/* ============================================================
   Freelance OS — Main Stylesheet
   ============================================================ */

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #16a34a;
  --success-light: #f0fdf4;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --info: #0891b2;
  --info-light: #ecfeff;

  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  --sidebar-width: 240px;
  --sidebar-bg: #0f172a;
  --sidebar-hover: rgba(255,255,255,0.08);
  --sidebar-active: rgba(37,99,235,0.3);
  --sidebar-text: #94a3b8;
  --sidebar-text-active: #f1f5f9;

  --header-height: 60px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.06);
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body { font-family: var(--font); color: var(--gray-800); background: var(--gray-50); line-height: 1.5; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }
img { max-width: 100%; }

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

/* ── Sidebar ────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.25s ease;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}

.brand-icon { display: flex; align-items: center; }
.brand-name { letter-spacing: -0.01em; }

.sidebar-toggle {
  color: var(--sidebar-text);
  padding: 4px;
  border-radius: 6px;
  transition: color 0.15s;
  display: none;
}
.sidebar-toggle:hover { color: #fff; }

.sidebar-nav { padding: 12px 0; flex: 1; }

.nav-section { margin-bottom: 8px; }

.nav-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--sidebar-text);
  opacity: 0.5;
  padding: 8px 16px 4px;
  display: block;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  color: var(--sidebar-text);
  border-radius: 0;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s;
  position: relative;
}

.nav-item:hover { background: var(--sidebar-hover); color: var(--sidebar-text-active); }

.nav-item.active {
  background: var(--sidebar-active);
  color: #93c5fd;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}

.nav-icon { width: 18px; height: 18px; flex-shrink: 0; }

.nav-bottom { margin-top: auto; border-top: 1px solid rgba(255,255,255,0.06); padding-top: 8px; }

.nav-logout:hover { color: #fca5a5; background: rgba(220,38,38,0.12); }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}

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

/* ── Header ─────────────────────────────────────────────────── */
.top-header {
  height: var(--header-height);
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-left { display: flex; align-items: center; gap: 12px; }
.header-right { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.mobile-menu-btn {
  display: none;
  color: var(--gray-600);
  padding: 6px;
  border-radius: 6px;
  align-items: center;
  justify-content: center;
}
.mobile-menu-btn:hover { background: var(--gray-100); }

.header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  color: var(--gray-500);
  transition: background 0.15s, color 0.15s;
}
.header-btn:hover { background: var(--gray-100); color: var(--gray-800); }

.user-menu { position: relative; }
.user-menu-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
}
.user-menu-btn:hover { background: var(--gray-100); }

.header-menu-btn {
  display: none;
  color: var(--gray-600);
  padding: 6px;
  border-radius: 6px;
}
.header-menu-btn:hover { background: var(--gray-100); }

.header-search {
  flex: 1;
  max-width: 380px;
}

.header-search input {
  width: 100%;
  padding: 7px 12px 7px 36px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--gray-800);
  transition: border-color 0.15s;
}
.header-search input:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
}

.header-search-icon {
  position: relative;
}
.header-search-icon svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
}

.header-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.header-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
}
.header-user:hover { background: var(--gray-100); }

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.user-info { display: flex; flex-direction: column; }
.user-name { font-size: 0.8rem; font-weight: 600; line-height: 1.2; }
.user-role { font-size: 0.7rem; color: var(--gray-500); }

/* ── User Dropdown ──────────────────────────────────────────── */
.header-user-wrap { position: relative; }
.user-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 220px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  overflow: hidden;
}
.user-dropdown.open { display: block; }
.dropdown-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--gray-100);
  background: var(--gray-50);
}
.dropdown-name { font-size: 0.875rem; font-weight: 600; color: var(--gray-800); }
.dropdown-email { font-size: 0.75rem; color: var(--gray-500); margin-top: 2px; }
.dropdown-items { padding: 6px 0; }
.dropdown-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  font-size: 0.875rem;
  color: var(--gray-700);
  transition: background 0.12s;
}
.dropdown-item:hover { background: var(--gray-50); color: var(--gray-900); }
.dropdown-item-danger { color: var(--danger); }
.dropdown-item-danger:hover { background: var(--danger-light); color: var(--danger); }

/* ── Page Content ───────────────────────────────────────────── */
.page-content { flex: 1; padding: 24px; max-width: 1400px; width: 100%; margin: 0 auto; }

