/* ============================================================
   Seguimiento Correos IA - Styles
   Auth Web - Módulo 1
   ============================================================ */

:root {
  --primary: #0078d4;
  --primary-dark: #005a9e;
  --primary-light: #e8f0fe;
  --success: #107c10;
  --success-light: #dff6dd;
  --warning: #d83b01;
  --warning-light: #fde7e9;
  --neutral-50: #f9fafb;
  --neutral-100: #f3f4f6;
  --neutral-200: #e5e7eb;
  --neutral-300: #d1d5db;
  --neutral-400: #9ca3af;
  --neutral-500: #6b7280;
  --neutral-600: #4b5563;
  --neutral-700: #374151;
  --neutral-800: #1f2937;
  --neutral-900: #111827;
  --ms-blue: #0078d4;
  --ms-blue-dark: #106ebe;
  --surface: #ffffff;
  --border:   var(--neutral-200);
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
}

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

body {
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--neutral-50);
  color: var(--neutral-800);
  min-height: 100vh;
  line-height: 1.5;
}

/* ---- Layout ---- */

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.navbar {
  background: #fff;
  border-bottom: 1px solid var(--neutral-200);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--neutral-800);
}

.navbar-brand .logo-icon {
  width: 32px;
  height: 32px;
  background: var(--primary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 16px;
}

.navbar-brand .brand-name {
  font-weight: 600;
  font-size: 15px;
}

.navbar-brand .brand-sub {
  font-size: 12px;
  color: var(--neutral-500);
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--neutral-100);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  color: var(--neutral-600);
}

.user-avatar {
  width: 28px;
  height: 28px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 12px;
  font-weight: 600;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
}

.status-dot.inactive {
  background: var(--neutral-400);
}

.main-content {
  flex: 1;
  padding: 40px 24px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.footer {
  background: white;
  border-top: 1px solid var(--neutral-200);
  padding: 16px 24px;
  text-align: center;
  font-size: 12px;
  color: var(--neutral-400);
}

/* ---- Hero / Landing ---- */

.hero {
  text-align: center;
  padding: 60px 0 40px;
}

.hero-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 32px;
  color: white;
  box-shadow: 0 8px 24px rgba(0,120,212,0.3);
}

.hero h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 12px;
}

.hero p {
  font-size: 17px;
  color: var(--neutral-500);
  max-width: 500px;
  margin: 0 auto 32px;
}

/* ---- Cards ---- */

.card {
  background: white;
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
}

.card + .card {
  margin-top: 16px;
}

.card-header {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--neutral-100);
}

.card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--neutral-800);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-subtitle {
  font-size: 13px;
  color: var(--neutral-500);
  margin-top: 4px;
}

/* ---- Steps ---- */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin: 32px 0;
}

.step-card {
  background: white;
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  position: relative;
}

.step-card .step-num {
  width: 28px;
  height: 28px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-card .step-icon {
  font-size: 28px;
  margin-bottom: 10px;
  display: block;
}

.step-card h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--neutral-700);
  margin-bottom: 6px;
}

.step-card p {
  font-size: 12px;
  color: var(--neutral-500);
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-microsoft {
  background: white;
  color: var(--neutral-700);
  border: 1px solid var(--neutral-300);
  padding: 12px 24px;
  font-size: 15px;
  border-radius: var(--radius);
}

.btn-microsoft:hover {
  background: var(--neutral-50);
  border-color: var(--neutral-400);
  box-shadow: var(--shadow-md);
}

.btn-microsoft .ms-logo {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn-secondary {
  background: var(--neutral-100);
  color: var(--neutral-700);
  border: 1px solid var(--neutral-200);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--neutral-200);
}

.btn-danger {
  background: var(--warning-light);
  color: var(--warning);
  border: 1px solid rgba(216,59,1,0.2);
}

.btn-danger:hover:not(:disabled) {
  background: var(--warning);
  color: white;
}

