/* ═══════════════════════════════════════════════════════════════════════════
   Playbook Ganno — CSS · mismo sistema de diseño que CRM OBE
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

/* ─── Variables ─────────────────────────────────────────────────────────── */
:root {
  --font-family:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-base: 13px;
  --font-size-sm:   12px;
  --font-size-lg:   15px;
  --font-size-xl:   18px;

  --color-bg:             #f4f5f6;
  --color-surface:        #ffffff;
  --color-border:         #e2e8f0;
  --color-border-dark:    #d1d8dd;
  --color-text:           #1c1c1c;
  --color-text-secondary: #6c7680;
  --color-text-muted:     #98a1ab;

  --color-primary:      #2490ef;
  --color-primary-dark: #1a7fd4;
  --color-primary-bg:   #e8f3fd;

  --color-success:    #28a745;
  --color-success-bg: #e8f5e9;
  --color-warning:    #f8a100;
  --color-warning-bg: #fff8e1;
  --color-danger:     #e03636;
  --color-danger-bg:  #fdecea;
  --color-info:       #2490ef;
  --color-info-bg:    #e8f3fd;
  --color-muted:      #6c7680;
  --color-muted-bg:   #f1f3f4;
  --color-purple:     #6e57e0;
  --color-purple-bg:  #ede9fe;

  --sidebar-width: 220px;
  --topbar-height: 48px;
  --border-radius:    6px;
  --border-radius-sm: 4px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.1);
  --transition: .15s ease;
}

/* ─── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: var(--font-size-base); -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
input, select, textarea, button { font-family: inherit; font-size: inherit; }

/* ─── Layout ─────────────────────────────────────────────────────────────── */
.app-layout { display: flex; min-height: 100vh; }

/* ─── Sidebar ────────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
}
.sidebar-header {
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-logo {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
}
.sidebar-logo span {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: var(--color-text-muted);
}
.sidebar-nav { flex: 1; padding: 8px 0; }
.nav-section {
  padding: 12px 16px 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  font-size: 13px;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  text-decoration: none !important;
}
.nav-item:hover { background: var(--color-bg); color: var(--color-text); }
.nav-item.active { background: var(--color-primary-bg); color: var(--color-primary); font-weight: 500; }
.nav-item svg { width: 16px; height: 16px; flex-shrink: 0; opacity: .7; }
.nav-item.active svg { opacity: 1; }
.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  font-size: 12px;
  color: var(--color-text-muted);
}
.sidebar-user { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.sidebar-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sidebar-user-info { flex: 1; overflow: hidden; }
.sidebar-user-name { font-size: 12px; font-weight: 500; color: var(--color-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-role { font-size: 11px; color: var(--color-text-muted); }

/* ─── Main wrap ──────────────────────────────────────────────────────────── */
.main-wrap { flex: 1; margin-left: var(--sidebar-width); display: flex; flex-direction: column; min-height: 100vh; }

/* ─── Topbar ─────────────────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--color-text-muted); }
.breadcrumb .sep { color: var(--color-border-dark); }
.breadcrumb .current { color: var(--color-text); font-weight: 500; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

/* ─── Main content ───────────────────────────────────────────────────────── */
.main-content { flex: 1; padding: 24px; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.page-title { font-size: 18px; font-weight: 600; color: var(--color-text); }
.page-actions { display: flex; gap: 8px; }

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--border-radius); box-shadow: var(--shadow-sm); }
.card-header { padding: 14px 18px; border-bottom: 1px solid var(--color-border); display: flex; align-items: center; justify-content: space-between; }
.card-title { font-size: 13px; font-weight: 600; color: var(--color-text); }
.card-body { padding: 18px; }
.card-footer { padding: 12px 18px; border-top: 1px solid var(--color-border); background: var(--color-bg); border-radius: 0 0 var(--border-radius) var(--border-radius); }

