/* =====================================================================
   PAGE VISA USA — France-USA-Net.Com
   Palette USA/France, liseré drapeau animé, cards filtrables, responsive
   ===================================================================== */

.visas-page {
  --visa-blue-dark: #0a2463;
  --visa-blue: #3a86ff;
  --visa-red: #d7263d;
  --visa-red-bright: #ef233c;
  --visa-white: #ffffff;
  --visa-surface: #f8f9fa;
  --visa-ink: #0f172a;
  --visa-muted: #475569;
  --visa-border: rgba(10, 36, 99, 0.12);
  --visa-shadow: 0 8px 32px rgba(10, 36, 99, 0.1);
  --visa-shadow-hover: 0 16px 48px rgba(10, 36, 99, 0.16);
  --visa-radius: clamp(12px, 2vw, 18px);
  --visa-transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);

  /* Dégradé drapeau USA pour le liseré des cards (réutilisable) */
  --visa-us-flag-gradient: linear-gradient(
    90deg,
    var(--visa-blue-dark) 0%,
    var(--visa-blue-dark) 28%,
    var(--visa-white) 28%,
    var(--visa-white) 38%,
    var(--visa-red) 38%,
    var(--visa-red) 62%,
    var(--visa-white) 62%,
    var(--visa-white) 72%,
    var(--visa-blue-dark) 72%,
    var(--visa-blue-dark) 100%
  );

  --visa-cat-tourism: #0891b2;
  --visa-cat-work: #ea580c;
  --visa-cat-study: #4f46e5;
  --visa-cat-immigration: #059669;
  --visa-cat-exchange: #db2777;
}

/* ---------------------------------------------------------------------
   Hero spécifique
   --------------------------------------------------------------------- */
.visas-page .visas-hero {
  padding-block: clamp(2rem, 1.5rem + 3vw, 4rem);
}

.visas-page .visas-hero__media {
  max-width: min(920px, 100%);
  margin: 0 auto clamp(1.5rem, 1rem + 2vw, 2.5rem);
  border-radius: var(--visa-radius);
  overflow: hidden;
  box-shadow: var(--visa-shadow);
  border: 1px solid var(--visa-border);
}

.visas-page .visas-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.visas-page .visas-hero__intro {
  text-align: center;
  max-width: 72ch;
  margin-inline: auto;
}

.visas-page .visas-hero__eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--visa-blue);
  margin-bottom: 0.75rem;
}

.visas-page .visas-hero .hero-badges {
  justify-content: center;
  margin-top: 1.25rem;
}

/* ---------------------------------------------------------------------
   Enveloppe principale
   --------------------------------------------------------------------- */
.visas-page-wrap {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 2vw, 2rem) clamp(2rem, 1rem + 3vw, 4rem);
}

.visas-page .visas-intro {
  max-width: 78ch;
  margin: 0 auto clamp(2rem, 1rem + 2vw, 3rem);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--visa-muted);
}

.visas-page .visas-intro a {
  color: var(--visa-blue-dark);
  font-weight: 600;
}

.visas-page .visas-intro a:hover {
  color: var(--visa-blue);
}

/* ---------------------------------------------------------------------
   Filtres
   --------------------------------------------------------------------- */
.visas-filter-section {
  background: var(--visa-white);
  border-radius: var(--visa-radius);
  padding: clamp(1.15rem, 1rem + 1vw, 1.75rem);
  margin-bottom: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  box-shadow: var(--visa-shadow);
  border: 1px solid var(--visa-border);
}

.visas-filter-title {
  margin: 0 0 1rem;
  font-size: clamp(1rem, 0.9rem + 0.5vw, 1.15rem);
  font-weight: 700;
  color: var(--visa-blue-dark);
}

.visas-filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.visas-filter-btn {
  padding: 0.55rem 1.15rem;
  border: 2px solid var(--visa-border);
  background: var(--visa-white);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--visa-muted);
  cursor: pointer;
  transition: border-color var(--visa-transition), color var(--visa-transition),
    background var(--visa-transition), transform var(--visa-transition),
    box-shadow var(--visa-transition);
}

.visas-filter-btn:hover {
  border-color: var(--visa-blue);
  color: var(--visa-blue-dark);
  transform: translateY(-2px);
}

.visas-filter-btn:focus-visible {
  outline: 3px solid var(--visa-blue);
  outline-offset: 2px;
}

.visas-filter-btn.active {
  background: linear-gradient(135deg, var(--visa-blue-dark), var(--visa-blue));
  border-color: var(--visa-blue-dark);
  color: var(--visa-white);
  box-shadow: 0 4px 16px rgba(10, 36, 99, 0.25);
}

.visas-filter-status {
  margin: 0.85rem 0 0;
  font-size: 0.88rem;
  color: var(--visa-muted);
  min-height: 1.4em;
}

