/* ==========================================================================
   Doc-Seal — Landing page
   Palette bleu marine professionnelle (juridique).
   ========================================================================== */

:root {
  --navy-900: #0a1f3d;
  --navy-800: #122d54;
  --navy-700: #16345e;
  --navy-600: #1a3e6d;
  --navy-500: #1d4878;
  --navy-400: #2c66a8;
  --navy-300: #4a83c7;
  --navy-100: #e1ebf6;
  --navy-50: #f3f7fc;

  --gold-500: #c9a961;
  --gold-400: #d8be83;
  --gold-100: #f5edd9;

  --white: #ffffff;
  --off-white: #f7f9fc;
  --border: #e1e7ef;
  --border-strong: #cdd6e3;

  --text: #0f1929;
  --text-soft: #2a384e;
  --text-muted: #5a6678;
  --text-on-navy: #e6eef9;

  --shadow-sm: 0 1px 3px rgba(10, 31, 61, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 31, 61, 0.08);
  --shadow-lg: 0 24px 48px rgba(10, 31, 61, 0.16);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    Roboto, "Noto Sans", Arial, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }

a {
  color: var(--navy-500);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover { color: var(--navy-700); }

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease,
    color 0.15s ease, transform 0.04s ease;
  white-space: nowrap;
}
.btn-lg { padding: 15px 26px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--navy-500);
  color: var(--white);
  border-color: var(--navy-500);
}
.btn-primary:hover {
  background: var(--navy-700);
  border-color: var(--navy-700);
  color: var(--white);
}
.btn-primary:active { transform: translateY(1px); }

.btn-ghost {
  background: transparent;
  color: var(--navy-500);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  background: var(--navy-50);
  color: var(--navy-700);
  border-color: var(--navy-300);
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--navy-900);
  font-size: 18px;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--navy-700); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.nav-links a {
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: 6px;
}
.nav-links a:hover { color: var(--navy-700); background: var(--navy-50); }
.nav-links .btn { padding: 9px 16px; font-size: 14px; }
.nav-links .btn-primary { color: var(--white); }
.nav-links .btn-ghost { color: var(--navy-500); }
.nav-links .btn-primary:hover { background: var(--navy-700); color: var(--white); }
.nav-links .btn-ghost:hover { background: var(--navy-50); color: var(--navy-700); }

@media (max-width: 760px) {
  .nav-links a:not(.btn) { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 64px 0 88px;
  background: linear-gradient(180deg, var(--navy-50) 0%, var(--white) 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 0% 0%, rgba(29, 72, 120, 0.06), transparent 50%),
    radial-gradient(circle at 100% 0%, rgba(201, 169, 97, 0.07), transparent 45%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
}
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 48px 0 64px; }
}
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy-500);
  background: var(--navy-100);
  padding: 6px 12px;
  border-radius: 999px;
  margin: 0 0 18px;
}
.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--navy-900);
}
.lede {
  margin: 0 0 28px;
  font-size: 18px;
  color: var(--text-soft);
  max-width: 560px;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--text-muted);
}
.hero-trust li {
  position: relative;
  padding-left: 18px;
}
.hero-trust li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--gold-500);
  font-weight: 700;
}

/* Hero visual seal card */
.hero-visual { display: flex; justify-content: center; }
.seal-card {
  width: 100%;
  max-width: 380px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.seal-card::after {
  content: "";
  position: absolute;
  top: -10px;
  right: -10px;
  bottom: -10px;
  left: -10px;
  border-radius: calc(var(--radius-lg) + 10px);
  background: linear-gradient(135deg, rgba(29, 72, 120, 0.08), rgba(201, 169, 97, 0.05));
  z-index: -1;
}
.seal-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--navy-700);
  text-transform: uppercase;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.seal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 0 3px var(--gold-100);
}
.seal-card-body {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  margin: 0 0 20px;
  font-size: 13px;
}
.seal-card-body dt {
  color: var(--text-muted);
  font-weight: 500;
}
.seal-card-body dd {
  margin: 0;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}
.seal-card-body code {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--navy-50);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--navy-700);
}
.seal-status { color: #047857 !important; }
.seal-card-qr {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px;
  background: var(--navy-50);
  border-radius: var(--radius);
  border: 1px dashed var(--border-strong);
}
.seal-card-qr p {
  margin: 0;
  font-size: 13px;
  color: var(--text-soft);
  font-weight: 500;
}

