/* Site SEKHEM — direction « inspirée SpaceX » adaptée : sections plein écran,
   scroll cinématographique, fond satellite animé, gros titres — vert conservé. */
:root {
  --bg: #060A07; --bg-2: #0A0F0B; --panel: #0E140F; --panel-2: #141C16;
  --line: rgba(255,255,255,.12); --line-soft: rgba(255,255,255,.06);
  --ink: #F2EFE6; --ink-2: #B9C2B2; --ink-3: #7C8779;
  --green: #8CC79A; --beige: #D3C19A; --accent: #8CC79A;
  --f-display: "Space Grotesk", sans-serif; --f-ui: "IBM Plex Sans", system-ui, sans-serif;
  --f-mono: "IBM Plex Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-snap-type: y proximity; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--f-ui);
  -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--f-display); font-weight: 700; margin: 0; }

/* ===== Nav fixe, translucide ===== */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; display: flex;
  align-items: center; gap: 24px; padding: 18px 48px;
  background: linear-gradient(to bottom, rgba(6,10,7,.85), transparent); }
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-mark { width: 32px; height: 32px; border-radius: 8px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--green), var(--beige)); color: #060A07;
  font-family: var(--f-display); font-weight: 700; font-size: 12px; }
.nav-name { font-family: var(--f-display); font-weight: 700; letter-spacing: .22em; font-size: 16px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; font-family: var(--f-mono);
  font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); }
.nav-cta { font-family: var(--f-mono); font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; padding: 10px 18px; border: 1px solid var(--ink);
  border-radius: 2px; transition: .2s; }
.nav-cta:hover { background: var(--ink); color: var(--bg); }
@media (max-width: 820px) { .nav-links { display: none; } .nav { padding: 16px 22px; } }

/* ===== Sections plein écran (scènes) ===== */
.scene { min-height: 100vh; scroll-snap-align: start; position: relative;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; padding: 120px 24px 80px; overflow: hidden; }
.scene-inner { max-width: 1040px; position: relative; z-index: 2; width: 100%; }
.eyebrow { font-family: var(--f-mono); font-size: 11px; letter-spacing: .28em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 22px; }
.scene h1 { font-size: clamp(36px, 7vw, 84px); line-height: 1.03; letter-spacing: -.02em;
  text-transform: uppercase; }
.scene h2 { font-size: clamp(26px, 4.6vw, 52px); line-height: 1.06; letter-spacing: -.01em;
  text-transform: uppercase; }
.scene .lead { font-size: clamp(15px, 1.6vw, 18px); color: var(--ink-2); max-width: 620px;
  margin: 26px auto 0; line-height: 1.6; }

/* apparition douce au scroll (révélée par JS) */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s ease, transform .9s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== Vidéo de fond du hero (par-dessus le gradient, sous le contenu) ===== */
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: 0; pointer-events: none;
  /* teinte verte + désaturation légère pour coller à l'identité */
  filter: saturate(.85) brightness(.9) contrast(1.05); }
.hero-veil { position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(to bottom, rgba(6,10,7,.55), rgba(6,10,7,.35) 40%, rgba(6,10,7,.92)),
    radial-gradient(60% 50% at 50% 45%, transparent, rgba(6,10,7,.4));
  mix-blend-mode: normal; }

/* ===== Vidéo de fond générique d'une scène (mode paysage, recadrée) ===== */
.scene-video { position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center; z-index: 0; pointer-events: none;
  filter: saturate(.9) brightness(.95) contrast(1.03); }
.scene-veil { position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(to bottom, rgba(6,10,7,.5), rgba(6,10,7,.32) 45%, rgba(6,10,7,.82)),
    radial-gradient(70% 60% at 50% 45%, rgba(6,10,7,.12), rgba(6,10,7,.5)); }

/* image de fond statique d'une scène (mode paysage, recadrée) */
.scene-img { position: absolute; inset: 0; z-index: 0; background-size: cover;
  background-position: center; filter: saturate(.95) brightness(.92); }

