/* ==========================================================================
   Conversational Curator — Design System
   ========================================================================== */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap');

/* ---------- Design Tokens ---------- */
:root {
  /* Primary */
  --primary: #006d2f;
  --primary-container: #25d366;
  --on-primary: #ffffff;
  --on-primary-container: #003d19;

  /* Secondary */
  --secondary: #1c695f;
  --on-secondary: #ffffff;

  /* Tertiary (Mascot Pink) */
  --tertiary: #a23760;
  --on-tertiary: #ffffff;

  /* Neutrals */
  --surface: #f7f9fc;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f0f3f8;
  --surface-container: #eaecf1;
  --surface-container-high: #e4e6eb;
  --surface-container-highest: #dddfe4;
  --surface-variant: #c8cad0;
  --on-surface: #191c1e;
  --on-surface-variant: #42474e;
  --outline-variant: rgba(66, 71, 78, 0.15);

  /* Ambient Shadow */
  --shadow-ambient: 0px 12px 32px rgba(25, 28, 30, 0.04);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #006d2f, #25d366);

  /* Typography */
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Radii */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Glass */
  --glass-bg: rgba(221, 223, 228, 0.8);
  --glass-blur: 20px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  min-height: 100vh;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--on-surface);
  line-height: 1.2;
}

.display-lg {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.display-md {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.headline-lg {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.headline-md {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.headline-sm {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
}

.body-lg {
  font-size: 1.125rem;
  line-height: 1.7;
}

.body-md {
  font-size: 1rem;
  line-height: 1.6;
}

.body-sm {
  font-size: 0.875rem;
  line-height: 1.5;
}

.label-lg {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.label-md {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* Numeric data uses Plus Jakarta Sans */
.numeric {
  font-family: var(--font-display);
  font-variant-numeric: tabular-nums;
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-narrow {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ---------- Navigation (Glassmorphism) ---------- */
.nav-glass {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  padding: var(--space-md) 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--on-surface);
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
}

.nav-brand span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: color 0.2s;
}

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

.nav-links .btn-nav {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-md);
  background: var(--surface-container-low);
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: background 0.2s;
  border: none;
  cursor: pointer;
}

.nav-links .btn-nav:hover {
  background: var(--surface-container);
}

/* ---------- Buttons ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  background: var(--gradient-primary);
  color: var(--on-primary);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.2s;
  box-shadow: var(--shadow-ambient);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0px 16px 40px rgba(0, 109, 47, 0.12);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  background: var(--surface-container-low);
  color: var(--on-surface);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s;
}

.btn-secondary:hover {
  background: var(--surface-container);
  transform: translateY(-1px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: transparent;
  color: var(--primary);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  text-decoration: none;
  outline: 2px solid var(--outline-variant);
  transition: outline-color 0.2s, background 0.2s;
}

.btn-outline:hover {
  outline-color: var(--primary);
  background: rgba(0, 109, 47, 0.04);
}

.btn-danger {
  color: #b3261e;
  outline-color: #b3261e40;
}

.btn-danger:hover {
  outline-color: #b3261e;
  background: rgba(179, 38, 30, 0.04);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.875rem;
}

.btn-group {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ---------- Cards (Tonal Layering) ---------- */
.card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-ambient);
}

.card-elevated {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: 0px 8px 24px rgba(25, 28, 30, 0.06);
}

.card-flat {
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.card h3, .card-elevated h3, .card-flat h3 {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

/* ---------- Forms & Inputs ---------- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.01em;
}

.form-input {
  width: 100%;
  padding: 14px 18px;
  background: var(--surface-container-lowest);
  color: var(--on-surface);
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1.5px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  outline: 2px solid transparent;
  transition: border-color 0.2s, outline-color 0.2s, box-shadow 0.2s;
}

.form-input::placeholder {
  color: var(--surface-variant);
}

.form-input:focus {
  border-color: var(--primary);
  outline-color: var(--outline-variant);
  box-shadow: inset 0 0 0 1px rgba(0, 109, 47, 0.08);
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2342474e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 44px;
}

.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--primary);
  cursor: pointer;
}

.form-check span {
  font-size: 0.9375rem;
  color: var(--on-surface);
}

.form-error {
  background: rgba(162, 55, 96, 0.08);
  color: var(--tertiary);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
}

.form-success {
  background: rgba(0, 109, 47, 0.08);
  color: var(--primary);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  margin-bottom: var(--space-lg);
}

/* ---------- Hero Section ---------- */
.hero {
  padding: var(--space-3xl) 0;
  text-align: center;
}

.hero-content {
  max-width: 640px;
  margin: 0 auto;
}

.hero-mascot {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-xl);
  border-radius: var(--radius-xl);
  object-fit: contain;
}

.hero-title {
  margin-bottom: var(--space-md);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero .btn-group {
  justify-content: center;
}

/* ---------- Features Grid ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
  padding: var(--space-2xl) 0;
}

.feature-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  box-shadow: var(--shadow-ambient);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--surface-container-low);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.5rem;
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--on-surface-variant);
  line-height: 1.6;
}

/* ---------- Dashboard ---------- */
.page-header {
  padding: var(--space-xl) 0 var(--space-lg);
}

.page-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
}

.page-header p {
  color: var(--on-surface-variant);
  margin-top: var(--space-xs);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  padding-bottom: var(--space-2xl);
}

