/* ==========================================================================
   DEAD DROP — Reset, layout mobile-first 100dvh & accessibilité (§11)
   ========================================================================== */

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

[x-cloak] {
  display: none !important;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  background-color: var(--bg-main);
  color: var(--text-primary);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  padding-top: env(safe-area-inset-top, 0px);
  padding-right: env(safe-area-inset-right, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  padding-left: env(safe-area-inset-left, 0px);
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.5;
  overflow-x: hidden;
  filter: var(--state-filter);
  transition: filter var(--transition-state), background-color var(--transition-state);
}

/* Scanlines très légères (< 4 % d'opacité), désactivées si prefers-reduced-motion (§11) */
.scanline-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  opacity: 0.03;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0px,
    transparent 2px,
    #ffffff 3px,
    transparent 4px
  );
}

@media (prefers-reduced-motion: reduce) {
  .scanline-overlay {
    display: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Conteneur principal centré mobile-first (§11) */
.app-shell {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Sur tablette/desktop, élargir pour le lobby à deux colonnes (§11) */
@media (min-width: 768px) {
  .app-shell {
    max-width: 860px;
    padding: var(--space-lg);
  }
}

/* Typographie (§11) */
h1,
h2,
h3,
.brand-title,
.screen-heading,
.section-title,
.dossier-label,
.mission-label,
.phase-title {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0;
}

.screen-heading {
  font-size: clamp(1.2rem, 4vw, 1.5rem);
  font-weight: 700;
  color: var(--text-primary);
}

.section-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.dossier-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
}

.body-copy {
  margin: 0;
  font-size: 0.98rem;
  color: var(--text-primary);
}

.muted-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.hint-text {
  margin: 0;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Piles verticales utilitaires */
.stack-sm {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.stack-md {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* Focus clavier visible partout (§11) */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}