/* =============================================================================
   Projets techniques — Dorian Laroche Faleu

   Page de preuve, volontairement sombre et détaillée : elle s'adresse à qui
   creuse. La page commerciale, elle, est claire — voir styles.css.

   Aucune dépendance, aucune police distante : la page s'ouvre hors ligne.
   ============================================================================= */

:root {
  --nuit:        #0B1120;
  --nuit-clair:  #131C2E;
  --encre:       #F8FAFC;
  --encre-douce: #94A3B8;
  --bord:        #1E293B;
  --bord-fort:   #334155;
  --accent:      #6366F1;
  --accent-vif:  #818CF8;
  --sable:       #FBBF24;
  --succes:      #34D399;

  --large:  1120px;
  --etroit: 720px;

  --pas: clamp(1rem, 3vw, 2rem);

  --police: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
            "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  background: var(--nuit);
  color: var(--encre);
  font-family: var(--police);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-vif); }
a:hover { color: var(--encre); }

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

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: .75rem 1.25rem;
  z-index: 100;
}
.skip:focus { left: 0; }

.wrap {
  max-width: var(--large);
  margin-inline: auto;
  padding-inline: var(--pas);
}
.wrap.narrow { max-width: var(--etroit); }

/* ------------------------------------------------------------------ En-tête */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 17, 32, .82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--bord);
}

.nav {
  max-width: var(--large);
  margin-inline: auto;
  padding: 1rem var(--pas);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-weight: 800;
  letter-spacing: .12em;
  font-size: .95rem;
  color: var(--encre);
  text-decoration: none;
  border: 2px solid var(--bord-fort);
  border-radius: 8px;
  padding: .35rem .6rem;
}
.brand:hover { border-color: var(--accent-vif); }

.nav-links {
  display: flex;
  gap: clamp(.75rem, 2.5vw, 1.75rem);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: .92rem;
}
.nav-links a {
  color: var(--encre-douce);
  text-decoration: none;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--encre); }

/* --------------------------------------------------------------------- Hero */

.hero {
  padding: clamp(4rem, 12vw, 8rem) 0 clamp(3rem, 8vw, 5rem);
  background:
    radial-gradient(60rem 32rem at 12% -12%, rgba(99, 102, 241, .20), transparent 65%),
    radial-gradient(48rem 28rem at 92% 8%, rgba(251, 191, 36, .09), transparent 60%);
}

.eyebrow {
  margin: 0 0 .9rem;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent-vif);
}

h1 {
  margin: 0 0 1.4rem;
  font-size: clamp(2.3rem, 6.5vw, 4.1rem);
  line-height: 1.08;
  letter-spacing: -.025em;
  font-weight: 800;
}
h1 em {
  font-style: normal;
  color: var(--accent-vif);
}

h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.85rem, 4.2vw, 2.7rem);
  line-height: 1.15;
  letter-spacing: -.02em;
  font-weight: 800;
}

h3.sub {
  margin: 3.5rem 0 1.2rem;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -.01em;
}

.lede {
  margin: 0 0 2rem;
  max-width: 62ch;
  font-size: clamp(1.02rem, 2.2vw, 1.2rem);
  color: var(--encre-douce);
}

.body {
  max-width: 68ch;
  color: var(--encre-douce);
}

.muted { color: var(--encre-douce); }

/* ------------------------------------------------------------------ Boutons */

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin-bottom: 3.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .8rem 1.5rem;
  border-radius: 10px;
  font-weight: 650;
  font-size: .97rem;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform .12s ease, background-color .12s ease, border-color .12s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-vif); color: #fff; }

.btn-ghost {
  border-color: var(--bord-fort);
  color: var(--encre);
}
.btn-ghost:hover { border-color: var(--accent-vif); color: var(--encre); }

/* ---------------------------------------------------------------- Chiffres */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--bord);
  border: 1px solid var(--bord);
  border-radius: 14px;
  overflow: hidden;
}
.stats > div {
  background: var(--nuit-clair);
  padding: 1.35rem 1.25rem;
}
.stats dt {
  font-size: .74rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--encre-douce);
  margin-bottom: .45rem;
}
.stats dd {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}

/* ---------------------------------------------------------------- Sections */

.section {
  padding: clamp(3.5rem, 9vw, 6.5rem) 0;
  border-top: 1px solid var(--bord);
}
.section.alt { background: #080D18; }

.project-head { margin-bottom: 2.5rem; }

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.tag-row li {
  font-size: .82rem;
  font-weight: 600;
  padding: .32rem .75rem;
  border: 1px solid var(--bord-fort);
  border-radius: 999px;
  color: var(--encre-douce);
}

/* ------------------------------------------------------ Cadre de capture */

.shot {
  margin: 0 0 1rem;
  border: 1px solid var(--bord-fort);
  border-radius: 14px;
  overflow: hidden;
  background: var(--nuit-clair);
}

