/* ============================================================
   SITE DIM — Design system
   Navy #141F33 / Orange #FA731C / White
   Big Shoulders Display (titres) — IBM Plex Sans (texte) — IBM Plex Mono (données)
   ============================================================ */

:root {
  --navy: #141F33;
  --navy-700: #1B2A47;
  --navy-600: #22335A;
  --navy-500: #2C4170;
  --orange: #FA731C;
  --orange-dark: #D65E10;
  --white: #FFFFFF;
  --ink-muted: rgba(255, 255, 255, 0.68);
  --ink-faint: rgba(255, 255, 255, 0.42);
  --line: rgba(255, 255, 255, 0.12);

  --font-display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;

  --container: 1180px;
  --radius: 10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.02;
  margin: 0 0 0.4em;
}

h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); }
h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 2.4vw, 1.6rem); }

p { margin: 0 0 1em; color: var(--ink-muted); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--orange);
}

.lead {
  font-size: 1.15rem;
  color: var(--ink-muted);
  max-width: 640px;
}

/* ---------- Ruler motif ---------- */
.ruler {
  height: 14px;
  border-top: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  background: repeating-linear-gradient(
    45deg,
    var(--white) 0 6px,
    var(--white) 6px 7px,
    var(--orange) 7px 15px,
    var(--orange) 15px 16px
  );
  background-color: var(--white);
}
.ruler--thin { height: 8px; border-width: 1px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 26px;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: var(--orange);
  color: var(--navy);
}
.btn--primary:hover { background: #ff8438; }

.btn--outline {
  border-color: var(--orange);
  color: var(--white);
  background: transparent;
}
.btn--outline:hover { border-color: var(--white); }

.btn--ghost {
  color: var(--ink-muted);
  padding: 10px 0;
}
.btn--ghost:hover { color: var(--white); transform: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(20, 31, 51, 0.97);
  border-bottom: 1px solid var(--line);
}
.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.brand-mark {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.main-nav__links {
  display: flex;
  gap: 30px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.main-nav__links a {
  color: var(--ink-muted);
  position: relative;
  padding: 6px 0;
}
.main-nav__links a:hover,
.main-nav__links a[aria-current="page"] { color: var(--white); }
.main-nav__links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--orange);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}
.lang-switch a {
  padding: 4px 7px;
  color: var(--ink-faint);
  border-radius: 3px;
}
.lang-switch a.active { color: var(--navy); background: var(--orange); }
.lang-switch a:not(.active):hover { color: var(--white); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* ---------- Hero ---------- */
.hero {
  padding: 90px 0 70px;
  position: relative;
  overflow: hidden;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.hero h1 { margin-bottom: 20px; }
.hero .lead { margin-bottom: 34px; }
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-bottom: 34px;
}
.hero__meta {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
}
.hero__meta strong { color: var(--white); font-weight: 500; }

.hero__visual {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--navy-600), var(--navy-700));
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero__visual .plan {
  width: 78%;
}

/* ---------- Sections ---------- */
section { padding: 80px 0; }
.section--tight { padding: 56px 0; }
.section--alt { background: var(--navy-700); }
.section-head {
  max-width: 700px;
  margin-bottom: 48px;
}

/* ---------- Cards / Grid ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--navy-600);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}
.card--feature {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.card__icon {
  width: 42px;
  height: 42px;
  color: var(--orange);
}
.card h3 { margin-bottom: 6px; }
.card p { margin: 0; }

/* ---------- Theme tabs (21 avantages) ---------- */
.theme-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.theme-tab {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}
.theme-tab:hover { border-color: var(--orange); color: var(--white); }
.theme-tab.active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--navy);
}

.theme-panel { display: none; }
.theme-panel.active { display: block; animation: fade-in 0.25s ease; }
@keyframes fade-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.advantage-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 32px;
}
.advantage-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.advantage-list .num {
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: 0.85rem;
  flex-shrink: 0;
  padding-top: 2px;
}
.advantage-list strong { display: block; color: var(--white); margin-bottom: 4px; }
.advantage-list p { margin: 0; font-size: 0.94rem; }

/* ---------- What's new ---------- */
.card--new {
  border-color: var(--orange);
  background: linear-gradient(160deg, var(--navy-600), var(--navy-700));
}
.badge-new {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--orange);
  color: var(--navy);
  padding: 6px 14px;
  border-radius: 999px;
}
.card__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--orange);
  background: rgba(250, 115, 28, 0.12);
  border: 1px solid var(--orange);
  padding: 3px 9px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.changelog-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.changelog-list li {
  padding-left: 20px;
  position: relative;
  color: var(--ink-muted);
  font-size: 0.94rem;
}
.changelog-list li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  color: var(--orange);
}

/* ---------- Callout / positioning note ---------- */
.callout {
  border-left: 3px solid var(--orange);
  background: var(--navy-600);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 26px 30px;
}
.callout p:last-child { margin: 0; }
.callout strong { color: var(--white); }

/* ---------- Stats / specs strip ---------- */
.specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.specs__item {
  background: var(--navy);
  padding: 24px;
}
.specs__item .label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 8px;
}
.specs__item .value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--orange);
}

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: 46px;
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--orange);
  position: absolute;
  top: 0; left: 0;
}
.step h3 { margin-bottom: 8px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--orange);
  color: var(--navy);
  border-radius: var(--radius);
  padding: 56px;
  text-align: center;
}
.cta-band h2 { color: var(--navy); margin-bottom: 12px; }
.cta-band p { color: rgba(20,31,51,0.75); max-width: 520px; margin: 0 auto 28px; }
.cta-band .btn--outline { border-color: var(--navy); color: var(--navy); }
.cta-band .btn--outline:hover { background: var(--navy); color: var(--white); }
.cta-band .btn--primary { background: var(--navy); color: var(--white); }
.cta-band .btn--primary:hover { background: #0c1526; }

/* ---------- App Store badge / pending ---------- */
.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-muted);
}
.store-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--orange);
  animation: pulse 1.6s infinite ease-in-out;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.contact-block h3 { margin-bottom: 10px; }
.contact-block .value {
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: 1.05rem;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 32px;
}
.site-footer__row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
}
.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 1.1rem;
}
.site-footer__brand .brand-mark { width: 30px; height: 30px; }
.site-footer nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-muted);
}
.site-footer nav a:hover { color: var(--white); }
.site-footer__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-faint);
  margin-top: 24px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; max-width: 380px; margin: 0 auto; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .specs { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .advantage-list { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav { position: fixed; inset: 76px 0 0 0; background: var(--navy); flex-direction: column; align-items: flex-start; padding: 32px 24px; gap: 28px; transform: translateX(100%); transition: transform 0.25s ease; overflow-y: auto; }
  .main-nav.open { transform: translateX(0); }
  .main-nav__links { flex-direction: column; gap: 20px; font-size: 1rem; }
  .nav-toggle { display: flex; }
  .header-actions .btn--primary { display: none; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .site-footer__row { flex-direction: column; }
}

@media (max-width: 480px) {
  .cta-band { padding: 36px 22px; }
}