/* ============================================================
   XFORCE PRO — Base partagée (variables, reset, halos, boutons)
   Palette : primaire #FF396F · fuchsia 354° · violet 305° · indigo 272°
   ============================================================ */

:root {
  /* Couleur primaire de référence */
  --primary: #ff396f;

  /* Fuchsia */
  --fuchsia-300: #fb7db5;
  --fuchsia-400: #eb4c9b;
  --fuchsia-500: #d80b84;
  --fuchsia-900: #420023;
  --fuchsia-950: #20000d;

  /* Violet */
  --violet-300: #c494f8;
  --violet-400: #ad6feb;
  --violet-500: #984ddb;
  --violet-900: #2b0b44;
  --violet-950: #120221;

  /* Indigo */
  --indigo-300: #91a8ff;
  --indigo-400: #7088f5;
  --indigo-500: #576ce6;
  --indigo-900: #121948;
  --indigo-950: #050723;

  /* Succès (vert) */
  --success: #22c55e;
  --success-600: #16a34a;

  /* Surfaces & texte (mode sombre) */
  --bg: #0b0714;
  --surface: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.10);
  --text: #f4f1f8;
  --text-muted: #a49bb8;

  --radius-lg: 20px;
  --radius-full: 999px;

  font-size: 16px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  /* Verrouillage "application" : la page ne défile pas et ne rebondit pas
     (comportement natif). Le défilement n'est autorisé qu'à l'intérieur des
     zones prévues (ex. .app-main sur le tableau de bord). */
  position: fixed;
  inset: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI Variable Display", "Segoe UI", system-ui,
    -apple-system, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ------------------------------------------------------------
   Écran mobile
   ------------------------------------------------------------ */

.screen {
  position: relative;
  height: 100%;
  max-width: 480px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  padding: max(24px, env(safe-area-inset-top))
           24px
           max(28px, env(safe-area-inset-bottom));
  isolation: isolate;
}

/* ------------------------------------------------------------
   Halos d'ambiance
   ------------------------------------------------------------ */

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: -1;
}

.glow--fuchsia {
  width: 340px;
  height: 340px;
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle,
    rgba(255, 57, 111, 0.28) 0%,
    rgba(216, 11, 132, 0.10) 55%,
    transparent 75%);
}

.glow--indigo {
  width: 420px;
  height: 420px;
  bottom: -12%;
  right: -20%;
  background: radial-gradient(circle,
    rgba(87, 108, 230, 0.18) 0%,
    rgba(18, 25, 72, 0.10) 55%,
    transparent 75%);
}

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

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 17px 20px;
  border-radius: var(--radius-lg);
  border: none;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  color: #fff;
  background: linear-gradient(120deg, var(--primary), var(--fuchsia-500));
  box-shadow: 0 8px 28px rgba(255, 57, 111, 0.35);
}

.btn--primary:hover {
  box-shadow: 0 10px 34px rgba(255, 57, 111, 0.5);
}

.btn--ghost {
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 57, 111, 0.4);
}

.btn--success {
  color: #fff;
  background: linear-gradient(120deg, var(--success), var(--success-600));
  box-shadow: 0 8px 28px rgba(34, 197, 94, 0.32);
}

.btn--success:hover {
  box-shadow: 0 10px 34px rgba(34, 197, 94, 0.48);
}

/* Accessibilité : réduire les animations si demandé */
@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
}