/* ─── Stat cards ─────────────────────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--border-radius); padding: 16px 18px; box-shadow: var(--shadow-sm); }
.stat-label { font-size: 12px; color: var(--color-text-muted); font-weight: 500; margin-bottom: 6px; }
.stat-value { font-size: 26px; font-weight: 600; color: var(--color-text); line-height: 1; }
.stat-sub { font-size: 11px; color: var(--color-text-muted); margin-top: 4px; }
.stat-card.stat-success .stat-value { color: var(--color-success); }
.stat-card.stat-info    .stat-value { color: var(--color-primary); }
.stat-card.stat-danger  .stat-value { color: var(--color-danger); }
.stat-card.stat-warning .stat-value { color: var(--color-warning); }

/* ─── Tablas ─────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--border-radius); border: 1px solid var(--color-border); background: var(--color-surface); box-shadow: var(--shadow-sm); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th { background: var(--color-bg); padding: 9px 14px; text-align: left; font-weight: 500; font-size: 12px; color: var(--color-text-secondary); border-bottom: 1px solid var(--color-border); white-space: nowrap; }
tbody tr { border-bottom: 1px solid var(--color-border); transition: background var(--transition); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: #fafbfc; }
tbody td { padding: 9px 14px; color: var(--color-text); vertical-align: middle; }
tbody td.muted { color: var(--color-text-muted); }
.row-link { cursor: pointer; }

/* ─── Formularios ────────────────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group.full { grid-column: 1 / -1; }
label { font-size: 12px; font-weight: 500; color: var(--color-text-secondary); }
.form-control,
input[type="text"], input[type="email"], input[type="password"],
input[type="date"], input[type="number"], input[type="search"],
select, textarea {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--color-border-dark);
  border-radius: var(--border-radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 13px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  -webkit-appearance: none;
}
.form-control:focus, input:focus, select:focus, textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(36,144,239,.15);
}
textarea { resize: vertical; min-height: 80px; }
select { cursor: pointer; }
.form-hint { font-size: 11px; color: var(--color-text-muted); }
.form-section {
  font-size: 11px; font-weight: 600; color: var(--color-text-muted);
  text-transform: uppercase; letter-spacing: .5px;
  padding-bottom: 8px; border-bottom: 1px solid var(--color-border);
  margin-bottom: 16px; margin-top: 24px;
}
.form-section:first-child { margin-top: 0; }

/* ─── Botones ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: var(--border-radius-sm);
  font-size: 13px; font-weight: 500; cursor: pointer;
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  text-decoration: none !important; white-space: nowrap; line-height: 1;
}
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff; }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border-dark); }
.btn-secondary:hover { background: var(--color-bg); }
.btn-danger { background: var(--color-danger); color: #fff; border-color: var(--color-danger); }
.btn-danger:hover { background: #c92a2a; }
.btn-ghost { background: transparent; color: var(--color-primary); border-color: transparent; }
.btn-ghost:hover { background: var(--color-primary-bg); }
.btn-icon {
  padding: 6px; border-radius: var(--border-radius-sm);
  background: transparent; border: 1px solid transparent;
  cursor: pointer; color: var(--color-text-muted);
  transition: background var(--transition);
  display: inline-flex; align-items: center; justify-content: center;
}
.btn-icon:hover { background: var(--color-bg); color: var(--color-text); }
.btn svg { width: 14px; height: 14px; }
button:disabled { opacity: .5; cursor: not-allowed; }

/* ─── Badges ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: 12px;
  font-size: 11px; font-weight: 500; white-space: nowrap;
}
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: #92600a; }
.badge-danger  { background: var(--color-danger-bg);  color: var(--color-danger); }
.badge-info    { background: var(--color-info-bg);    color: var(--color-info); }
.badge-muted   { background: var(--color-muted-bg);   color: var(--color-muted); }
.badge-purple  { background: var(--color-purple-bg);  color: var(--color-purple); }

