/* =========================================================
   SERIN 2027 — Styles specifiques a la page evenement
   Palette officielle du salon (navy/dore/blanc), distincte de la
   palette generale d'ORACLE (le header/footer du site restent
   inchanges ; seul le contenu de cette page utilise ces tokens).
   ========================================================= */

.serin {
  --serin-navy: #12285C;
  --serin-navy-deep: #0B1B3F;
  --serin-navy-2: #1B3269;
  --serin-gold: #C6982F;
  --serin-gold-light: #DCB35C;
  --serin-white: #FFFFFF;
  --serin-offwhite: #F4F6FA;
  --serin-red: #CE1126;
  --serin-ink: #12285C;

  --font-display: 'Archivo Black', var(--font-ui), sans-serif;
}

.serin-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-ui); font-weight: 800; font-size: .78rem;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--serin-navy); background: rgba(198,152,47,.14);
  padding: 8px 18px; border-radius: 999px; margin-bottom: 24px;
}
.serin-eyebrow-dark {
  display: inline-block;
  font-family: var(--font-ui); font-weight: 800; font-size: .78rem;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--serin-gold); margin-bottom: 10px;
}

/* ===== Hero ===== */
.serin-hero {
  position: relative;
  overflow: hidden;
  background: var(--serin-offwhite);
  padding: 156px 0 90px;
}
.serin-hero-map {
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(18,40,92,.14) 1.4px, transparent 1.4px);
  background-size: 20px 20px;
  -webkit-mask-image: radial-gradient(ellipse 70% 90% at 30% 40%, #000 40%, transparent 78%);
  mask-image: radial-gradient(ellipse 70% 90% at 30% 40%, #000 40%, transparent 78%);
  z-index: 0;
}
.serin-hero::before {
  content: '';
  position: absolute;
  top: -12%; left: -10%;
  width: 30%; height: 145%;
  background: var(--serin-navy-deep);
  clip-path: polygon(0 0, 60% 0, 30% 100%, 0 100%);
  z-index: 0;
}
.serin-hero::after {
  content: '';
  position: absolute;
  top: -12%; left: 10%;
  width: 9%; height: 145%;
  background: var(--serin-gold);
  clip-path: polygon(0 0, 100% 0, 55% 100%, 0 100%);
  z-index: 0;
}
.serin-hero-grid {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 56px;
  align-items: start;
}

.serin-wordmark {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5rem);
  line-height: .9;
  color: var(--serin-navy);
  margin: 0 0 .18em;
  letter-spacing: -.01em;
}
.serin-wordmark .gold-i { color: var(--serin-gold); }

.serin-subtitle {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  color: var(--serin-navy);
  max-width: 560px;
  margin: 0 0 18px;
}

.serin-theme {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--ink-soft);
  max-width: 520px;
  margin: 0 0 32px;
}

.serin-hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 30px; }
.btn-serin-navy { background: var(--serin-navy); color: var(--serin-white); }
.btn-serin-navy:hover { background: var(--serin-navy-2); transform: translateY(-2px); }
.btn-serin-outline { border: 2px solid var(--serin-navy); color: var(--serin-navy); background: transparent; }
.btn-serin-outline:hover { background: var(--serin-navy); color: var(--serin-white); transform: translateY(-2px); }

.serin-credit {
  font-family: var(--font-ui);
  font-size: .82rem;
  color: var(--ink-soft);
}
.serin-credit strong { color: var(--serin-navy); }

/* ===== Carte "en bref" (hero, colonne droite) ===== */
.serin-fact-card {
  position: relative; z-index: 1;
  background: var(--serin-navy);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: 0 24px 48px rgba(11,27,63,.25);
}
.serin-fact-card .serin-globe { width: 42px; height: 42px; margin-bottom: 14px; }
.serin-fact-title {
  font-family: var(--font-ui); font-weight: 800; letter-spacing: .1em;
  text-transform: uppercase; font-size: .8rem; color: var(--serin-gold-light);
  margin-bottom: 20px;
}
.serin-fact-list { list-style: none; margin: 0 0 26px; padding: 0; }
.serin-fact-list li {
  padding: 16px 0; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; flex-direction: column; gap: 4px;
}
.serin-fact-list li:last-child { padding-bottom: 0; }
.serin-fact-list strong { color: var(--serin-white); font-size: 1rem; }
.serin-fact-list span { color: rgba(255,255,255,.65); font-size: .84rem; }
.serin-motto-row {
  display: flex; flex-wrap: wrap; gap: 6px 14px;
  font-family: var(--font-ui); font-weight: 700; font-size: .72rem;
  letter-spacing: .06em; text-transform: uppercase; color: var(--serin-gold-light);
  border-top: 1px solid rgba(255,255,255,.12); padding-top: 18px;
}

