/* ═══════════════════════════════════════════════════════ */
/*  HOOH — Telegram-Inspired Redesign                     */
/*  Design Tokens & CSS Variables                         */
/* ═══════════════════════════════════════════════════════ */

:root,
[data-theme="light"] {
  --primary: #3B82F6;
  --primary-hover: #2563EB;
  --primary-light: #EBF2FF;
  --primary-border: #BFDBFE;
  --bg: #FFFFFF;
  --bg-secondary: #F7F8FA;
  --surface: #F7F8FA;
  --card-bg: #FFFFFF;
  --sidebar-bg: #FFFFFF;
  --text-primary: #222222;
  --text-secondary: #8E8E93;
  --text-muted: #C7C7CC;
  --border: #E8E8E8;
  --border-strong: #D1D5DB;
  --red: #EF4444;
  --red-bg: #FEF2F2;
  --legal: #3B82F6;
  --legal-bg: #EFF6FF;
  --medical: #10B981;
  --medical-bg: #ECFDF5;
  --business: #F59E0B;
  --business-bg: #FFFBEB;
  --chat-incoming: #F0F1F3;
  --chat-outgoing: #3B82F6;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.08);
  --shadow-hover: 0 6px 24px rgba(0,0,0,.10);
  --sidebar-w: 260px;
  --chat-w: 420px;
  --radius: 12px;
  --radius-lg: 20px;
  --font-body: 'General Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Cabinet Grotesk', 'General Sans', sans-serif;
  --modal-backdrop: rgba(0,0,0,.35);
}

[data-theme="dark"] {
  --primary: #3B82F6;
  --primary-hover: #60A5FA;
  --primary-light: #1E3A5F;
  --primary-border: #2B3D4F;
  --bg: #17212B;
  --bg-secondary: #0E1621;
  --surface: #1E2C3A;
  --card-bg: #1E2C3A;
  --sidebar-bg: #0E1621;
  --text-primary: #E4E6EB;
  --text-secondary: #8E9BAA;
  --text-muted: #5A6A7A;
  --border: #2B3D4F;
  --border-strong: #3A4F63;
  --red: #EF4444;
  --red-bg: #3C1F1F;
  --legal: #60A5FA;
  --legal-bg: #1E3A5F;
  --medical: #34D399;
  --medical-bg: #1A3A2A;
  --business: #FBBF24;
  --business-bg: #3A2F1A;
  --chat-incoming: #1E2C3A;
  --chat-outgoing: #3B82F6;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.15);
  --shadow-md: 0 4px 16px rgba(0,0,0,.25);
  --shadow-hover: 0 6px 24px rgba(0,0,0,.30);
  --modal-backdrop: rgba(0,0,0,.55);
}

/* ═══════════════════════════════════════════════════════ */
/*  BASE                                                   */
/* ═══════════════════════════════════════════════════════ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
  height: 100vh;
  font-size: 14px;
  line-height: 1.5;
  transition: background .2s ease, color .2s ease;
}

/* ═══════════════════════════════════════════════════════ */
/*  SVG ICON SYSTEM                                        */
/* ═══════════════════════════════════════════════════════ */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-sm svg { width: 16px; height: 16px; }
.icon-lg svg { width: 24px; height: 24px; }