/* ─── Alertas ────────────────────────────────────────────────────────────── */
.alert { padding: 10px 14px; border-radius: var(--border-radius-sm); font-size: 13px; display: flex; align-items: flex-start; gap: 8px; margin-bottom: 16px; }
.alert-success { background: var(--color-success-bg); color: #1a6e29; border-left: 3px solid var(--color-success); }
.alert-danger  { background: var(--color-danger-bg);  color: #a61818; border-left: 3px solid var(--color-danger); }
.alert-warning { background: var(--color-warning-bg); color: #7a5200; border-left: 3px solid var(--color-warning); }
.alert-info    { background: var(--color-info-bg);    color: #1a5fa3; border-left: 3px solid var(--color-info); }

/* ─── Filtros ────────────────────────────────────────────────────────────── */
.filters {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--border-radius); padding: 14px 18px; margin-bottom: 16px;
  display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end;
}
.filter-group { display: flex; flex-direction: column; gap: 3px; min-width: 140px; }
.filter-group label { font-size: 11px; color: var(--color-text-muted); }
.filter-group input, .filter-group select { padding: 5px 8px; font-size: 12px; }
.filter-actions { display: flex; gap: 6px; margin-left: auto; align-self: flex-end; }

/* ─── Paginación ─────────────────────────────────────────────────────────── */
.pagination { display: flex; gap: 4px; padding: 14px 18px; justify-content: center; flex-wrap: wrap; }
.page-link {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 30px; height: 30px; padding: 0 8px;
  border-radius: var(--border-radius-sm); font-size: 12px;
  color: var(--color-text); border: 1px solid var(--color-border);
  background: var(--color-surface); cursor: pointer; text-decoration: none !important;
}
.page-link:hover { border-color: var(--color-primary); color: var(--color-primary); }
.page-link.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ─── Modales ────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.4);
  z-index: 200; display: flex; align-items: center; justify-content: center; padding: 20px;
}
.modal { background: var(--color-surface); border-radius: var(--border-radius); width: 100%; max-width: 520px; box-shadow: var(--shadow-md); }
.modal-lg { max-width: 720px; }
.modal-header { padding: 16px 20px; border-bottom: 1px solid var(--color-border); display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 14px; font-weight: 600; }
.modal-body  { padding: 20px; max-height: 70vh; overflow-y: auto; }
.modal-footer { padding: 14px 20px; border-top: 1px solid var(--color-border); display: flex; justify-content: flex-end; gap: 8px; }

/* ─── Progress bar ───────────────────────────────────────────────────────── */
.progress { height: 6px; background: var(--color-border); border-radius: 3px; overflow: hidden; margin: 6px 0; }
.progress-bar { height: 100%; background: var(--color-primary); border-radius: 3px; transition: width .4s ease; }
.progress-bar.success { background: var(--color-success); }
.progress-bar.warning { background: var(--color-warning); }
.progress-bar.danger  { background: var(--color-danger); }

/* ─── Spinner ────────────────────────────────────────────────────────────── */
.spinner { width: 20px; height: 20px; border: 2px solid var(--color-border); border-top-color: var(--color-primary); border-radius: 50%; animation: spin .7s linear infinite; display: inline-block; }
.spinner-sm { width: 14px; height: 14px; border-width: 2px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Login ──────────────────────────────────────────────────────────────── */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--color-bg); }
.login-box {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--border-radius); box-shadow: var(--shadow-md);
  padding: 40px 36px; width: 100%; max-width: 380px; text-align: center;
}
.login-logo { margin-bottom: 24px; }
.login-logo svg { margin: 0 auto 12px; }
.login-title { font-size: 20px; font-weight: 600; color: var(--color-text); margin-bottom: 4px; }
.login-sub { font-size: 13px; color: var(--color-text-muted); margin-bottom: 28px; }
.login-btn { width: 100%; justify-content: center; padding: 10px 20px; font-size: 14px; }

