:root {
  --navy: #002B5C;
  --cyan: #00B0FF;
  --violet: #843BFF;
  --yellow: #FFB703;
  --bg: #F7FAFC;
  --card: #FFFFFF;
  --muted: #4a5568;
  /* Improved contrast: 7.0:1 (was 4.2:1) */
  --shadow: 0 10px 30px rgba(0, 0, 0, .06);
  --radius: 20px;
  /* Semantic colors (new) */
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
}

* {
  box-sizing: border-box
}

html,
body {
  height: 100%
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% -10%, rgba(0, 176, 255, .14), transparent 60%),
    radial-gradient(900px 500px at 90% 0%, rgba(132, 59, 255, .12), transparent 55%),
    var(--bg);
  color: var(--navy);
}

a {
  color: inherit
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .72);
  border: 1px solid rgba(0, 0, 0, .06);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none
}

.brand img {
  width: 150px;
  height: auto
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(0, 176, 255, .10);
  border: 1px solid rgba(0, 176, 255, .18);
  color: var(--navy);
  font-weight: 600;
  font-size: 13px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, .10);
  background: white;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .06);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.btn.primary {
  background: linear-gradient(135deg, rgba(0, 176, 255, .9), rgba(132, 59, 255, .9));
  border: 0;
  color: white;
}

.btn.ghost {
  background: rgba(255, 255, 255, .5)
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 22px;
  align-items: center;
  margin-top: 22px;
}

.h1 {
  font-size: 44px;
  line-height: 1.05;
  margin: 0 0 12px
}

.p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 18px
}

.card {
  background: rgba(255, 255, 255, .86);
  border: 1px solid rgba(0, 0, 0, .06);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.grid3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px
}

.kpi {
  font-weight: 800
}

.small {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5
}

.hr {
  height: 1px;
  background: rgba(0, 0, 0, .06);
  margin: 14px 0
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 14px
}

.step {
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(0, 0, 0, .06);
  background: rgba(255, 255, 255, .7)
}

.step b {
  display: block;
  margin-bottom: 6px
}

.pricing {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px
}

.price {
  font-size: 34px;
  font-weight: 900;
  margin: 6px 0
}

.list {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6
}

.footer {
  margin: 32px 0 10px;
  color: var(--muted);
  font-size: 13px
}

@media (max-width: 920px) {
  .hero {
    grid-template-columns: 1fr
  }

  .grid3,
  .pricing,
  .steps {
    grid-template-columns: 1fr
  }

  .h1 {
    font-size: 36px
  }
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, .12);
  background: rgba(255, 255, 255, .9);
  font-size: 14px;
}

textarea {
  min-height: 140px;
  resize: vertical
}

/* ============================================
   FOCUS STATES (Accessibility)
   ============================================ */
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
  border-color: var(--cyan);
}

button:focus-visible,
.btn:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

a:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(0, 176, 255, .2);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ============================================
   ERROR STATES
   ============================================ */
input:invalid:not(:placeholder-shown),
textarea:invalid:not(:placeholder-shown) {
  border-color: var(--error);
  background: rgba(239, 68, 68, 0.05);
}

.error-message {
  color: var(--error);
  font-size: 13px;
  margin-top: 4px;
  display: none;
}

input:invalid+.error-message,
textarea:invalid+.error-message {
  display: block;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px
}

@media(max-width: 720px) {
  .row {
    grid-template-columns: 1fr
  }
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: 360px;
  z-index: 50
}

.toast .card {
  padding: 12px 14px
}

.progress {
  height: 10px;
  background: rgba(0, 0, 0, .08);
  border-radius: 999px;
  overflow: hidden
}

.progress>div {
  height: 100%;
  background: linear-gradient(90deg, rgba(0, 176, 255, .95), rgba(255, 183, 3, .95));
  width: 0%
}


/* ===========================
   Sylvie hero + badge (warm pro)
   =========================== */
.sylvie-hero {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  background: #fff;
}

.sylvie-avatar {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  object-fit: cover;
}

.sylvie-title-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.sylvie-hero h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: #111827;
}

.sylvie-sub {
  margin: 6px 0 0;
  color: #374151;
}

.ai-badge {
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  color: #111827;
  background: #f9fafb;
}

/* ===========================
   Modal (transparence IA)
   =========================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(17, 24, 39, .55);
  padding: 18px;
}

.modal-card {
  width: min(560px, 96vw);
  background: #fff;
  border-radius: 16px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .18);
  padding: 16px;
}

.modal-title {
  font-weight: 900;
  font-size: 16px;
  color: #111827;
}

.modal-text {
  margin-top: 8px;
  color: #374151;
  line-height: 1.45;
}

.modal-link {
  color: var(--primary, #002B5C);
  text-decoration: underline;
}

.modal-check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 12px;
  color: #111827;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 14px;
}