/* ═══════════════════════════════════════════════════════ */
/*  LOGIN SCREEN                                           */
/* ═══════════════════════════════════════════════════════ */
#login-screen {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; overflow: hidden;
  background: var(--bg);
}
.login-left {
  flex: 0 0 480px;
  background: var(--bg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 60px 56px;
}
.login-right {
  flex: 1;
  background: linear-gradient(135deg, #DBEAFE 0%, #EDE9FE 100%);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
[data-theme="dark"] .login-right {
  background: linear-gradient(135deg, #1E3A5F 0%, #2A1F4E 100%);
}
.login-logo {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 40px;
}
.login-logo-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
}
.login-logo-name {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}
.login-tagline {
  font-family: var(--font-display);
  font-size: 22px; font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 8px;
  line-height: 1.3;
}
.login-sub {
  font-size: 14px; color: var(--text-secondary);
  text-align: center; margin-bottom: 36px;
}
.login-btn {
  width: 100%; padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 14px; font-weight: 600;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  margin-bottom: 10px;
  transition: all .15s ease;
  border: 1.5px solid var(--border-strong);
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
}
.login-btn:hover { background: var(--surface); border-color: var(--text-muted); }
.login-btn.yellow {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
}
.login-btn.yellow:hover { background: var(--primary-hover); }
.login-divider { display: flex; align-items: center; gap: 14px; margin: 18px 0; width: 100%; }
.login-divider-line { flex: 1; height: 1px; background: var(--border); }
.login-divider-text { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.login-signup { margin-top: 20px; font-size: 13px; color: var(--text-secondary); text-align: center; }
.login-signup a { color: var(--primary); cursor: pointer; font-weight: 600; text-decoration: none; }
.login-terms { margin-top: 24px; font-size: 11px; color: var(--text-muted); text-align: center; line-height: 1.6; }
.login-terms a { color: var(--primary); text-decoration: none; }

/* Login right panel — clean card */
.login-3d-card {
  width: 260px; padding: 40px 32px;
  background: rgba(255,255,255,.15);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.25);
}
.login-3d-icon {
  margin-bottom: 16px;
}
.login-3d-name {
  font-family: var(--font-display);
  font-size: 30px; font-weight: 800;
  color: var(--primary);
  letter-spacing: -1px;
}
.login-3d-sub {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 6px;
  text-align: center;
}
.login-right-deco {
  position: absolute;
  border-radius: 50%;
  background: rgba(59,130,246,.08);
}
.login-right-deco.d1 { top: -40px; left: -40px; width: 200px; height: 200px; }
.login-right-deco.d2 { bottom: 60px; right: 40px; width: 140px; height: 140px; }

/* ═══════════════════════════════════════════════════════ */
/*  APP LAYOUT                                             */
/* ═══════════════════════════════════════════════════════ */
#main-app { display: flex; height: 100vh; overflow: hidden; }

/* ═══════════════════════════════════════════════════════ */
/*  SIDEBAR                                                */
/* ═══════════════════════════════════════════════════════ */
#sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  height: calc(100vh - 56px); margin-top: 56px;
  overflow: hidden;
  transition: width .25s ease;
  position: relative;
}
#sidebar.compact { width: 64px; }
#sidebar.compact .sb-hide { display: none !important; }
#sidebar.compact .sidebar-nav-item { justify-content: center; padding: 10px; }
#sidebar.compact .sidebar-upload-btn { justify-content: center; padding: 10px; }
#sidebar.compact .sidebar-hooh-btn { padding: 10px; }

.sidebar-header { padding: 16px 14px 12px; flex-shrink: 0; }
.sidebar-logo-row {
  display: flex; align-items: center; gap: 10px;
  cursor: pointer; margin-bottom: 12px;
}
.sidebar-logo-icon {
  width: 32px; height: 32px; min-width: 32px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; color: var(--primary);
}
.sidebar-logo-text {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.sidebar-search {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 11px; border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  margin-bottom: 4px;
}
.sidebar-search input {
  flex: 1; border: none; outline: none;
  background: transparent; font-size: 13px;
  color: var(--text-primary);
  font-family: var(--font-body);
  min-width: 0;
}
.sidebar-search input::placeholder { color: var(--text-muted); }
.sb-search-icon { color: var(--text-muted); flex-shrink: 0; }

.sidebar-nav { padding: 6px 10px; flex-shrink: 0; }
.sidebar-divider { height: 1px; background: var(--border); margin: 6px 12px; flex-shrink: 0; }
.sidebar-nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: 8px;
  cursor: pointer; transition: all .15s ease;
  margin-bottom: 2px; border: none;
  background: transparent; width: 100%;
  text-align: left; position: relative;
  overflow: hidden; white-space: nowrap;
  font-family: var(--font-body);
  color: var(--text-secondary);
}
.sidebar-nav-item:hover { background: var(--surface); color: var(--text-primary); }
.sidebar-nav-item.active {
  background: transparent;
  border-left: 3px solid var(--primary);
  padding-left: 7px;
}
.sidebar-nav-item.active .sidebar-nav-text { color: var(--primary); font-weight: 600; }
.sidebar-nav-item.active .icon { color: var(--primary); }
.sidebar-nav-icon { flex-shrink: 0; width: 20px; text-align: center; color: inherit; }
.sidebar-nav-text { font-size: 13px; font-weight: 500; color: var(--text-primary); flex: 1; }
.sidebar-nav-badge {
  font-size: 11px; font-weight: 700;
  background: var(--red); color: #fff;
  padding: 2px 7px; border-radius: 10px;
  flex-shrink: 0;
}

