/* ============================================================
   TaskTracker — главный CSS  |  PC-only modern design
   ============================================================ */

:root {
  --sidebar-w:       260px;
  --sidebar-bg:      #0f172a;
  --sidebar-hover:   rgba(255,255,255,.07);
  --sidebar-active:  rgba(96,165,250,.15);
  --sidebar-text:    #94a3b8;
  --sidebar-active-text: #60a5fa;
  --topbar-h:        64px;
  --primary:         #3b82f6;
  --transition:      .18s ease;
  --card-radius:     .75rem;
  --border:          #e2e8f0;
  --bg:              #f1f5f9;
  --text:            #1e293b;
  --text-muted:      #64748b;
}

/* ── Сброс / общее ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ── Обёртка ────────────────────────────────────────────────── */
#wrapper { min-height: 100vh; display: flex; }

/* ── Боковая панель ─────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--sidebar-bg);
  position: fixed;
  top: 0; left: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  transition: width var(--transition);
  overflow: hidden;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: .875rem;
  padding: 1.375rem 1.25rem;
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  border-bottom: 1px solid rgba(255,255,255,.07);
  white-space: nowrap;
  letter-spacing: -.01em;
}
.sidebar-brand i {
  font-size: 1.4rem;
  color: var(--primary);
  flex-shrink: 0;
}

.sidebar-nav {
  padding: .75rem 0;
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-section-label {
  padding: .5rem 1.25rem .25rem;
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: rgba(255,255,255,.25);
  white-space: nowrap;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: .875rem;
  padding: .7rem 1.25rem;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: .9rem;
  font-weight: 450;
  white-space: nowrap;
  border-radius: 0;
  transition: background var(--transition), color var(--transition);
  position: relative;
}
.sidebar-link i {
  font-size: 1.05rem;
  min-width: 1.35rem;
  text-align: center;
  flex-shrink: 0;
}
.sidebar-link:hover {
  background: var(--sidebar-hover);
  color: #e2e8f0;
}
.sidebar-link.active {
  background: var(--sidebar-active);
  color: var(--sidebar-active-text);
  font-weight: 600;
}
.sidebar-link.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}
.sidebar-link.text-danger-soft { color: #f87171; }
.sidebar-link.text-danger-soft:hover { background: rgba(248,113,113,.1); color: #ef4444; }

.sidebar-divider {
  border-color: rgba(255,255,255,.07);
  margin: .5rem 0;
}

/* Свёрнутый сайдбар */
.sidebar-collapsed .sidebar { width: 56px; }
.sidebar-collapsed .sidebar .sidebar-brand span,
.sidebar-collapsed .sidebar .sidebar-link span,
.sidebar-collapsed .sidebar .sidebar-section-label,
.sidebar-collapsed .sidebar .sidebar-link .badge { display: none; }
.sidebar-collapsed #page-content-wrapper { margin-left: 56px; }

/* ── Основной контент ───────────────────────────────────────── */
#page-content-wrapper {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition);
  flex: 1;
}

/* ── Топ-бар ────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 2rem;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}
.topbar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.btn-ghost {
  background: transparent;
  border: none;
  color: #64748b;
  padding: .375rem .5rem;
  border-radius: .5rem;
  font-size: .95rem;
}
.btn-ghost:hover { background: #f1f5f9; color: var(--text); }

/* ── Контент страницы ───────────────────────────────────────── */
main.page-content {
  padding: 2rem 2.5rem;
  flex: 1;
}

/* ── Аватар ─────────────────────────────────────────────────── */
.avatar-xs {
  width: 32px; height: 32px;
  font-size: .65rem;
  flex-shrink: 0;
}
.avatar-sm {
  width: 40px; height: 40px;
  font-size: .8rem;
}
.avatar-lg {
  width: 80px; height: 80px;
  font-size: 1.5rem;
}
.avatar-initials {
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Уведомления (дропдаун) ─────────────────────────────────── */
.notif-badge {
  position: absolute;
  top: 2px; right: 2px;
  min-width: 18px; height: 18px;
  padding: 0 4px;
  font-size: .65rem;
  font-weight: 700;
  background: #ef4444;
  color: #fff;
  border-radius: 9px;
  line-height: 18px;
  text-align: center;
}
.notif-dropdown { width: 360px; }
.notif-header   { border-bottom: 1px solid var(--border); }
.notif-footer   { border-top: 1px solid var(--border); }
.notif-list     { max-height: 340px; overflow-y: auto; }
.notif-item {
  padding: .875rem 1.25rem;
  border-bottom: 1px solid #f1f5f9;
  font-size: .85rem;
  cursor: pointer;
  transition: background var(--transition);
}
.notif-item:hover { background: #f8fafc; }
.notif-item.unread {
  background: #eff6ff;
  border-left: 3px solid var(--primary);
}
.notif-icon-circle {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.notif-unread { background: #eff6ff; }

