/* Piste C : Disco */
:root {
  --night: #0A0610;
  --night-2: #140A1C;
  --plum: #3B1234;
  --pink: #FF4FA3;
  --pink-2: #FF8CC6;
  --silver: #D9D9E3;
  --silver-2: #9A98A8;
  --text: #F2EEF5;
  --muted: #A79FB0;
  --display: "Monoton", "Syncopate", sans-serif;
  --wide: "Syncopate", "Helvetica Neue", Arial, sans-serif;
  --sans: "Manrope", "Helvetica Neue", Arial, sans-serif;
  --chrome: linear-gradient(180deg, #FFFFFF 0%, #CFCFDA 38%, #8E8C9C 52%, #F4F3F8 64%, #B8B6C4 100%);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--night); color: var(--text); font-family: var(--sans); font-size: 17px; line-height: 1.55; overflow-x: hidden; }
img { display: block; max-width: 100%; }
h1, h2, h3, p, figure, ol { margin: 0; padding: 0; }

/* Paillettes : points lumineux en CSS, scintillement léger */
.sparkle { position: relative; isolation: isolate; }
.sparkle::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 18%, #fff 50%, #0000),
    radial-gradient(1px 1px at 33% 72%, #fff 50%, #0000),
    radial-gradient(1.6px 1.6px at 58% 34%, #ffd6ec 50%, #0000),
    radial-gradient(1px 1px at 81% 61%, #fff 50%, #0000),
    radial-gradient(1.2px 1.2px at 92% 12%, #fff 50%, #0000),
    radial-gradient(1px 1px at 45% 92%, #ffd6ec 50%, #0000),
    radial-gradient(1.3px 1.3px at 70% 85%, #fff 50%, #0000),
    radial-gradient(1px 1px at 22% 48%, #fff 50%, #0000);
  background-size: 260px 260px, 340px 340px, 420px 420px, 300px 300px, 380px 380px, 460px 460px, 520px 520px, 280px 280px;
  opacity: .55; animation: twinkle 5s ease-in-out infinite alternate; }
@keyframes twinkle { from { opacity: .3; } to { opacity: .7; } }

.kicker { font-family: var(--wide); font-weight: 700; font-size: 12px; letter-spacing: .32em; text-transform: uppercase; color: var(--pink); }

/* Sections */
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 clamp(20px, 4.5vw, 72px); }
.sec-head h2 { margin-top: 16px; font-family: var(--display); font-weight: 400; font-size: clamp(40px, 4.8vw, 72px); line-height: 1.1; word-spacing: .32em; color: #fff; background: var(--chrome); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.program { padding: clamp(72px, 8vw, 110px) 0 clamp(56px, 6vw, 90px); background: linear-gradient(180deg, var(--night), var(--night-2)); }
.tracks { list-style: none; margin-top: clamp(40px, 5vw, 64px); border-top: 1px solid rgba(255, 255, 255, .14); }
.track { display: grid; grid-template-columns: 64px 300px minmax(0, 1fr) 270px; gap: 24px; align-items: center; padding: 34px 0; border-bottom: 1px solid rgba(255, 255, 255, .14); }
.t-num { font-family: var(--wide); font-weight: 700; font-size: 13px; letter-spacing: .14em; color: var(--night); background: var(--chrome); width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; }
.t-date { font-family: var(--wide); font-weight: 700; font-size: clamp(20px, 2vw, 28px); letter-spacing: .02em; text-transform: uppercase; line-height: 1.1; }
.t-date span { display: block; margin-bottom: 8px; font-size: 11px; letter-spacing: .3em; color: var(--pink); }
.t-body h3 { font-family: var(--sans); font-weight: 700; font-size: clamp(24px, 2.2vw, 32px); line-height: 1.1; letter-spacing: -.01em; color: #fff; }
.t-body p { margin-top: 6px; color: var(--silver); }
.t-tag { justify-self: end; font-family: var(--wide); font-size: 10px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--pink-2); border: 1px solid rgba(255, 79, 163, .55); padding: 9px 14px 8px; border-radius: 999px; white-space: nowrap; }

