/* ============================================================
   ARENA — Style futuriste
   ============================================================ */

:root {
  --bg:        #05060f;
  --bg-2:      #0a0e22;
  --ink:       #eaf2ff;
  --ink-dim:   #8a96b8;
  --glass:     rgba(255, 255, 255, 0.05);
  --glass-brd: rgba(140, 170, 255, 0.18);
  --neon:      #36e2ff;   /* accent global (cyan) */
  --neon-2:    #7c5cff;   /* violet */
  --neon-3:    #ff3df0;   /* magenta */
  --good:      #38ffb0;
  --warn:      #ffd23d;
  --bad:       #ff4d6d;
  --accent:    var(--neon);   /* surchargé par le sport en cours */
  --accent-2:  var(--neon-2);
  --radius:    20px;
  --shadow:    0 20px 60px rgba(0, 0, 0, 0.55);
}

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

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Rajdhani', system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 800px at 50% -10%, #14193b 0%, transparent 60%),
    radial-gradient(900px 700px at 90% 110%, #1a0e2e 0%, transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  -webkit-font-smoothing: antialiased;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* -------- Décor animé -------- */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(120, 160, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 160, 255, 0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 75% at 50% 40%, #000 30%, transparent 100%);
  animation: gridDrift 18s linear infinite;
}
@keyframes gridDrift { to { background-position: 46px 46px; } }

.bg-orb {
  position: fixed; z-index: 0; pointer-events: none;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  animation: float 14s ease-in-out infinite;
}
.orb-1 { width: 420px; height: 420px; left: -120px; top: -90px;  background: #2a4bff; }
.orb-2 { width: 380px; height: 380px; right: -110px; top: 30%;   background: #b32cff; animation-delay: -4s; }
.orb-3 { width: 340px; height: 340px; left: 25%; bottom: -140px; background: #00d8c0; animation-delay: -8s; }
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(20px, -28px) scale(1.08); }
}

/* -------- Layout écrans -------- */
#app {
  position: relative; z-index: 1;
  height: 100%;
  display: flex; align-items: center; justify-content: center;
}
.screen {
  position: absolute; inset: 0;
  display: none;
  flex-direction: column;
  align-items: center; justify-content: center;
  padding: max(18px, env(safe-area-inset-top)) 18px max(18px, env(safe-area-inset-bottom));
  animation: screenIn 0.45s cubic-bezier(.2,.8,.2,1);
}
.screen.active { display: flex; }
@keyframes screenIn {
  from { opacity: 0; transform: translateY(14px) scale(.99); }
  to   { opacity: 1; transform: none; }
}

/* -------- Menu / Hero -------- */
.hero { text-align: center; margin-bottom: clamp(18px, 4vh, 40px); }
.logo {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(38px, 9vw, 78px);
  letter-spacing: 4px;
  line-height: 1;
  background: linear-gradient(90deg, #fff, var(--neon) 55%, var(--neon-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 22px rgba(54, 226, 255, 0.45));
}
.logo span {
  background: linear-gradient(90deg, var(--neon-3), var(--neon-2));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.tagline {
  margin-top: 12px;
  color: var(--ink-dim);
  font-size: clamp(14px, 3.4vw, 19px);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 600;
}

/* -------- Sélecteur de difficulté -------- */
.diff-wrap { text-align: center; margin-bottom: clamp(16px, 3.2vh, 30px); }
.diff-label {
  display: block;
  color: var(--ink-dim);
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase; font-weight: 700;
  margin-bottom: 9px;
}
.diff-select {
  display: inline-flex; gap: 5px;
  padding: 5px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  backdrop-filter: blur(10px);
}
.diff-btn {
  border: none; background: transparent;
  color: var(--ink-dim);
  font-family: 'Rajdhani', sans-serif; font-weight: 700;
  font-size: clamp(14px, 3.6vw, 16px); letter-spacing: 1px;
  padding: 9px clamp(16px, 5vw, 26px);
  border-radius: 999px; cursor: pointer;
  transition: color .2s, background .2s, box-shadow .2s;
}
.diff-btn:hover { color: var(--ink); }
.diff-btn.active {
  color: #04121a;
  background: linear-gradient(135deg, var(--neon), var(--neon-2));
  box-shadow: 0 6px 20px -6px var(--neon);
}

