/* ═══════════════════════════════════════════
   Baoyu Skills Website — Styles
   ═══════════════════════════════════════════ */

:root {
  --bg: #0f1117;
  --bg-card: #161822;
  --bg-card-hover: #1e2230;
  --bg-input: #1a1d2e;
  --border: #2a2d3a;
  --border-focus: #5b6ef0;
  --text: #e2e4e9;
  --text-dim: #8892a4;
  --text-bright: #f0f2f5;
  --accent: #5b6ef0;
  --accent-glow: rgba(91, 110, 240, 0.15);
  --green: #3fb980;
  --green-bg: rgba(63, 185, 128, 0.12);
  --red: #f0556a;
  --red-bg: rgba(240, 85, 106, 0.12);
  --yellow: #e5b348;
  --yellow-bg: rgba(229, 179, 72, 0.12);
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 14px;
  --transition: 0.2s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

/* Header */
.header {
  position: sticky; top: 0; z-index: 100;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 20px; font-weight: 700; color: var(--text-bright);
  cursor: pointer; user-select: none;
}
.logo-icon { font-size: 26px; }

.nav-tabs {
  display: flex; gap: 4px;
}
.nav-tab {
  padding: 6px 16px; border-radius: 20px;
  font-size: 13px; color: var(--text-dim); cursor: pointer;
  transition: var(--transition); border: 1px solid transparent;
}
.nav-tab:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-tab.active {
  color: var(--accent); background: var(--accent-glow);
  border-color: rgba(91,110,240,0.25);
}

/* Main */
.main { max-width: 1200px; margin: 0 auto; padding: 32px 24px 80px; }

/* Skill Grid */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.section-title {
  font-size: 15px; font-weight: 600; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.5px;
  margin: 28px 0 12px;
  padding-left: 2px;
}
.section-title:first-child { margin-top: 0; }

.skill-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
  cursor: pointer; transition: var(--transition);
  position: relative; overflow: hidden;
}
.skill-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(91,110,240,0.35);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(91,110,240,0.08);
}
.skill-card .card-icon { font-size: 32px; margin-bottom: 10px; }
.skill-card .card-name {
  font-size: 16px; font-weight: 600; color: var(--text-bright);
  margin-bottom: 4px;
}
.skill-card .card-name-en {
  font-size: 12px; color: var(--text-dim); margin-bottom: 8px;
}
.skill-card .card-desc {
  font-size: 13px; color: var(--text-dim);
  line-height: 1.5; display: -webkit-box;
  -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.skill-card .card-badge {
  position: absolute; top: 12px; right: 14px;
  font-size: 11px; padding: 3px 8px; border-radius: 12px;
  background: var(--accent-glow); color: var(--accent);
}

/* Skill Detail */
.skill-detail { max-width: 760px; margin: 0 auto; }
.back-btn {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--text-dim); font-size: 14px; cursor: pointer;
  margin-bottom: 20px; transition: var(--transition);
}
.back-btn:hover { color: var(--text); }

.detail-header {
  display: flex; align-items: flex-start; gap: 16px; margin-bottom: 20px;
}
.detail-header .detail-icon { font-size: 44px; }
.detail-header .detail-name {
  font-size: 24px; font-weight: 700; color: var(--text-bright);
}
.detail-header .detail-name-en {
  font-size: 14px; color: var(--text-dim); margin-top: 2px;
}
.detail-desc {
  font-size: 14px; color: var(--text-dim);
  line-height: 1.7; margin-bottom: 28px;
  padding: 16px; background: var(--bg-card); border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* Form */
.form-section {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px;
}
.form-group { margin-bottom: 18px; }
.form-group:last-child { margin-bottom: 0; }
.form-label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--text-dim); margin-bottom: 6px;
}
.form-label .required { color: var(--red); margin-left: 2px; }
.form-input, .form-textarea, .form-select {
  width: 100%; padding: 10px 14px;
  background: var(--bg-input); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 14px; font-family: inherit;
  transition: var(--transition); outline: none;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-textarea { min-height: 120px; resize: vertical; }
.form-select { cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238892a4' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
}
.form-hint {
  font-size: 12px; color: var(--text-dim); margin-top: 4px;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; padding: 10px 24px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600; cursor: pointer;
  border: none; transition: var(--transition); outline: none;
  font-family: inherit;
}
.btn-primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 2px 8px rgba(91,110,240,0.3);
}
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.btn-secondary {
  background: var(--bg-input); color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-card-hover); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-icon { padding: 8px; border-radius: 50%; }
.btn-full { width: 100%; justify-content: center; }

.form-actions { margin-top: 24px; display: flex; gap: 12px; }

/* Progress */
.progress-section {
  margin-top: 24px; padding: 20px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); text-align: center;
}
.progress-spinner {
  width: 36px; height: 36px; margin: 0 auto 12px;
  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); } }
.progress-text { font-size: 14px; color: var(--text-dim); }
.progress-skill { font-size: 13px; color: var(--accent); margin-top: 4px; }

