:root {
  --primary: #9DC8B0;
  --primary-dark: #7ab094;
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --text: #2d3748;
  --text-light: #718096;
  --border: #e2e8f0;
  --success: #48bb78;
  --warning: #ed8936;
  --danger: #f56565;
  --info: #4299e1;
  --shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --radius: 12px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Rubik', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ─── Login Screen ─── */
.login-screen {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; min-height: 100dvh; padding: 20px;
  background: #0f0f10;
  position: relative; overflow: hidden;
}
.login-screen::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(157,200,176,0.15) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(26,35,50,0.8) 0%, transparent 60%),
              linear-gradient(135deg, #0f0f10 0%, #1a2a20 50%, #0f0f10 100%);
}
.login-box {
  background: rgba(255,255,255,0.97); border-radius: 20px;
  padding: 48px 36px; width: 100%; max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 0 1px rgba(255,255,255,0.05);
  text-align: center; position: relative; z-index: 1;
}
.login-logo {
  width: 100px; height: auto; margin: 0 auto 16px; display: block;
  filter: drop-shadow(0 4px 10px rgba(0,0,0,0.15));
}
.login-box h1 {
  font-size: 1.6rem; margin-bottom: 6px; color: #2a5a3e;
  font-weight: 800; letter-spacing: -0.5px;
}
.login-box p {
  color: var(--text-light); margin-bottom: 28px; font-size: 0.9rem;
}
.login-box input {
  width: 100%; padding: 14px 18px; border: 1px solid #e2e8f0;
  border-radius: 12px; font-family: inherit; font-size: 1rem;
  margin-bottom: 14px; text-align: center; background: #f8fafc;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.login-box input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(157,200,176,0.25); background: #fff;
}
.login-box button.login-btn {
  width: 100%; padding: 14px; background: var(--primary);
  color: white; border: none; border-radius: 12px;
  font-family: inherit; font-size: 1.05rem; font-weight: 700;
  cursor: pointer; transition: background 0.2s, transform 0.1s;
  margin-top: 4px;
}
.login-box button.login-btn:hover { background: var(--primary-dark); transform: translateY(-1px); }
.login-box button.login-btn:active { transform: translateY(0); }
.login-error { color: var(--danger); font-size: 0.85rem; margin-top: 12px; display: none; }

/* ─── Password Toggle ─── */
.password-wrapper {
  position: relative; width: 100%; margin-bottom: 14px;
}
.password-wrapper .input-field {
  padding-left: 48px; margin-bottom: 0;
}
.login-box .toggle-password {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  background: none !important; border: none; cursor: pointer; padding: 4px;
  color: var(--text-light); width: 28px; height: 28px;
  margin: 0; border-radius: 0;
}
.login-box .toggle-password:hover { background: none !important; color: var(--primary-dark); transform: translateY(-50%); }
.login-box .toggle-password:active { transform: translateY(-50%); }
.toggle-password svg { width: 20px; height: 20px; display: block; }
.toggle-password .hidden { display: none; }

/* ─── App Layout ─── */
.app { display: none; }
.app.active { display: block; }
.login-screen.hidden { display: none; }
.modal.hidden { display: none !important; }
.page.hidden { display: none; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; gap: 12px; flex-wrap: wrap; }
.filter-bar { margin-bottom: 16px; }
.filter-select { padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-family: inherit; }

/* Top bar */
.topbar {
  background: white; padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between;
  box-shadow: var(--shadow); position: sticky; top: 0; z-index: 100;
}
.topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar h1 { font-size: 1.1rem; color: var(--primary-dark); }
.topbar-left { display: flex; align-items: center; gap: 8px; }
.topbar .btn-sm {
  padding: 6px 14px; border-radius: 8px; font-size: 0.85rem;
  border: 1px solid var(--border); background: white; cursor: pointer;
  font-family: inherit; transition: all 0.2s;
}
.topbar .btn-sm:hover { background: var(--bg); }
.topbar .btn-logout {
  color: white; background: var(--danger); border-color: var(--danger);
  font-weight: 600;
}
.topbar .btn-logout:hover { background: #e53e3e; color: white; }

/* Navigation tabs */
.nav-tabs {
  display: flex; gap: 0; background: white; padding: 0 24px;
  border-bottom: 1px solid var(--border);
}
.nav-tab {
  padding: 12px 20px; cursor: pointer; font-size: 0.9rem;
  color: var(--text-light); border-bottom: 2px solid transparent;
  transition: all 0.2s; font-weight: 500;
}
.nav-tab:hover { color: var(--text); }
.nav-tab.active { color: var(--primary-dark); border-bottom-color: var(--primary); }

