:root{font-family:Inter,Arial,sans-serif;color:#172033;background:#f4f6fb}*{box-sizing:border-box}body{margin:0;background:#f4f6fb}header{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;padding:14px 22px;background:#172033;color:#fff;box-shadow:0 2px 12px #0002}header span{color:#dbe4ff;margin-left:8px}main{max-width:1280px;margin:0 auto;padding:22px}.login{display:grid;place-items:center;min-height:90vh}.login-card{width:min(460px,92vw)}h1,h2,h3{margin-top:0}.card{background:white;border-radius:18px;padding:20px;margin:0 0 18px;box-shadow:0 8px 24px #17203312}.grid{display:grid;grid-template-columns:270px 1fr;gap:20px}.menu{position:sticky;top:78px;align-self:start;background:#fff;border-radius:18px;padding:18px;box-shadow:0 8px 24px #17203312}.menu a,.menu button{display:block;width:100%;box-sizing:border-box;margin:7px 0;padding:10px 12px;border-radius:12px;border:0;background:#eef2ff;color:#172033;text-align:left;text-decoration:none;cursor:pointer}.menu a:hover{background:#dfe7ff}.menu button,button,.button-link{background:#3056d3;color:#fff;border:0;border-radius:12px;padding:10px 14px;cursor:pointer;text-decoration:none;display:inline-block;font:inherit}button:hover,.button-link:hover{filter:brightness(.96)}.danger{background:#dc2626!important;color:#fff!important}.warn{background:#f97316!important;color:#fff!important}.small{font-size:13px;padding:7px 10px}.success{background:#dcfce7;color:#166534;padding:10px;border-radius:12px}.warning{background:#fff7ed;color:#9a3412;padding:12px;border-radius:12px;margin-bottom:14px}.error{background:#fee2e2;color:#991b1b;padding:10px;border-radius:12px}input,select,textarea{width:100%;box-sizing:border-box;border:1px solid #d7ddeb;border-radius:12px;padding:10px;background:#fff;color:#172033}textarea{min-height:95px}.formgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.formgrid.compact{grid-template-columns:repeat(2,minmax(0,320px));align-items:end}.stack{display:grid;gap:12px}.inline{display:flex;gap:12px;align-items:center}.inline-form{display:inline-block;margin-left:8px}.wrap{flex-wrap:wrap}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat{background:#fff;border-radius:18px;padding:18px;box-shadow:0 8px 24px #17203312}.stat b{font-size:30px}table{width:100%;border-collapse:collapse}th,td{padding:10px;border-bottom:1px solid #edf0f7;text-align:left;vertical-align:top}th{background:#f8f9fe}.muted{color:#6b7280}.studentbox{border:1px solid #e6eaf4;border-radius:16px;padding:16px;margin:12px 0;background:#fbfcff}#calendarBox{min-height:650px}.fc{background:white}.fc .fc-button{background:#3056d3;border:0}.fc-event{cursor:pointer}.section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.actions-row{margin-top:18px}.legend{display:flex;gap:14px;flex-wrap:wrap;margin:10px 0 14px;color:#4b5563}.dot{width:12px;height:12px;border-radius:999px;display:inline-block;margin-right:-8px;align-self:center}.scheduled{background:#3056d3}.paid{background:#16a34a}.unpaid{background:#f97316}.recovery{background:#7c3aed}.cancelled{background:#ef4444}.modal{position:fixed;inset:0;background:#0006;z-index:20;display:grid;place-items:center;padding:18px}.modal.hidden{display:none}.modal-card{width:min(620px,95vw);background:#fff;border-radius:20px;padding:22px;box-shadow:0 20px 60px #0005;position:relative}.close{position:absolute;right:14px;top:12px;border-radius:999px;width:36px;height:36px;padding:0;background:#eef2ff;color:#172033}.content{min-width:0}@media(max-width:900px){.grid{grid-template-columns:1fr}.menu{position:static}.formgrid,.formgrid.compact,.cards{grid-template-columns:1fr}.inline{display:grid}.section-head{display:block}}
.info-box{background:#eef2ff;color:#1e3a8a;padding:12px;border-radius:12px;margin:12px 0}.actions-card{background:#fbfcff;border:1px solid #e6eaf4;border-radius:16px;padding:16px;margin-top:18px}.hidden{display:none!important}