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}

.page-title { font-size: 1.5rem; font-weight: 700; color: var(--gray-900); line-height: 1.2; }
.page-subtitle { font-size: 0.875rem; color: var(--gray-500); margin-top: 2px; }

/* ── Breadcrumb ─────────────────────────────────────────────── */
.breadcrumb { display: flex; align-items: center; gap: 6px; margin-bottom: 16px; font-size: 0.8rem; color: var(--gray-500); }
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--gray-300); }

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  background: #fff;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-100);
}

.card-title { font-size: 0.95rem; font-weight: 600; color: var(--gray-800); }

.card-body { padding: 20px; }
.card-body.p-0 { padding: 0; }

.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
  font-size: 0.85rem;
}

/* ── Stats ──────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.stats-grid-sm {
  grid-template-columns: repeat(3, 1fr);
}

.stat-card {
  background: #fff;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--gray-200);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-icon svg { width: 22px; height: 22px; }

.stat-primary .stat-icon { background: var(--primary-light); color: var(--primary); }
.stat-warning .stat-icon { background: var(--warning-light); color: var(--warning); }
.stat-danger  .stat-icon { background: var(--danger-light);  color: var(--danger); }
.stat-success .stat-icon { background: var(--success-light); color: var(--success); }

.stat-body { flex: 1; min-width: 0; }
.stat-value { font-size: 1.4rem; font-weight: 700; color: var(--gray-900); line-height: 1; }
.stat-label { font-size: 0.8rem; color: var(--gray-500); margin-top: 4px; }
.stat-trend { font-size: 0.75rem; margin-top: 6px; }
.stat-trend.up { color: var(--success); }
.stat-trend.down { color: var(--danger); }

.stat-card-sm {
  background: #fff;
  border-radius: var(--border-radius);
  border: 1px solid var(--gray-200);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
}
.stat-sm-value { font-size: 1.2rem; font-weight: 700; color: var(--gray-900); }
.stat-sm-label { font-size: 0.78rem; color: var(--gray-500); margin-top: 2px; }

/* ── Dashboard Grid ─────────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ── Tables ─────────────────────────────────────────────────── */
.table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }

.table th {
  padding: 10px 16px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}

.table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--gray-100);
  vertical-align: middle;
}

.table tbody tr:last-child td { border-bottom: none; }

.table-hover tbody tr:hover { background: var(--gray-50); }

.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--gray-500); }
.text-sm { font-size: 0.8rem; }
.font-medium { font-weight: 500; }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s;
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
}
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

.btn-success {
  background: var(--success);
  color: #fff;
  border: 1px solid var(--success);
}
.btn-success:hover { background: #15803d; }

.btn-danger {
  background: var(--danger);
  color: #fff;
  border: 1px solid var(--danger);
}
.btn-danger:hover { background: #b91c1c; }

.btn-warning {
  background: var(--warning);
  color: #fff;
  border: 1px solid var(--warning);
}
.btn-warning:hover { background: #b45309; }

.btn-outline {
  background: #fff;
  color: var(--gray-700);
  border: 1px solid var(--gray-300);
}
.btn-outline:hover { background: var(--gray-50); border-color: var(--gray-400); }

.btn-ghost {
  background: transparent;
  color: var(--gray-600);
  border: 1px solid transparent;
}
.btn-ghost:hover { background: var(--gray-100); color: var(--gray-800); }

.btn-sm { padding: 5px 12px; font-size: 0.8rem; border-radius: 6px; }
.btn-lg { padding: 11px 24px; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

.btn-icon {
  padding: 7px;
  border-radius: 6px;
  color: var(--gray-600);
  border: 1px solid var(--gray-200);
}
.btn-icon:hover { background: var(--gray-100); }

/* ── Forms ──────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }

.form-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-label-link { font-weight: 400; color: var(--primary); font-size: 0.8rem; }
.form-label-link:hover { text-decoration: underline; }

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
  font-size: 0.875rem;
  color: var(--gray-800);
  background: #fff;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.form-textarea { resize: vertical; min-height: 100px; }

.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 32px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.form-group-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.form-hint { font-size: 0.78rem; color: var(--gray-500); margin-top: 4px; }

.form-section { margin-bottom: 28px; }
.form-section-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gray-200);
}

/* Password input */
.input-password-wrapper { position: relative; }
.input-password-wrapper .form-input { padding-right: 40px; }
.password-toggle {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
  padding: 2px;
}
.password-toggle:hover { color: var(--gray-600); }