.infos { padding: clamp(80px, 9vw, 130px) 0; background: var(--night-2); }
.cards { margin-top: clamp(40px, 5vw, 64px); display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.card { position: relative; padding: clamp(28px, 3.4vw, 44px); border-radius: 22px; background: linear-gradient(160deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .015) 60%); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .13); overflow: hidden; }
.card::after { content: ""; position: absolute; right: -60px; top: -60px; width: 200px; height: 200px; border-radius: 50%; background: radial-gradient(circle, rgba(255, 79, 163, .25), #0000 70%); }
.card h3 { margin-top: 28px; font-family: var(--wide); font-weight: 700; font-size: clamp(24px, 2.4vw, 34px); letter-spacing: .04em; text-transform: uppercase; }
.card h3 + p { margin-top: 12px; font-size: 19px; color: var(--silver); }
.card .t-tag { display: inline-block; margin-top: 22px; }

/* Pied de page avec boule à facettes */
.foot { text-align: center; padding: 0 20px 44px; background: radial-gradient(70% 60% at 50% 30%, rgba(255, 79, 163, .14), #0000 70%), linear-gradient(180deg, var(--night-2), var(--night) 40%); overflow: hidden; }
.ball { position: relative; width: 180px; height: 180px; margin: 0 auto; padding-top: 0; }
.ball::before { content: ""; position: absolute; left: 50%; top: -400px; height: 410px; width: 1px; background: linear-gradient(#0000, var(--silver-2)); }
.ball { margin-top: 120px; border-radius: 50%;
  background:
    radial-gradient(circle at 34% 30%, rgba(255, 255, 255, .95) 0 3%, rgba(255, 255, 255, .25) 9%, #0000 24%),
    radial-gradient(circle at 70% 72%, rgba(255, 79, 163, .55), #0000 40%),
    repeating-linear-gradient(0deg, rgba(0, 0, 0, .55) 0 1px, #0000 1px 14px),
    repeating-linear-gradient(90deg, rgba(0, 0, 0, .55) 0 1px, #0000 1px 14px),
    conic-gradient(rgba(255, 255, 255, .22) 25%, #0000 0 50%, rgba(255, 255, 255, .22) 0 75%, #0000 0) 0 0 / 28px 28px,
    conic-gradient(rgba(0, 0, 0, .18) 25%, #0000 0 50%, rgba(0, 0, 0, .18) 0 75%, #0000 0) 14px 0 / 42px 42px,
    radial-gradient(circle at 36% 30%, #FFFFFF 0%, #D6D5E0 22%, #9896A8 52%, #4A4757 82%, #24212C 100%);
  box-shadow: inset -22px -26px 40px rgba(0, 0, 0, .65), inset 10px 12px 26px rgba(255, 255, 255, .25), 0 0 80px rgba(255, 79, 163, .35); }
.ball i { position: absolute; inset: 0; border-radius: 50%; background: repeating-linear-gradient(45deg, #0000 0 22px, rgba(255, 255, 255, .12) 22px 24px); mix-blend-mode: screen; }
.foot-big { margin-top: 64px; font-family: var(--display); font-weight: 400; font-size: clamp(48px, 8.4vw, 132px); line-height: 1.05; word-spacing: .3em; color: var(--pink); text-shadow: 0 0 24px rgba(255, 79, 163, .65), 0 0 64px rgba(255, 79, 163, .35); }
.foot-sub { margin-top: 18px; font-family: var(--wide); font-weight: 700; font-size: 14px; letter-spacing: .3em; text-transform: uppercase; color: var(--silver); }
.foot-sign { margin-top: clamp(72px, 8vw, 120px); font-family: var(--wide); font-size: 10px; font-weight: 700; letter-spacing: .26em; text-transform: uppercase; color: var(--muted); }

@media (prefers-reduced-motion: reduce) {
  .sparkle::before { animation: none; }
}

/* Mobile */
@media (max-width: 900px) {
  .track { grid-template-columns: 46px 1fr; gap: 14px 16px; align-items: start; padding: 28px 0; }
  .t-num { grid-row: 1 / span 3; }
  .t-date, .t-body, .t-tag { grid-column: 2; }
  .t-tag { justify-self: start; white-space: normal; letter-spacing: .12em; font-size: 9.5px; }
  .cards { grid-template-columns: 1fr; }
  .ball { width: 130px; height: 130px; margin-top: 100px; }
  .foot-big { font-size: 13vw; }
  .foot-sub { font-size: 12px; letter-spacing: .2em; }
  .foot-sign { line-height: 2.2; }
}