/* Content area */
.content { padding: 24px; max-width: 1200px; margin: 0 auto; }
.page { display: none; }
.page.active { display: block; }

/* ─── Dashboard ─── */
.dashboard-header { margin-bottom: 24px; }
.dashboard-header h2 { font-size: 1.5rem; font-weight: 700; color: var(--text); }
.dashboard-subtitle { font-size: 0.9rem; color: var(--text-light); margin-top: 4px; }
.dashboard-tables { display: grid; gap: 20px; }

/* ─── Stats Cards ─── */
.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px; margin-bottom: 28px;
}
.stat-card {
  background: var(--card-bg); padding: 20px; border-radius: var(--radius);
  box-shadow: var(--shadow); display: flex; align-items: center; gap: 14px;
  border-right: 4px solid transparent; transition: transform 0.15s, box-shadow 0.15s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.stat-icon { font-size: 1.8rem; flex-shrink: 0; }
.stat-info { flex: 1; min-width: 0; }
.stat-card .stat-label { font-size: 0.78rem; color: var(--text-light); margin-bottom: 2px; font-weight: 500; }
.stat-card .stat-value { font-size: 1.6rem; font-weight: 700; }

.stat-card--primary { border-right-color: #667eea; }
.stat-card--primary .stat-value { color: #667eea; }
.stat-card--success { border-right-color: #48bb78; }
.stat-card--success .stat-value { color: #48bb78; }
.stat-card--info { border-right-color: #4299e1; }
.stat-card--info .stat-value { color: #4299e1; }
.stat-card--green { border-right-color: #38a169; }
.stat-card--green .stat-value { color: #38a169; }
.stat-card--danger { border-right-color: #f56565; }
.stat-card--danger .stat-value { color: #f56565; }
.stat-card--purple { border-right-color: #9f7aea; }
.stat-card--purple .stat-value { color: #9f7aea; }
.stat-card--warning { border-right-color: #ed8936; }
.stat-card--warning .stat-value { color: #ed8936; }

/* ─── Cards & Tables ─── */
.card {
  background: var(--card-bg); border-radius: var(--radius);
  box-shadow: var(--shadow); margin-bottom: 20px; overflow: hidden;
}
.card-header {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-header h2 { font-size: 1rem; font-weight: 600; }
.card-body { padding: 20px; }

table { width: 100%; border-collapse: collapse; }
th { text-align: right; padding: 10px 12px; font-size: 0.8rem; color: var(--text-light); border-bottom: 1px solid var(--border); font-weight: 500; }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f7fafc; }
.clickable-row { cursor: pointer; }

/* ─── Buttons ─── */
.btn {
  padding: 8px 18px; border-radius: 8px; font-family: inherit;
  font-size: 0.9rem; cursor: pointer; border: none;
  font-weight: 500; transition: all 0.2s; display: inline-flex;
  align-items: center; gap: 6px;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #e53e3e; }
.btn-outline {
  background: white; border: 1px solid var(--border); color: var(--text);
}
.btn-outline:hover { background: var(--bg); }

/* ─── Badge ─── */
.badge {
  display: inline-block; padding: 2px 10px; border-radius: 12px;
  font-size: 0.75rem; font-weight: 600;
}
.badge-green { background: #c6f6d5; color: #276749; }
.badge-red { background: #fed7d7; color: #9b2c2c; }
.badge-gray { background: #e2e8f0; color: #4a5568; }
.badge-blue { background: #bee3f8; color: #2a4365; }
.badge-purple { background: #e9d8fd; color: #553c9a; }

/* ─── User-specific ─── */
.actions-cell { white-space: nowrap; }
.actions-cell .btn { margin-inline-end: 4px; }
.btn-danger-outline { color: var(--danger); border-color: var(--danger); }
.btn-danger-outline:hover { background: var(--danger); color: #fff; }
.checkbox-label { display: flex; align-items: center; gap: 8px; margin: 12px 0; font-size: 0.9rem; cursor: pointer; }
.checkbox-label input[type="checkbox"] { width: 18px; height: 18px; cursor: pointer; }

