:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #1a1a1a);
  --hint: var(--tg-theme-hint-color, #999999);
  --link: var(--tg-theme-link-color, #2678b6);
  --btn: var(--tg-theme-button-color, #2678b6);
  --btn-text: var(--tg-theme-button-text-color, #ffffff);
  --secondary-bg: var(--tg-theme-secondary-bg-color, #f0f0f0);
  --section-bg: var(--tg-theme-section-bg-color, #ffffff);
  --destructive: var(--tg-theme-destructive-text-color, #ff3b30);
  --radius: 14px;
  --radius-sm: 10px;
  --green: #34c759;
  --red: #ff3b30;
  --orange: #ff9500;
  --yellow: #ffcc00;
  --transition: 0.2s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', Roboto, sans-serif;
  background: var(--secondary-bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: 24px;
  -webkit-font-smoothing: antialiased;
}

#app { max-width: 500px; margin: 0 auto; padding: 0 12px; }

/* Header */
.header { text-align: center; padding: 16px 0 8px; }
.header-top { display: flex; align-items: center; justify-content: center; gap: 8px; }
.header h1 { font-size: 20px; font-weight: 800; letter-spacing: -0.3px; }
.subtitle { font-size: 12px; color: var(--hint); margin-top: 2px; }
.badge {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--btn); color: var(--btn-text); font-size: 11px;
  font-weight: 700; min-width: 20px; height: 20px; border-radius: 10px; padding: 0 6px;
}

/* Navigation */
.nav-tabs {
  display: flex; gap: 3px; padding: 3px;
  background: var(--secondary-bg); border-radius: var(--radius);
  margin-bottom: 12px; overflow-x: auto; scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.nav-tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 0 0 auto; padding: 9px 12px; border: none; background: transparent;
  border-radius: var(--radius-sm); font-size: 12px; font-weight: 600;
  color: var(--hint); cursor: pointer; white-space: nowrap;
  transition: all var(--transition);
}
.tab.active {
  background: var(--section-bg); color: var(--text);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

/* Tab Content */
.tab-content { display: none; animation: fadeIn 0.2s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* Cards */
.card {
  background: var(--section-bg);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 10px;
  box-shadow: 0 0.5px 1px rgba(0,0,0,0.04);
}
.card h2 { font-size: 17px; font-weight: 700; margin-bottom: 3px; letter-spacing: -0.2px; }
.card h3 { font-size: 15px; font-weight: 600; margin-bottom: 10px; }
.card-desc { font-size: 12px; color: var(--hint); margin-bottom: 14px; line-height: 1.4; }
.result-card {
  border-left: 3px solid var(--btn);
  animation: slideIn 0.3s ease;
}
@keyframes slideIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.result-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.mp-badge {
  display: inline-block; padding: 3px 10px; border-radius: 6px;
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  background: #7B2D8E; color: white;
}
.mp-badge.ozon { background: #005BFF; }

/* Forms */
.form-group { margin-bottom: 12px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 5px; color: var(--text); }
.form-row { display: flex; gap: 10px; }
.form-group.half { flex: 1; }

input, textarea, select {
  width: 100%; padding: 11px 13px; border: 1.5px solid var(--secondary-bg);
  border-radius: var(--radius-sm); font-size: 15px; background: var(--bg);
  color: var(--text); outline: none; transition: border-color var(--transition);
  font-family: inherit; -webkit-appearance: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--btn); }
textarea { resize: vertical; min-height: 60px; }
select { cursor: pointer; }

/* Toggle buttons */
.toggle-group { display: flex; gap: 6px; }
.toggle-group.three .toggle { flex: 1; }
.toggle {
  flex: 1; padding: 9px 12px; border: 1.5px solid var(--secondary-bg);
  background: var(--bg); border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 600; color: var(--hint);
  cursor: pointer; transition: all var(--transition); text-align: center;
}
.toggle.active { border-color: var(--btn); color: var(--btn); background: color-mix(in srgb, var(--btn) 8%, var(--bg)); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 20px; border: none;
  border-radius: var(--radius-sm); font-size: 15px; font-weight: 600;
  cursor: pointer; width: 100%; text-align: center;
  transition: opacity var(--transition), transform 0.1s;
}
.btn:active { transform: scale(0.98); }
.btn.primary { background: var(--btn); color: var(--btn-text); }
.btn.secondary { background: var(--secondary-bg); color: var(--text); }
.btn.outline { background: transparent; border: 1.5px solid var(--secondary-bg); color: var(--text); margin-top: 6px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.btn-row { display: flex; gap: 8px; margin-top: 10px; }
.btn-row .btn { flex: 1; }