/* Results */
.result-section {
  margin-top: 24px; padding: 24px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.result-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.result-title { font-size: 16px; font-weight: 600; color: var(--green); }
.result-status { font-size: 13px; }
.status-completed { color: var(--green); }
.status-failed { color: var(--red); }

.result-files { display: flex; flex-wrap: wrap; gap: 10px; }
.result-file {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; background: var(--bg-input);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 13px; transition: var(--transition);
}
.result-file:hover { border-color: var(--accent); }
.result-file .file-icon { font-size: 18px; }
.result-file .file-name { color: var(--text); max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.result-file .file-size { color: var(--text-dim); font-size: 11px; }
.result-file .file-actions { display: flex; gap: 6px; margin-left: auto; }
.result-file .file-action {
  padding: 4px 10px; border-radius: 14px; font-size: 11px;
  cursor: pointer; border: 1px solid var(--border);
  color: var(--text-dim); background: transparent;
  transition: var(--transition);
}
.result-file .file-action:hover { color: var(--accent); border-color: var(--accent); }

.result-text {
  margin-top: 16px; padding: 14px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 13px;
  color: var(--text-dim); max-height: 400px; overflow-y: auto;
  white-space: pre-wrap; font-family: 'SF Mono', 'Fira Code', monospace;
  line-height: 1.5;
}

/* Image Preview */
.image-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px; margin-top: 16px;
}
.image-preview-card {
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  transition: var(--transition);
}
.image-preview-card:hover { border-color: var(--accent); }
.image-preview-card img {
  width: 100%; height: 180px; object-fit: cover;
  display: block;
}
.image-preview-card .img-info {
  padding: 8px 10px; display: flex; align-items: center;
  justify-content: space-between;
}
.image-preview-card .img-name { font-size: 12px; color: var(--text); max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.image-preview-card .img-download {
  font-size: 11px; color: var(--accent); cursor: pointer;
  padding: 3px 8px; border-radius: 10px; border: 1px solid rgba(91,110,240,0.25);
}
.image-preview-card .img-download:hover { background: var(--accent-glow); }

/* Lightbox */
.lightbox {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.9); z-index: 200;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
}
.lightbox img {
  max-width: 90vw; max-height: 90vh;
  border-radius: var(--radius); box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.lightbox-close {
  position: absolute; top: 20px; right: 24px;
  font-size: 32px; color: #fff; cursor: pointer;
  width: 44px; height: 44px; display: flex; align-items: center;
  justify-content: center; border-radius: 50%;
  background: rgba(255,255,255,0.1);
}
.lightbox-close:hover { background: rgba(255,255,255,0.2); }

/* Toast */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  padding: 10px 20px; border-radius: 20px;
  font-size: 13px; color: #fff; background: var(--bg-card);
  border: 1px solid var(--border); z-index: 300;
  opacity: 0; transition: opacity 0.3s;
  pointer-events: none;
}
.toast.show { opacity: 1; }

/* Empty state */
.empty-state {
  text-align: center; padding: 60px 20px;
}
.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state .empty-text { font-size: 15px; color: var(--text-dim); }

/* Responsive */
@media (max-width: 640px) {
  .skill-grid { grid-template-columns: 1fr; }
  .header-inner { padding: 0 16px; }
  .main { padding: 20px 16px 60px; }
  .detail-header .detail-name { font-size: 20px; }
  .nav-tab { font-size: 12px; padding: 4px 10px; }
  .xhs-phase-step { font-size: 11px; }
  .xhs-framework-grid { grid-template-columns: 1fr 1fr; }
}

/* ═══════════════════════════════════════════
   XHS Two-Phase UI
   ═══════════════════════════════════════════ */

/* Phase bar */
.xhs-phase-bar {
  display: flex; align-items: center; justify-content: center;
  margin: 20px 0 24px; gap: 0;
}
.xhs-phase-step {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--text-dim); font-weight: 500;
  transition: color 0.2s;
}
.xhs-phase-step.active { color: var(--accent); }
.xhs-phase-step.done { color: var(--green, #22c55e); }
.xhs-phase-num {
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--bg-card); border: 2px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
  transition: all 0.2s;
}
.xhs-phase-step.active .xhs-phase-num {
  background: var(--accent); border-color: var(--accent); color: #fff;
}
.xhs-phase-step.done .xhs-phase-num {
  background: var(--green, #22c55e); border-color: var(--green, #22c55e); color: #fff;
}
.xhs-phase-connector {
  width: 40px; height: 2px; background: var(--border); margin: 0 8px;
}

/* Framework chips */
.xhs-framework-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px;
}
.xhs-fw-chip {
  padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg-card);
  font-size: 12px; cursor: pointer; text-align: center;
  transition: all 0.15s; color: var(--text-dim);
}
.xhs-fw-chip:hover { border-color: var(--accent); color: var(--text); }
.xhs-fw-chip.active {
  border-color: var(--accent); background: rgba(99, 102, 241, 0.1);
  color: var(--accent); font-weight: 600;
}

