:root{
  --navy:#0B3D91; --blue:#1E6FD9; --gold:#E0A400;
  --bg:#0e1530; --panel:#15204a; --text:#eef2ff; --muted:#9aa6c7;
  --green:#25D366; --red:#e54b4b;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  min-height:100vh}
button{font:inherit;cursor:pointer}
a{color:var(--blue)}
#app{max-width:560px;margin:0 auto;padding:20px;padding-bottom:60px}

h1{margin:0 0 4px;font-size:22px}
h2{margin:18px 0 8px;font-size:16px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.muted{color:var(--muted)}
.card{background:var(--panel);border-radius:14px;padding:16px;margin-bottom:14px;
  box-shadow:0 1px 3px rgba(0,0,0,.3)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.btn{background:var(--blue);color:white;border:0;border-radius:10px;padding:12px 18px;
  font-weight:600}
.btn.secondary{background:transparent;border:1px solid #2a3a78;color:var(--text)}
.btn.gold{background:var(--gold);color:#1a1100}
.btn.green{background:var(--green);color:#062b13}
.btn.red{background:var(--red)}
.btn[disabled]{opacity:.5;cursor:not-allowed}

input,select,textarea{background:#0a1130;color:var(--text);border:1px solid #2a3a78;
  border-radius:10px;padding:10px 12px;font:inherit;width:100%}

.kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.kpi .b{background:#0a1130;border-radius:10px;padding:10px;text-align:center}
.kpi .v{font-size:20px;font-weight:700}
.kpi .l{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}

/* Cercle qui pulse */
.session-stage{display:flex;flex-direction:column;align-items:center;
  justify-content:center;min-height:60vh;gap:16px}
.pulse-wrap{position:relative;width:280px;height:280px;display:flex;
  align-items:center;justify-content:center}
.pulse{position:absolute;inset:0;border-radius:50%;
  background:radial-gradient(circle,#1E6FD9 0%,#0B3D91 70%);
  transform:scale(.55);transition:transform linear,background-color .3s}
.pulse.contracting{background:radial-gradient(circle,#E0A400 0%,#7a4d00 70%)}
.pulse.relaxing{background:radial-gradient(circle,#1E6FD9 0%,#0B3D91 70%)}
.pulse.idle{background:radial-gradient(circle,#2a3a78 0%,#15204a 70%)}
.pulse-label{position:relative;z-index:1;font-size:34px;font-weight:700;
  text-transform:uppercase;letter-spacing:.1em}
.pulse-counter{position:absolute;bottom:-10px;width:100%;text-align:center;
  font-size:14px;color:var(--muted)}
.session-meta{text-align:center}
.session-meta .ex{font-size:18px;font-weight:600}
.session-meta .progress{color:var(--muted);font-size:13px;margin-top:4px}

/* Mode discret = écran noir */
.discreet body{background:#000}
.discreet #app{visibility:hidden}
.discreet .session-stage{visibility:visible;background:#000;color:#000}
.discreet .pulse,.discreet .pulse-label,.discreet .session-meta{visibility:hidden}

.list .item{display:flex;justify-content:space-between;padding:8px 0;
  border-bottom:1px solid #2a3a78;font-size:13px}
.list .item:last-child{border-bottom:0}
.tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:8px;
  background:#0a1130;color:var(--muted);margin-left:6px}

.tabs{display:flex;gap:6px;margin-bottom:14px}
.tab{flex:1;padding:10px;text-align:center;background:#0a1130;
  border-radius:10px;color:var(--muted);font-weight:600;font-size:13px;
  border:0}
.tab.active{background:var(--navy);color:white}

.note{font-size:13px;color:var(--muted);line-height:1.5}
.warn{background:#3d2a0a;border:1px solid #7a4d00;border-radius:10px;
  padding:10px;font-size:13px;color:#ffd97a}
.success{background:#0a3d1f;border:1px solid #1f7a3d;border-radius:10px;
  padding:10px;font-size:13px;color:#7affb0}

.footer{text-align:center;color:var(--muted);font-size:11px;margin-top:24px}