/* Checkbox */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--gray-700);
  user-select: none;
}

.checkbox-label input[type="checkbox"] { display: none; }

.checkbox-custom {
  width: 18px;
  height: 18px;
  border: 2px solid var(--gray-300);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  flex-shrink: 0;
}

.checkbox-label input[type="checkbox"]:checked ~ .checkbox-custom {
  background: var(--primary);
  border-color: var(--primary);
}
.checkbox-label input[type="checkbox"]:checked ~ .checkbox-custom::after {
  content: '';
  width: 5px;
  height: 9px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translateY(-1px);
  display: block;
}

/* Radio */
.radio-group { display: flex; gap: 16px; flex-wrap: wrap; }
.radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--gray-700);
  user-select: none;
}
.radio-label input[type="radio"] { accent-color: var(--primary); }

/* ── Filter Bar ─────────────────────────────────────────────── */
.filter-bar { margin-bottom: 20px; }
.filter-form {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-search { max-width: 280px; }
.filter-select { max-width: 180px; }

/* ── Badges ─────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.badge-draft     { background: var(--gray-100); color: var(--gray-600); }
.badge-sent      { background: #eff6ff; color: #1d4ed8; }
.badge-seen      { background: #f0f9ff; color: #0369a1; }
.badge-pending   { background: var(--warning-light); color: var(--warning); }
.badge-active    { background: var(--success-light); color: var(--success); }
.badge-paid      { background: var(--success-light); color: var(--success); }
.badge-partial   { background: #fef9c3; color: #a16207; }
.badge-late      { background: var(--danger-light); color: var(--danger); }
.badge-overdue   { background: var(--danger-light); color: var(--danger); }
.badge-cancelled { background: var(--gray-100); color: var(--gray-500); }
.badge-done      { background: var(--success-light); color: var(--success); }
.badge-refused   { background: var(--danger-light); color: var(--danger); }
.badge-expired   { background: var(--gray-100); color: var(--gray-500); }
.badge-prospect  { background: #f5f3ff; color: #7c3aed; }
.badge-inactive  { background: var(--gray-100); color: var(--gray-500); }
.badge-archived  { background: var(--gray-100); color: var(--gray-400); }
.badge-blocked   { background: var(--danger-light); color: var(--danger); }
.badge-accepted  { background: var(--success-light); color: var(--success); }
.badge-in_progress { background: #eff6ff; color: var(--primary); }
.badge-todo      { background: var(--gray-100); color: var(--gray-600); }

.badge-priority-low      { background: var(--gray-100); color: var(--gray-500); }
.badge-priority-normal   { background: #eff6ff; color: var(--primary); }
.badge-priority-high     { background: var(--warning-light); color: var(--warning); }
.badge-priority-critical { background: var(--danger-light); color: var(--danger); }

/* ── Row Actions ────────────────────────────────────────────── */
.row-actions { display: flex; align-items: center; gap: 4px; justify-content: flex-end; }

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  color: var(--gray-500);
  transition: all 0.15s;
}
.action-btn:hover { background: var(--gray-100); color: var(--gray-800); }
.action-btn-danger:hover { background: var(--danger-light); color: var(--danger); }

.inline-form { display: inline; }

/* ── Flash Messages ─────────────────────────────────────────── */
.flash {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  animation: slideDown 0.2s ease;
}
@keyframes slideDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

.flash-success { background: var(--success-light); color: var(--success); border: 1px solid #bbf7d0; }
.flash-error   { background: var(--danger-light);  color: var(--danger);  border: 1px solid #fecaca; }
.flash-warning { background: var(--warning-light); color: var(--warning); border: 1px solid #fde68a; }
.flash-info    { background: var(--info-light);    color: var(--info);    border: 1px solid #a5f3fc; }

.flash-content { flex: 1; }
.flash-close {
  background: none;
  border: none;
  cursor: pointer;
  opacity: 0.6;
  padding: 0;
  margin-left: auto;
  flex-shrink: 0;
  line-height: 1;
}
.flash-close:hover { opacity: 1; }

/* Auth flash */
.auth-flash { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 0.875rem; font-weight: 500; }
.auth-flash-success { background: var(--success-light); color: var(--success); border: 1px solid #bbf7d0; }
.auth-flash-error   { background: var(--danger-light);  color: var(--danger);  border: 1px solid #fecaca; }