/* ---------------------------------------------------------------------
   Grille de cards
   --------------------------------------------------------------------- */
.visas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr));
  gap: clamp(1.25rem, 1rem + 1.5vw, 2rem);
  margin-bottom: clamp(2rem, 1rem + 3vw, 3.5rem);
}

.visas-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--visa-white);
  border-radius: var(--visa-radius);
  overflow: hidden;
  box-shadow: var(--visa-shadow);
  border: 1px solid var(--visa-border);
  transition: transform var(--visa-transition), box-shadow var(--visa-transition);
}

.visas-card.is-hidden {
  display: none;
}

.visas-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--visa-shadow-hover);
}

/* Liseré drapeau USA (4px) avec animation */
.visas-card__stripe {
  height: 4px;
  width: 100%;
  flex: none;
  background: var(--visa-us-flag-gradient);
  background-size: 200% 100%;
  animation: visa-flag-stripe 10s linear infinite;
}

.visas-card:hover .visas-card__stripe {
  animation-duration: 4s;
}

@keyframes visa-flag-stripe {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 200% 50%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .visas-card__stripe {
    animation: none;
    background-size: 100% 100%;
  }
  .visas-card:hover {
    transform: none;
  }
  .visas-card[data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Décalage d'apparition léger via variable JS */
.visas-card[data-reveal].is-visible {
  transition-delay: calc(var(--visa-stagger, 0) * 60ms);
}

.visas-card__head {
  padding: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  background: linear-gradient(180deg, var(--visa-surface) 0%, var(--visa-white) 100%);
  border-bottom: 1px solid var(--visa-border);
}

.visas-cat-badge {
  display: inline-block;
  padding: 0.22rem 0.7rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.55rem;
}

.visas-cat-badge.b-tourism {
  background: rgba(8, 145, 178, 0.12);
  color: var(--visa-cat-tourism);
}
.visas-cat-badge.b-work {
  background: rgba(234, 88, 12, 0.12);
  color: var(--visa-cat-work);
}
.visas-cat-badge.b-study {
  background: rgba(79, 70, 229, 0.12);
  color: var(--visa-cat-study);
}
.visas-cat-badge.b-immigration {
  background: rgba(5, 150, 105, 0.12);
  color: var(--visa-cat-immigration);
}
.visas-cat-badge.b-exchange {
  background: rgba(219, 39, 119, 0.12);
  color: var(--visa-cat-exchange);
}
.visas-cat-badge.b-temporary {
  background: rgba(100, 116, 139, 0.15);
  color: #64748b;
}

.visas-card__head h2 {
  margin: 0 0 0.45rem;
  font-size: clamp(1.15rem, 1rem + 0.4vw, 1.35rem);
  line-height: 1.3;
  color: var(--visa-ink);
}

.visas-code {
  display: inline-block;
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--visa-blue-dark);
  background: rgba(10, 36, 99, 0.06);
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
}

.visas-card__body {
  flex: 1;
  padding: clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  color: var(--visa-muted);
}

.visas-fee-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--visa-border);
}

.visas-fee-label {
  font-size: 0.82rem;
  color: var(--visa-muted);
  width: 100%;
}

.visas-fee-value {
  font-size: clamp(1.35rem, 1.1rem + 0.8vw, 1.65rem);
  font-weight: 800;
  color: var(--visa-blue-dark);
}

.visas-fee-note {
  font-size: 0.76rem;
  color: var(--visa-muted);
  width: 100%;
  font-style: italic;
}

.visas-card__block {
  margin-bottom: 1rem;
}

.visas-card__block:last-child {
  margin-bottom: 0;
}

.visas-card__block h3 {
  margin: 0 0 0.45rem;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--visa-blue-dark);
}

.visas-card__block p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.65;
}

.visas-card__block ul,
.visas-card__block ol {
  margin: 0;
  padding-left: 1.15rem;
}

.visas-card__block li {
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  line-height: 1.55;
}

.visas-duration {
  background: var(--visa-surface);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  border: 1px solid var(--visa-border);
}

.visas-duration strong {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--visa-muted);
  margin-bottom: 0.25rem;
}

.visas-duration span {
  font-weight: 600;
  color: var(--visa-ink);
  font-size: 0.9rem;
  line-height: 1.5;
}

.visas-card__foot {
  padding: clamp(0.85rem, 0.75rem + 0.5vw, 1.1rem) clamp(1.1rem, 1rem + 0.5vw, 1.35rem);
  background: var(--visa-surface);
  border-top: 1px solid var(--visa-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
}

.visas-time {
  font-size: 0.8rem;
  color: var(--visa-muted);
  flex: 1 1 180px;
  line-height: 1.45;
}

