/* ============================================================
   ZUA COM+ — Design System
   Bleu azur · Material · Startup tech communication & argent
   ============================================================ */

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

/* ─── Variables Design Tokens ──────────────────────────────── */
:root {
  /* Bleu azur — couleur principale */
  --zua-blue-50:  #E8F4FF;
  --zua-blue-100: #C0DCFB;
  --zua-blue-200: #8ABEF5;
  --zua-blue-400: #3B8EE8;
  --zua-blue-500: #1A6BCC;
  --zua-blue-600: #1558AA;
  --zua-blue-800: #0C3D7A;
  --zua-blue-900: #071F3E;

  /* Or — argent, profit, conversion */
  --zua-gold-400: #EF9F27;
  --zua-gold-500: #D4880F;
  --zua-gold-100: #FDF3DC;

  /* Succès vert */
  --zua-green-500: #1D9E75;
  --zua-green-100: #E1F5EE;

  /* Danger rouge */
  --zua-red-500:   #E24B4A;
  --zua-red-100:   #FCEBEB;

  /* Gris neutres */
  --zua-gray-50:   #F8F9FC;
  --zua-gray-100:  #F0F2F7;
  --zua-gray-200:  #E2E6EF;
  --zua-gray-400:  #8892A4;
  --zua-gray-600:  #4A5568;
  --zua-gray-800:  #1A202C;
  --zua-gray-900:  #0D1117;

  /* Typographie */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;

  /* Espacements */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;
  --radius-full: 9999px;

  /* Ombres */
  --shadow-sm:  0 1px 3px rgba(26,107,204,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 16px rgba(26,107,204,0.12), 0 2px 4px rgba(0,0,0,0.05);
  --shadow-lg:  0 12px 40px rgba(26,107,204,0.16), 0 4px 8px rgba(0,0,0,0.06);
  --shadow-blue: 0 8px 32px rgba(26,107,204,0.28);

  /* Transitions */
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--zua-gray-800);
  background: var(--zua-gray-50);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }
a   { color: var(--zua-blue-500); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--zua-blue-600); }

/* ─── Typographie ──────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--zua-gray-900);
}

.text-display {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.text-heading-1 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; letter-spacing: -0.02em; }
.text-heading-2 { font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 700; letter-spacing: -0.015em; }
.text-heading-3 { font-size: 1.25rem; font-weight: 600; }
.text-body-lg   { font-size: 1.125rem; line-height: 1.7; }
.text-body      { font-size: 1rem;     line-height: 1.6; }
.text-sm        { font-size: 0.875rem; }
.text-xs        { font-size: 0.75rem;  }

.text-blue   { color: var(--zua-blue-500); }
.text-gold   { color: var(--zua-gold-400); }
.text-muted  { color: var(--zua-gray-400); }
.text-white  { color: #fff; }
.text-center { text-align: center; }

/* ─── Layout ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-sm {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }

/* ─── Navigation ───────────────────────────────────────────── */
.zua-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--zua-gray-200);
  transition: box-shadow var(--transition);
}

.zua-nav.scrolled { box-shadow: var(--shadow-md); }

.zua-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.zua-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--zua-gray-900);
  text-decoration: none;
}

.zua-logo-mark {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--zua-blue-500), var(--zua-blue-800));
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: -0.05em;
}

.zua-nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.zua-nav-links a {
  color: var(--zua-gray-600);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.zua-nav-links a:hover { color: var(--zua-blue-500); }

.zua-nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ─── Boutons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  -webkit-user-select: none;
  user-select: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--zua-blue-500);
  color: #fff;
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover {
  background: var(--zua-blue-600);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 12px 36px rgba(26,107,204,0.36);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent;
  color: var(--zua-blue-500);
  border: 1.5px solid var(--zua-blue-500);
}
.btn-outline:hover {
  background: var(--zua-blue-50);
  color: var(--zua-blue-600);
}

.btn-ghost {
  background: transparent;
  color: var(--zua-gray-600);
  border: 1.5px solid var(--zua-gray-200);
}
.btn-ghost:hover { background: var(--zua-gray-100); color: var(--zua-gray-800); }

.btn-gold {
  background: var(--zua-gold-400);
  color: #fff;
  box-shadow: 0 8px 24px rgba(239,159,39,0.36);
}
.btn-gold:hover {
  background: var(--zua-gold-500);
  color: #fff;
  transform: translateY(-1px);
}

.btn-sm  { padding: 7px 16px; font-size: 0.8rem; }
.btn-lg  { padding: 14px 32px; font-size: 1rem; border-radius: var(--radius-lg); }
.btn-xl  { padding: 18px 40px; font-size: 1.05rem; border-radius: var(--radius-lg); }
.btn-full { width: 100%; }

/* ─── Cards ────────────────────────────────────────────────── */
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--zua-gray-200);
  padding: 24px;
  transition: all var(--transition);
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--zua-blue-200);
}

.card-blue {
  background: var(--zua-blue-500);
  border-color: var(--zua-blue-600);
  color: #fff;
}

.card-gradient {
  background: linear-gradient(135deg, var(--zua-blue-800) 0%, var(--zua-blue-500) 100%);
  color: #fff;
  border: none;
}