/* Star Picker */
.star-picker { display: flex; gap: 6px; }
.star {
  font-size: 28px; cursor: pointer; color: var(--secondary-bg);
  transition: color var(--transition), transform 0.15s; line-height: 1;
}
.star.active { color: var(--yellow); }
.star:active { transform: scale(1.2); }
.star-label { font-size: 12px; color: var(--hint); margin-top: 4px; display: inline-block; }

/* Quick questions */
.quick-questions { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.quick-q {
  padding: 7px 12px; border: 1.5px solid var(--secondary-bg);
  background: var(--bg); border-radius: 20px; font-size: 12px;
  color: var(--text); cursor: pointer; transition: all var(--transition);
}
.quick-q:active { background: var(--secondary-bg); }

/* Results */
.result-field { margin-bottom: 14px; }
.result-field .label {
  font-size: 11px; color: var(--hint); text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 4px; font-weight: 600;
}
.result-field .value { font-size: 14px; line-height: 1.55; white-space: pre-wrap; }
.result-field .value.mono { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 13px; }

.keywords-list { display: flex; flex-wrap: wrap; gap: 5px; }
.keyword-tag {
  display: inline-block; padding: 4px 10px; background: var(--secondary-bg);
  border-radius: 6px; font-size: 12px; font-weight: 500;
}
.tip-item {
  padding: 8px 0; font-size: 13px; line-height: 1.45;
  border-bottom: 1px solid var(--secondary-bg);
}
.tip-item:last-child { border: none; }

/* Unit economics */
.econ-row {
  display: flex; justify-content: space-between; padding: 9px 0;
  font-size: 13px; border-bottom: 1px solid var(--secondary-bg);
}
.econ-row:last-child { border: none; }
.econ-row .econ-label { color: var(--hint); }
.econ-row .econ-value { font-weight: 600; font-variant-numeric: tabular-nums; }
.econ-row.profit { font-size: 15px; font-weight: 700; padding: 12px 0; }
.econ-row.profit .econ-value.positive { color: var(--green); }
.econ-row.profit .econ-value.negative { color: var(--red); }
.econ-section { margin-top: 14px; padding-top: 14px; border-top: 2px solid var(--secondary-bg); }
.verdict {
  padding: 12px 14px; background: var(--secondary-bg); border-radius: var(--radius-sm);
  margin-top: 14px; font-size: 13px; line-height: 1.5;
}

/* Advanced section */
details.advanced-section { margin-bottom: 14px; }
details.advanced-section summary {
  font-size: 13px; font-weight: 600; color: var(--link);
  cursor: pointer; padding: 8px 0; list-style: none;
}
details.advanced-section summary::before { content: "▸ "; }
details.advanced-section[open] summary::before { content: "▾ "; }
details.advanced-section > div { padding-top: 10px; }

/* Audit score */
.audit-score-wrap { text-align: center; margin-bottom: 16px; }
.audit-score {
  display: inline-flex; align-items: center; justify-content: center;
  width: 80px; height: 80px; border-radius: 50%; font-size: 28px; font-weight: 800;
  background: var(--secondary-bg); color: var(--text);
  transition: all 0.5s ease;
}
.audit-score.good { background: color-mix(in srgb, var(--green) 15%, var(--bg)); color: var(--green); }
.audit-score.medium { background: color-mix(in srgb, var(--orange) 15%, var(--bg)); color: var(--orange); }
.audit-score.bad { background: color-mix(in srgb, var(--red) 15%, var(--bg)); color: var(--red); }
.audit-score-label { font-size: 12px; color: var(--hint); margin-top: 4px; }

.audit-item {
  display: flex; align-items: flex-start; gap: 8px; padding: 10px 0;
  border-bottom: 1px solid var(--secondary-bg); font-size: 13px; line-height: 1.4;
}
.audit-item:last-child { border: none; }
.audit-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }

/* Review preview */
.review-preview { margin-bottom: 12px; }
.review-original {
  padding: 12px; background: var(--secondary-bg); border-radius: var(--radius-sm);
  margin-bottom: 10px; font-size: 13px;
}
.review-stars { font-size: 14px; display: block; margin-bottom: 4px; }
.review-original p { color: var(--hint); font-style: italic; }
.review-reply { padding: 12px; background: color-mix(in srgb, var(--btn) 6%, var(--bg)); border-radius: var(--radius-sm); font-size: 14px; line-height: 1.5; }