/* ===== Fond satellite animé ===== */
.earthbg { position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(80% 60% at 50% 120%, color-mix(in srgb, var(--green) 30%, transparent), transparent 60%),
    radial-gradient(60% 50% at 80% 8%, color-mix(in srgb, var(--beige) 14%, transparent), transparent 55%),
    radial-gradient(70% 60% at 15% 30%, color-mix(in srgb, #2a4a3a 55%, transparent), transparent 60%),
    var(--bg); }
.earthbg::before { content: ""; position: absolute; inset: -20%;
  background: radial-gradient(40% 40% at 50% 50%, color-mix(in srgb, var(--green) 16%, transparent), transparent 70%);
  animation: drift 24s ease-in-out infinite alternate; }
.earthbg::after { content: ""; position: absolute; inset: 0; opacity: .45;
  background:
    repeating-linear-gradient(90deg, transparent, transparent 78px, rgba(140,199,154,.05) 79px),
    repeating-linear-gradient(0deg, transparent, transparent 78px, rgba(140,199,154,.05) 79px);
  -webkit-mask-image: radial-gradient(70% 70% at 50% 60%, #000, transparent 75%);
  mask-image: radial-gradient(70% 70% at 50% 60%, #000, transparent 75%);
  animation: gridfade 9s ease-in-out infinite alternate; }
@keyframes drift { from { transform: translate(-8%, -4%) scale(1.05); }
  to { transform: translate(8%, 6%) scale(1.16); } }
@keyframes gridfade { from { opacity: .28; } to { opacity: .55; } }
.scene::after { content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 28%;
  background: linear-gradient(to top, var(--bg), transparent); z-index: 1; pointer-events: none; }

/* boutons */
.btns { display: flex; gap: 14px; justify-content: center; margin-top: 38px; flex-wrap: wrap; }
.btn { font-family: var(--f-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  padding: 14px 26px; border-radius: 2px; cursor: pointer; transition: .2s; border: 1px solid transparent; }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); }
.btn-ghost { border-color: var(--ink-2); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }

/* stats du hero */
.hero-stats { display: flex; gap: 48px; justify-content: center; margin-top: 56px; flex-wrap: wrap; }
.hero-stats b { display: block; font-family: var(--f-display); font-size: 34px; color: var(--ink); }
.hero-stats span { font-family: var(--f-mono); font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-3); }

/* scènes structurées */
.scene.dark { background: var(--bg-2); }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 48px;
  background: var(--line-soft); border: 1px solid var(--line-soft); }
.cell { background: var(--bg); padding: 32px 26px; text-align: left; }
/* dans une scène vidéo, les cellules laissent transparaître le fond (verre dépoli) */
.has-video .grid3 { background: transparent; border: none; gap: 16px; max-width: 880px;
  margin-left: auto; margin-right: auto; }
.has-video .cell { background: rgba(8,12,9,.28); backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px); border: 1px solid var(--line-soft);
  border-radius: 4px; padding: 20px 18px; }
.has-video .cell h3 { font-size: 15px; margin: 10px 0 6px; }
.has-video .cell p { font-size: 13px; }
.cell .ic { font-size: 22px; color: var(--accent); }
.cell h3 { font-size: 17px; margin: 14px 0 8px; text-transform: uppercase; letter-spacing: .02em; }
.cell p { font-size: 14px; color: var(--ink-2); line-height: 1.55; }

.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 48px;
  background: var(--line-soft); border: 1px solid var(--line-soft); text-align: left; }
.mod { background: var(--bg); padding: 32px; }
.mod.phare { background: linear-gradient(160deg, color-mix(in srgb, var(--green) 10%, var(--bg)), var(--bg)); }
.mod .tag { font-family: var(--f-mono); font-size: 9px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--accent); }
.mod .tag.soon { color: var(--beige); }
.mod h3 { font-size: 18px; margin: 10px 0 8px; text-transform: uppercase; }
.mod p { font-size: 14px; color: var(--ink-2); line-height: 1.55; }
/* dans une scène avec image de fond, les modules s'effacent (verre dépoli) */
.has-bg .grid2 { background: transparent; border: none; gap: 16px; max-width: 920px;
  margin-left: auto; margin-right: auto; }
.has-bg .mod { background: rgba(8,12,9,.30); backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px); border: 1px solid var(--line-soft);
  border-radius: 4px; padding: 22px 20px; }
.has-bg .mod.phare { background: linear-gradient(160deg,
  color-mix(in srgb, var(--green) 14%, rgba(8,12,9,.34)), rgba(8,12,9,.34)); }
.has-bg .mod h3 { font-size: 16px; }
.has-bg .mod p { font-size: 13px; }

