/* ==========================================================================
   Global Styles & Design System - Interview Trainer
   ========================================================================== */

:root {
  /* Brand colors */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-dark: #1e40af;
  
  --secondary: #475569;
  --secondary-light: #f1f5f9;
  --secondary-dark: #334155;
  
  --success: #10b981;
  --success-light: #ecfdf5;
  --success-dark: #047857;
  
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --warning-dark: #b45309;
  
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --danger-dark: #b91c1c;
  
  --info: #0ea5e9;
  --info-light: #f0f9ff;
  
  --dark-bg: #0f172a;
  --dark-surface: #1e293b;
  --light-bg: #f8fafc;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --border-focus: #3b82f6;
  
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.08), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text-main);
  background-color: var(--light-bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--primary-hover);
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

main.main-content {
  flex: 1;
  padding: 2.5rem 0;
}

/* Navbar */
.navbar {
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-xs);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--dark-bg);
  letter-spacing: -0.3px;
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--primary), #4f46e5);
  color: #fff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.25);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-item {
  color: var(--secondary);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.nav-item:hover, .nav-item.active {
  color: var(--primary);
  background-color: var(--primary-light);
}

.nav-role-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background-color: var(--primary-light);
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid #bfdbfe;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  line-height: 1.25;
  text-align: center;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 1px 2px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background-color: #ffffff;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: var(--secondary-light);
  border-color: #cbd5e1;
}

.btn-outline-primary {
  background-color: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline-primary:hover {
  background-color: var(--primary-light);
  color: var(--primary-dark);
}

.btn-outline-danger {
  background-color: transparent;
  border-color: var(--danger);
  color: var(--danger);
}

.btn-outline-danger:hover {
  background-color: var(--danger-light);
  color: var(--danger-dark);
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 1.35rem;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.45rem;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-main);
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}

.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-help {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.form-errors {
  list-style: none;
  margin-top: 0.35rem;
  color: var(--danger-dark);
  font-size: 0.84rem;
  font-weight: 500;
}

/* Password Toggle Container */
.password-input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-group .form-input {
  padding-right: 2.75rem;
}

.password-toggle-btn {
  position: absolute;
  right: 0.75rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.3rem 0.5rem;
  user-select: none;
}

.password-toggle-btn:hover {
  color: var(--text-main);
}

/* Alerts & Messages */
.messages-container {
  margin-bottom: 1.75rem;
}

.alert {
  padding: 0.9rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
  font-size: 0.93rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid transparent;
  box-shadow: var(--shadow-xs);
}

.alert-success {
  background-color: var(--success-light);
  color: var(--success-dark);
  border-color: #a7f3d0;
}

.alert-error, .alert-danger {
  background-color: var(--danger-light);
  color: var(--danger-dark);
  border-color: #fecaca;
}

.alert-warning {
  background-color: var(--warning-light);
  color: var(--warning-dark);
  border-color: #fde68a;
}

.alert-info {
  background-color: var(--info-light);
  color: #0369a1;
  border-color: #bae6fd;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  line-height: 1.2;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.badge-pending {
  background-color: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}

.badge-ongoing {
  background-color: #e0f2fe;
  color: #075985;
  border: 1px solid #bae6fd;
}

.badge-completed {
  background-color: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.badge-expired {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.badge-attended {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.badge-not-attended {
  background-color: #ffe4e6;
  color: #9f1239;
  border: 1px solid #fecdd3;
}

/* Footer */
.footer {
  background-color: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 2.25rem 0;
  margin-top: auto;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}