/* ChaiUI Design System for Bulk Mailer */
@import url('https://fonts.googleapis.com/css2?family=Geist+Mono:wght@400;500;600&family=Manrope:wght@300;400;500;600;700&family=Montserrat:wght@400;500;600;700&family=Onest:wght@400;500;600;700&display=swap');

:root {
  --radius: 0.625rem;
  --bg: #ffffff;
  --fg: #0a0a0a;
  --card-bg: rgba(255, 255, 255, 0.9);
  --card-border: rgba(120, 53, 15, 0.15);
  --card-border-hover: rgba(120, 53, 15, 0.28);
  --input-bg: #f9fafb;
  --input-border: #e5e7eb;
  --input-border-focus: #171717;
  --muted: #737373;
  --muted-light: #f5f5f5;
  --highlight: #854d0e; /* yellow-800 */
  --brand: #ea580c;
  --header-bg: rgba(255, 255, 255, 0.85);
  --font-sans: 'Manrope', ui-sans-serif, system-ui, sans-serif;
  --font-display: 'Montserrat', ui-sans-serif, system-ui, sans-serif;
  --font-brand: 'Onest', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, monospace;
}

html.dark {
  --bg: #0a0a0a;
  --fg: #fafafa;
  --card-bg: rgba(18, 18, 18, 0.65);
  --card-border: rgba(255, 247, 237, 0.12);
  --card-border-hover: rgba(255, 247, 237, 0.26);
  --input-bg: rgba(255, 255, 255, 0.04);
  --input-border: rgba(255, 255, 255, 0.12);
  --input-border-focus: #ffffff;
  --muted: #a3a3a3;
  --muted-light: #171717;
  --highlight: #ffedd5; /* orange-100 */
  --brand: #ff7d0c;
  --header-bg: rgba(10, 10, 10, 0.82);
}

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

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, .font-display {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

.font-brand {
  font-family: var(--font-brand);
}

.font-mono {
  font-family: var(--font-mono);
}

/* The signature highlight phrase */
.highlight {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.02em;
  text-transform: capitalize;
  color: var(--highlight);
}

/* Header & Nav */
.chai-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
  transition: all 0.3s ease;
}

.chai-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.875rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chai-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--fg);
  font-family: var(--font-brand);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.chai-logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 9999px;
  background-color: var(--brand);
}

.chai-nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.chai-nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.chai-nav-link:hover {
  color: var(--fg);
  background: var(--muted-light);
}

.chai-nav-link.active {
  color: var(--fg);
  background: var(--muted-light);
  font-weight: 600;
}

/* Chai Layout Containers */
.chai-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem 1.5rem;
  width: 100%;
  flex: 1;
}

/* Chai Cards (Warm hairline, no shadow) */
.chai-card {
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid var(--card-border);
  background-color: var(--card-bg);
  backdrop-filter: blur(8px);
  padding: 1.5rem;
  transition: border-color 0.3s ease, opacity 0.3s ease;
}

.chai-card:hover {
  border-color: var(--card-border-hover);
}

.chai-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--card-border);
}

.chai-card-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--fg);
}

.chai-card-desc {
  font-size: 0.875rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

/* Stat Cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  border-radius: calc(var(--radius) + 4px);
  border: 1px solid var(--card-border);
  background-color: var(--card-bg);
  padding: 1.25rem 1.5rem;
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
}

.stat-card:hover {
  border-color: var(--card-border-hover);
}

.stat-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-top: 0.375rem;
  letter-spacing: -0.03em;
  color: var(--fg);
}

.stat-subtext {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

/* Chai Asymmetric Buttons */
.btn-asym {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 2.375rem;
  padding: 0 1.25rem;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  border-radius: 0 var(--radius) 0 var(--radius);
  background-color: var(--fg);
  color: var(--bg);
  transition: all 0.2s ease;
}

.btn-asym:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-asym-mirror {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 2.375rem;
  padding: 0 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border-radius: var(--radius) 0 var(--radius) 0;
  border: 1px solid var(--card-border);
  background-color: transparent;
  color: var(--fg);
  transition: all 0.2s ease;
}

.btn-asym-mirror:hover {
  background-color: var(--muted-light);
  border-color: var(--card-border-hover);
}

