f4f6;
  --destructive: #dc2626;
  --search-input: rgba(0, 0, 0, 0.03);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0b0d10;
    --foreground: #e5e7eb;
    --card: #14171c;
    --border: rgba(255, 255, 255, 0.08);
    --secondary: #1f242b;
    --secondary-foreground: #d1d5db;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;
    --primary: #e5e7eb;
    --primary-foreground: #0b0d10;
    --muted: #1f242b;
    --destructive: #f87171;
    --search-input: rgba(255, 255, 255, 0.04);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Sora', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--background);
  color: var(--foreground);
  min-height: 100vh;
  overflow-x: hidden;
}

.hidden { display: none !important; }

.mobile-menu-btn,
.sidebar-backdrop {
  display: none;
}

/* Sidebar */
.sidebar {
  background: var(--card);
  border-right: 1px solid var(--border);
  width: 220px;
  min-height: 100vh;
  padding: 20px 16px;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  overflow-y: auto;
  z-index: 50;
  -webkit-overflow-scrolling: touch;
}
.sidebar-brand {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 24px; padding-left: 12px;
}
.sidebar-divider {
  border-top: 1px solid var(--border);
  margin: 20px 12px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px;
  font-size: 14px; font-weight: 500; cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s;
  margin-bottom: 4px;
  user-select: none;
}
.nav-item:hover { background: var(--secondary); color: var(--foreground); }
.nav-item.active { background: var(--foreground); color: var(--background); }

.filter-group { margin-bottom: 20px; }
.filter-title {
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--text-tertiary);
  margin-bottom: 8px; padding-left: 12px;
}
.filter-chips { padding-left: 8px; }
.filter-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 8px;
  font-size: 13px; cursor: pointer;
  transition: all 0.15s;
  margin: 0 4px 6px 0;
  border: 1px solid transparent;
  user-select: none;
}
.filter-chip:hover { background: var(--secondary); }
.filter-chip.active {
  background: var(--foreground);
  color: var(--background);
  border-color: var(--foreground);
}

/* Main */
.main {
  margin-left: 220px;
  padding: 24px 32px;
  min-height: 100vh;
}
.security-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  margin-bottom: 18px;
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 8px;
  background: #fffbeb;
  color: #78350f;
}
.security-banner > div {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.security-banner strong {
  font-size: 14px;
  font-weight: 700;
}
.security-banner span {
  font-size: 12px;
  line-height: 1.45;
}
@media (prefers-color-scheme: dark) {
  .security-banner {
    background: rgba(245, 158, 11, 0.12);
    border-color: rgba(245, 158, 11, 0.32);
    color: #fcd34d;
  }
}
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; flex-wrap: wrap; gap: 12px;
}
.page-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.page-header h1 {
  font-size: 22px; font-weight: 700; margin: 0; letter-spacing: -0.3px;
}
.page-header p {
  font-size: 13px; color: var(--text-secondary);
  margin: 4px 0 0;
}
.toolbar {
  display: flex; gap: 10px; margin-bottom: 16px;
}
.stats {
  display: flex; gap: 16px; margin-bottom: 20px;
  font-size: 13px; color: var(--text-secondary);
  flex-wrap: wrap;
}
.stats .sep { color: var(--border); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

@media (max-width: 720px) {
  .mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 38px;
    width: 42px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--foreground);
    font: inherit;
    font-size: 18px;
  }
  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 45;
    display: block;
    background: rgba(0, 0, 0, 0.38);
  }
  .sidebar {
    width: min(82vw, 300px);
    padding: calc(68px + env(safe-area-inset-top)) 16px 20px;
    transform: translateX(-100%);
    transition: transform .2s ease;
    box-shadow: 16px 0 36px rgba(0, 0, 0, 0.18);
  }
  .sidebar.open { transform: translateX(0); }
  .main {
    margin-left: 0;
    padding: calc(18px + env(safe-area-inset-top)) 14px calc(22px + env(safe-area-inset-bottom));
  }
  .security-banner { align-items: stretch; flex-direction: column; }
  .security-banner .btn { justify-content: center; }
  .page-header {
    align-items: stretch;
    gap: 14px;
  }
  .page-title-row > div {
    min-width: 0;
  }
  .page-header h1 {
    font-size: 20px;
    line-height: 1.25;
  }
  .page-header p {
    line-height: 1.4;
  }
  .page-header .btn {
    width: 100%;
    justify-content: center;
    min-height: 42px;
  }
  .toolbar {
    margin-bottom: 14px;
  }
  .stats {
    gap: 8px 10px;
    margin-bottom: 14px;
    line-height: 1.5;
  }
  .stats .sep {
    display: none;
  }
  .card-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }
}