/* ─── Badges ───────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-blue   { background: var(--zua-blue-50);  color: var(--zua-blue-600); }
.badge-gold   { background: var(--zua-gold-100); color: var(--zua-gold-500); }
.badge-green  { background: var(--zua-green-100); color: var(--zua-green-500); }
.badge-red    { background: var(--zua-red-100);  color: var(--zua-red-500); }
.badge-gray   { background: var(--zua-gray-100); color: var(--zua-gray-600); }

/* ─── Formulaires ──────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--zua-gray-700, #374151);
  margin-bottom: 6px;
}

.form-label span.required { color: var(--zua-red-500); margin-left: 3px; }

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--zua-gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--zua-gray-800);
  background: #fff;
  transition: all var(--transition);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--zua-blue-500);
  box-shadow: 0 0 0 3px rgba(26,107,204,0.12);
}

.form-input.error,
.form-input:invalid:not(:placeholder-shown) {
  border-color: var(--zua-red-500);
}

.form-error {
  font-size: 0.8rem;
  color: var(--zua-red-500);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--zua-gray-400);
  margin-top: 4px;
}

.input-icon-wrap {
  position: relative;
}
.input-icon-wrap .icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--zua-gray-400);
  pointer-events: none;
}
.input-icon-wrap .form-input { padding-left: 40px; }

/* ─── Grilles ──────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }

/* ─── Utilitaires ──────────────────────────────────────────── */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }

.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }

.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }

.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ─── Séparateur décoratif ─────────────────────────────────── */
.divider-label {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--zua-gray-400);
  font-size: 0.85rem;
  margin: 24px 0;
}
.divider-label::before,
.divider-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--zua-gray-200);
}

/* ─── Alertes ──────────────────────────────────────────────── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
}
.alert-error   { background: var(--zua-red-100);   color: #7B2020; border: 1px solid #F7C1C1; }
.alert-success { background: var(--zua-green-100); color: #0A5040; border: 1px solid #9FE1CB; }
.alert-info    { background: var(--zua-blue-50);   color: var(--zua-blue-800); border: 1px solid var(--zua-blue-200); }
.alert-warning { background: var(--zua-gold-100);  color: #6B4200; border: 1px solid #FAC775; }

/* ─── Loader / Spinner ─────────────────────────────────────── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.spinner-blue {
  border-color: var(--zua-blue-200);
  border-top-color: var(--zua-blue-500);
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Dashboard layout ─────────────────────────────────────── */
.zua-app {
  display: flex;
  min-height: 100vh;
  background: var(--zua-gray-50);
}

.zua-sidebar {
  width: 260px;
  min-width: 260px;
  background: var(--zua-gray-900);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
}

.zua-sidebar-logo {
  padding: 24px 20px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.zua-sidebar-logo .zua-logo { color: #fff; }

.zua-sidebar-nav {
  flex: 1;
  padding: 16px 12px;
}

.zua-nav-section {
  margin-bottom: 24px;
}

.zua-nav-section-title {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  padding: 0 10px;
  margin-bottom: 6px;
}

.zua-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.65);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition);
  margin-bottom: 2px;
  cursor: pointer;
}

.zua-nav-item:hover {
  background: rgba(255,255,255,0.06);
  color: #fff;
}

.zua-nav-item.active {
  background: var(--zua-blue-500);
  color: #fff;
}

.zua-nav-item .nav-icon {
  width: 18px;
  height: 18px;
  opacity: 0.8;
  flex-shrink: 0;
}

.zua-nav-item.active .nav-icon { opacity: 1; }

/* Agent status indicators */
.agent-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  margin-left: auto;
  flex-shrink: 0;
}
.agent-dot.active  { background: #4ade80; box-shadow: 0 0 6px rgba(74,222,128,0.6); animation: pulse-green 2s infinite; }
.agent-dot.idle    { background: var(--zua-gray-400); }
.agent-dot.working { background: var(--zua-gold-400); animation: pulse-gold 1.5s infinite; }

@keyframes pulse-green {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
@keyframes pulse-gold {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

.zua-main {
  flex: 1;
  margin-left: 260px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.zua-topbar {
  background: #fff;
  border-bottom: 1px solid var(--zua-gray-200);
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.zua-content { padding: 32px; flex: 1; }

/* ─── Pricing cards ────────────────────────────────────────── */
.pricing-card {
  background: #fff;
  border-radius: var(--radius-xl);
  border: 1.5px solid var(--zua-gray-200);
  padding: 36px 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.pricing-card.featured {
  border-color: var(--zua-blue-500);
  box-shadow: var(--shadow-blue);
}

.pricing-card.featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--zua-blue-500), var(--zua-gold-400));
}

.pricing-badge {
  position: absolute;
  top: 24px; right: 24px;
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--zua-gray-900);
  letter-spacing: -0.03em;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--zua-gray-400);
}

.pricing-features {
  list-style: none;
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--zua-gray-600);
}

.pricing-features li::before {
  content: '';
  width: 18px; height: 18px;
  background: var(--zua-blue-50);
  border-radius: 50%;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231A6BCC' stroke-width='2.5'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
}

/* ─── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .zua-nav-links { display: none; }
  .zua-sidebar { transform: translateX(-100%); transition: transform var(--transition); }
  .zua-sidebar.open { transform: translateX(0); }
  .zua-main { margin-left: 0; }
  .zua-content { padding: 20px 16px; }
  .section { padding: 64px 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .pricing-card { padding: 24px 20px; }
  .btn-xl { padding: 14px 28px; font-size: 0.95rem; }
}