/* Card preview/editor */
.xhs-preview-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px; padding: 0 4px;
  font-size: 15px; font-weight: 600; color: var(--text);
}
.xhs-card-count {
  font-size: 12px; color: var(--accent); font-weight: 500;
  background: rgba(99, 102, 241, 0.1); padding: 3px 10px; border-radius: 12px;
}
.xhs-card-editor {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px; margin-bottom: 10px;
  transition: border-color 0.15s;
}
.xhs-card-editor:hover { border-color: rgba(99, 102, 241, 0.3); }
.xhs-card-label {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; font-weight: 600; color: var(--accent);
  margin-bottom: 8px;
}
.xhs-card-del {
  cursor: pointer; color: var(--text-dim); padding: 2px 6px;
  border-radius: 4px; font-size: 14px;
}
.xhs-card-del:hover { color: var(--red, #ef4444); background: rgba(239,68,68,0.1); }
.xhs-card-textarea {
  width: 100%; padding: 10px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--bg);
  color: var(--text); font-size: 13px; line-height: 1.5;
  resize: vertical; font-family: inherit;
}
.xhs-card-textarea:focus { outline: none; border-color: var(--accent); }

.xhs-add-card {
  text-align: center; padding: 12px; border-radius: 10px;
  border: 2px dashed var(--border); cursor: pointer;
  color: var(--text-dim); font-size: 13px;
  transition: all 0.15s;
}
.xhs-add-card:hover { border-color: var(--accent); color: var(--accent); }

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

/* Generate summary chips */
.xhs-gen-summary {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px; margin-bottom: 16px;
}
.xhs-gen-cards { display: flex; flex-wrap: wrap; gap: 6px; }
.xhs-gen-chip {
  padding: 3px 10px; border-radius: 14px;
  background: rgba(99, 102, 241, 0.1); color: var(--accent);
  font-size: 12px; font-weight: 500;
}

/* XHS Results: actions row */
.xhs-actions-row {
  display: flex; gap: 10px; margin: 16px 0; flex-wrap: wrap; justify-content: center;
}
.xhs-actions-row .btn { flex: 1; min-width: 130px; font-size: 13px; padding: 10px 14px; }

/* XHS original content section */
.xhs-original-content {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; overflow: hidden; margin: 16px 0;
}
.xhs-oc-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px; border-bottom: 1px solid var(--border);
  font-size: 14px; font-weight: 600;
}
.xhs-copy-btn {
  cursor: pointer; font-size: 12px; color: var(--accent);
  padding: 4px 10px; border-radius: 6px; background: rgba(99,102,241,0.1);
}
.xhs-copy-btn:hover { background: rgba(99,102,241,0.2); }
.xhs-oc-body {
  padding: 12px 14px; font-size: 13px; line-height: 1.7;
  white-space: pre-wrap; color: var(--text); max-height: 300px; overflow-y: auto;
}

/* XHS tags */
.xhs-tags-section { margin: 12px 0; }
.xhs-tags-header { font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.xhs-tags-list { display: flex; flex-wrap: wrap; gap: 8px; }
.xhs-tag {
  display: inline-block; padding: 4px 12px; border-radius: 14px;
  background: linear-gradient(135deg, rgba(99,102,241,0.12), rgba(168,85,247,0.12));
  color: var(--accent); font-size: 12px; cursor: pointer; transition: all 0.15s;
  border: 1px solid rgba(99,102,241,0.2);
}
.xhs-tag:hover { background: rgba(99,102,241,0.25); transform: scale(1.05); }
.xhs-tag-sm { font-size: 11px; padding: 2px 8px; }

/* Saved collection */
.saved-gallery {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px;
}
.saved-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; overflow: hidden; cursor: pointer; transition: border-color 0.15s;
}
.saved-card:hover { border-color: var(--accent); }
.saved-card img {
  width: 100%; height: 120px; object-fit: cover;
}
.saved-no-img {
  width: 100%; height: 120px; display: flex; align-items: center; justify-content: center;
  font-size: 32px; background: var(--bg); color: var(--text-dim);
}
.saved-info { padding: 10px; }
.saved-title { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.saved-meta { font-size: 11px; color: var(--text-dim); }
.saved-actions { margin-top: 6px; }
.saved-del {
  cursor: pointer; font-size: 11px; color: var(--red, #ef4444); padding: 2px 6px;
}
.saved-del:hover { background: rgba(239,68,68,0.1); border-radius: 4px; }

.saved-text-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px; margin-bottom: 10px;
}
.saved-text-header {
  display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px;
}
.saved-text-title { font-size: 14px; font-weight: 600; }
.saved-text-date { font-size: 11px; color: var(--text-dim); }
.saved-text-preview { font-size: 12px; line-height: 1.6; color: var(--text-dim); }
.saved-text-actions { margin-top: 10px; display: flex; gap: 10px; }
.saved-text-tags { display: flex; flex-wrap: wrap; gap: 6px; }