:root{--navy:#10213f;--cyan:#25c4d8;--coral:#ff7a6b;--paper:#f7f8fb;--ink:#1c2940;--muted:#667085;--ok:#16865c;--bad:#c13b4a;--line:#dfe4ec}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;background:linear-gradient(145deg,#eefbfc 0,#fff 38%,#fff5f2 100%);color:var(--ink);min-height:100vh}a{color:inherit}.shell{max-width:1180px;margin:auto;padding:24px}.brand{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--navy);letter-spacing:-.03em}.brand-mark{width:42px;height:42px;border-radius:14px;background:var(--navy);color:white;display:grid;place-items:center;box-shadow:8px 8px 0 var(--cyan)}.hero{display:grid;grid-template-columns:1fr 1.15fr;gap:44px;align-items:start;padding:54px 0}.hero h1{font-size:clamp(2.4rem,5vw,5rem);line-height:.98;margin:24px 0;color:var(--navy);letter-spacing:-.055em}.hero h1 span{color:var(--coral)}.hero p{font-size:1.12rem;line-height:1.7;color:var(--muted);max-width:560px}.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}.chip{background:white;border:1px solid var(--line);border-radius:999px;padding:9px 13px;font-weight:700;font-size:.9rem}.card{background:rgba(255,255,255,.95);border:1px solid white;border-radius:26px;padding:28px;box-shadow:0 24px 70px rgba(16,33,63,.13)}.card h2{margin:0 0 6px;color:var(--navy)}.sub{color:var(--muted);margin:0 0 22px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}label{font-size:.85rem;font-weight:800;color:var(--navy)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:13px;padding:12px 13px;background:white;color:var(--ink);font:inherit;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(37,196,216,.16)}textarea{min-height:78px;resize:vertical}.actions{display:flex;gap:12px;align-items:center;margin-top:20px}.btn{border:0;border-radius:14px;padding:13px 18px;font-weight:900;cursor:pointer;background:var(--navy);color:white}.btn:hover{transform:translateY(-1px)}.btn.alt{background:#edf2f7;color:var(--navy)}.notice{padding:13px 15px;border-radius:13px;margin:14px 0;background:#edf9f7;color:var(--ok);font-weight:700}.notice.bad{background:#fff0f1;color:var(--bad)}.slots{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:8px}.slot{border:1px solid var(--line);background:white;border-radius:11px;padding:9px;font-size:.82rem;cursor:pointer}.slot.active{border-color:var(--coral);background:#fff4f1;color:var(--navy);font-weight:800}.fine{font-size:.78rem;color:var(--muted);line-height:1.5}.topline{display:flex;justify-content:space-between;align-items:center}.admin-link{font-size:.85rem;color:var(--muted);text-decoration:none}.admin-layout{display:grid;grid-template-columns:230px 1fr;min-height:100vh;background:var(--paper)}.side{background:var(--navy);color:white;padding:24px;position:sticky;top:0;height:100vh}.side nav{display:grid;gap:8px;margin-top:35px}.navbtn{border:0;background:transparent;color:#cdd6e6;text-align:left;padding:11px;border-radius:10px;cursor:pointer;font-weight:700}.navbtn.active,.navbtn:hover{background:#243756;color:white}.main{padding:28px;overflow:auto}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.toolbar input,.toolbar select{width:auto;min-width:150px}.kpis{display:grid;grid-template-columns:repeat(5,1fr);gap:13px}.kpi{background:white;border-radius:16px;padding:17px;border:1px solid var(--line)}.kpi strong{display:block;font-size:1.8rem;color:var(--navy)}.tablewrap{background:white;border:1px solid var(--line);border-radius:17px;overflow:auto}table{width:100%;border-collapse:collapse;min-width:900px}th,td{padding:12px 14px;border-bottom:1px solid #edf0f4;text-align:left;font-size:.86rem}th{background:#f8fafc;color:var(--muted);position:sticky;top:0}.badge{padding:5px 8px;border-radius:999px;background:#eef2f7;font-size:.75rem;font-weight:800;white-space:nowrap}.badge.confirmed,.badge.synced{background:#e4f7ef;color:var(--ok)}.badge.failed,.badge.dead_letter,.badge.cancelled{background:#ffe9eb;color:var(--bad)}.panel{display:none}.panel.active{display:block}.login{max-width:420px;margin:10vh auto}.calendar{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}.day{min-height:110px;background:white;border:1px solid var(--line);border-radius:13px;padding:8px}.day b{font-size:.8rem}.event{margin-top:6px;background:#e9f8fa;border-left:3px solid var(--cyan);padding:6px;border-radius:6px;font-size:.72rem}.row-actions{display:flex;gap:6px}.mini{border:1px solid var(--line);background:white;border-radius:8px;padding:6px 8px;cursor:pointer}.heatmap{display:grid;grid-template-columns:64px repeat(7,minmax(70px,1fr));gap:4px;overflow:auto;margin-bottom:22px}.heatcell{min-width:65px;padding:7px;border-radius:8px;background:#eef2f7;text-align:center;font-size:.75rem}.heatcell.head{background:var(--navy);color:white;font-weight:800}.heatcell.level1{background:#dff5f2}.heatcell.level2{background:#9fe5dc}.heatcell.level3{background:#36c7b1;color:#082e2a;font-weight:800}.hidden{display:none!important}@media(max-width:850px){.hero{grid-template-columns:1fr;padding-top:28px}.hero-copy{display:none}.grid{grid-template-columns:1fr}.field.full{grid-column:auto}.slots{grid-template-columns:repeat(2,1fr)}.admin-layout{grid-template-columns:1fr}.side{height:auto;position:static}.side nav{display:flex;overflow:auto;margin-top:18px}.main{padding:16px}.kpis{grid-template-columns:repeat(2,1fr)}.calendar{grid-template-columns:1fr}.day{min-height:auto}}


