@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Space+Grotesk:wght@400;500;600;700&display=swap');

  :root{
    --ink:#14151a;
    --paper:#f6f4ef;
    --card:#ffffff;
    --line:#e4e0d6;
    --amber:#e8a33d;
    --amber-deep:#c97f1e;
    --red-corner:#b3352a;
    --green:#3f7a52;
    --muted:#726f66;
  }
  *{box-sizing:border-box;}
  body{margin:0;padding:0;background:transparent;}
  .app{
    font-family:'Space Grotesk',sans-serif;
    color:var(--ink);
    max-width:760px;
    margin:0 auto;
    padding:18px 16px 60px;
  }
  .masthead{
    display:flex;
    align-items:baseline;
    justify-content:space-between;
    border-bottom:4px solid var(--ink);
    padding-bottom:10px;
    margin-bottom:18px;
  }
  .masthead h1{
    font-family:'Bebas Neue',sans-serif;
    font-size:34px;
    letter-spacing:1px;
    margin:0;
    line-height:0.9;
  }
  .masthead .round{
    font-size:11px;
    text-transform:uppercase;
    letter-spacing:2px;
    color:var(--muted);
    font-weight:600;
  }
  .bell{
    width:10px;height:10px;border-radius:50%;
    background:var(--amber);
    display:inline-block;
    margin-right:6px;
    box-shadow:0 0 0 3px rgba(232,163,61,.25);
  }

  .card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:10px;
    padding:16px;
    margin-bottom:14px;
  }
  .card h2{
    font-family:'Bebas Neue',sans-serif;
    font-size:19px;
    letter-spacing:0.5px;
    margin:0 0 12px;
    display:flex;
    align-items:center;
    gap:8px;
  }
  .card h2 .tag{
    background:var(--ink);
    color:var(--paper);
    font-family:'Space Grotesk',sans-serif;
    font-size:10px;
    letter-spacing:1px;
    text-transform:uppercase;
    padding:3px 8px;
    border-radius:20px;
    font-weight:600;
  }

  label{
    font-size:11px;
    text-transform:uppercase;
    letter-spacing:0.6px;
    color:var(--muted);
    font-weight:600;
    display:block;
    margin-bottom:4px;
  }
  input, select{
    width:100%;
    font-family:'Space Grotesk',sans-serif;
    font-size:14px;
    padding:9px 10px;
    border:1.5px solid var(--line);
    border-radius:7px;
    background:#fcfbf8;
    color:var(--ink);
    outline:none;
  }
  input:focus, select:focus{border-color:var(--amber-deep);}
  .row{display:grid; gap:10px; margin-bottom:10px;}
  .row.two{grid-template-columns:1fr 1fr;}
  .row.three{grid-template-columns:1.4fr 0.8fr 0.8fr;}

  button{
    font-family:'Space Grotesk',sans-serif;
    font-weight:700;
    font-size:13px;
    letter-spacing:0.3px;
    border:none;
    border-radius:7px;
    padding:11px 16px;
    cursor:pointer;
    transition:transform .08s ease, opacity .15s ease;
  }
  button:active{transform:scale(0.97);}
  .btn-primary{background:var(--ink); color:var(--paper); width:100%;}
  .btn-amber{background:var(--amber); color:var(--ink); width:100%;}
  .btn-ghost{background:transparent; color:var(--muted); border:1.5px solid var(--line); padding:7px 10px; font-size:12px;}
  .btn-danger-ghost{background:transparent; color:var(--red-corner); border:1.5px solid #e9c9c4; padding:6px 9px; font-size:11px;}

  .student-item{
    border:1px solid var(--line);
    border-radius:8px;
    padding:10px 12px;
    margin-bottom:8px;
    background:#fcfbf8;
  }
  .student-item .top{
    display:flex; justify-content:space-between; align-items:center; gap:8px;
  }
  .student-item .name{font-weight:700; font-size:14.5px;}
  .student-item .meta{font-size:11.5px; color:var(--muted); margin-top:2px;}
  .count-badge{
    font-family:'Bebas Neue',sans-serif;
    font-size:20px;
    background:var(--ink);
    color:var(--paper);
    border-radius:6px;
    padding:2px 10px;
    min-width:44px;
    text-align:center;
    letter-spacing:0.5px;
  }
  .count-badge.full{background:var(--green);}
  .dates-strip{
    margin-top:8px;
    display:flex;
    flex-wrap:wrap;
    gap:6px;
  }
  .date-chip{
    font-size:11px;
    background:#efece2;
    border:1px solid var(--line);
    border-radius:20px;
    padding:3px 8px 3px 10px;
    display:flex;
    align-items:center;
    gap:5px;
    color:var(--ink);
  }
  .date-chip button{
    background:none; border:none; color:var(--red-corner);
    font-size:13px; font-weight:900; padding:0; cursor:pointer; line-height:1;
  }
  .empty{
    text-align:center; color:var(--muted); font-size:13px; padding:20px 10px;
  }

  .summary-strip{
    display:grid;
    grid-template-columns:1fr 1fr 1fr;
    gap:8px;
    margin-bottom:4px;
  }
  .summary-box{
    background:var(--ink);
    color:var(--paper);
    border-radius:8px;
    padding:10px 12px;
  }
  .summary-box .num{font-family:'Bebas Neue',sans-serif; font-size:22px; letter-spacing:0.5px;}
  .summary-box .lbl{font-size:9.5px; text-transform:uppercase; letter-spacing:1px; color:#c9c6ba;}
  .summary-box.amber{background:var(--amber); color:var(--ink);}
  .summary-box.amber .lbl{color:#5c4212;}

  select#classStudent{margin-bottom:0;}
  .footer-note{
    font-size:11px; color:var(--muted); text-align:center; margin-top:22px; line-height:1.5;
  }
  .toast{
    position:fixed; bottom:18px; left:50%; transform:translateX(-50%);
    background:var(--ink); color:var(--paper); padding:9px 18px; border-radius:20px;
    font-size:12.5px; opacity:0; pointer-events:none; transition:opacity .25s ease, bottom .25s ease;
    z-index:50;
  }
  .toast.show{opacity:1; bottom:26px;}