/* Design system tokens */
:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
  --space-0: 0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;

  --radius-1: 4px;
  --radius-2: 8px;
  --radius-3: 12px;

  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-border: #e5e7eb;
  --color-text: #111827;
  --color-muted: #6b7280;
  --color-primary: #3b82f6;
  --color-primary-600: #2563eb;
  --color-success: #059669;
  --color-warning: #d97706;
  --color-danger: #dc2626;

  --shadow-1: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-2: 0 4px 10px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }

html, body {
  padding: 0;
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}
.container-sm { max-width: 640px; }
.container-lg { max-width: 1200px; }

.section {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-1);
}
.section > h2 {
  margin: 0 0 var(--space-3) 0;
  font-size: 20px;
}

.field { margin-bottom: var(--space-4); }
.field label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}
.field .help {
  color: var(--color-muted);
  font-size: 12px;
  margin-top: var(--space-1);
}

input[type="text"],
input[type="number"],
input[type="email"],
select,
textarea {
  width: 100%;
  padding: var(--space-3) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-1);
  background: #fff;
  color: var(--color-text);
}
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}
.timezone-selector {
  max-width: 400px;
}

button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px 14px;
  border-radius: var(--radius-1);
  border: 1px solid transparent;
  background: var(--color-card);
  color: var(--color-text);
  cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease, box-shadow .15s ease;
}
.btn:hover { box-shadow: var(--shadow-1); }
.btn:disabled { opacity: .6; cursor: not-allowed; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.btn-secondary {
  background: #f3f4f6;
  color: #111827;
  border-color: #e5e7eb;
}
.btn-secondary:hover { background: #e5e7eb; }

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
}
.btn-danger:hover { filter: brightness(.95); }

.banner {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-1);
  border: 1px solid var(--color-border);
  background: #f9fafb;
  margin-bottom: var(--space-3);
}
.banner.success { background: #ecfdf5; border-color: #a7f3d0; color: #065f46; }
.banner.warning { background: #fffbeb; border-color: #fcd34d; color: #92400e; }
.banner.info { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }
.banner.error { background: #fef2f2; border-color: #fecaca; color: #991b1b; }

.table {
  width: 100%;
  border-collapse: collapse;
}
.table th,
.table td {
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}
.table th {
  font-weight: 700;
  font-size: 14px;
  color: var(--color-text);
}
.table tbody tr:hover { background: #fafafa; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid transparent;
}
.badge.success { background: #ecfdf5; border-color: #10b981; color: #065f46; }
.badge.warn { background: #fffbeb; border-color: #f59e0b; color: #92400e; }
.badge.neutral { background: #f3f4f6; border-color: #e5e7eb; color: #374151; }

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: 999;
}
.modal {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2);
  box-shadow: var(--shadow-2);
  width: 100%;
  max-width: 560px;
  padding: var(--space-5);
}
.modal-title {
  margin: 0 0 var(--space-3) 0;
  font-size: 20px;
}
.modal-actions {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
  margin-top: var(--space-4);
}

.sr-only,
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Legacy button (kept for compatibility) */
.ms-button {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  background-color: #2F2F2F;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 16px;
  transition: background-color 0.2s;
}
.ms-button:hover { background-color: #404040; }
.ms-button img { width: 24px; height: 24px; margin-right: 12px; }

/* Layout helpers */
.stack { display: flex; flex-direction: column; gap: var(--space-3); }
.hstack { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.table-container { overflow-x: auto; }
/* Stepper styles */
.stepper {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}
.step {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 12px;
  border-radius: var(--radius-1);
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-muted);
  box-shadow: var(--shadow-1);
}
.step .index {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: #f3f4f6;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--color-text);
}
.step .label {
  font-size: 13px;
  font-weight: 600;
}
.step.active {
  border-color: var(--color-primary);
  color: var(--color-primary-600);
}
.step.active .index {
  background: var(--color-primary);
  color: #fff;
}
.step.done {
  border-color: #a7f3d0;
  background: #ecfdf5;
  color: #065f46;
}
.step.done .index {
  background: #10b981;
  color: #fff;
}

/* Pricing grid and cards */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-6);
  margin-bottom: var(--space-6);
}

.pricing-card {
  position: relative;
  background: var(--color-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-3);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-1);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
}

.pricing-card.popular {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.15);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: 4px 16px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-1);
}

.pricing-header {
  text-align: center;
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-4);
}

.plan-name {
  margin: 0 0 var(--space-3) 0;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
}

.plan-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin-bottom: var(--space-2);
}

.price-amount {
  font-size: 42px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
}

.price-period {
  font-size: 16px;
  color: var(--color-muted);
  margin-left: var(--space-1);
}

.plan-minutes {
  font-size: 14px;
  color: var(--color-muted);
  font-weight: 500;
}

.features-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-6) 0;
  flex-grow: 1;
}

.features-list li {
  padding: var(--space-3) 0;
  border-bottom: 1px solid #f3f4f6;
  display: flex;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text);
}

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

.features-list li::before {
  content: "✓";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-right: var(--space-2);
  flex-shrink: 0;
  border-radius: 50%;
  background: #ecfdf5;
  color: #10b981;
  font-weight: 700;
  font-size: 12px;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

.pricing-card.popular .btn-primary {
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.25);
}

.pricing-card.popular .btn-primary:hover {
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.35);
}

/* Checkbox group styling */
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.checkbox-item input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.checkbox-item label {
  margin: 0;
  font-weight: normal;
  cursor: pointer;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-card {
    max-width: 100%;
  }
  
  .price-amount {
    font-size: 36px;
  }
}