/* ─── Playbook — Módulos ─────────────────────────────────────────────────── */
.module-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.module-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--border-radius); padding: 20px; box-shadow: var(--shadow-sm);
  cursor: pointer; transition: border-color var(--transition), box-shadow var(--transition);
}
.module-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.module-icon {
  width: 40px; height: 40px; border-radius: var(--border-radius);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 12px; font-size: 20px;
}
.module-icon.blue   { background: var(--color-primary-bg); color: var(--color-primary); }
.module-icon.green  { background: var(--color-success-bg); color: var(--color-success); }
.module-icon.purple { background: var(--color-purple-bg); color: var(--color-purple); }
.module-icon.orange { background: var(--color-warning-bg); color: var(--color-warning); }
.module-icon svg    { display: block; }
.module-name { font-size: 14px; font-weight: 600; color: var(--color-text); margin-bottom: 4px; }
.module-desc { font-size: 12px; color: var(--color-text-muted); line-height: 1.5; }

/* ─── Playbook — Vista de módulo ─────────────────────────────────────────── */
.module-viewer { display: grid; grid-template-columns: 240px 1fr; gap: 20px; }
.module-toc {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--border-radius); padding: 16px; box-shadow: var(--shadow-sm);
  position: sticky; top: calc(var(--topbar-height) + 20px);
  max-height: calc(100vh - var(--topbar-height) - 40px); overflow-y: auto;
}
.toc-title { font-size: 11px; font-weight: 600; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 12px; }
.toc-item {
  display: block; padding: 5px 8px; font-size: 12px; color: var(--color-text-secondary);
  border-radius: var(--border-radius-sm); cursor: pointer;
  transition: background var(--transition), color var(--transition);
  text-decoration: none !important; margin-bottom: 2px;
}
.toc-item:hover { background: var(--color-bg); color: var(--color-text); }
.toc-item.active { background: var(--color-primary-bg); color: var(--color-primary); font-weight: 500; }
.module-content { min-width: 0; }
.module-section { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--border-radius); padding: 24px; margin-bottom: 16px; box-shadow: var(--shadow-sm); }
.module-section-title { font-size: 16px; font-weight: 600; color: var(--color-text); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--color-border); }
.module-section-subtitle { font-size: 13px; font-weight: 600; color: var(--color-text); margin: 16px 0 8px; }

/* ─── Persona cards ──────────────────────────────────────────────────────── */
.persona-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.persona-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--border-radius); overflow: hidden; box-shadow: var(--shadow-sm);
}
.persona-header {
  padding: 16px; border-bottom: 1px solid var(--color-border);
  background: linear-gradient(135deg, var(--color-primary-bg), var(--color-surface));
}
.persona-name { font-size: 14px; font-weight: 600; color: var(--color-text); margin-bottom: 2px; }
.persona-role { font-size: 12px; color: var(--color-text-muted); }
.persona-body { padding: 14px; }
.persona-attr { display: flex; gap: 6px; margin-bottom: 8px; font-size: 12px; }
.persona-attr-label { color: var(--color-text-muted); min-width: 80px; flex-shrink: 0; }
.persona-attr-value { color: var(--color-text); }

/* ─── Funnel stages ──────────────────────────────────────────────────────── */
.funnel-stage {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--border-radius); padding: 16px; margin-bottom: 10px;
  box-shadow: var(--shadow-sm);
}
.funnel-stage-header { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.funnel-stage-num {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--color-primary-bg); color: var(--color-primary);
  font-weight: 600; font-size: 13px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.funnel-stage-name { font-size: 14px; font-weight: 600; color: var(--color-text); }
.funnel-tag { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 12px; font-size: 11px; font-weight: 500; background: var(--color-muted-bg); color: var(--color-muted); margin: 2px; }