/* Chat history (advisor) */
.chat-history { display: flex; flex-direction: column; gap: 8px; }
.chat-msg {
  padding: 12px 14px; border-radius: var(--radius); font-size: 14px;
  line-height: 1.5; max-width: 90%; animation: slideIn 0.2s ease;
}
.chat-msg.user { background: var(--btn); color: var(--btn-text); align-self: flex-end; border-bottom-right-radius: 4px; }
.chat-msg.bot { background: var(--section-bg); align-self: flex-start; border-bottom-left-radius: 4px; }

/* History */
.history-filters { display: flex; gap: 6px; flex-wrap: wrap; }
.filter {
  padding: 6px 14px; border: 1.5px solid var(--secondary-bg); background: var(--bg);
  border-radius: 20px; font-size: 12px; font-weight: 600; color: var(--hint);
  cursor: pointer; transition: all var(--transition);
}
.filter.active { border-color: var(--btn); color: var(--btn); background: color-mix(in srgb, var(--btn) 8%, var(--bg)); }

.history-list { display: flex; flex-direction: column; gap: 8px; }
.history-item {
  background: var(--section-bg); border-radius: var(--radius); padding: 14px;
  cursor: pointer; transition: opacity var(--transition);
  animation: slideIn 0.2s ease;
}
.history-item:active { opacity: 0.7; }
.history-item .history-type {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.5px; margin-bottom: 4px;
}
.history-item .history-type.seo { color: #7B2D8E; }
.history-item .history-type.review { color: #FF6B00; }
.history-item .history-type.calc { color: #007AFF; }
.history-item .history-type.audit { color: var(--green); }
.history-item .history-title { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.history-item .history-date { font-size: 11px; color: var(--hint); }

.empty-state { text-align: center; padding: 40px 20px; }
.empty-state p { font-size: 14px; color: var(--hint); }
.empty-state .hint { font-size: 12px; margin-top: 4px; }

/* Batch results */
.batch-item {
  background: var(--section-bg); border-radius: var(--radius-sm);
  padding: 14px; margin-top: 8px;
}
.batch-item .batch-review { font-size: 12px; color: var(--hint); margin-bottom: 6px; }
.batch-item .batch-reply { font-size: 14px; line-height: 1.5; }
.batch-item .btn { margin-top: 8px; padding: 8px; font-size: 13px; }

/* Loading */
.loading {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5); display: flex;
  flex-direction: column; align-items: center; justify-content: center;
  z-index: 100; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.spinner {
  width: 36px; height: 36px; border: 3px solid rgba(255,255,255,0.2);
  border-top-color: #fff; border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading p { color: #fff; margin-top: 10px; font-size: 14px; font-weight: 500; }

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, var(--secondary-bg) 25%, color-mix(in srgb, var(--secondary-bg) 60%, var(--bg)) 50%, var(--secondary-bg) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}
.skeleton-line { height: 14px; margin-bottom: 10px; }
.skeleton-line.short { width: 60%; }
.skeleton-line.medium { width: 80%; }
.skeleton-block { height: 80px; margin-bottom: 10px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Scroll indicator for tabs */
.nav-tabs::after {
  content: ""; position: sticky; right: 0; flex-shrink: 0;
  width: 20px;
  background: linear-gradient(to right, transparent, var(--secondary-bg));
}

/* Toast notifications */
.toast {
  position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 10px 20px;
  border-radius: 20px; font-size: 13px; font-weight: 600;
  z-index: 150; animation: toastIn 0.3s ease, toastOut 0.3s ease 2s forwards;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
@keyframes toastIn { from { opacity: 0; transform: translateX(-50%) translateY(20px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }
@keyframes toastOut { from { opacity: 1; } to { opacity: 0; } }

/* Onboarding */
.onboarding {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg); z-index: 200; display: flex;
  align-items: center; justify-content: center; padding: 20px;
}
.onboarding-card { max-width: 360px; text-align: center; }
.onboarding-icon { font-size: 56px; margin-bottom: 12px; }
.onboarding-card h2 { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.onboarding-card > p { font-size: 14px; color: var(--hint); margin-bottom: 24px; }
.onboarding-features { text-align: left; margin-bottom: 28px; }
.onboarding-feature {
  display: flex; align-items: center; gap: 10px; padding: 10px 0;
  font-size: 15px; font-weight: 500;
  border-bottom: 1px solid var(--secondary-bg);
}
.onboarding-feature:last-child { border: none; }
.onboarding-feature span { font-size: 20px; width: 28px; text-align: center; }

/* Share button in results */
.share-row { display: flex; gap: 8px; margin-top: 8px; }
.share-row .btn { flex: 1; font-size: 13px; padding: 10px; }

.hidden { display: none !important; }

/* Scrollbar */
::-webkit-scrollbar { width: 0; height: 0; }