.stat-row {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.stat {
  flex: 1;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--on-surface);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  margin-top: var(--space-xs);
}

/* Status badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-active {
  background: rgba(37, 211, 102, 0.12);
  color: var(--primary);
}

.badge-trial {
  background: rgba(28, 105, 95, 0.1);
  color: var(--secondary);
}

.badge-inactive {
  background: var(--surface-container);
  color: var(--on-surface-variant);
}

.badge-verified {
  background: rgba(37, 211, 102, 0.12);
  color: var(--primary);
}

.badge-pending {
  background: rgba(162, 55, 96, 0.1);
  color: var(--tertiary);
}

/* Connection list */
.connection-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.connection-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: var(--surface-container-low);
  border-radius: var(--radius-lg);
}

.connection-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-width: 0;
  overflow: hidden;
}

.connection-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: var(--radius-md);
  background: var(--surface-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  overflow: hidden;
}

.connection-details {
  display: flex;
  flex-direction: column;
}

.connection-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9375rem;
}

.connection-id {
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Empty state with Mila */
.empty-state {
  text-align: center;
  padding: var(--space-xl) 0;
}

.empty-state img {
  width: 80px;
  height: 80px;
  opacity: 0.35;
  filter: grayscale(100%);
  margin-bottom: var(--space-md);
}

.empty-state p {
  color: var(--on-surface-variant);
  font-size: 0.9375rem;
}

/* ---------- Auth Pages ---------- */
.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-ambient);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.auth-header img {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-lg);
}

.auth-header h1 {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.auth-header p {
  color: var(--on-surface-variant);
  font-size: 0.9375rem;
}

.auth-footer {
  text-align: center;
  margin-top: var(--space-lg);
  font-size: 0.9375rem;
  color: var(--on-surface-variant);
}

.auth-footer a {
  color: var(--primary);
  font-weight: 500;
  text-decoration: none;
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* ---------- Settings / Billing / Connect Pages ---------- */
.page-card {
  max-width: 560px;
  margin: 0 auto;
  padding-bottom: var(--space-2xl);
}

.page-card .card + .card {
  margin-top: var(--space-lg);
}

.page-section + .page-section {
  margin-top: var(--space-xl);
}

/* Usage bar */
.usage-bar-track {
  width: 100%;
  height: 8px;
  background: var(--surface-container-low);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-top: var(--space-sm);
}

.usage-bar-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

.usage-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  margin-top: var(--space-xs);
}

/* Connect code display */
.verification-code {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-align: center;
  color: var(--primary);
  padding: var(--space-lg);
  background: var(--surface-container-low);
  border-radius: var(--radius-xl);
  margin: var(--space-lg) 0;
}

.code-hint {
  text-align: center;
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

/* ---------- Price Tag ---------- */
.price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
}

.price-period {
  font-size: 1rem;
  font-weight: 400;
  color: var(--on-surface-variant);
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.text-muted { color: var(--on-surface-variant); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

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

.faq-section {
  padding: var(--space-3xl) 0;
}

.faq-section h2 {
  margin-bottom: var(--space-xl);
}

.text-center {
  text-align: center;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.faq-item {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--outline-variant);
  transition: border-color 0.2s;
}

.faq-item[open] {
  border-color: var(--primary);
}

.faq-item summary {
  padding: var(--space-lg) var(--space-xl);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--on-surface-variant);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: '−';
  color: var(--primary);
}

.faq-item p {
  padding: 0 var(--space-xl) var(--space-lg);
  color: var(--on-surface-variant);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 768px) {
  .display-lg {
    font-size: 2.25rem;
  }

  .display-md {
    font-size: 1.75rem;
  }

  .hero {
    padding: var(--space-2xl) 0;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: var(--space-md);
  }

  .stat-row {
    flex-direction: column;
    gap: var(--space-md);
  }

  .auth-card {
    padding: var(--space-xl);
  }

  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary, .btn-secondary, .btn-outline {
    text-align: center;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1.5px solid var(--outline-variant);
  padding: var(--space-xl) 0;
  margin-top: var(--space-3xl);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--on-surface);
}

.footer-brand img {
  border-radius: var(--radius-sm);
}

.footer-links {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-copy {
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
}

/* ---------- Legal Pages ---------- */
.legal-page {
  max-width: 780px;
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

.legal-page h1 {
  margin-bottom: var(--space-sm);
}

.legal-meta {
  color: var(--on-surface-variant);
  font-size: 0.875rem;
  margin-bottom: var(--space-2xl);
}

.legal-page h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--on-surface);
}

.legal-page h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.legal-page p {
  margin-bottom: var(--space-md);
  color: var(--on-surface-variant);
  line-height: 1.7;
}

.legal-page ul {
  margin-bottom: var(--space-md);
  padding-left: var(--space-xl);
}

.legal-page li {
  color: var(--on-surface-variant);
  line-height: 1.7;
  margin-bottom: var(--space-xs);
}

.legal-page a {
  color: var(--primary);
  text-decoration: none;
}

.legal-page a:hover {
  text-decoration: underline;
}

@media (max-width: 480px) {
  .nav-links {
    gap: var(--space-sm);
  }

  .nav-links a {
    font-size: 0.8125rem;
  }

  .container {
    padding: 0 var(--space-md);
  }
}