/* Card */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow 0.15s, transform 0.15s;
}
.card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}
.card-body { padding: 14px 16px; }
.card-title-row {
  display: flex; align-items: flex-start; gap: 8px; margin-bottom: 8px;
}
.card-title-row h3 {
  font-size: 15px; font-weight: 600; margin: 0; flex: 1;
  word-break: break-word;
}
.card-tags {
  display: flex; gap: 6px; margin-bottom: 10px; flex-wrap: wrap;
}
.card-prompt-block { margin-bottom: 8px; }
.card-prompt-head {
  display: flex; align-items: center; gap: 6px; margin-bottom: 4px;
}
.card-actions {
  display: flex; gap: 6px; margin-top: 12px; flex-wrap: wrap;
}
.spacer { margin-left: auto; }

.elapsed {
  font-size: 12px;
  color: var(--text-tertiary);
  font-variant-numeric: tabular-nums;
}

.gen-error {
  display: flex; align-items: center; gap: 8px;
  background: rgba(220, 38, 38, 0.08);
  border: 1px solid rgba(220, 38, 38, 0.3);
  color: var(--destructive);
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 12px;
  margin-bottom: 10px;
  cursor: pointer;
}
.gen-error > span {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (prefers-color-scheme: dark) {
  .gen-error {
    background: rgba(248, 113, 113, 0.1);
    border-color: rgba(248, 113, 113, 0.3);
    color: #fca5a5;
  }
}

.tag {
  background: var(--secondary);
  color: var(--secondary-foreground);
  border-radius: 6px;
  font-size: 11px;
  padding: 3px 8px;
  font-weight: 500;
  display: inline-block;
  white-space: nowrap;
}
.model-badge-gpt {
  background: #eef2ff; color: #4338ca; border: 1px solid #c7d2fe;
}
.model-badge-seedance {
  background: #fef3c7; color: #92400e; border: 1px solid #fde68a;
}
@media (prefers-color-scheme: dark) {
  .model-badge-gpt {
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
    border-color: rgba(99, 102, 241, 0.35);
  }
  .model-badge-seedance {
    background: rgba(251, 191, 36, 0.12);
    color: #fcd34d;
    border-color: rgba(251, 191, 36, 0.3);
  }
}

.btn {
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  padding: 7px 14px;
  cursor: pointer;
  transition: all 0.15s ease-out;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--foreground);
  font-family: inherit;
}
.btn:hover { background: var(--secondary); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
}
.btn-primary:hover { opacity: 0.9; background: var(--primary); }
.btn-ghost { background: transparent; border: none; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.icon-btn { font-size: 18px; padding: 4px 8px; }

.search-box {
  background: var(--search-input);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  width: 100%;
  outline: none;
  font-family: inherit;
  color: inherit;
}
.search-box:focus { border-color: var(--primary); }
textarea.search-box { resize: vertical; }

.img-preview {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--muted);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: var(--text-tertiary);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.img-preview img {
  width: 100%; height: 100%; object-fit: cover;
}
.img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.2s;
  display: flex; align-items: flex-end; justify-content: flex-end;
  padding: 12px; gap: 6px;
}
.card:hover .img-overlay { opacity: 1; }
.img-preview:focus-within .img-overlay { opacity: 1; }
.img-overlay .btn {
  background: rgba(255, 255, 255, 0.95);
  border: none;
  color: #111;
}
.img-empty {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}

