/* ============================================================
   VOLTI-GO — Feuille de style principale
   Charte : Midnight #0A0F1E · Vert #00C48C · Syne + Inter
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@600;700;800&family=Inter:wght@400;500;600&display=swap');

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

:root {
  --green:      #00C48C;
  --green-dim:  rgba(0,196,140,.13);
  --green-glow: rgba(0,196,140,.22);
  --night:      #0A0F1E;
  --navy:       #0D1526;
  --ink:        #131A2E;
  --slate:      #F2F4F7;
  --card-dark:  rgba(255,255,255,.04);
  --border-d:   rgba(255,255,255,.07);
  --border-l:   rgba(10,15,30,.08);
  --text-inv:   #fff;
  --muted-d:    #8899AA;
  --sub-d:      #445566;
  --r:          12px;
  --max:        1160px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--night);
  color: var(--text-inv);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: var(--green); text-decoration: none; }
a:hover { opacity: .8; }

/* ── TYPOGRAPHY ── */
.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 12px;
}

.display {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: clamp(28px, 4vw, 46px);
  letter-spacing: -.015em;
  line-height: 1.1;
  color: var(--text-inv);
}

.h2 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 28px);
  letter-spacing: -.012em;
  line-height: 1.2;
  color: var(--text-inv);
  margin-bottom: 4px;
}

.h2-en {
  font-family: 'Syne', sans-serif;
  font-weight: 600;
  font-size: clamp(14px, 1.8vw, 18px);
  color: var(--sub-d);
  margin-bottom: 32px;
}

.body-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-d);
}

.body-text .en {
  display: block;
  margin-top: 10px;
}

/* ── LAYOUT ── */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 40px;
}

.section {
  padding: 80px 0;
}

.section-navy  { background: var(--navy); }
.section-ink   { background: var(--ink); }
.section-night { background: var(--night); }

/* ── NAVBAR ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(10,15,30,.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 0.5px solid var(--border-d);
  height: 64px;
}

.navbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -.03em;
  color: var(--text-inv);
}
.nav-logo span { color: var(--green); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 13px;
  color: rgba(255,255,255,.55);
  transition: color .2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-inv); opacity: 1; }

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

.lang-btn {
  background: transparent;
  border: 0.5px solid var(--border-d);
  color: rgba(255,255,255,.5);
  border-radius: 6px;
  padding: 5px 12px;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: .05em;
  transition: all .2s;
}
.lang-btn:hover { border-color: var(--green); color: var(--green); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(255,255,255,.7);
  border-radius: 2px;
  transition: all .25s;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  padding: 12px 24px;
  transition: opacity .18s, transform .18s;
  text-decoration: none;
}
.btn:hover { opacity: .88; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary  { background: var(--green); color: var(--night); }
.btn-outline  { background: transparent; color: var(--green); border: 1.5px solid var(--green); }
.btn-ghost    { background: var(--card-dark); color: var(--text-inv); border: 0.5px solid var(--border-d); }
.btn-sm       { font-size: 13px; padding: 9px 18px; }
.btn-full     { width: 100%; }

/* ── BADGES ── */
.badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.badge-green  { background: var(--green-dim); color: var(--green); }
.badge-gold   { background: rgba(255,200,60,.13); color: #CCA000; }
.badge-blue   { background: rgba(100,120,200,.13); color: #7090CC; }

/* ── CARDS ── */
.card {
  background: var(--card-dark);
  border: 0.5px solid var(--border-d);
  border-radius: var(--r);
  padding: 28px;
}

/* ── DIVIDER ── */
.divider {
  border: none;
  border-top: 0.5px solid var(--border-d);
  margin: 0;
}

/* ── TRUST BAR ── */
.trust-bar {
  background: var(--navy);
  border-bottom: 0.5px solid var(--border-d);
  padding: 20px 0;
}

.trust-bar .container {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.trust-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--sub-d);
  white-space: nowrap;
  flex-shrink: 0;
}