/* ── Empty State ────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  text-align: center;
  color: var(--gray-400);
}

.empty-state svg { margin-bottom: 16px; color: var(--gray-300); }
.empty-state h3 { font-size: 1.1rem; font-weight: 600; color: var(--gray-700); margin-bottom: 8px; }
.empty-state p { font-size: 0.875rem; color: var(--gray-500); margin-bottom: 20px; }

.empty-state-sm { padding: 32px 24px; text-align: center; color: var(--gray-400); font-size: 0.875rem; }

/* ── Pagination ─────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--gray-100);
  font-size: 0.8rem;
  color: var(--gray-500);
}

.pagination-pages { display: flex; gap: 4px; }

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray-600);
  border: 1px solid var(--gray-200);
  background: #fff;
  transition: all 0.15s;
}
.page-btn:hover { background: var(--gray-50); border-color: var(--gray-300); }
.page-btn.active,
.page-btn-active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.page-ellipsis { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; font-size: 0.8rem; color: var(--gray-400); }
.pagination-info { font-size: 0.8rem; color: var(--gray-500); }

/* ── Auth Layout ────────────────────────────────────────────── */
.auth-body {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 440px;
}

.auth-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 32px;
  text-decoration: none;
}

.auth-card {
  background: #fff;
  border-radius: var(--border-radius-lg);
  padding: 36px;
  width: 100%;
  box-shadow: var(--shadow-lg);
}

.auth-card-wide { max-width: 520px; }
.auth-wrapper:has(.auth-card-wide) { max-width: 520px; }
.auth-title { font-size: 1.5rem; font-weight: 700; color: var(--gray-900); margin-bottom: 6px; }
.auth-subtitle { font-size: 0.875rem; color: var(--gray-500); margin-bottom: 28px; }
.auth-form { display: flex; flex-direction: column; gap: 0; }
.auth-footer-text { margin-top: 24px; text-align: center; font-size: 0.875rem; color: var(--gray-500); }
.auth-link { color: var(--primary); font-weight: 500; }
.auth-link:hover { text-decoration: underline; }

.auth-demo {
  margin-top: 20px;
  padding: 12px 16px;
  background: var(--gray-50);
  border-radius: 8px;
  font-size: 0.8rem;
  color: var(--gray-600);
}
.demo-label { font-weight: 600; margin-bottom: 4px; }
.auth-demo code { background: var(--gray-200); padding: 2px 6px; border-radius: 4px; font-size: 0.8rem; }

/* ── Client avatar ──────────────────────────────────────────── */
.client-name-link {
  display: flex;
  align-items: center;
  gap: 10px;
  color: inherit;
}
.client-name-link:hover .font-medium { color: var(--primary); }

.client-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Links ──────────────────────────────────────────────────── */
.link { color: var(--primary); }
.link:hover { text-decoration: underline; }
.link-muted { color: var(--gray-500); font-size: 0.85rem; }
.link-muted:hover { color: var(--primary); }

/* ── Task List ──────────────────────────────────────────────── */
.task-list { display: flex; flex-direction: column; gap: 8px; }

.task-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-100);
}
.task-item:last-child { border-bottom: none; padding-bottom: 0; }

.task-check-form { flex-shrink: 0; }

.task-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--gray-300);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  flex-shrink: 0;
  background: #fff;
  margin-top: 1px;
}
.task-check:hover { border-color: var(--primary); }
.task-check-done { background: var(--success); border-color: var(--success); }

.task-content { flex: 1; min-width: 0; }
.task-title { font-size: 0.875rem; font-weight: 500; color: var(--gray-800); }
.task-meta { display: flex; gap: 8px; margin-top: 2px; font-size: 0.78rem; color: var(--gray-500); flex-wrap: wrap; }

/* Tasks full page */
.tasks-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.task-full-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  border-radius: 8px;
  border: 1px solid var(--gray-200);
  background: #fff;
  margin-bottom: 8px;
  transition: box-shadow 0.15s;
}
.task-full-item:hover { box-shadow: var(--shadow-sm); }

/* ── Activity Log ───────────────────────────────────────────── */
.activity-list { display: flex; flex-direction: column; gap: 0; }

.activity-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-100);
}
.activity-item:last-child { border-bottom: none; }