.prompt-text {
  line-height: 1.5; font-size: 13px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
  overflow: hidden;
  white-space: pre-wrap;
  word-break: break-word;
}
.translation {
  color: var(--text-secondary);
  font-size: 12px; line-height: 1.4; margin-top: 6px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Modal */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; padding: 16px;
}
.modal-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 100%; max-width: 560px;
  max-height: min(90vh, 900px); overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.modal-card-large {
  max-width: min(960px, 90vw);
}
.info-img-wrap.large {
  max-height: 65vh;
  display: flex; align-items: center; justify-content: center;
}
.info-img-wrap.large img {
  max-height: 65vh;
  width: auto;
  max-width: 100%;
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px 0;
}
.modal-head h3 {
  margin: 0; font-size: 16px; font-weight: 600;
}
.modal-body {
  padding: 16px 24px 24px;
  display: flex; flex-direction: column; gap: 16px;
}
.modal-actions {
  display: flex; gap: 10px; margin-top: 4px;
}
.modal-actions .btn { flex: 1; }
.form-label {
  font-size: 13px; font-weight: 500; margin-bottom: 6px; display: block;
}
.form-hint {
  font-size: 12px; color: var(--text-tertiary); margin-top: 4px;
}
.required { color: var(--destructive); }
.hint-inline {
  font-weight: 400; color: var(--text-tertiary); font-size: 12px;
}
.setting-group {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}
.setting-group-title {
  font-size: 14px; font-weight: 600; margin-bottom: 12px;
  display: flex; align-items: center; gap: 8px;
}

.size-select { display: flex; gap: 8px; flex-wrap: wrap; }
.size-option {
  padding: 8px 14px; border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 13px; cursor: pointer;
  background: var(--card);
  transition: all 0.15s;
  user-select: none;
}
.size-option:hover { background: var(--secondary); }
.size-option.active {
  background: var(--foreground);
  color: var(--background);
  border-color: var(--foreground);
}

.info-img-wrap {
  border-radius: 10px; overflow: hidden;
  background: var(--muted);
}
.info-img-wrap img {
  width: 100%; height: auto; display: block;
}
.meta-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
  font-size: 13px;
}
.meta-item {
  display: flex; flex-direction: column; gap: 4px;
}
.meta-label {
  color: var(--text-tertiary); font-size: 12px;
}
.meta-value {
  font-weight: 500; word-break: break-word;
}
.meta-item.span2 { grid-column: span 2; }

.toast {
  position: fixed; top: 20px; left: 50%;
  transform: translateX(-50%);
  background: var(--foreground);
  color: var(--background);
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 13px;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  animation: slideDown 0.2s;
}
.toast.error { background: #dc2626; color: #fff; }
@keyframes slideDown {
  from { transform: translate(-50%, -20px); opacity: 0; }
}

.empty-state {
  text-align: center; padding: 60px 20px;
  color: var(--text-tertiary);
}
.spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (hover: none), (pointer: coarse) {
  .btn,
  .nav-item,
  .filter-chip,
  .size-option {
    min-height: 40px;
  }
  .img-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.48) 0%, transparent 58%);
  }
}

@media (max-width: 520px) {
  .card {
    border-radius: 10px;
  }
  .card-body {
    padding: 13px 14px;
  }
  .card-title-row {
    align-items: center;
  }
  .card-prompt-head {
    flex-wrap: wrap;
  }
  .card-prompt-head .spacer {
    margin-left: auto;
  }
  .card-actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
  .card-actions .spacer {
    margin-left: 0;
    flex: 0 0 44px;
  }
  .prompt-text {
    -webkit-line-clamp: 4;
  }
  .search-box {
    font-size: 16px;
    padding: 11px 12px;
  }
  .modal-overlay {
    align-items: flex-end;
    padding: 10px;
    padding-bottom: max(10px, env(safe-area-inset-bottom));
  }
  .modal-card {
    max-height: calc(100vh - 20px - env(safe-area-inset-top));
    border-radius: 14px 14px 10px 10px;
  }
  .modal-card-large {
    max-width: 100%;
  }
  .modal-head {
    padding: 16px 16px 0;
  }
  .modal-body {
    padding: 14px 16px 18px;
    gap: 14px;
  }
  .modal-actions {
    flex-direction: column-reverse;
  }
  .modal-actions .btn {
    width: 100%;
    min-height: 42px;
    justify-content: center;
  }
  .setting-group {
    padding: 14px;
  }
  .size-select {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .size-option {
    text-align: center;
    padding: 9px 8px;
  }
  .meta-grid {
    grid-template-columns: 1fr;
  }
  .meta-item.span2 {
    grid-column: auto;
  }
  .info-img-wrap.large,
  .info-img-wrap.large img {
    max-height: 46vh;
  }
  .toast {
    top: auto;
    bottom: calc(16px + env(safe-area-inset-bottom));
    width: calc(100vw - 28px);
    max-width: 360px;
    text-align: center;
  }
}