/* ============================================================
   BridgeToG — feuille de style principale
   Palette : navy #071224 · bleu logo #3D6BE0 · cyan #2FD4E8
             orange #F2762E · papier #F7F9FC
   Typo    : Chakra Petch (display) · IBM Plex Sans (texte)
             IBM Plex Mono (labels)
   ============================================================ */

:root {
  --navy-950: #071224;
  --navy-900: #0b1b36;
  --navy-800: #122a4f;
  --blue-600: #3d6be0;
  --blue-500: #4f7ceb;
  --cyan-400: #2fd4e8;
  --cyan-300: #6ce4f2;
  --orange-500: #f2762e;
  --paper: #f7f9fc;
  --white: #ffffff;
  --ink: #14213a;
  --ink-soft: #4a5878;
  --line: #dde5f0;
  --line-dark: rgba(108, 228, 242, 0.14);

  --font-display: "Chakra Petch", "Trebuchet MS", sans-serif;
  --font-body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 12px 32px rgba(7, 18, 36, 0.10);
  --shadow-lift: 0 18px 44px rgba(7, 18, 36, 0.16);
  --wrap: 1140px;
  --header-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--blue-600); }

:focus-visible {
  outline: 3px solid var(--cyan-400);
  outline-offset: 2px;
  border-radius: 4px;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--navy-950);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  z-index: 200;
}
.skip-link:focus { left: 8px; }

/* ---------- typographie ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--blue-600);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-400), var(--blue-600));
  border-radius: 2px;
}
.on-dark .eyebrow { color: var(--cyan-300); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--navy-950);
}

h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.35rem); margin: 14px 0 16px; }
h3 { font-size: 1.18rem; }

.section-intro {
  max-width: 640px;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.accent {
  background: linear-gradient(92deg, var(--cyan-400) 0%, var(--blue-500) 85%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- boutons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.btn svg { flex: none; }

.btn-primary {
  background: var(--blue-600);
  color: #fff;
  box-shadow: 0 8px 22px rgba(61, 107, 224, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(61, 107, 224, 0.45); }

.btn-ghost {
  background: transparent;
  color: var(--navy-950);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--blue-600); color: var(--blue-600); }

.on-dark .btn-ghost { color: #eaf2ff; border-color: rgba(234, 242, 255, 0.3); }
.on-dark .btn-ghost:hover { border-color: var(--cyan-400); color: var(--cyan-300); }

/* ---------- header ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  background: rgba(7, 18, 36, 0.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease;
}
.site-header.scrolled { border-bottom-color: var(--line-dark); }

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.32rem;
  letter-spacing: 0.01em;
  color: #fff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand .tog { color: var(--cyan-400); }
.brand-mark { flex: none; }

.main-nav { margin-left: auto; }
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 26px;
}
.main-nav a {
  color: #c8d6ee;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.main-nav a:hover { color: var(--cyan-300); }

.lang-menu { position: relative; }

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #c8d6ee;
  background: none;
  border: 1px solid rgba(200, 214, 238, 0.25);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.lang-btn:hover { color: #fff; border-color: var(--cyan-400); }
.lang-btn svg { flex: none; }
.lang-btn .chev { transition: transform 0.2s ease; }
.lang-menu.open .lang-btn { color: #fff; border-color: var(--cyan-400); }
.lang-menu.open .chev { transform: rotate(180deg); }

.lang-list {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 176px;
  margin: 0;
  padding: 7px;
  list-style: none;
  background: var(--navy-900);
  border: 1px solid var(--line-dark);
  border-radius: 12px;
  box-shadow: 0 18px 44px rgba(3, 8, 18, 0.55);
  display: none;
  z-index: 130;
}
.lang-menu.open .lang-list { display: block; }

.lang-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 12px;
  border-radius: 8px;
  color: #c8d6ee;
  text-decoration: none;
  font-size: 0.92rem;
  transition: background 0.15s ease, color 0.15s ease;
}
.lang-list a:hover { background: rgba(47, 212, 232, 0.08); color: #fff; }
.lang-list a .code {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: #7e93b8;
}
.lang-list a[aria-current="true"] { color: var(--cyan-300); }
.lang-list a[aria-current="true"] .code { color: var(--cyan-300); }

.header-cta { padding: 10px 20px; font-size: 0.9rem; }

.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid rgba(200, 214, 238, 0.3);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  cursor: pointer;
}
.nav-toggle .bars,
.nav-toggle .bars::before,
.nav-toggle .bars::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: #eaf2ff;
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle .bars { position: relative; }
.nav-toggle .bars::before { position: absolute; top: -6px; }
.nav-toggle .bars::after { position: absolute; top: 6px; }
.nav-open .nav-toggle .bars { background: transparent; }
.nav-open .nav-toggle .bars::before { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle .bars::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- hero ---------- */

