:root{
  --bg: #0a0f17;
  --card:#0f1625;
  --muted:#8ea1b3;
  --text:#e9eef5;
  --brand:#7c5cff;
  --brand2:#14b8a6;

  --c-term1:#60a5fa;
  --c-term2:#34d399;
  --c-break:#fbbf24;
  --c-semester:#f472b6;
  --c-summer:#a78bfa;
  --c-holiday:#f87171;
  --c-today:#ffffff;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background: radial-gradient(1000px 500px at 80% -10%, rgba(20,184,166,.12), transparent 60%) ,
              radial-gradient(800px 400px at 10% -10%, rgba(139,92,246,.12), transparent 60%),
              var(--bg);
  color:var(--text);
  font: 15px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;
}
.container{max-width:1100px;margin:0 auto;padding:24px}
.hero{
  position:relative;height:220px;overflow:hidden;
  background: linear-gradient(135deg, rgba(139,92,246,.25), rgba(20,184,166,.18));
  border-bottom:1px solid rgba(255,255,255,.05);
}
.hero__overlay{position:absolute;inset:0;
  background: radial-gradient(800px 300px at 20% 10%, rgba(255,255,255,.05), transparent 60%),
              radial-gradient(600px 300px at 80% 20%, rgba(255,255,255,.04), transparent 60%);
  mask-image: radial-gradient(circle at 50% 0%, black 60%, transparent 100%);
}
.hero__bg{position:absolute;bottom:-1px;left:0;width:100%;fill:rgba(255,255,255,.05)}
.hero__content{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%}
.brand{display:flex;gap:10px;align-items:center}
.logo{font-size:28px}
h1{margin:0;font-size:26px;letter-spacing:.2px}
.tag{margin:6px 0 0;color:var(--muted);font-size:13px}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.08);
  border-radius:18px;
  box-shadow: 0 10px 25px rgba(0,0,0,.25);
  padding:16px;
  margin-top:-50px;
  backdrop-filter: blur(8px);
}
.controls .row{display:grid;grid-template-columns:1fr auto auto auto;gap:12px;align-items:end}
.controls .row label{font-size:12px;color:var(--muted)}
.select{width:100%;padding:10px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.03);color:var(--text)}
.btn{
  padding:10px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.2);
  background:linear-gradient(135deg, var(--brand), var(--brand2)); color:white; font-weight:600; cursor:pointer;
}
.btn--ghost{background:transparent;color:var(--text)}
.row--meta{margin-top:8px;display:flex;gap:16px;flex-wrap:wrap;color:var(--muted)}

.legend{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}
.legend__item{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.06);padding:8px 10px;border-radius:10px}
.swatch{width:14px;height:14px;border-radius:4px;display:inline-block}
.s-term1{background:var(--c-term1)}
.s-term2{background:var(--c-term2)}
.s-break{background:var(--c-break)}
.s-semester{background:var(--c-semester)}
.s-summer{background:var(--c-summer)}
.s-holiday{background:var(--c-holiday)}
.s-today{background:var(--c-today)}

.calendar{margin-top:16px}
.months{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.month{background:rgba(255,255,255,.02);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:10px}
.month__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.month__name{font-weight:700}
.week{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.dow{font-size:11px;color:var(--muted);text-align:center}
.day{height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--text);position:relative}
.day.empty{opacity:.15}
.day.weekend{opacity:.65}
.day.today{outline:2px solid rgba(255,255,255,.9); outline-offset:1px; color:#000; background:rgba(255,255,255,.9)}
.day .dot{position:absolute;bottom:3px;left:50%;transform:translateX(-50%);width:6px;height:6px;border-radius:50%}
.day.term1{background:color-mix(in oklab, var(--c-term1) 24%, transparent)}
.day.term2{background:color-mix(in oklab, var(--c-term2) 24%, transparent)}
.day.break{background:color-mix(in oklab, var(--c-break) 24%, transparent);}
.day.semester{background:color-mix(in oklab, var(--c-semester) 24%, transparent);}
.day.summer{background:color-mix(in oklab, var(--c-summer) 24%, transparent);}
.day.holiday{box-shadow: inset 0 0 0 2px var(--c-holiday)}
.month__footer{margin-top:6px;color:var(--muted);font-size:11px;display:flex;gap:12px;flex-wrap:wrap}

.editor textarea{width:100%;min-height:280px;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.03);color:var(--text);padding:12px;font-family:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace}
.editor__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.editor__actions{margin-top:8px;display:flex;gap:10px}

.footer{display:flex;justify-content:flex-end;align-items:center;margin:18px 0 60px}
.muted{color:var(--muted)}

@media (max-width:1000px){
  .months{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:720px){
  .controls .row{grid-template-columns:1fr auto auto}
  .months{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:520px){
  .months{grid-template-columns:1fr}
}
@media print{
  body{background:white;color:black}
  .hero, .editor, .controls .row button, .footer{display:none}
  .card{box-shadow:none;border:none;margin-top:0}
  .month{break-inside:avoid}
}

.controls__bar{display:flex;align-items:center;gap:12px}
.controls__bar .spacer{flex:1}
.year-badge{padding:8px 12px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);font-weight:600}
.btn--sm{padding:8px 12px;font-size:13px;border-radius:10px}
.btn--primary{background:linear-gradient(135deg, var(--brand), var(--brand2));color:white;border:1px solid rgba(255,255,255,.2)}
/* Weekend emphasis */
.day.weekend{background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03)); border:1px dashed rgba(255,255,255,.12)}
/* Keep colors on print */
@media print{
  -webkit-print-color-adjust: exact;
  print-color-adjust: exact;
  color-adjust: exact;
  body{background:white}
  .hero{display:none}
  .card{box-shadow:none;border:1px solid #ddd}
  .month{break-inside:avoid}
}