.sidebar-upload-btn {
  display: flex; align-items: center; gap: 9px;
  padding: 10px 12px; border-radius: 8px;
  background: var(--primary); border: none;
  cursor: pointer; width: 100%;
  margin-bottom: 4px;
  transition: background .15s ease;
  font-family: var(--font-body);
  color: #fff;
}
.sidebar-upload-btn:hover { background: var(--primary-hover); }
.sidebar-upload-text { font-size: 13px; font-weight: 700; color: #fff; }

.sidebar-recent-wrap { flex: 1; overflow-y: auto; padding: 4px 10px 8px; min-height: 0; }
.sidebar-recent-label {
  font-size: 10px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--text-muted);
  padding: 8px 8px 4px;
}
.sidebar-recent-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; border-radius: 7px;
  cursor: pointer; transition: background .15s ease;
}
.sidebar-recent-item:hover { background: var(--surface); }
.sidebar-recent-icon { flex-shrink: 0; color: var(--text-muted); }
.sidebar-recent-text {
  font-size: 12px; color: var(--text-secondary);
  flex: 1; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}

.sidebar-bottom { padding: 10px 12px 14px; flex-shrink: 0; }
.sidebar-hooh-btn {
  width: 100%; padding: 11px 14px;
  border-radius: 10px;
  background: var(--primary); border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 13px; font-weight: 700; color: #fff;
  margin-bottom: 10px; position: relative;
  transition: background .15s ease;
  font-family: var(--font-body);
  overflow: hidden;
}
.sidebar-hooh-btn:hover { background: var(--primary-hover); }

.sidebar-pro-row { display: flex; align-items: center; justify-content: space-between; padding: 6px 4px 0; }
.sidebar-pro-badge {
  font-size: 12px; font-weight: 700;
  color: var(--primary);
}
.sidebar-plans-btn {
  font-size: 12px; color: var(--primary);
  cursor: pointer; font-weight: 500;
  background: none; border: none; padding: 0;
  font-family: var(--font-body);
}
.sidebar-plans-btn:hover { text-decoration: underline; }

.sidebar-toggle-btn {
  position: absolute; top: 20px; right: -12px;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px; color: var(--text-secondary);
  z-index: 10; transition: all .15s ease;
}
.sidebar-toggle-btn:hover { background: var(--surface); }

/* ═══════════════════════════════════════════════════════ */
/*  CENTER PANEL                                           */
/* ═══════════════════════════════════════════════════════ */
#center-panel {
  flex: 1; display: flex; flex-direction: column;
  min-width: 0; height: calc(100vh - 56px);
  margin-top: 56px;
  overflow: hidden; background: var(--bg-secondary);
}
.center-view { display: none; flex-direction: column; flex: 1; min-height: 0; overflow: hidden; }
.center-view.active { display: flex; }

/* ── DOCUMENTS VIEW ── */
.docs-header {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.docs-header-title {
  font-family: var(--font-display);
  font-size: 16px; font-weight: 700;
  color: var(--text-primary);
}
.docs-header-count { font-size: 12px; color: var(--text-muted); flex: 1; }
.docs-filter-row {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0; flex-wrap: wrap;
}
.filter-select {
  padding: 6px 10px; border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 12px; font-family: var(--font-body);
  background: var(--bg); color: var(--text-primary);
  cursor: pointer; outline: none;
}
.filter-select:focus { border-color: var(--primary); }
.view-toggle-btn {
  display: flex; align-items: center; gap: 4px;
  padding: 6px 10px; border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: 12px; color: var(--text-secondary);
  cursor: pointer; transition: all .15s ease;
  font-family: var(--font-body);
}
.view-toggle-btn:hover { border-color: var(--border-strong); color: var(--text-primary); }
.view-toggle-btn.active {
  background: var(--primary-light);
  border-color: var(--primary-border);
  color: var(--primary);
}
.docs-scroll { flex: 1; overflow-y: auto; padding: 18px 20px; }
.docs-grid-v3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }

/* Doc card — Telegram flat style with left indicator */
.doc-card-v3 {
  background: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden; cursor: pointer;
  transition: all .15s ease;
  position: relative;
}
.doc-card-v3:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
  border-color: var(--border-strong);
}
.doc-card-gradient {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 4px; height: 100%;
}
.doc-card-body { padding: 14px 14px 14px 18px; }
.doc-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.doc-card-type {
  font-size: 10px; color: var(--text-muted);
  font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.8px;
}
.doc-card-top-right { display: flex; align-items: center; gap: 5px; }
.doc-card-pdf-badge {
  font-size: 9px; font-weight: 700;
  padding: 2px 5px; border-radius: 4px;
  background: var(--red-bg); color: #DC2626;
  border: 1px solid #FECACA;
}
[data-theme="dark"] .doc-card-pdf-badge {
  background: #3C1F1F; color: #F87171; border-color: #5C2F2F;
}
.doc-card-more {
  width: 22px; height: 22px; border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--text-muted);
  font-size: 13px; border: none;
  background: transparent; transition: all .15s ease;
}
.doc-card-more:hover { background: var(--surface); color: var(--text-primary); }
.doc-card-title {
  font-size: 13px; font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 5px; line-height: 1.3;
}
.doc-card-summary {
  font-size: 12px; color: var(--text-secondary);
  line-height: 1.5; margin-bottom: 10px;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}
.doc-card-footer { display: flex; align-items: center; justify-content: space-between; }
.doc-card-agent {
  display: flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 600;
  padding: 3px 8px; border-radius: 6px;
}
.doc-card-actions { display: flex; align-items: center; gap: 4px; }
.doc-card-star {
  font-size: 13px; cursor: pointer;
  opacity: .25; transition: opacity .15s ease;
  line-height: 1; background: none; border: none;
  color: var(--text-muted);
}
.doc-card-star:hover, .doc-card-star.starred { opacity: 1; color: #FBBF24; }
.doc-card-urgent-dot {
  position: absolute; top: 14px; right: 14px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 3px rgba(239,68,68,.15);
}

/* ── DOCUMENT DETAIL VIEW ── */
.doc-detail-toolbar {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 18px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.doc-back-btn {
  display: flex; align-items: center; gap: 5px;
  padding: 7px 12px; border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: 12px; color: var(--text-secondary);
  cursor: pointer; transition: all .15s ease;
  font-family: var(--font-body); flex-shrink: 0;
}
.doc-back-btn:hover { border-color: var(--primary); color: var(--primary); }
.doc-detail-name {
  font-size: 14px; font-weight: 700;
  color: var(--text-primary); flex: 1;
  min-width: 0; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
}
.doc-agent-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600; flex-shrink: 0;
}
.doc-icon-btn {
  width: 32px; height: 32px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; border: 1px solid var(--border);
  background: var(--bg);
  transition: all .15s ease; flex-shrink: 0;
  color: var(--text-secondary);
}
.doc-icon-btn:hover { background: var(--surface); border-color: var(--border-strong); }
.doc-icon-btn.star-btn:hover { border-color: #FBBF24; color: #FBBF24; }

.attention-banner-v3 {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 18px;
  background: #FFFBEB; border-bottom: 2px solid #FDE68A;
  flex-shrink: 0; cursor: pointer;
  transition: background .15s ease;
}
[data-theme="dark"] .attention-banner-v3 { background: #3A2F1A; border-color: #5C4A1A; }
.attention-banner-v3:hover { background: #FEF3C7; }
[data-theme="dark"] .attention-banner-v3:hover { background: #4A3F2A; }
.att-icon { flex-shrink: 0; margin-top: 1px; color: #D97706; }
.att-text { flex: 1; font-size: 13px; color: #92400E; font-weight: 500; line-height: 1.5; }
[data-theme="dark"] .att-text { color: #FBBF24; }
.att-arrow { color: #B45309; font-size: 13px; flex-shrink: 0; margin-top: 2px; }
[data-theme="dark"] .att-arrow { color: #FBBF24; }