.btn-success {
  background: var(--success);
  color: white;
}

.btn-success:hover:not(:disabled) {
  background: #0b5e0b;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-full {
  width: 100%;
}

/* ---- Forms ---- */

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--neutral-700);
  margin-bottom: 6px;
}

.form-label .required {
  color: var(--warning);
  margin-left: 2px;
}

.form-hint {
  font-size: 12px;
  color: var(--neutral-500);
  margin-top: 5px;
}

.form-input {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--neutral-800);
  background: white;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,120,212,0.1);
}

.form-input.error {
  border-color: var(--warning);
  box-shadow: 0 0 0 3px rgba(216,59,1,0.1);
}

.form-error {
  font-size: 12px;
  color: var(--warning);
  margin-top: 5px;
  display: none;
}

.form-error.visible {
  display: block;
}

/* Days picker */

.days-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.days-picker input[type="number"] {
  width: 70px;
  text-align: center;
}

.days-input-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.day-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 500;
}

.day-tag button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--primary);
  font-size: 14px;
  padding: 0;
  line-height: 1;
  opacity: 0.6;
}

.day-tag button:hover {
  opacity: 1;
}

.add-day-btn {
  background: none;
  border: 1px dashed var(--neutral-300);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 13px;
  color: var(--neutral-500);
  cursor: pointer;
  transition: all 0.15s;
}

.add-day-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ---- Status badges ---- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-active {
  background: var(--success-light);
  color: var(--success);
}

.badge-inactive {
  background: var(--neutral-100);
  color: var(--neutral-500);
}

.badge-warning {
  background: #fff4cc;
  color: #7d4e00;
}

.badge-error {
  background: var(--warning-light);
  color: var(--warning);
}

/* ---- Alert / Notice boxes ---- */

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.alert-info {
  background: var(--primary-light);
  color: var(--primary-dark);
  border: 1px solid rgba(0,120,212,0.2);
}

.alert-success {
  background: var(--success-light);
  color: var(--success);
  border: 1px solid rgba(16,124,16,0.2);
}

.alert-warning {
  background: #fff4cc;
  color: #7d4e00;
  border: 1px solid rgba(210,150,0,0.3);
}

.alert-danger {
  background: var(--warning-light);
  color: var(--warning);
  border: 1px solid rgba(216,59,1,0.2);
}

.alert-icon {
  flex-shrink: 0;
  font-size: 16px;
  margin-top: 1px;
}

/* ---- Info list / details ---- */

.info-list {
  list-style: none;
}

.info-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--neutral-100);
  font-size: 14px;
}

.info-list li:last-child {
  border-bottom: none;
}

.info-list .info-key {
  color: var(--neutral-500);
  font-size: 13px;
}

.info-list .info-value {
  color: var(--neutral-800);
  font-weight: 500;
}

/* ---- Enrollment status card ---- */

.enroll-status {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--success-light);
  border: 1px solid rgba(16,124,16,0.25);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}

.enroll-status.not-enrolled {
  background: var(--neutral-50);
  border-color: var(--neutral-200);
}

.enroll-status .status-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 22px;
  flex-shrink: 0;
}

.enroll-status.not-enrolled .status-icon-wrap {
  background: var(--neutral-300);
}

.enroll-status .status-text h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--neutral-800);
}

.enroll-status .status-text p {
  font-size: 13px;
  color: var(--neutral-500);
  margin-top: 2px;
}

/* ---- Unenroll confirmation ---- */

.danger-zone {
  border: 1px solid rgba(216,59,1,0.3);
  border-radius: var(--radius-lg);
  padding: 20px;
  background: var(--warning-light);
}

.danger-zone h3 {
  color: var(--warning);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
}

.danger-zone p {
  font-size: 13px;
  color: var(--neutral-600);
  margin-bottom: 16px;
}

/* ---- Section dividers ---- */

.section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--neutral-400);
  margin: 28px 0 12px;
}

/* ---- Loading state ---- */

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}

.spinner.dark {
  border-color: rgba(0,0,0,0.1);
  border-top-color: var(--primary);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  gap: 12px;
  backdrop-filter: blur(2px);
}

