@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@300;400;600;700&family=Source+Serif+4:ital,wght@0,300;0,400;1,300&family=Share+Tech+Mono&display=swap');

/* ─── Variables ───────────────────────────────────────────── */
:root {
  --steel:        #1A1C22;
  --steel-mid:    #22252E;
  --steel-pale:   #2B2F3A;
  --rail:         #3A3D48;
  --rail-hi:      #52566A;
  --ivory:        #F2EDDF;
  --ivory-dim:    rgba(242,237,223,.08);
  --red-sncf:     #C8102E;
  --red-dim:      rgba(200,16,46,.15);
  --blue-sncf:    #003F8A;
  --blue-mid:     #005EB8;
  --gold:         #D4A827;
  --gold-dim:     rgba(212,168,39,.12);
  --smoke:        rgba(255,255,255,.04);
  --text:         #A8AABA;
  --text-hi:      #F2EDDF;
  --text-dim:     #555870;
  --font-hdr:     'Oswald', sans-serif;
  --font-body:    'Source Serif 4', serif;
  --font-mono:    'Share Tech Mono', monospace;
  --r:            10px;
}

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

/* ─── Body ────────────────────────────────────────────────── */
body {
  font-family: var(--font-body);
  background: var(--steel);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.75;
  overflow-x: hidden;
}

/* ─── Rails au sol (fond fixe) ────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 64px;
  background:
    /* traverse gauche */
    repeating-linear-gradient(
      90deg,
      transparent 0px, transparent 18px,
      rgba(255,255,255,.06) 18px, rgba(255,255,255,.06) 48px,
      transparent 48px, transparent 80px
    );
  pointer-events: none;
  z-index: 0;
}

/* Rails — deux lignes parallèles fixes */
body::after {
  content: '';
  position: fixed;
  bottom: 8px; left: 0; right: 0;
  height: 4px;
  background:
    linear-gradient(to right, var(--rail-hi) 0%, var(--rail-hi) 100%);
  box-shadow:
    0 24px 0 var(--rail-hi);
  pointer-events: none;
  z-index: 0;
}

/* ─── Wrap ────────────────────────────────────────────────── */
.wrap {
  max-width: 1050px;
  margin: 0 auto;
  padding: 36px 24px 100px;
  position: relative;
  z-index: 1;
}

/* ─── HERO — tableau de départ façon gare ─────────────────── */
.hero {
  background: var(--blue-sncf);
  border-radius: var(--r);
  padding: 0;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0,0,0,.5);
  animation: heroIn .7s cubic-bezier(.22,1,.36,1) both;
  border: 1px solid rgba(255,255,255,.08);
}
@keyframes heroIn {
  from { opacity:0; transform:translateY(-28px); }
  to   { opacity:1; transform:translateY(0); }
}

/* Bande rouge SNCF en haut */
.hero-stripe {
  height: 8px;
  background: var(--red-sncf);
}

/* Corps du héros */
.hero-body {
  padding: 32px 40px 36px;
  position: relative;
}

/* Affichage départ style flip-board */
.hero-board {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 16px;
}
.hero-train-num {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--gold);
  background: rgba(212,168,39,.14);
  border: 1px solid rgba(212,168,39,.3);
  padding: 3px 10px;
  border-radius: 4px;
  letter-spacing: 2px;
}
.hero-voie {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: rgba(255,255,255,.45);
  letter-spacing: 1px;
}

.hero h1 {
  font-family: var(--font-hdr);
  font-size: clamp(2.4rem, 6vw, 3.8rem);
  color: #fff;
  letter-spacing: 6px;
  text-transform: uppercase;
  text-shadow: 0 2px 12px rgba(0,0,0,.35);
  margin-bottom: 12px;
  line-height: 1;
}

.hero p {
  color: rgba(255,255,255,.70);
  font-weight: 300;
  font-style: italic;
  font-size: 1rem;
  max-width: 60ch;
}

/* Locomotive silhouette */
.hero-loco {
  position: absolute;
  right: 32px; bottom: 16px;
  font-size: 4.5rem;
  opacity: .10;
  transform: scaleX(-1);
  filter: drop-shadow(0 4px 12px rgba(0,0,0,.4));
  animation: locoFloat 5s ease-in-out infinite;
}
@keyframes locoFloat {
  0%,100% { transform: scaleX(-1) translateX(0); }
  50%      { transform: scaleX(-1) translateX(-8px); }
}

/* ─── Carte départ/arrivée (JS-injected) ─────────────────── */
.station-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
  border: 1px solid;
}
.station-chip.depart  { background: var(--red-dim);  color: #F87171; border-color: rgba(248,113,113,.3); }
.station-chip.transit { background: var(--gold-dim);  color: var(--gold); border-color: rgba(212,168,39,.3); }
.station-chip.arrivee { background: rgba(34,197,94,.10); color: #4ADE80; border-color: rgba(74,222,128,.25); }