.activity-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gray-300);
  flex-shrink: 0;
  margin-top: 6px;
}
.activity-dot-created  { background: var(--success); }
.activity-dot-updated  { background: var(--primary); }
.activity-dot-paid     { background: var(--success); }
.activity-dot-sent     { background: var(--info); }
.activity-dot-login    { background: var(--gray-400); }
.activity-dot-deleted  { background: var(--danger); }
.activity-dot-cancelled { background: var(--danger); }

.activity-content { flex: 1; min-width: 0; }
.activity-desc { font-size: 0.85rem; color: var(--gray-700); }
.activity-meta { font-size: 0.78rem; color: var(--gray-400); margin-top: 2px; }

/* ── Quick Actions ──────────────────────────────────────────── */
.quick-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.quick-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 18px 12px;
  border-radius: 10px;
  border: 1px solid var(--gray-200);
  background: #fff;
  color: var(--gray-600);
  font-size: 0.8rem;
  font-weight: 500;
  text-align: center;
  transition: all 0.15s;
}
.quick-action svg { width: 22px; height: 22px; color: var(--primary); }
.quick-action:hover { border-color: var(--primary); background: var(--primary-light); color: var(--primary); }

/* ── Detail Page ────────────────────────────────────────────── */
.detail-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; }
.detail-grid-full { grid-template-columns: 1fr; }

.detail-section { margin-bottom: 24px; }
.detail-section-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.detail-row {
  display: flex;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-100);
  font-size: 0.875rem;
}
.detail-row:last-child { border-bottom: none; }
.detail-label { width: 160px; flex-shrink: 0; color: var(--gray-500); font-weight: 500; }
.detail-value { flex: 1; color: var(--gray-800); }

.info-box {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
}

/* ── Line Items ─────────────────────────────────────────────── */
.line-items { margin-bottom: 20px; }

.line-item-row {
  display: grid;
  grid-template-columns: 1fr 100px 110px 80px 100px 36px;
  gap: 8px;
  align-items: start;
  margin-bottom: 8px;
  padding: 10px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  background: #fff;
}

.line-item-header {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--gray-500);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
  padding: 0 2px;
}

.btn-add-line {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1px dashed var(--gray-300);
  border-radius: 8px;
  color: var(--gray-600);
  font-size: 0.875rem;
  background: #fff;
  transition: all 0.15s;
}
.btn-add-line:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

.btn-remove-line {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 6px;
  color: var(--gray-400);
  transition: all 0.15s;
  background: none;
  border: none;
  flex-shrink: 0;
  margin-top: 22px;
}
.btn-remove-line:hover { background: var(--danger-light); color: var(--danger); }

.totals-box {
  max-width: 320px;
  margin-left: auto;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  padding: 16px;
}

.totals-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.875rem;
  color: var(--gray-600);
}
.totals-row.total-final {
  border-top: 2px solid var(--gray-200);
  margin-top: 6px;
  padding-top: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-900);
}

/* ── Tabs ───────────────────────────────────────────────────── */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--gray-200); margin-bottom: 24px; }

.tab-item {
  padding: 10px 18px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-500);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: -1px;
}
.tab-item:hover { color: var(--gray-700); }
.tab-item.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Modal ──────────────────────────────────────────────────── */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-backdrop.open { display: flex; }

.modal {
  background: #fff;
  border-radius: var(--border-radius-lg);
  padding: 28px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.2s ease;
}
@keyframes modalIn { from { opacity: 0; transform: scale(0.96) translateY(-8px); } to { opacity: 1; transform: none; } }

.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal-title { font-size: 1.1rem; font-weight: 700; color: var(--gray-900); }
.modal-close { color: var(--gray-400); padding: 4px; border-radius: 6px; transition: all 0.15s; }
.modal-close:hover { background: var(--gray-100); color: var(--gray-700); }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }

/* ── Note cards ─────────────────────────────────────────────── */
.notes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }

.note-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--border-radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.15s;
}
.note-card:hover { box-shadow: var(--shadow-md); }
.note-title { font-size: 0.9rem; font-weight: 600; color: var(--gray-800); margin-bottom: 8px; }
.note-content { font-size: 0.85rem; color: var(--gray-600); line-height: 1.6; white-space: pre-line; }
.note-meta { display: flex; justify-content: space-between; margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--gray-100); font-size: 0.75rem; color: var(--gray-400); }