/* ===== Bandeau compteur ===== */
.serin-countdown-section {
  background: linear-gradient(160deg, var(--serin-navy-deep) 0%, var(--serin-navy) 100%);
  padding: 72px 0;
  text-align: center;
}
.serin-countdown-label {
  font-family: var(--font-ui);
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--serin-gold-light);
  font-size: .95rem;
  margin-bottom: 28px;
}
.serin-countdown-grid {
  display: flex;
  justify-content: center;
  align-items: baseline;
  gap: clamp(8px, 2vw, 20px);
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.serin-countdown-unit { min-width: 84px; }
.serin-countdown-number {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  color: var(--serin-white);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.serin-countdown-sep {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 3rem);
  color: var(--serin-gold);
  line-height: 1;
  transform: translateY(-6px);
}
.serin-countdown-unit-label {
  font-family: var(--font-ui);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.7);
  margin-top: 8px;
}
.serin-countdown-message {
  font-family: var(--font-display);
  color: var(--serin-white);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  margin-bottom: 36px;
}

.btn-serin-gold {
  background: var(--serin-gold);
  color: var(--serin-navy-deep);
}
.btn-serin-gold:hover { background: var(--serin-gold-light); transform: translateY(-2px); }

.serin-signature {
  margin-top: 26px;
  font-family: var(--font-accent);
  font-style: italic;
  color: var(--serin-gold-light);
  font-size: 1.05rem;
}

/* ===== A propos / Pourquoi ce projet ===== */
.serin-about { background: var(--serin-white); padding: 96px 0 88px; }
.serin-about-intro { max-width: 760px; margin: 0 auto 48px; text-align: center; }
.serin-about-intro p.lead { color: var(--ink-soft); font-size: 1.08rem; line-height: 1.7; }
.serin-about-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 640px; margin: 36px auto 0; text-align: center; }
.serin-about-stats .serin-stat-number { font-family: var(--font-display); color: var(--serin-gold); font-size: clamp(2rem, 4vw, 2.6rem); line-height: 1; }
.serin-about-stats .serin-stat-label { font-family: var(--font-ui); font-size: .76rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); margin-top: 8px; }

.serin-about-body { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 40px; }
.serin-about-block h3 { color: var(--serin-navy); font-size: 1.3rem; margin-bottom: .55em; }
.serin-about-block p { color: var(--ink-soft); font-size: .98rem; line-height: 1.75; margin: 0; }
.serin-about-block p + p { margin-top: 1em; }

/* ===== Chiffres cles ===== */
.serin-stats { background: var(--serin-white); padding: 56px 0; border-bottom: 1px solid rgba(18,40,92,.08); }
.serin-stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center;
}
.serin-stat-number, .serin-stat-number-text {
  font-family: var(--font-display); color: var(--serin-navy);
  font-size: clamp(2rem, 4vw, 2.8rem); line-height: 1;
}
.serin-stat-label {
  font-family: var(--font-ui); font-size: .78rem; letter-spacing: .06em;
  text-transform: uppercase; color: var(--ink-soft); margin-top: 10px;
}

/* ===== Axes thematiques ===== */
.serin-axes { background: var(--serin-offwhite); padding: 96px 0; }
.serin-axes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.serin-axe-card {
  background: var(--serin-white); border: 1px solid rgba(18,40,92,.1);
  border-radius: var(--radius); padding: 34px 28px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.serin-axe-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(18,40,92,.12); border-color: var(--serin-gold); }
.serin-axe-icon {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(198,152,47,.14);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.serin-axe-icon svg { width: 26px; height: 26px; }
.serin-axe-card h3 { color: var(--serin-navy); font-size: 1.2rem; margin-bottom: .5em; }
.serin-axe-card p { color: var(--ink-soft); font-size: .93rem; margin: 0; }