/* Secondary & Card Buttons */
.btn-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  height: 2rem;
  padding: 0 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 0.375rem;
  border: 1px solid var(--card-border);
  background-color: var(--muted-light);
  color: var(--fg);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-card:hover {
  border-color: var(--card-border-hover);
  background-color: rgba(255, 255, 255, 0.1);
}

.btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  height: 2rem;
  padding: 0 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 0.375rem;
  border: 1px solid rgba(239, 68, 68, 0.3);
  background-color: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-danger:hover {
  background-color: #ef4444;
  color: #ffffff;
}

/* Status Badges */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.2rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid transparent;
}

.status-active, .status-sent, .status-completed {
  border-color: rgba(16, 185, 129, 0.25);
  color: #10b981;
  background-color: rgba(16, 185, 129, 0.08);
}

.status-sending, .status-queued {
  border-color: rgba(59, 130, 246, 0.25);
  color: #3b82f6;
  background-color: rgba(59, 130, 246, 0.08);
}

.status-scheduled, .status-paused {
  border-color: rgba(245, 158, 11, 0.25);
  color: #f59e0b;
  background-color: rgba(245, 158, 11, 0.08);
}

.status-failed, .status-bounced, .status-suppressed, .status-unsubscribed, .status-cancelled {
  border-color: rgba(239, 68, 68, 0.25);
  color: #ef4444;
  background-color: rgba(239, 68, 68, 0.08);
}

.status-skipped {
  border-color: rgba(156, 163, 175, 0.25);
  color: #9ca3af;
  background-color: rgba(156, 163, 175, 0.08);
}

/* Chai Tables */
.chai-table-container {
  overflow-x: auto;
  width: 100%;
}

.chai-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.chai-table th {
  padding: 0.75rem 1rem;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--card-border);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chai-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--card-border);
  color: var(--fg);
}

.chai-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Forms and Inputs */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: 0.375rem;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--fg);
  border-radius: var(--radius);
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color 0.2s ease, outline 0.2s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--input-border-focus);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--muted);
  opacity: 0.7;
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Form Grid */
.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

/* Animated glint badge */
.chai-badge-glint {
  position: relative;
  display: inline-flex;
  overflow: hidden;
  border-radius: 9999px;
  padding: 1px;
}

.chai-badge-glint-spin {
  position: absolute;
  top: 50%;
  left: 50%;
  height: 20px;
  width: 250px;
  background: linear-gradient(to right, transparent, transparent, #ff7d0c);
  transform: translate(-50%, -50%);
  animation: chai-spin 4s linear infinite;
}

.chai-badge-glint-content {
  position: relative;
  z-index: 10;
  border-radius: 9999px;
  background-color: var(--muted-light);
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--fg);
}

@keyframes chai-spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* Modals & Confirm Dialogs */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.open {
  display: flex;
}

.modal-card {
  width: 100%;
  max-width: 520px;
  background-color: var(--bg);
  border: 1px solid var(--card-border-hover);
  border-radius: calc(var(--radius) + 6px);
  padding: 1.75rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* Progress bar */
.chai-progress {
  width: 100%;
  height: 8px;
  background-color: var(--muted-light);
  border-radius: 9999px;
  overflow: hidden;
}

.chai-progress-fill {
  height: 100%;
  background-color: #10b981;
  transition: width 0.3s ease;
}

/* Footer hairline */
.chai-footer {
  position: relative;
  margin-top: auto;
  padding: 2.5rem 1.5rem;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  color: var(--muted);
}

.chai-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  height: 1px;
  width: 100%;
  max-width: 1280px;
  transform: translateX(-50%);
  background-color: #d97706;
  opacity: 0.15;
  mask-image: linear-gradient(90deg, transparent 0%, black 40%, black 60%, transparent 100%);
}

/* Live preview frame */
.preview-pane {
  background-color: #ffffff;
  color: #111827;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  overflow: hidden;
  min-height: 400px;
}

/* Utilities */
.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }

/* Responsive */
@media (max-width: 768px) {
  .chai-nav-links {
    display: none; /* Can be toggled on mobile */
  }
  .form-grid-2, .form-grid-3 {
    grid-template-columns: 1fr;
  }
}