/* ─── Cards ───────────────────────────────────────────────── */
.card:not(.hero) {
  background: var(--steel-mid);
  border: 1px solid var(--rail);
  border-radius: var(--r);
  padding: 26px 30px;
  margin-bottom: 14px;
  position: relative;
  opacity: 0;
  animation: cardIn .5s cubic-bezier(.22,1,.36,1) forwards;
  transition: border-color .25s, box-shadow .25s, transform .2s;
  overflow: hidden;
}
.card:not(.hero)::before {
  content: '';
  position: absolute;
  left: 0; top: 16px; bottom: 16px;
  width: 3px;
  background: linear-gradient(to bottom, var(--red-sncf), var(--blue-mid));
  border-radius: 0 3px 3px 0;
  opacity: 0;
  transition: opacity .25s;
}
.card:not(.hero):hover {
  border-color: var(--rail-hi);
  box-shadow: 0 6px 28px rgba(0,0,0,.3), inset 0 0 40px var(--ivory-dim);
  transform: translateX(5px);
}
.card:not(.hero):hover::before { opacity: 1; }

/* Numéro de wagon */
.wagon-num {
  position: absolute;
  top: 10px; right: 14px;
  font-family: var(--font-mono);
  font-size: .62rem;
  color: var(--text-dim);
  letter-spacing: 1px;
}

/* Stagger */
.card:nth-child(1){animation-delay:.05s}.card:nth-child(2){animation-delay:.11s}
.card:nth-child(3){animation-delay:.17s}.card:nth-child(4){animation-delay:.23s}
.card:nth-child(5){animation-delay:.29s}.card:nth-child(6){animation-delay:.35s}
.card:nth-child(7){animation-delay:.41s}.card:nth-child(8){animation-delay:.47s}
.card:nth-child(9){animation-delay:.53s}

@keyframes cardIn {
  from { opacity:0; transform:translateX(-20px); }
  to   { opacity:1; transform:translateX(0); }
}

/* ─── Headings ────────────────────────────────────────────── */
h2 {
  font-family: var(--font-hdr);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ivory);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

p  { font-weight: 300; margin-bottom: 10px; color: var(--text); }
p:last-child { margin-bottom: 0; }

/* ─── Lists ───────────────────────────────────────────────── */
ul { list-style: none; display: flex; flex-direction: column; gap: 7px; }
li {
  padding-left: 20px;
  position: relative;
  font-weight: 300;
  font-size: .97rem;
}
li::before {
  content: '—';
  position: absolute; left: 0;
  color: var(--red-sncf);
  font-family: var(--font-mono);
  font-weight: 400;
}

/* ─── Barre de progression façon quai ────────────────────── */
.quai-wrap {
  margin-top: 16px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
}
.quai-label {
  font-family: var(--font-mono);
  font-size: .6rem;
  color: var(--text-dim);
  letter-spacing: 1px;
  text-transform: uppercase;
  white-space: nowrap;
}
.quai-track {
  height: 3px;
  background: rgba(255,255,255,.06);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}
.quai-fill {
  height: 100%;
  width: 0;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--red-sncf), var(--gold));
  box-shadow: 0 0 8px rgba(200,16,46,.5);
  transition: width 1.4s cubic-bezier(.22,1,.36,1);
  position: relative;
}
/* Wagon qui roule en bout de barre */
.quai-fill::after {
  content: '▮';
  position: absolute;
  right: -6px; top: 50%;
  transform: translateY(-50%);
  color: var(--gold);
  font-size: .5rem;
  opacity: 0;
  transition: opacity .3s .8s;
}
.quai-fill.running::after { opacity: 1; }
.quai-pct {
  font-family: var(--font-mono);
  font-size: .6rem;
  color: var(--gold);
  min-width: 32px;
  text-align: right;
}

/* ─── Départ countdown (JS header) ───────────────────────── */
#depart-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  padding: 10px 16px;
  background: var(--steel-pale);
  border: 1px solid var(--rail);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-dim);
  letter-spacing: 1px;
}
#depart-time {
  color: var(--ivory);
  font-size: .95rem;
  min-width: 52px;
}
.depart-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4ADE80;
  box-shadow: 0 0 6px #4ADE80;
  animation: blink .9s step-end infinite;
  flex-shrink: 0;
}
@keyframes blink { 50% { opacity: 0; } }

/* ─── Scroll-to-top ───────────────────────────────────────── */
#back-top {
  position: fixed;
  bottom: 32px; right: 28px;
  width: 46px; height: 46px;
  background: var(--red-sncf);
  color: #fff;
  border: none; border-radius: 6px;
  font-family: var(--font-hdr);
  font-size: 1rem;
  letter-spacing: 1px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(200,16,46,.35);
  opacity: 0; pointer-events: none;
  transition: opacity .3s, transform .25s, box-shadow .25s;
  z-index: 100;
}
#back-top.visible { opacity: 1; pointer-events: auto; }
#back-top:hover   { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(200,16,46,.5); }

/* ─── Responsive ──────────────────────────────────────────── */
@media (max-width: 600px) {
  .hero-body { padding: 24px 20px 30px; }
  .hero-loco { font-size: 3rem; right: 14px; }
  h2 { font-size: .88rem; }
}