/* ── Карточки статистики ────────────────────────────────────── */
.stat-card {
  border-radius: var(--card-radius);
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
  transition: box-shadow var(--transition);
}
.stat-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.08); }
.stat-card__icon {
  font-size: 1.75rem;
  width: 56px; height: 56px;
  border-radius: .75rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.stat-card__value {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}
.stat-card__label {
  font-size: .85rem;
  color: var(--text-muted);
  margin-top: .2rem;
}

.stat-card--blue   .stat-card__icon { background: #dbeafe; color: #2563eb; }
.stat-card--green  .stat-card__icon { background: #dcfce7; color: #16a34a; }
.stat-card--yellow .stat-card__icon { background: #fef3c7; color: #d97706; }
.stat-card--gray   .stat-card__icon { background: #f1f5f9; color: #475569; }
.stat-card--purple .stat-card__icon { background: #ede9fe; color: #7c3aed; }

/* ── Bootstrap card переопределения ────────────────────────── */
.card {
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.card-header {
  padding: 1rem 1.5rem;
  font-size: .95rem;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.card-body { padding: 1.5rem; }
.card-footer {
  padding: .875rem 1.5rem;
  background: #fafbfc;
  border-top: 1px solid var(--border);
  font-size: .875rem;
}

/* ── Таблицы ────────────────────────────────────────────────── */
.table th {
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  padding: .875rem 1.25rem;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
.table td {
  padding: .9rem 1.25rem;
  vertical-align: middle;
  font-size: .9rem;
  border-bottom: 1px solid #f1f5f9;
}
.table tbody tr:last-child td { border-bottom: none; }
.table-hover tbody tr:hover { background: #f8fafc; }

/* ── Kanban ─────────────────────────────────────────────────── */
.kanban-board { overflow-x: auto; padding-bottom: 1rem; }
.kanban-column { min-width: 300px; max-width: 340px; flex: 1 1 300px; }
.kanban-col-body { min-height: 480px; }

.task-card {
  border: 1px solid var(--border) !important;
  border-radius: .625rem !important;
  transition: box-shadow var(--transition), transform var(--transition);
  cursor: grab;
}
.task-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.1) !important; }
.task-card:active { cursor: grabbing; }
.task-card .card-body { padding: 1rem 1.125rem; }

/* ── Карточки проектов ──────────────────────────────────────── */
.project-card {
  transition: transform var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,.09) !important;
}

/* ── Страница входа ─────────────────────────────────────────── */
.login-page {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
}
.login-card {
  width: 100%;
  max-width: 440px;
  border-radius: 1rem;
  border: none;
}
.login-logo {
  width: 68px; height: 68px;
  border-radius: 1rem;
  background: var(--primary);
  color: #fff;
  font-size: 2.2rem;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto;
}

/* ── Форм-контрол увеличенный ───────────────────────────────── */
.form-control,
.form-select {
  font-size: .95rem;
  padding: .55rem .875rem;
  border-color: var(--border);
  border-radius: .5rem;
}
.form-control:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}
.form-label {
  font-size: .875rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: .4rem;
}

/* ── Кнопки ─────────────────────────────────────────────────── */
.btn {
  font-size: .9rem;
  font-weight: 500;
  padding: .5rem 1.125rem;
  border-radius: .5rem;
}
.btn-sm {
  font-size: .825rem;
  padding: .35rem .75rem;
  border-radius: .4rem;
}
.btn-lg {
  font-size: 1rem;
  padding: .7rem 1.5rem;
}

/* ── Бейджи ─────────────────────────────────────────────────── */
.badge {
  font-size: .75rem;
  font-weight: 600;
  padding: .35em .65em;
}

/* ── Утилиты ────────────────────────────────────────────────── */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.75rem;
}
.page-header-title { font-size: 1.35rem; font-weight: 700; margin: 0; }
.page-header-sub { font-size: .875rem; color: var(--text-muted); margin-top: .2rem; }