/* ==========================================================================
   Design system — Solaire Éditorial
   Tokens · shell · header/footer · buttons · modal · form primitives
   ========================================================================== */

:root {
  /* Couleurs — palette navy profond + ambre chaud sur fond crème */
  --color-ink:            #0e1a2b;
  --color-primary:        #1e3a5f;
  --color-primary-dark:   #152a45;
  --color-primary-light:  #eaf0f6;
  --color-accent:         #c48b17;
  --color-accent-dark:    #a67213;
  --color-accent-light:   #faf1de;
  --color-success:        #0f7c5c;
  --color-success-light:  #e6f3ee;
  --color-error:          #c53030;

  --color-text:           #1c2432;
  --color-text-muted:     #5c6578;
  --color-text-subtle:    #8a92a3;

  --color-border:         #e4e6ec;
  --color-border-strong:  #cfd3dc;

  --color-bg:             #f5f5f2;
  --color-surface:        #fbfbf8;
  --color-surface-alt:    #f0efeb;
  --color-white:          #ffffff;

  /* Rayons */
  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  /* Ombres */
  --shadow-xs:   0 1px 2px rgba(14, 26, 43, 0.05);
  --shadow-sm:   0 1px 3px rgba(14, 26, 43, 0.06), 0 1px 2px rgba(14, 26, 43, 0.04);
  --shadow:      0 4px 12px rgba(14, 26, 43, 0.06), 0 2px 4px rgba(14, 26, 43, 0.04);
  --shadow-lg:   0 12px 28px rgba(14, 26, 43, 0.1), 0 4px 10px rgba(14, 26, 43, 0.06);
  --shadow-xl:   0 24px 48px rgba(14, 26, 43, 0.14), 0 8px 16px rgba(14, 26, 43, 0.08);
  --shadow-focus: 0 0 0 3px rgba(30, 58, 95, 0.18);

  /* Typographie */
  --font:         'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono:    ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Motion */
  --ease:         cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out:     cubic-bezier(0.2, 0.7, 0.3, 1);
  --dur-fast:     150ms;
  --dur:          220ms;
  --dur-slow:     380ms;
}

/* ---------- Reset & base ---------- */

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.hidden { display: none !important; }

.container {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Protocol banner ---------- */

.protocol-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  background: var(--color-accent-light);
  border-bottom: 1px solid color-mix(in srgb, var(--color-accent) 40%, transparent);
  color: var(--color-accent-dark);
  padding: 0.6rem 1rem;
  font-size: 0.82rem;
  text-align: center;
}

.protocol-banner code {
  background: rgba(0, 0, 0, 0.06);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.protocol-banner a { color: var(--color-accent-dark); font-weight: 600; }

/* ---------- Header ---------- */

.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 60px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.15rem;
  height: 2.15rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
}

.logo-icon svg { width: 1.15rem; height: 1.15rem; }

.header-tagline {
  font-size: 0.78rem;
  color: var(--color-text-subtle);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.header-phone {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  transition: all var(--dur) var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

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

/* ---------- Main / Card shell ---------- */

.main-content {
  padding: 2rem 0 4rem;
}

.simulator-card {
  max-width: 980px;
  margin: 0 auto;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
  letter-spacing: -0.005em;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn-lg {
  padding: 0.9rem 1.6rem;
  font-size: 0.98rem;
}

.btn-sm {
  padding: 0.5rem 0.9rem;
  font-size: 0.84rem;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  box-shadow: 0 1px 2px rgba(14, 26, 43, 0.15);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(30, 58, 95, 0.28);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(14, 26, 43, 0.15);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-ink);
}

.btn-block {
  width: 100%;
  margin-top: 1rem;
}

/* ---------- Form primitives ---------- */

.input-label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.005em;
}

.req {
  color: var(--color-accent);
  font-weight: 700;
  margin-left: 0.15rem;
}

input[type='text'],
input[type='email'],
input[type='tel'],
input[type='number'],
textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

textarea { resize: vertical; min-height: 5rem; }

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

input.invalid,
input[aria-invalid='true'] {
  border-color: var(--color-error);
}

.input-suffix--full {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.input-suffix--full input { flex: 1; }

.suffix {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  font-weight: 500;
}

.form-error {
  margin-top: 0.75rem;
  padding: 0.7rem 0.9rem;
  background: color-mix(in srgb, var(--color-error) 8%, #fff);
  color: var(--color-error);
  border-radius: var(--radius-sm);
  border: 1px solid color-mix(in srgb, var(--color-error) 25%, transparent);
  font-size: 0.86rem;
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.form-error.visible { opacity: 1; }
.form-error:empty  { display: none; }

/* ---------- Footer ---------- */

.site-footer {
  padding: 2.25rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  margin-top: 3rem;
  background: var(--color-white);
}

.site-footer p { margin: 0.35rem 0; }

.site-footer a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.site-footer a:hover { border-bottom-color: var(--color-primary); }

/* ---------- Modal (lead form) ---------- */

.lead-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: modalFade var(--dur-slow) var(--ease-out);
}

.lead-modal.hidden { display: none !important; }

.lead-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(14, 26, 43, 0.55);
  backdrop-filter: blur(6px);
}

.lead-modal-card {
  position: relative;
  width: 100%;
  max-width: 540px;
  max-height: 92vh;
  overflow-y: auto;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-xl);
  animation: modalSlide var(--dur-slow) var(--ease-out);
}

.lead-modal-close {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  width: 2rem;
  height: 2rem;
  border: none;
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--dur) var(--ease);
}

.lead-modal-close:hover {
  background: var(--color-primary);
  color: #fff;
}

.lead-modal-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.015em;
  padding-right: 2rem;
}

.lead-modal-sub {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.lead-modal-privacy {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  margin: 0 0 1.5rem;
  padding: 0.85rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.unlock-form .form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.unlock-form .input-group.span-2 { grid-column: span 2; }

.consent-check {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  margin: 1rem 0 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  cursor: pointer;
}

.consent-check input {
  width: auto;
  margin: 0.15rem 0 0;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

@keyframes modalFade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes modalSlide {
  from { transform: translateY(20px) scale(0.98); opacity: 0; }
  to   { transform: translateY(0)      scale(1);    opacity: 1; }
}

/* ---------- Reveal animation (subtle) ---------- */

.reveal-on-load {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}

.reveal-on-load.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

@media (max-width: 640px) {
  .container { padding: 0 1rem; }

  .header-tagline { display: none; }

  .main-content { padding: 1rem 0 2rem; }

  .simulator-card { border-radius: var(--radius-lg); }

  .unlock-form .form-grid { grid-template-columns: 1fr; }
  .unlock-form .input-group.span-2 { grid-column: span 1; }

  .lead-modal-card { padding: 1.5rem 1.25rem; }
}