.shot-bar {
  display: flex;
  align-items: center;
  gap: .45rem;
  padding: .7rem .9rem;
  background: #0E1626;
  border-bottom: 1px solid var(--bord);
}
.shot-bar > span {
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--bord-fort);
  flex: none;
}
.shot-url {
  margin-left: .6rem;
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--encre-douce);
}

.shot-body { position: relative; min-height: 120px; }
.shot-body img { display: block; width: 100%; height: auto; }
.shot-fallback { display: none; }

.shot-body.vide img { display: none; }
.shot-body.vide .shot-fallback {
  display: block;
  margin: 0;
  padding: 3.5rem 1.5rem;
  text-align: center;
  color: var(--encre-douce);
  font-size: .9rem;
}
.shot-fallback code {
  font-family: var(--mono);
  font-size: .85em;
  background: var(--bord);
  padding: .15rem .4rem;
  border-radius: 4px;
}

/* ------------------------------------------------------------------ Cartes */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 1.1rem;
}

.card {
  background: var(--nuit-clair);
  border: 1px solid var(--bord);
  border-radius: 14px;
  padding: 1.5rem;
}
.card h4 {
  margin: 0 0 .7rem;
  font-size: 1.03rem;
  font-weight: 700;
}
.card p {
  margin: 0;
  font-size: .93rem;
  color: var(--encre-douce);
}

/* -------------------------------------------------------------- Décisions */

.decisions {
  display: grid;
  gap: 1px;
  background: var(--bord);
  border: 1px solid var(--bord);
  border-radius: 14px;
  overflow: hidden;
}
.decision {
  background: var(--nuit-clair);
  padding: 1.6rem;
  border-left: 3px solid var(--accent);
}
.decision h4 {
  margin: 0 0 .6rem;
  font-size: 1.05rem;
  font-weight: 700;
}
.decision p {
  margin: 0;
  color: var(--encre-douce);
  font-size: .95rem;
  max-width: 72ch;
}
.decision code {
  font-family: var(--mono);
  font-size: .88em;
  background: var(--bord);
  padding: .12rem .38rem;
  border-radius: 4px;
  color: var(--sable);
}

/* --------------------------------------------------------------- Métriques */

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1.1rem;
}
.metric {
  background: var(--nuit-clair);
  border: 1px solid var(--bord);
  border-radius: 14px;
  padding: 1.4rem;
}
.metric strong {
  display: block;
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--succes);
  font-variant-numeric: tabular-nums;
  margin-bottom: .4rem;
}
.metric span {
  font-size: .87rem;
  color: var(--encre-douce);
}

/* ------------------------------------------------------------ Savoir-faire */

.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 2rem;
}
.skill-group h3 {
  margin: 0 0 .9rem;
  font-size: 1.02rem;
  font-weight: 700;
  padding-bottom: .55rem;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
.skill-group ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--encre-douce);
  font-size: .93rem;
}
.skill-group li { margin-bottom: .45rem; }

/* ---------------------------------------------------------------- Parcours */

.two-col {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2.5rem;
  align-items: start;
}
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
}

.facts {
  background: var(--nuit-clair);
  border: 1px solid var(--bord);
  border-radius: 14px;
  padding: 1.5rem;
}
.facts h3 {
  margin: 0 0 1rem;
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-vif);
}
.facts dl { margin: 0; }
.facts dt {
  font-size: .78rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--encre-douce);
  margin-top: .9rem;
}
.facts dt:first-child { margin-top: 0; }
.facts dd {
  margin: .2rem 0 0;
  font-weight: 600;
  font-size: .95rem;
}

/* ------------------------------------------------------- Marqueur à faire */

.todo {
  background: rgba(251, 191, 36, .13);
  border-bottom: 2px dashed var(--sable);
  color: var(--sable);
  padding: .1rem .3rem;
  border-radius: 3px;
}

/* ----------------------------------------------------------------- Contact */

.contact-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
}
.contact-card {
  display: block;
  background: var(--nuit-clair);
  border: 1px solid var(--bord);
  border-radius: 14px;
  padding: 1.35rem;
  text-decoration: none;
  color: var(--encre);
  transition: border-color .12s ease, transform .12s ease;
}
.contact-card:hover {
  border-color: var(--accent-vif);
  transform: translateY(-2px);
  color: var(--encre);
}
.contact-label {
  display: block;
  font-size: .74rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--encre-douce);
  margin-bottom: .4rem;
}
.contact-value {
  display: block;
  font-weight: 650;
  font-size: .95rem;
  word-break: break-word;
}
.todo-card { border-style: dashed; }

/* ------------------------------------------------------------------- Pied */

.site-footer {
  border-top: 1px solid var(--bord);
  padding: 2.5rem 0;
  font-size: .88rem;
}
.site-footer p { margin: 0 0 .3rem; }

/* --------------------------------------------------------------- Impression */

@media print {
  .site-header, .cta-row, .skip { display: none; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .section, .hero { padding: 1rem 0; border: 0; }
  .card, .metric, .facts, .decision, .stats > div { background: #fff; border: 1px solid #ccc; }
  a { color: #000; text-decoration: underline; }
}