/* ── File list ──────────────────────────────────────────────── */
.file-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ── Settings ───────────────────────────────────────────────── */
.settings-layout { display: grid; grid-template-columns: 220px 1fr; gap: 28px; }
.settings-nav { display: flex; flex-direction: column; gap: 2px; }
.settings-nav-item {
  padding: 9px 14px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  cursor: pointer;
  transition: all 0.15s;
}
.settings-nav-item:hover { background: var(--gray-100); color: var(--gray-800); }
.settings-nav-item.active { background: var(--primary-light); color: var(--primary); }

/* ── PDF / Print ────────────────────────────────────────────── */
@media print {
  .sidebar, .top-header, .no-print { display: none !important; }
  .main-content { margin-left: 0 !important; }
  .page-content { padding: 0 !important; }
  .card { border: none !important; box-shadow: none !important; }
}

/* ── Utilities ──────────────────────────────────────────────── */
.d-flex { display: flex; }
.d-none { display: none; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.ml-auto { margin-left: auto; }
.w-full { width: 100%; }
.text-sm { font-size: 0.8rem; }
.font-bold { font-weight: 700; }
.text-gray { color: var(--gray-500); }
.text-primary { color: var(--primary); }
.overflow-hidden { overflow: hidden; }

/* ── Required marker & misc form helpers ───────────────────── */
.required { color: var(--danger); font-weight: 600; }
.eye-show, .eye-hide { pointer-events: none; display: block; }
.tags-input {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius);
  background: #fff;
  min-height: 42px;
  align-items: center;
}
.tags-input input {
  border: none;
  outline: none;
  flex: 1;
  min-width: 80px;
  padding: 2px 6px;
  font-size: 0.875rem;
}

/* ── Form Grid (create/edit pages) ─────────────────────────── */
.form-grid { display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start; }
.form-main { min-width: 0; }
.form-sidebar { display: flex; flex-direction: column; gap: 16px; }
.form-actions { display: flex; flex-direction: column; gap: 8px; }

/* ── Danger Zone ────────────────────────────────────────────── */
.danger-zone {
  margin-top: 16px;
  padding: 16px;
  border: 1px solid var(--danger);
  border-radius: var(--border-radius);
  background: var(--danger-light);
}
.danger-zone h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--danger);
  margin-bottom: 8px;
}
.danger-zone p {
  font-size: 0.8rem;
  color: var(--gray-600);
  margin-bottom: 12px;
}

/* ── Back Link ──────────────────────────────────────────────── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-500);
  margin-bottom: 16px;
  transition: color 0.15s;
}
.back-link:hover { color: var(--primary); }

/* ── Radio Options ──────────────────────────────────────────── */
.radio-option {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 2px 0;
  font-size: 0.9rem;
  color: var(--gray-700);
}
.radio-option input[type="radio"] { display: none; }
.radio-custom {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--gray-300);
  flex-shrink: 0;
  transition: all 0.15s;
  position: relative;
  display: inline-block;
}
.radio-option input[type="radio"]:checked ~ .radio-custom {
  border-color: var(--primary);
  background: var(--primary);
  box-shadow: inset 0 0 0 3px #fff;
}

/* ── Auth Brand ─────────────────────────────────────────────── */
.auth-brand { text-align: center; margin-bottom: 28px; }
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-800);
}

/* ── Auth Terms ─────────────────────────────────────────────── */
.auth-terms {
  text-align: center;
  font-size: 0.78rem;
  color: var(--gray-400);
  margin-top: 16px;
  line-height: 1.6;
}
.auth-terms a { color: var(--primary); }
.auth-terms a:hover { text-decoration: underline; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .tasks-columns { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --sidebar-width: 240px; }

  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-overlay.open { display: block; }
  .sidebar-toggle { display: flex; }
  .header-menu-btn { display: flex; }
  .mobile-menu-btn { display: flex; }

  .main-content { margin-left: 0; }

  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid-sm { grid-template-columns: 1fr 1fr 1fr; }

  .page-header { flex-direction: column; align-items: flex-start; }
  .page-content { padding: 16px; }

  .filter-form { flex-direction: column; align-items: stretch; }
  .filter-search, .filter-select { max-width: 100%; }

  .form-row, .form-row-3 { grid-template-columns: 1fr; }

  .line-item-row { grid-template-columns: 1fr; }
  .settings-layout { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }

  .quick-actions { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .stats-grid, .stats-grid-sm { grid-template-columns: 1fr; }
  .auth-card { padding: 24px; }
}