.doc-tabs-bar {
  display: flex; align-items: center; gap: 4px;
  padding: 10px 18px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.doc-tab {
  padding: 7px 16px; border-radius: 8px;
  font-size: 13px; font-weight: 500;
  cursor: pointer; border: none;
  background: transparent; color: var(--text-secondary);
  transition: all .15s ease;
  font-family: var(--font-body);
}
.doc-tab:hover { background: var(--surface); color: var(--text-primary); }
.doc-tab.active {
  background: var(--primary);
  color: #fff; font-weight: 600;
}
.doc-tab-search {
  margin-left: auto;
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 8px;
  background: var(--surface); border: 1px solid var(--border);
}
.doc-tab-search input {
  border: none; outline: none;
  background: transparent; font-size: 12px;
  font-family: var(--font-body);
  color: var(--text-primary); width: 120px;
}
.doc-tab-search input::placeholder { color: var(--text-muted); }

.doc-content-area { flex: 1; overflow: hidden; display: flex; flex-direction: column; }
.doc-tab-panel { display: none; flex: 1; overflow-y: auto; }
.doc-tab-panel.active { display: block; }

/* OCR tab */
.doc-ocr-body { padding: 24px; max-width: 720px; }
.doc-ocr-text {
  font-size: 13px; line-height: 1.8;
  color: var(--text-primary);
  white-space: pre-line;
  font-family: var(--font-body);
}

/* Original tab */
.doc-original-body { padding: 24px; display: flex; justify-content: center; }
.doc-preview-paper {
  background: var(--card-bg);
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0,0,0,.10);
  padding: 36px; max-width: 560px; width: 100%;
  border: 1px solid var(--border);
}
.doc-preview-header-section { text-align: center; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 2px solid var(--border); }
.doc-preview-hospital { font-family: var(--font-display); font-size: 15px; font-weight: 800; letter-spacing: .3px; }
.doc-preview-clinic { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.doc-preview-line { height: 9px; background: var(--border); border-radius: 3px; margin-bottom: 8px; }
.doc-preview-line.w90 { width: 90%; } .doc-preview-line.w75 { width: 75%; }
.doc-preview-line.w60 { width: 60%; } .doc-preview-line.w45 { width: 45%; }
.doc-preview-divider { height: 1px; background: var(--border); margin: 14px 0; }
.doc-preview-stamp {
  width: 64px; height: 64px; border-radius: 50%;
  border: 3px solid var(--medical);
  display: flex; align-items: center; justify-content: center;
  margin: 16px auto 0; color: var(--medical);
  font-size: 22px; font-weight: 700;
}

/* Summary tab */
.doc-summary-body { padding: 20px; }
.summary-text-block { font-size: 14px; color: var(--text-primary); line-height: 1.7; margin-bottom: 16px; }
.collapsible-v3 {
  border: 1px solid var(--border); border-radius: 10px;
  overflow: hidden; margin-bottom: 10px;
  background: var(--card-bg);
}
.collapsible-v3-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 13px 16px; cursor: pointer;
  font-size: 13px; font-weight: 600;
  transition: background .15s ease;
}
.collapsible-v3-head:hover { background: var(--surface); }
.collapsible-v3-arrow { color: var(--text-muted); font-size: 11px; transition: transform .25s; }
.collapsible-v3-arrow.open { transform: rotate(180deg); }
.collapsible-v3-body {
  border-top: 1px solid var(--border);
  padding: 0 16px; max-height: 0; overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
}
.collapsible-v3-body.open { max-height: 500px; padding: 12px 16px; }
.collapsible-v3-inner { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.faq-item-v3 {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer; font-size: 13px;
  color: var(--text-secondary); transition: all .15s ease;
}
.faq-item-v3:last-child { border: none; }
.faq-item-v3:hover { color: var(--primary); padding-left: 4px; }