/* -------- Grille de sports -------- */
.sport-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(12px, 2.4vw, 20px);
  width: min(720px, 94vw);
}
.sport-card {
  position: relative;
  cursor: pointer;
  border: 1px solid var(--glass-brd);
  background:
    linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: var(--radius);
  padding: clamp(16px, 3.5vw, 26px);
  overflow: hidden;
  transition: transform .25s cubic-bezier(.2,.8,.2,1), box-shadow .25s, border-color .25s;
  text-align: left;
}
.sport-card::before {  /* halo coloré du sport */
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(120% 120% at 0% 0%, var(--card), transparent 60%);
  opacity: 0.22; transition: opacity .25s;
}
.sport-card:hover, .sport-card:focus-visible {
  transform: translateY(-6px);
  border-color: var(--card);
  box-shadow: 0 18px 50px rgba(0,0,0,.5), 0 0 40px -8px var(--card);
  outline: none;
}
.sport-card:hover::before { opacity: 0.4; }
.sport-card:active { transform: translateY(-2px) scale(.99); }

.sport-emoji {
  font-size: clamp(40px, 10vw, 58px);
  line-height: 1;
  filter: drop-shadow(0 6px 16px rgba(0,0,0,.5));
}
.sport-name {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: clamp(18px, 4.6vw, 24px);
  margin-top: 12px;
  letter-spacing: 1px;
}
.sport-tag {
  color: var(--ink-dim);
  font-size: clamp(12px, 3.2vw, 15px);
  font-weight: 600;
  letter-spacing: .5px;
}
.sport-best {
  margin-top: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 700;
  color: var(--card);
  background: rgba(0,0,0,.25);
  border: 1px solid var(--card);
  border-radius: 999px;
  padding: 4px 12px;
}

.menu-footer {
  margin-top: clamp(20px, 4vh, 38px);
  color: var(--ink-dim);
  font-size: 14px; letter-spacing: .5px;
}
.menu-footer b { color: var(--ink); }
.hint-mobile { display: none; }

/* -------- Bouton son -------- */
.mute-btn {
  position: fixed; z-index: 5;
  top: max(14px, env(safe-area-inset-top)); right: 14px;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--glass-brd);
  background: var(--glass);
  backdrop-filter: blur(10px);
  color: var(--ink);
  font-size: 18px; cursor: pointer;
  transition: transform .2s, border-color .2s;
}
.mute-btn:hover { transform: scale(1.08); border-color: var(--neon); }
.mute-btn.muted { opacity: .55; }

/* -------- Écran de jeu -------- */
#screen-game { justify-content: flex-start; padding-top: max(14px, env(safe-area-inset-top)); }

.game-hud {
  width: min(760px, 96vw);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
}
.hud-stats { display: flex; gap: 10px; }
.stat {
  min-width: 64px;
  text-align: center;
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  border-radius: 14px;
  padding: 6px 12px;
  backdrop-filter: blur(8px);
}
.stat-label { display: block; font-size: 10px; letter-spacing: 2px; color: var(--ink-dim); font-weight: 700; }
.stat-value { display: block; font-family: 'Orbitron', sans-serif; font-weight: 700; font-size: 20px; }
.stat.combo .stat-value { color: var(--warn); }

.ghost-btn {
  background: var(--glass);
  border: 1px solid var(--glass-brd);
  color: var(--ink);
  border-radius: 14px;
  padding: 9px 16px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700; font-size: 15px; letter-spacing: 1px;
  cursor: pointer;
  transition: border-color .2s, transform .15s;
}
.ghost-btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.ghost-btn.big { padding: 14px 22px; font-size: 16px; }

