:root{--navy:#0b2850;--blue:#168cf4;--light:#eef7ff;--gold:#f4b942;--line:#d9e7f4;--text:#17324d;--muted:#6d8094;--green:#1aa66a;--red:#e55252}
.toolx{max-width:1180px;margin:0 auto;padding:28px 18px 56px;color:var(--text)}
.toolx .crumb{font-size:14px;color:var(--muted);margin-bottom:14px}.toolx .crumb a{color:#3277b7;text-decoration:none}
.toolx-hero{background:linear-gradient(135deg,#f7fbff,#edf7ff);border:1px solid var(--line);border-radius:22px;padding:26px 28px;margin-bottom:18px;box-shadow:0 10px 30px #17324d0b}.toolx-hero h1{font:800 30px/1.25 Prompt,sans-serif;margin:0 0 8px;color:var(--navy)}.toolx-hero p{margin:0;color:var(--muted);font-size:16px}.toolx-grid{display:grid;grid-template-columns:360px 1fr;gap:18px}.toolx-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 8px 26px #17324d0a}.toolx-card h2{font:700 19px Prompt,sans-serif;margin:0 0 14px;color:var(--navy)}.toolx-card h3{font:700 16px Prompt,sans-serif;margin:16px 0 10px;color:var(--navy)}.toolx-field{display:grid;gap:6px;margin:10px 0}.toolx-field label{font-weight:700;font-size:14px}.toolx input,.toolx select,.toolx textarea{width:100%;box-sizing:border-box;border:1px solid #cfe0ef;border-radius:11px;padding:10px 12px;font:inherit;color:var(--text);background:#fff}.toolx textarea{min-height:145px;resize:vertical}.toolx-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.toolx-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}.toolx button{border:0;border-radius:11px;padding:10px 14px;font:700 14px Sarabun,sans-serif;cursor:pointer;background:#edf4fa;color:#254661}.toolx button.primary{background:var(--blue);color:#fff}.toolx button.gold{background:var(--gold);color:#4d3700}.toolx button.danger{background:#fff0f0;color:#b63838}.toolx button:disabled{opacity:.5;cursor:not-allowed}.toolx-note{background:#f6fbff;border:1px dashed #bcd8ef;border-radius:12px;padding:11px 12px;color:#557187;font-size:13px;margin-top:12px}.toolx-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}.statbox{border:1px solid var(--line);border-radius:14px;padding:13px;background:#fbfdff}.statbox small{display:block;color:var(--muted);margin-bottom:4px}.statbox strong{font:800 23px Prompt,sans-serif;color:var(--navy)}.toolx-tablewrap{overflow:auto;border:1px solid var(--line);border-radius:14px}.toolx table{width:100%;border-collapse:collapse;min-width:650px}.toolx th,.toolx td{padding:10px;border-bottom:1px solid #e8f0f6;text-align:left;vertical-align:middle}.toolx th{background:#f4f9fd;color:var(--navy);font-weight:700;position:sticky;top:0}.toolx td input,.toolx td select{padding:7px 8px;border-radius:8px}.emptybox{padding:38px 16px;text-align:center;color:#8194a7}.badgeok{display:inline-block;padding:4px 8px;border-radius:999px;background:#e9f9f1;color:#168057;font-weight:700;font-size:12px}.badgewarn{display:inline-block;padding:4px 8px;border-radius:999px;background:#fff5e2;color:#9a6813;font-weight:700;font-size:12px}.badgebad{display:inline-block;padding:4px 8px;border-radius:999px;background:#fff0f0;color:#b13d3d;font-weight:700;font-size:12px}
/* seating */.seat-toolbar{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:12px}.seat-room{background:#f7fbff;border:1px solid var(--line);border-radius:16px;padding:16px;overflow:auto}.board{max-width:520px;margin:0 auto 18px;background:#0f5c49;color:#fff;text-align:center;padding:8px;border-radius:8px;font-weight:700}.seat-grid{display:grid;gap:10px;min-width:520px}.seat{min-height:78px;background:#fff;border:2px solid #d9e8f4;border-radius:13px;display:flex;align-items:center;justify-content:center;text-align:center;padding:8px;font-weight:700;cursor:pointer;user-select:none}.seat.selected{border-color:var(--blue);background:#eaf6ff}.seat.empty{color:#a0afbc;font-weight:500}.seat-num{display:block;font-size:11px;color:#8295a8;font-weight:500;margin-top:3px}
/* schedule */.schedule-table th,.schedule-table td{text-align:center;min-width:120px}.schedule-table th:first-child,.schedule-table td:first-child{min-width:90px;position:sticky;left:0;background:#f8fbfe;z-index:2}.schedule-cell{min-height:58px;border:1px solid transparent;border-radius:8px;padding:7px;cursor:text;outline:none}.schedule-cell:focus{border-color:#83bff2;background:#f2f9ff}.periodtime{font-size:12px;color:var(--muted);display:block}
/* attendance */.bar{height:10px;background:#edf3f7;border-radius:99px;overflow:hidden}.bar>i{display:block;height:100%;background:#42a5f5;border-radius:99px}.att-status{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.att-status button{padding:7px 6px;font-size:12px}.att-status button.active{background:#168cf4;color:#fff}
/* converter */.conv-result{margin-top:15px;background:linear-gradient(135deg,#0e6fc7,#1595f5);color:#fff;border-radius:18px;padding:22px;text-align:center}.conv-result small{opacity:.85}.conv-result strong{display:block;font:800 34px Prompt,sans-serif;margin:5px 0}.unit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.unit-chip{border:1px solid var(--line);border-radius:12px;padding:10px;background:#fbfdff}.unit-chip b{display:block;color:var(--navy);margin-bottom:3px}
@media(max-width:900px){.toolx-grid{grid-template-columns:1fr}.toolx-stats{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.toolx-row{grid-template-columns:1fr}.toolx-stats{grid-template-columns:1fr 1fr}.toolx-hero h1{font-size:25px}.toolx{padding-left:12px;padding-right:12px}}
@media print{.no-print,.toolx .crumb,.toolx-actions,.toolx-grid>.toolx-card:first-child{display:none!important}.toolx{max-width:none;padding:0}.toolx-grid{display:block}.toolx-card,.toolx-hero{box-shadow:none;border-color:#bbb}.site-footer{display:none!important}}