.trust-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  flex: 1;
}

.trust-stat-num {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 20px;
  color: var(--green);
  line-height: 1;
}

.trust-stat-lbl {
  font-size: 11px;
  color: var(--muted-d);
  margin-top: 3px;
  line-height: 1.4;
}

/* ── SPEC GRID ── */
.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.spec-item {
  background: var(--card-dark);
  border: 0.5px solid var(--border-d);
  border-radius: 10px;
  padding: 14px 16px;
}

.spec-val {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 14px;
  color: var(--green);
}

.spec-key {
  font-size: 11px;
  color: var(--muted-d);
  margin-top: 3px;
  line-height: 1.35;
}

/* ── VENUES GRID ── */
.venues-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.venue-card {
  background: var(--card-dark);
  border: 0.5px solid var(--border-d);
  border-radius: var(--r);
  padding: 20px;
}

.venue-icon {
  width: 34px;
  height: 34px;
  background: var(--green-dim);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
  margin-bottom: 12px;
}

.venue-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-inv);
  margin-bottom: 2px;
}

.venue-name-en {
  font-size: 11px;
  color: var(--sub-d);
  margin-bottom: 10px;
}

/* ── STEPS ── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-num {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 32px;
  color: var(--green);
  opacity: .22;
  line-height: 1;
  margin-bottom: 10px;
}

.step-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-inv);
  margin-bottom: 3px;
}

.step-title-en {
  font-size: 11px;
  color: var(--sub-d);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 12px;
  line-height: 1.65;
  color: var(--muted-d);
}

.step-tag {
  margin-top: 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--green);
}

/* ── FOOTER ── */
.footer {
  background: #060B15;
  border-top: 0.5px solid var(--border-d);
  padding: 56px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-desc {
  font-size: 12px;
  color: var(--muted-d);
  line-height: 1.7;
  margin: 12px 0 16px;
}

.footer-powered {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--sub-d);
}

.footer-powered-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
}

.footer-col-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-inv);
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 13px;
  color: var(--muted-d);
  transition: color .2s;
}
.footer-links a:hover { color: var(--green); opacity: 1; }

.footer-bottom {
  padding-top: 24px;
  border-top: 0.5px solid var(--border-d);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--sub-d);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom a { color: var(--sub-d); }
.footer-bottom a:hover { color: var(--green); opacity: 1; }

/* ── FORM ── */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }

.form-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted-d);
}

.form-input,
.form-select,
.form-textarea {
  background: var(--card-dark);
  border: 0.5px solid var(--border-d);
  border-radius: 8px;
  padding: 11px 14px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: var(--text-inv);
  outline: none;
  width: 100%;
  transition: border-color .2s;
}

.form-select option {
  background: #0D1526;
  color: #ffffff;
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--sub-d); }

.form-input:focus,
.form-select:focus,
.form-textarea:focus { border-color: var(--green); }

.form-select { appearance: none; cursor: pointer; }

.form-textarea { resize: vertical; min-height: 110px; }

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

/* ── LANGUAGE SWITCHER ── */
[data-fr], [data-en] { transition: opacity .2s; }
body.lang-en [data-fr] { display: none; }
body.lang-fr [data-en] { display: none; }

/* ── ANIMATIONS ── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .container { padding: 0 20px; }

  .nav-links { display: none; flex-direction: column; position: fixed; top: 64px; left: 0; right: 0; background: var(--navy); padding: 24px 20px; gap: 16px; border-bottom: 0.5px solid var(--border-d); z-index: 199; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }

  .steps-grid { grid-template-columns: 1fr 1fr; }
  .venues-grid { grid-template-columns: 1fr 1fr; }
  .spec-grid   { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  .section { padding: 56px 0; }
  .trust-stats { gap: 24px; }
}

@media (max-width: 600px) {
  .display { font-size: 32px; }
  .steps-grid  { grid-template-columns: 1fr; }
  .venues-grid { grid-template-columns: 1fr; }
  .form-row    { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .trust-stats { gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn    { transition: none; }
}