.hero {
  position: relative;
  background:
    radial-gradient(1100px 520px at 78% 18%, rgba(47, 212, 232, 0.12), transparent 60%),
    radial-gradient(900px 500px at 12% 88%, rgba(61, 107, 224, 0.18), transparent 55%),
    var(--navy-950);
  color: #eaf2ff;
  padding: calc(var(--header-h) + 72px) 0 0;
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108, 228, 242, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 228, 242, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, black 30%, transparent 75%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 780px;
}

.hero h1 { color: #fff; margin: 18px 0 20px; min-height: 2.35em; }

/* machine à écrire du hero */
.typed-caret {
  display: inline-block;
  width: 3px;
  height: 0.92em;
  margin-left: 7px;
  vertical-align: -0.08em;
  background: var(--cyan-400);
  animation: caret-blink 1.05s steps(1) infinite;
}
@keyframes caret-blink { 50% { opacity: 0; } }

.hero-sub {
  font-size: 1.16rem;
  color: #b9c9e4;
  max-width: 600px;
  margin-bottom: 34px;
}

.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 44px; }

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  padding: 0;
  list-style: none;
  font-size: 0.92rem;
  color: #9fb3d4;
}
.hero-badges li { display: inline-flex; align-items: center; gap: 9px; }
.hero-badges svg { flex: none; color: var(--cyan-400); }

/* le pont — signature */
.hero-bridge {
  position: relative;
  display: block;
  width: 100%;
  margin-top: 26px;
}
.hero-bridge svg { width: 100%; height: auto; display: block; }

.data-path {
  stroke-dasharray: 4 10;
  animation: data-flow 2.6s linear infinite;
}
@keyframes data-flow {
  to { stroke-dashoffset: -140; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .data-path { animation: none; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .btn:hover { transform: none; }
  .typed-caret { display: none; }
}

/* ---------- sections génériques ---------- */

.section { padding: 96px 0; }
.section-head { margin-bottom: 52px; }

.section-paper { background: var(--paper); }

.section-dark {
  background:
    radial-gradient(900px 420px at 85% 10%, rgba(47, 212, 232, 0.08), transparent 60%),
    var(--navy-950);
  color: #d7e2f5;
}
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark .section-intro { color: #a7b8d6; }

/* révélations au scroll */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ---------- services ---------- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px 30px;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.service-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan-400), var(--blue-600));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: transparent;
}
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(47, 212, 232, 0.12), rgba(61, 107, 224, 0.12));
  display: grid;
  place-items: center;
  color: var(--blue-600);
  margin-bottom: 20px;
}

.service-card h3 { margin-bottom: 10px; }
.service-card p { color: var(--ink-soft); font-size: 0.99rem; }

/* ---------- méthode (pont suspendu) ---------- */

.method-bridge { margin: 10px 0 34px; }
.method-bridge svg { width: 100%; height: auto; display: block; }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.step-card {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  padding: 26px 22px;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--cyan-400);
  display: block;
  margin-bottom: 12px;
}

.step-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.step-card p { font-size: 0.94rem; color: #a7b8d6; }

.step-deliverable {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-dark);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: #7e93b8;
}
.step-deliverable strong { color: var(--cyan-300); font-weight: 500; }

/* pourquoi BridgeToG */
.why-strip {
  margin-top: 58px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  padding-top: 46px;
  border-top: 1px solid var(--line-dark);
}
.why-item { display: flex; gap: 14px; align-items: flex-start; }
.why-item svg { flex: none; color: var(--orange-500); margin-top: 3px; }
.why-item h3 { font-size: 0.99rem; margin-bottom: 4px; }
.why-item p { font-size: 0.88rem; color: #a7b8d6; }

.tech-badges {
  margin-top: 46px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
}
.tech-badges li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #b9c9e4;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  padding: 7px 15px;
}

/* ---------- à propos ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 64px;
  align-items: center;
}

.about-photo {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background:
    radial-gradient(360px 300px at 70% 20%, rgba(47, 212, 232, 0.18), transparent 65%),
    linear-gradient(160deg, var(--navy-800), var(--navy-950));
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
}
.about-photo img { width: 100%; height: 100%; object-fit: cover; }
.about-photo .photo-placeholder {
  color: #7e93b8;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-align: center;
  padding: 20px;
}
.about-photo::after {
  content: "";
  position: absolute;
  inset: auto auto 14px 14px;
  width: 46px;
  height: 46px;
  border-left: 3px solid var(--cyan-400);
  border-bottom: 3px solid var(--cyan-400);
  border-radius: 0 0 0 10px;
  opacity: 0.85;
}