.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 48px;
  background: var(--line-soft); border: 1px solid var(--line-soft); }
.kpi { background: var(--bg); padding: 34px 22px; }
.kpi b { display: block; font-family: var(--f-display); font-size: 38px; color: var(--green); line-height: 1; }
.kpi span { display: block; margin-top: 12px; font-size: 13px; color: var(--ink-2); }
/* dans une scène vidéo, les KPI s'effacent (verre dépoli) pour laisser voir le fond */
.has-video .kpis { background: transparent; border: none; gap: 16px; max-width: 980px;
  margin-left: auto; margin-right: auto; }
.has-video .kpi { background: rgba(8,12,9,.30); backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px); border: 1px solid var(--line-soft);
  border-radius: 4px; padding: 26px 18px; }

/* ===== Upcoming Launches : dropdown du header (style SpaceX) ===== */
.nav-launch { position: relative; }
.nav-cta { cursor: pointer; background: none; font-family: var(--f-mono); }
.launch-menu { position: absolute; top: calc(100% + 14px); right: 0; min-width: 250px;
  background: none; border: 0; padding: 0; z-index: 200;
  opacity: 0; transform: translateY(-8px); pointer-events: none; transition: .2s; }
.launch-menu.open { opacity: 1; transform: none; pointer-events: auto; }
.lm-head { display: none; }
.lm-item { display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  background: none; border: 0; padding: 9px 2px; cursor: pointer; transition: .15s; }
.lm-item:hover { transform: translateX(3px); }
.lm-item:hover .lm-name { color: var(--accent); }
.lm-eta { font-family: var(--f-mono); font-size: 11px; color: var(--accent); width: 38px; flex: none; }
.lm-name { font-family: var(--f-display); font-size: 15px; color: var(--ink); flex: 1; transition: .15s;
  text-shadow: 0 1px 8px rgba(0,0,0,.6); }
.lm-tag { font-family: var(--f-mono); font-size: 8px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--beige); }

/* ===== Boîte de dialogue · détail d'un lancement ===== */
.launch-dialog { width: min(520px, 92vw); border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); color: var(--ink); padding: 40px 36px 30px; position: relative; }
.launch-dialog::backdrop { background: rgba(4,7,5,.72); backdrop-filter: blur(4px); }
.launch-dialog[open] { animation: ldin .25s ease; }
@keyframes ldin { from { opacity: 0; transform: translateY(10px) scale(.98); } to { opacity: 1; transform: none; } }
.ld-close { position: absolute; top: 16px; right: 16px; background: none; border: 0; cursor: pointer;
  color: var(--ink-3); font-size: 16px; line-height: 1; padding: 4px; transition: .15s; }
.ld-close:hover { color: var(--ink); }
.ld-eyebrow { font-family: var(--f-mono); font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px; }
.ld-title { font-family: var(--f-display); font-size: 30px; text-transform: uppercase; margin: 0 0 16px; }
.ld-body { font-size: 15px; color: var(--ink-2); line-height: 1.65; margin: 0 0 26px; }
.ld-foot { font-family: var(--f-mono); font-size: 10px; letter-spacing: .1em; color: var(--ink-3);
  border-top: 1px solid var(--line-soft); padding-top: 16px; }

.contact { margin-top: 30px; font-family: var(--f-mono); font-size: 13px; }
.contact a { color: var(--accent); }
.foot { font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; color: var(--ink-3);
  margin-top: 40px; }

@media (max-width: 820px) {
  .grid3, .grid2, .kpis { grid-template-columns: 1fr; }
  .scene { padding: 100px 18px 60px; }
}