.canvas-wrap {
  position: relative;
  width: min(760px, 96vw);
  flex: 1 1 auto;
  margin: 12px 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--glass-brd);
  box-shadow: var(--shadow), inset 0 0 60px rgba(0,0,0,.4);
  background: radial-gradient(120% 90% at 50% 0%, #0c1330 0%, #060912 70%);
}
#gameCanvas { display: block; width: 100%; height: 100%; }

.prompt {
  position: absolute; top: 14px; left: 0; right: 0;
  text-align: center;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700; letter-spacing: 3px;
  font-size: clamp(15px, 4vw, 22px);
  text-transform: uppercase;
  color: var(--accent);
  text-shadow: 0 0 18px var(--accent);
  pointer-events: none;
  opacity: 0; transition: opacity .2s;
}
.prompt.show { opacity: 1; }

.feedback {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Orbitron', sans-serif;
  font-weight: 900; letter-spacing: 2px;
  font-size: clamp(26px, 8vw, 54px);
  text-align: center;
  pointer-events: none;
  opacity: 0;
}
.feedback.pop { animation: pop 1s cubic-bezier(.2,.9,.2,1); }
@keyframes pop {
  0%   { opacity: 0; transform: scale(.6); }
  20%  { opacity: 1; transform: scale(1.12); }
  70%  { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1); }
}

.game-controls { width: min(760px, 96vw); padding-bottom: max(10px, env(safe-area-inset-bottom)); }
.action-btn {
  width: 100%;
  border: none;
  border-radius: 16px;
  padding: 18px;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700; font-size: clamp(15px, 4vw, 19px); letter-spacing: 2px;
  color: #04121a;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 34px -8px var(--accent), inset 0 1px 0 rgba(255,255,255,.4);
  cursor: pointer;
  transition: transform .12s, filter .2s, box-shadow .2s;
}
.action-btn:hover { filter: brightness(1.08); }
.action-btn:active { transform: scale(.97); }
.action-btn.small { width: auto; padding: 14px 30px; }
.action-btn:disabled { opacity: .4; cursor: default; filter: grayscale(.4); }

/* -------- Écran résultats -------- */
.results-card {
  width: min(440px, 94vw);
  text-align: center;
  border: 1px solid var(--glass-brd);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.02));
  backdrop-filter: blur(18px);
  border-radius: 26px;
  padding: clamp(24px, 6vw, 38px);
  box-shadow: var(--shadow);
}
.res-grade {
  width: 96px; height: 96px; margin: 0 auto 8px;
  display: grid; place-items: center;
  font-family: 'Orbitron', sans-serif; font-weight: 900; font-size: 54px;
  border-radius: 50%;
  color: #04121a;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 50px -6px var(--accent);
}
.res-sport { font-family: 'Orbitron', sans-serif; font-size: 22px; letter-spacing: 1px; margin-top: 4px; }
.res-note { font-family: 'Orbitron', sans-serif; font-weight: 900; font-size: 60px; margin: 6px 0 4px; }
.res-note-max { font-size: 24px; color: var(--ink-dim); }
.res-lines { margin: 18px 0; display: grid; gap: 8px; }
.res-line {
  display: flex; justify-content: space-between;
  padding: 10px 14px;
  background: rgba(0,0,0,.22);
  border-radius: 12px;
  font-weight: 600; font-size: 15px;
}
.res-line span { color: var(--ink-dim); }
.res-line b { font-family: 'Orbitron', sans-serif; }
.res-msg { color: var(--ink-dim); min-height: 22px; margin-bottom: 18px; font-weight: 600; }
.res-actions { display: flex; gap: 12px; justify-content: center; align-items: center; flex-wrap: wrap; }

/* -------- Mobile -------- */
@media (hover: none) and (pointer: coarse) {
  .hint-desktop { display: none; }
  .hint-mobile  { display: inline; }
}
@media (max-width: 380px) {
  .stat { min-width: 54px; padding: 5px 8px; }
  .stat-value { font-size: 17px; }
}
@media (min-height: 760px) and (min-width: 720px) {
  .sport-grid { grid-template-columns: repeat(4, 1fr); width: min(900px, 94vw); }
}