/* ===== Organisateurs ===== */
.serin-organizers { background: var(--serin-white); padding: 64px 0 96px; }
.serin-organizers-label {
  text-align: center; font-family: var(--font-ui); font-weight: 700;
  font-size: .82rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 28px;
}
.serin-organizers-row { display: flex; justify-content: center; gap: 48px; flex-wrap: wrap; }
.serin-organizer { display: flex; align-items: center; gap: 16px; }
.serin-organizer-mark {
  width: 52px; height: 52px; border-radius: 50%;
  border: 2px solid var(--serin-gold); color: var(--serin-navy);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-weight: 700; font-size: 1.3rem;
  flex-shrink: 0;
}
.serin-organizer strong { display: block; color: var(--serin-navy); font-size: .98rem; }
.serin-organizer span { color: var(--ink-soft); font-size: .82rem; }

/* ===== Formulaire de candidature ===== */
.serin-form-section { background: var(--serin-offwhite); padding: 96px 0; }
.serin-form-card {
  max-width: 780px;
  margin: 0 auto;
  background: var(--serin-white);
  border: 1px solid rgba(18,40,92,.1);
  border-radius: var(--radius);
  padding: 44px;
  box-shadow: 0 16px 40px rgba(18,40,92,.08);
}
.serin-form-card .field label { color: var(--serin-navy); }
.serin-form-card .field input,
.serin-form-card .field select,
.serin-form-card .field textarea {
  background: var(--serin-offwhite);
  border-color: rgba(18,40,92,.15);
}
.serin-form-card .field input:focus,
.serin-form-card .field select:focus,
.serin-form-card .field textarea:focus {
  border-color: var(--serin-gold);
  background: var(--serin-white);
}
.serin-form-card .checkbox-option,
.serin-form-card .radio-option {
  background: var(--serin-offwhite);
  border-color: rgba(18,40,92,.15);
}
.serin-form-card .checkbox-option:hover,
.serin-form-card .radio-option:hover { border-color: var(--serin-gold); }
.serin-form-card .checkbox-option:has(input:checked),
.serin-form-card .radio-option:has(input:checked) { border-color: var(--serin-gold); background: var(--serin-white); }
.serin-form-card .checkbox-option input,
.serin-form-card .radio-option input { accent-color: var(--serin-gold); }

.serin-word-count {
  font-family: var(--font-ui);
  font-size: .78rem;
  color: var(--ink-soft);
  text-align: right;
  margin-top: -14px;
  margin-bottom: 22px;
}
.serin-word-count.over-limit { color: var(--serin-red); font-weight: 700; }

.serin-file-hint {
  font-size: .8rem;
  color: var(--ink-soft);
  margin-top: -14px;
  margin-bottom: 22px;
}

.serin-conditions {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .88rem;
  margin: 28px 0;
}
.serin-conditions input { margin-top: 4px; accent-color: var(--serin-gold); }

/* ===== Bandeau teaser (page d'accueil ORACLE) ===== */
.serin-teaser {
  background: linear-gradient(120deg, #12285C 0%, #1B3269 100%);
  padding: 48px 0;
}
.serin-teaser .container {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.serin-teaser-copy .eyebrow { color: #DCB35C; }
.serin-teaser-copy h3 { color: #fff; font-size: 1.5rem; margin-bottom: .3em; }
.serin-teaser-copy p { color: rgba(255,255,255,.8); margin: 0; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .serin-hero-grid { grid-template-columns: 1fr; }
  .serin-fact-card { max-width: 460px; }
  .serin-axes-grid { grid-template-columns: 1fr; }
  .serin-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}

@media (max-width: 640px) {
  .serin-hero { padding: 140px 0 60px; }
  .serin-hero::before { width: 30%; left: -18%; }
  .serin-hero::after { width: 9%; left: 4%; }
  .serin-countdown-grid { gap: 8px; }
  .serin-countdown-unit { min-width: 62px; }
  .serin-countdown-sep { display: none; }
  .serin-form-card { padding: 26px; }
  .serin-organizers-row { flex-direction: column; align-items: center; gap: 28px; }
}