.visas-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.visas-official-btn,
.visas-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.48rem 0.95rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--visa-transition), box-shadow var(--visa-transition);
}

.visas-official-btn {
  background: linear-gradient(135deg, var(--visa-red), var(--visa-red-bright));
  color: var(--visa-white) !important;
  border: none;
}

.visas-official-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(215, 38, 61, 0.3);
}

.visas-card-link {
  background: transparent;
  color: var(--visa-blue-dark) !important;
  border: 2px solid var(--visa-blue-dark);
}

.visas-card-link:hover {
  background: var(--visa-blue-dark);
  color: var(--visa-white) !important;
}

.visas-official-btn:focus-visible,
.visas-card-link:focus-visible {
  outline: 3px solid var(--visa-blue);
  outline-offset: 2px;
}

/* ---------------------------------------------------------------------
   Section procédure (HowTo)
   --------------------------------------------------------------------- */
.visas-howto {
  background: linear-gradient(160deg, var(--visa-blue-dark) 0%, #1e3a8a 100%);
  color: var(--visa-white);
  border-radius: var(--visa-radius);
  padding: clamp(1.75rem, 1.25rem + 2vw, 3rem);
  margin-bottom: clamp(2rem, 1rem + 2vw, 3rem);
  box-shadow: var(--visa-shadow);
}

.visas-howto h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.45rem, 1.2rem + 1vw, 2rem);
  color: var(--visa-white);
}

.visas-howto__lead {
  margin: 0 0 1.75rem;
  max-width: 65ch;
  font-size: 1.02rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
}

.visas-howto__steps {
  display: grid;
  gap: 1rem;
  counter-reset: visa-step;
  list-style: none;
  margin: 0;
  padding: 0;
}

.visas-howto__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.15rem 1.25rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  counter-increment: visa-step;
}

.visas-howto__step::before {
  content: counter(visa-step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--visa-red);
  color: var(--visa-white);
  font-weight: 800;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.visas-howto__step h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  color: var(--visa-white);
}

.visas-howto__step p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.9);
}

.visas-howto__step a {
  color: #93c5fd;
  font-weight: 600;
}

.visas-howto__step a:hover {
  color: var(--visa-white);
}

/* ---------------------------------------------------------------------
   Blocs info + notes
   --------------------------------------------------------------------- */
.visas-info-section {
  background: var(--visa-white);
  border-radius: var(--visa-radius);
  padding: clamp(1.5rem, 1rem + 2vw, 2rem);
  margin-bottom: 1.5rem;
  box-shadow: var(--visa-shadow);
  border: 1px solid var(--visa-border);
}

.visas-info-section h2 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem);
  color: var(--visa-blue-dark);
}

.visas-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 1.15rem;
}

.visas-info-card {
  background: var(--visa-surface);
  border-radius: 12px;
  padding: 1.2rem;
  border: 1px solid var(--visa-border);
  transition: transform var(--visa-transition), box-shadow var(--visa-transition);
}

.visas-info-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--visa-shadow);
}

.visas-info-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.02rem;
  color: var(--visa-blue-dark);
}

.visas-info-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--visa-muted);
}

.visas-info-card a {
  color: var(--visa-blue-dark);
  font-weight: 600;
}

.visas-fee-footnote {
  font-size: 0.85rem;
  color: var(--visa-muted);
  margin: 0 0 1.5rem;
  line-height: 1.6;
  max-width: 85ch;
}

.visas-cta-band {
  text-align: center;
  padding: clamp(2rem, 1.5rem + 2vw, 3rem);
  background: linear-gradient(135deg, var(--visa-surface) 0%, var(--visa-white) 100%);
  border-radius: var(--visa-radius);
  border: 1px solid var(--visa-border);
}

.visas-cta-band h2 {
  margin: 0 0 0.75rem;
  color: var(--visa-blue-dark);
}

.visas-cta-band p {
  max-width: 55ch;
  margin: 0 auto 1.25rem;
  color: var(--visa-muted);
}

.visas-cta-band .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
}

/* ---------------------------------------------------------------------
   Responsive — 4 paliers
   --------------------------------------------------------------------- */
@media (max-width: 480px) {
  .visas-filter-buttons {
    justify-content: center;
  }

  .visas-filter-btn {
    flex: 1 1 calc(50% - 0.55rem);
    text-align: center;
    padding-inline: 0.65rem;
  }

  .visas-card__foot {
    flex-direction: column;
    align-items: stretch;
  }

  .visas-card__actions {
    flex-direction: column;
  }

  .visas-official-btn,
  .visas-card-link {
    justify-content: center;
    width: 100%;
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .visas-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1280px) {
  .visas-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1281px) {
  .visas-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .visas-howto__steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .visas-filter-btn:hover,
  .visas-info-card:hover,
  .visas-official-btn:hover {
    transform: none;
  }
}