/* ─── Forms ─── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-light); margin-bottom: 4px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border);
  border-radius: 8px; font-family: inherit; font-size: 0.9rem;
}
.form-group textarea { min-height: 80px; resize: vertical; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ─── Modal ─── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  display: none; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px;
}
.modal-overlay.active { display: flex; }
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px;
}
.modal.hidden { display: none; }
.modal .modal-content {
  background: white; border-radius: var(--radius); width: 100%;
  max-width: 600px; max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-lg); padding: 24px; position: relative;
}
.modal .modal-content h2 { font-size: 1.1rem; margin-bottom: 16px; }
.modal .modal-close {
  position: absolute; top: 12px; left: 12px;
  background: none; border: none; font-size: 1.5rem; cursor: pointer;
  color: var(--text-light); line-height: 1;
}
.modal .input-field {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border);
  border-radius: 8px; font-family: inherit; font-size: 0.9rem;
  margin-bottom: 12px; display: block;
}
.modal .input-field:focus { outline: none; border-color: var(--primary); }
.modal textarea.input-field { min-height: 70px; resize: vertical; }
.modal-header {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h2 { font-size: 1.1rem; }
.modal-close {
  background: none; border: none; font-size: 1.5rem; cursor: pointer;
  color: var(--text-light); line-height: 1;
}
.modal-body { padding: 20px; }
.modal-footer {
  padding: 16px 20px; border-top: 1px solid var(--border);
  display: flex; justify-content: flex-start; gap: 8px;
}

/* Search bar */
.search-bar {
  display: flex; gap: 12px; margin-bottom: 16px; align-items: center;
}
.search-bar input {
  flex: 1; padding: 10px 14px; border: 1px solid var(--border);
  border-radius: 8px; font-family: inherit; font-size: 0.9rem;
}
.search-bar input:focus { outline: none; border-color: var(--primary); }

/* Loading spinner */
.loading { text-align: center; padding: 40px; color: var(--text-light); }

/* ─── Password Reset ─── */
.reset-box {
  background: rgba(255,255,255,0.97); border-radius: 20px;
  padding: 48px 36px; width: 100%; max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3); text-align: center;
  position: relative; z-index: 1;
}
.reset-box h2 { font-size: 1.4rem; margin-bottom: 6px; color: #2a5a3e; font-weight: 800; }
.reset-box p { color: var(--text-light); margin-bottom: 24px; font-size: 0.9rem; }
.reset-box input {
  width: 100%; padding: 12px 16px; border: 1px solid var(--border);
  border-radius: 8px; font-family: inherit; font-size: 1rem;
  margin-bottom: 16px; text-align: center;
}
.reset-box input:focus { outline: none; border-color: var(--primary); }
.reset-box button {
  width: 100%; padding: 12px; background: var(--primary);
  color: white; border: none; border-radius: 8px;
  font-family: inherit; font-size: 1rem; font-weight: 600;
  cursor: pointer; transition: background 0.2s;
}
.reset-box button:hover { background: var(--primary-dark); }
.reset-link { color: var(--primary-dark); cursor: pointer; font-size: 0.85rem; margin-top: 12px; text-decoration: underline; }
.reset-msg { font-size: 0.85rem; margin-top: 12px; }
.reset-msg.success { color: var(--success); }
.reset-msg.error { color: var(--danger); }
.user-info { font-size: 0.85rem; color: var(--text-light); }

/* App content */
.app-content { padding: 24px; max-width: 1200px; margin: 0 auto; }

/* Tab buttons (HTML uses .tab-btn) */
.tab-btn {
  padding: 12px 20px; cursor: pointer; font-size: 0.9rem;
  color: var(--text-light); border: none; background: none;
  border-bottom: 2px solid transparent;
  transition: all 0.2s; font-weight: 500; font-family: inherit;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--primary-dark); border-bottom-color: var(--primary); }

/* Responsive */
@media (max-width: 768px) {
  .app-content, .content { padding: 12px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .nav-tabs { overflow-x: auto; padding: 0 12px; flex-wrap: nowrap; }
  .tab-btn, .nav-tab { white-space: nowrap; padding: 10px 12px; font-size: 0.85rem; }
  .topbar {
    padding: 10px 12px; flex-wrap: wrap; gap: 8px;
  }
  .topbar-right { flex-wrap: wrap; gap: 6px; }
  .topbar h1, .app-title { font-size: 0.95rem; }
  .topbar .btn-sm { padding: 5px 10px; font-size: 0.8rem; }
  .user-info { font-size: 0.75rem; }
  table { font-size: 0.8rem; display: block; overflow-x: auto; }
  th, td { padding: 8px 6px; }
  .modal { max-width: 95vw; margin: 10px; }
  .modal-body { padding: 14px; }
  .card-header { flex-wrap: wrap; gap: 8px; padding: 12px 14px; }
  .card-body { padding: 14px; }
  .stat-card .stat-value { font-size: 1.4rem; }
}