/* ─── AI chat ────────────────────────────────────────────────────────────── */
.ai-chat-wrap { display: flex; flex-direction: column; height: calc(100vh - var(--topbar-height) - 48px); }
.ai-messages { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.ai-msg { max-width: 75%; padding: 12px 16px; border-radius: var(--border-radius); font-size: 13px; line-height: 1.6; }
.ai-msg.user { background: var(--color-primary); color: #fff; align-self: flex-end; border-radius: var(--border-radius) var(--border-radius) 2px var(--border-radius); }
.ai-msg.assistant { background: var(--color-surface); border: 1px solid var(--color-border); color: var(--color-text); align-self: flex-start; border-radius: var(--border-radius) var(--border-radius) var(--border-radius) 2px; box-shadow: var(--shadow-sm); }
.ai-msg.assistant p { margin-bottom: 8px; }
.ai-msg.assistant p:last-child { margin-bottom: 0; }
.ai-msg.assistant ul { padding-left: 16px; list-style: disc; }
.ai-msg.assistant li { margin-bottom: 4px; }
.ai-input-area {
  padding: 16px 24px; background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: flex; gap: 10px; align-items: flex-end;
}
.ai-input { flex: 1; min-height: 44px; max-height: 120px; resize: none; padding: 10px 14px; }
.ai-typing { display: flex; gap: 4px; padding: 12px 16px; }
.ai-typing span { width: 6px; height: 6px; border-radius: 50%; background: var(--color-text-muted); animation: bounce .8s ease-in-out infinite; }
.ai-typing span:nth-child(2) { animation-delay: .15s; }
.ai-typing span:nth-child(3) { animation-delay: .3s; }
@keyframes bounce { 0%,80%,100% { transform: translateY(0); } 40% { transform: translateY(-6px); } }

/* ─── Clientes ───────────────────────────────────────────────────────────── */
.client-phase {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--color-text-secondary);
}
.phase-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.phase-dot.on_track  { background: var(--color-success); }
.phase-dot.at_risk   { background: var(--color-warning); }
.phase-dot.blocked   { background: var(--color-danger); }
.phase-dot.completed { background: var(--color-muted); }

/* ─── Empty state ────────────────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 60px 24px; color: var(--color-text-muted); }
.empty-state svg { width: 48px; height: 48px; margin: 0 auto 16px; opacity: .3; }
.empty-state h3 { font-size: 15px; font-weight: 600; color: var(--color-text-secondary); margin-bottom: 6px; }
.empty-state p { font-size: 13px; }

/* ─── Utilities ──────────────────────────────────────────────────────────── */
.text-muted     { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-sm  { font-size: var(--font-size-sm); }
.text-xs  { font-size: 11px; }
.text-center { text-align: center; }
.text-bold { font-weight: 600; }
.mt-1 { margin-top: 6px; }   .mt-2 { margin-top: 12px; }  .mt-3 { margin-top: 18px; }  .mt-4 { margin-top: 24px; }
.mb-1 { margin-bottom: 6px; } .mb-2 { margin-bottom: 12px; } .mb-3 { margin-bottom: 18px; } .mb-4 { margin-bottom: 24px; }
.flex { display: flex; } .flex-1 { flex: 1; } .items-center { align-items: center; }
.justify-between { justify-content: space-between; } .gap-2 { gap: 8px; } .gap-3 { gap: 12px; }
.w-full { width: 100%; } .hidden { display: none; }
.ellipsis { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 200px; }
.divider { border: none; border-top: 1px solid var(--color-border); margin: 20px 0; }

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s ease; }
  .sidebar.open { transform: translateX(0); }
  .main-wrap { margin-left: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .module-viewer { grid-template-columns: 1fr; }
  .module-toc { position: static; max-height: none; display: none; }
  .filters { flex-direction: column; }
  .filter-actions { width: 100%; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .mobile-menu-btn { display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border: none; background: transparent; cursor: pointer; color: var(--color-text); }
}
@media (min-width: 769px) { .mobile-menu-btn { display: none; } }