:root{
  --bg:#0e131a;
  --card:#141A22;
  --text:#EAF2F1;
  --muted:#96A3A1;
  --accent:#0A756E;
  --accent-2:#15A399;
  --danger:#D9534F;
  --shadow: 0 8px 20px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%; background:var(--bg); color:var(--text); font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,"Helvetica Neue",Arial,"Noto Sans",sans-serif}
h1,h2,h3{margin:.2rem 0 1rem}
h1{font-size:1.3rem}
h2{font-size:1.1rem}
.app-header, .app-footer{position:sticky;left:0;right:0;background:linear-gradient(180deg, rgba(10,117,110,.2), rgba(10,117,110,0));z-index:10}
.app-header{top:0;display:flex;align-items:center;justify-content:space-between;padding:.75rem 1rem}
.app-footer{bottom:0;padding:.5rem 1rem;border-top:1px solid rgba(255,255,255,.06);backdrop-filter: blur(6px);}

.title{display:flex;gap:.5rem;align-items:center}
.title .logo{font-size:1.5rem}
.ghost{background:transparent;border:1px solid rgba(255,255,255,.2);color:var(--text);padding:.5rem .75rem;border-radius:.6rem}
.primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));border:none;color:white;padding:.6rem 1rem;border-radius:.6rem;box-shadow:var(--shadow)}
.secondary{background:#28323F;border:none;color:white;padding:.6rem 1rem;border-radius:.6rem}
.danger{background:var(--danger);border:none;color:white;padding:.6rem 1rem;border-radius:.6rem}
.small{padding:.45rem .7rem;font-size:.95rem}

main{padding: .75rem; display:grid; gap: .75rem}
.card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius: 14px; padding: .9rem; box-shadow: var(--shadow)}
.card.highlight{border-color: rgba(21,163,153,.6)}

.grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}
@media (max-width: 600px){ .grid{grid-template-columns:1fr} }

label{display:flex;flex-direction:column;gap:.35rem;font-size:.95rem}
input[type="number"], select, textarea{width:100%;background:#0f141b;color:var(--text);border:1px solid rgba(255,255,255,.12);border-radius:.5rem;padding:.6rem}
input[type="checkbox"]{accent-color: var(--accent)}
textarea{min-height:88px;resize:vertical}

.timer .display{display:flex;flex-direction:column;gap:.4rem;margin-bottom:.6rem}
.timer .label{font-size:1.1rem;color:#D1FFFA}
.timer .time{font-variant-numeric:tabular-nums;font-size:2.2rem}
.timer .targets{color:#B8FFFA}
.timer .next{color:var(--muted)}
.controls{display:flex;gap:.5rem;flex-wrap:wrap}
#progressBar{height:10px;background:#0f141b;border-radius:99px;overflow:hidden;border:1px solid rgba(255,255,255,.08);margin-top:.4rem}
#progressBar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2))}

.muted{color:var(--muted)}
ol{padding-left:1.2rem}