/* ---------- Section base ---------- */
section { padding: 80px 0; }
section h2 {
  margin: 0 0 12px;
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--navy-900);
}
@media (max-width: 600px) {
  section { padding: 56px 0; }
}

/* ---------- Piliers ---------- */
.piliers { background: var(--white); }
.piliers h2 { max-width: 720px; }
.piliers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
@media (max-width: 880px) {
  .piliers-grid { grid-template-columns: 1fr; }
}
.pilier {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.pilier:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.pilier-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--navy-100);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.pilier h3 {
  margin: 0 0 10px;
  font-size: 19px;
  color: var(--navy-900);
  font-weight: 700;
}
.pilier p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
}

/* ---------- Comment ça marche ---------- */
.how {
  background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
  color: var(--text-on-navy);
}
.how h2 { color: var(--white); }
.how-lede {
  margin: 0 0 40px;
  font-size: 17px;
  color: rgba(230, 238, 249, 0.78);
}
.how-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: step;
}
@media (max-width: 880px) {
  .how-steps { grid-template-columns: 1fr; }
}
.how-steps li {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 26px;
  position: relative;
}
.how-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--gold-400);
  margin-bottom: 10px;
}
.how-steps h3 {
  margin: 0 0 8px;
  color: var(--white);
  font-size: 19px;
  font-weight: 700;
}
.how-steps p {
  margin: 0;
  color: rgba(230, 238, 249, 0.85);
  font-size: 15px;
}

/* ---------- Pricing ---------- */
.pricing { background: var(--off-white); }
.pricing-lede {
  margin: 0 0 40px;
  color: var(--text-soft);
  font-size: 17px;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  align-items: stretch;
}
@media (max-width: 920px) {
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}
.plan {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.plan:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.plan-featured {
  border-color: var(--navy-500);
  background: linear-gradient(180deg, var(--white) 0%, var(--navy-50) 100%);
  box-shadow: var(--shadow-md);
}
.plan-featured:hover {
  box-shadow: var(--shadow-lg);
}
.plan-badge {
  display: inline-block;
  background: var(--gold-500);
  color: var(--navy-900);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  margin: 0 0 8px;
}
.plan h3 {
  margin: 0 0 4px;
  font-size: 18px;
  color: var(--navy-900);
  font-weight: 700;
}
.plan-price {
  margin: 8px 0 4px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.plan-amount {
  font-size: 38px;
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -0.01em;
}
.plan-period { color: var(--text-muted); font-size: 14px; }
.plan-tagline { margin: 0; color: var(--text-muted); font-size: 14px; }
.plan-features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  flex: 1;
}
.plan-features li {
  position: relative;
  padding-left: 24px;
  font-size: 14.5px;
  color: var(--text-soft);
}
.plan-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: var(--navy-100);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'><path fill='none' stroke='%231d4878' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' d='M3 7l3 3 5-6'/></svg>");
  background-size: 12px 12px;
  background-position: center;
  background-repeat: no-repeat;
}
.pricing-note {
  margin: 32px 0 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* ---------- CTA ---------- */
.cta {
  background: var(--white);
  border-top: 1px solid var(--border);
}
.cta-row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  gap: 28px;
  align-items: center;
  padding: 24px;
  background: var(--navy-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--navy-100);
}
@media (max-width: 720px) {
  .cta-row { grid-template-columns: 1fr; }
}
.cta h2 {
  margin: 0 0 6px;
  font-size: clamp(22px, 2.6vw, 28px);
}
.cta p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--navy-900);
  color: var(--text-on-navy);
  padding: 56px 0 32px;
}
.footer .brand { color: var(--white); }
.footer .brand:hover { color: var(--white); }
.footer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
}
.footer-baseline {
  margin: 12px 0 0;
  color: rgba(230, 238, 249, 0.7);
  font-size: 14px;
  max-width: 320px;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}
.footer-nav a {
  color: rgba(230, 238, 249, 0.85);
  font-size: 14px;
  font-weight: 500;
}
.footer-nav a:hover { color: var(--white); }
.footer-legal {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12px;
  color: rgba(230, 238, 249, 0.6);
}
.footer-legal p { margin: 0; }