.loading-overlay .spinner {
  width: 36px;
  height: 36px;
  border-width: 3px;
}

.loading-overlay p {
  font-size: 14px;
  color: var(--neutral-600);
}

/* ---- Toast notifications ---- */

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--neutral-800);
  color: white;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 280px;
  max-width: 400px;
  animation: slideIn 0.2s ease;
  cursor: pointer;
}

.toast.success {
  background: var(--success);
}

.toast.error {
  background: var(--warning);
}

.toast.info {
  background: var(--primary);
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(20px); }
}

/* ---- Responsive ---- */

@media (max-width: 600px) {
  .navbar { padding: 0 16px; }
  .main-content { padding: 24px 16px; }
  .hero h1 { font-size: 24px; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .btn-lg { font-size: 14px; padding: 12px 20px; }
}

/* ---- Utility ---- */

.text-center { text-align: center; }
.text-sm { font-size: 13px; }
.text-muted { color: var(--neutral-500); }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-gap { gap: 12px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-1 { flex: 1; }
.hidden { display: none !important; }

/* ---- Back link ---- */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  color: var(--neutral-600);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, transform 0.15s;
  margin-bottom: 4px;
}

.back-link:hover {
  background: var(--neutral-200);
  color: var(--neutral-800);
  transform: translateX(-3px);
}

/* ---- Theme toggle (dark mode switch) ---- */

.theme-toggle {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 28px;
  flex-shrink: 0;
}

.theme-toggle input { display: none; }

.theme-toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--neutral-300);
  border-radius: 14px;
  cursor: pointer;
  transition: background 0.2s;
}

.theme-toggle-slider::before {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  left: 3px;
  top: 3px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.theme-toggle input:checked + .theme-toggle-slider { background: var(--primary); }
.theme-toggle input:checked + .theme-toggle-slider::before { transform: translateX(22px); }

/* ============================================================
   Dark mode — variables & component overrides
   Activated by:  <html data-theme="dark">
   ============================================================ */

[data-theme="dark"] {
  --primary:       #60a5fa;
  --primary-dark:  #93c5fd;
  --primary-light: #1e3a5f;
  --success:       #4ade80;
  --success-light: #052e16;
  --warning:       #f87171;
  --warning-light: #3b0d0d;
  --neutral-50:  #0f172a;
  --neutral-100: #1e293b;
  --neutral-200: #334155;
  --neutral-300: #475569;
  --neutral-400: #64748b;
  --neutral-500: #94a3b8;
  --neutral-600: #cbd5e1;
  --neutral-700: #e2e8f0;
  --neutral-800: #f1f5f9;
  --neutral-900: #f8fafc;
  --surface: #1e293b;
  --border:   #334155;
}

[data-theme="dark"] body        { background: #0f172a; color: #f1f5f9; }
[data-theme="dark"] .navbar     { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .footer     { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .card       { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .step-card  { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .card-header{ border-color: #334155; }
[data-theme="dark"] .form-input { background: #0f172a; color: #f1f5f9; border-color: #475569; }
[data-theme="dark"] .btn-secondary { background: #334155; color: #e2e8f0; border-color: #475569; }
[data-theme="dark"] .btn-microsoft  { background: #1e293b; color: #e2e8f0; border-color: #475569; }
[data-theme="dark"] .loading-overlay{ background: rgba(15,23,42,0.85); }
[data-theme="dark"] .loading-overlay p { color: #94a3b8; }
[data-theme="dark"] .theme-toggle-slider::before { background: #e2e8f0; }
[data-theme="dark"] .alert-info    { background: #1e3a5f; color: #93c5fd; }
[data-theme="dark"] .alert-warning { background: #3b2a00; color: #fbbf24; }
[data-theme="dark"] .alert-success { background: #052e16; color: #4ade80; }
[data-theme="dark"] .alert-danger  { background: #3b0d0d; color: #f87171; }