.about-body p { color: var(--ink-soft); margin-bottom: 16px; }
.about-body p strong { color: var(--ink); }

.about-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--navy-950);
  margin-top: 26px;
}
.about-role {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-600);
}

/* ---------- contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 64px;
  align-items: start;
}

.contact-channels { list-style: none; margin-top: 30px; display: grid; gap: 18px; }
.contact-channels li { display: flex; align-items: flex-start; gap: 14px; }
.contact-channels svg { flex: none; color: var(--blue-600); margin-top: 4px; }
.contact-channels .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: block;
}
.contact-channels a { color: var(--navy-950); font-weight: 600; text-decoration: none; }
.contact-channels a:hover { color: var(--blue-600); }

.contact-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 38px 34px;
  box-shadow: var(--shadow);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { margin-bottom: 18px; }

.form-field label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 7px;
  color: var(--navy-950);
}
.form-field .req { color: var(--orange-500); }

.form-field input,
.form-field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--blue-600);
  box-shadow: 0 0 0 3px rgba(61, 107, 224, 0.15);
}
.form-field textarea { min-height: 130px; resize: vertical; }

.consent {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  font-size: 0.86rem;
  color: var(--ink-soft);
  margin: 4px 0 22px;
}
.consent input {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--blue-600);
  flex: none;
}

.form-note {
  margin-top: 16px;
  font-size: 0.82rem;
  color: var(--ink-soft);
}


/* ---------- footer ---------- */

.site-footer {
  background: var(--navy-950);
  color: #9fb3d4;
  padding: 64px 0 28px;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line-dark);
}

.footer-brand .brand { font-size: 1.2rem; }
.footer-brand p { margin-top: 14px; max-width: 300px; font-size: 0.9rem; }

.footer-col h3 {
  color: #fff;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; display: grid; gap: 10px; }
.footer-col a { color: #9fb3d4; text-decoration: none; }
.footer-col a:hover { color: var(--cyan-300); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
  align-items: center;
  padding-top: 26px;
  font-size: 0.82rem;
}

.footer-social { display: inline-flex; gap: 14px; }
.footer-social a { color: #9fb3d4; }
.footer-social a:hover { color: var(--cyan-300); }

/* ---------- page de remerciement ---------- */

.thanks-main {
  min-height: calc(100vh - var(--header-h));
  display: grid;
  place-items: center;
  padding: calc(var(--header-h) + 48px) 24px 80px;
  background:
    radial-gradient(700px 420px at 50% 20%, rgba(47, 212, 232, 0.10), transparent 60%),
    var(--navy-950);
}

.thanks-card {
  text-align: center;
  max-width: 560px;
}

.thanks-icon {
  width: 84px;
  height: 84px;
  margin: 0 auto 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(47, 212, 232, 0.18), rgba(61, 107, 224, 0.18));
  border: 1px solid var(--line-dark);
  color: var(--cyan-400);
}

.thanks-card h1 {
  color: #fff;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  margin-bottom: 14px;
}

.thanks-card p {
  color: #a7b8d6;
  margin-bottom: 32px;
}

/* ---------- pages légales ---------- */

.legal-main {
  padding: calc(var(--header-h) + 64px) 0 90px;
}
.legal-main h1 { margin-bottom: 10px; }
.legal-updated {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-bottom: 42px;
}
.legal-main h2 {
  font-size: 1.3rem;
  margin: 40px 0 12px;
}
.legal-main p, .legal-main li { color: var(--ink-soft); margin-bottom: 10px; max-width: 760px; }
.legal-main ul { padding-left: 22px; }
.legal-main .placeholder {
  background: rgba(242, 118, 46, 0.12);
  border-radius: 4px;
  padding: 1px 6px;
  color: #b3541a;
  font-weight: 600;
}

/* ---------- responsive ---------- */

@media (max-width: 960px) {
  .services-grid { grid-template-columns: 1fr; }
  .steps-grid, .why-strip { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-photo { max-width: 380px; }
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .section { padding: 72px 0; }

  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--navy-950);
    border-bottom: 1px solid var(--line-dark);
    padding: 18px 24px 26px;
    display: none;
  }
  .nav-open .main-nav { display: block; }
  .main-nav ul { flex-direction: column; gap: 18px; }
  .main-nav a { font-size: 1.05rem; }
  .header-cta { display: none; }

  .hero { padding-top: calc(var(--header-h) + 48px); }
  .hero-ctas .btn { width: 100%; justify-content: center; }

  .steps-grid, .why-strip { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}