/* Teacher scheduling module */
.portal-body{background:#f3f7fb}.portal-shell{max-width:1280px;margin:0 auto;padding:24px}.portal-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:18px}.sticky{position:sticky;top:0;z-index:5;background:#f3f7fb;padding:10px 0}.schedule-grid{display:grid;grid-template-columns:72px repeat(7,minmax(76px,1fr));gap:4px;min-width:680px;user-select:none;touch-action:none}.grid-corner,.time-head,.day-head,.slot-cell{min-height:42px;border-radius:8px;display:flex;align-items:center;justify-content:center}.grid-corner,.time-head{font-size:12px;color:#667085;font-weight:700}.day-head{border:0;background:#e9eff7;color:#0a2540;font-weight:800;flex-direction:column;cursor:pointer}.day-head small{font-size:9px;font-weight:500}.slot-cell{border:1px solid #d7e0ea;background:#fff;color:#0a2540;font-weight:800;cursor:pointer}.slot-cell:hover{border-color:#12a7c4}.slot-cell.selected{background:#12a7c4;color:white;border-color:#0789a3}.slot-cell.blocked{background:repeating-linear-gradient(135deg,#e4e7ec,#e4e7ec 6px,#cfd4dc 6px,#cfd4dc 12px);color:#667085;border-color:#b8c0cc;cursor:not-allowed}.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:14px;font-size:13px}.dot{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;border:1px solid #ccd5df}.dot.selected{background:#12a7c4}.dot.blocked{background:#cfd4dc}.dot.off{background:#fff}.history-row{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid #edf0f4}.notice.good{background:#eaf8f0;border-color:#a8dfbe;color:#176b3a}.heatcell.gap{background:#ffe7e7;color:#a93030}.btn.good{background:#14804a;color:#fff}.portal-shell .card{overflow-x:auto}pre{white-space:pre-wrap;word-break:break-word;background:#0a2540;color:#d9f7ff;padding:14px;border-radius:10px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}textarea{width:100%;min-height:160px;padding:12px;border:1px solid #ccd5df;border-radius:10px;font:inherit}
@media(max-width:800px){.portal-shell{padding:12px}.portal-head{flex-direction:column}.admin-layout{display:block}.side{position:static;width:auto;min-height:auto}.side nav{display:flex;overflow:auto}.main{padding:14px}.schedule-grid{grid-template-columns:58px repeat(7,68px)}.slot-cell,.day-head,.time-head{min-height:38px}.toolbar.sticky{overflow-x:auto;flex-wrap:nowrap}.kpis{grid-template-columns:repeat(2,minmax(0,1fr))}}

.availability-grid{display:grid;grid-template-columns:72px repeat(7,minmax(64px,1fr));gap:5px;overflow:auto;margin:16px 0;touch-action:none}.availability-grid>b{display:grid;place-items:center;font-size:.78rem;min-height:34px}.avail-cell{min-height:38px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}.avail-cell.on{background:var(--cyan);color:#072f35;font-weight:900}.avail-cell.busy{background:#d9dee7;color:#64748b;cursor:not-allowed;font-size:.65rem}.heat{display:grid;place-items:center;min-height:34px;border-radius:7px;background:#bff0e8;font-weight:800}.heat.gap{background:#ffe1dd;color:#9b2c2c}.toolbar{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin:14px 0}.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;padding:10px;border-bottom:1px solid var(--line)}@media(max-width:700px){.availability-grid{grid-template-columns:54px repeat(7,54px);font-size:.72rem}.avail-cell{min-height:42px}.toolbar .btn{padding:10px 12px}.card{padding:18px}}

/* Public two-step booking calendar */
.booking-card{min-height:590px}.stepper{display:flex;align-items:center;justify-content:center;margin-bottom:24px}.step-dot{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#e7ebf1;color:var(--muted);font-weight:900}.step-dot.active{background:var(--navy);color:#fff}.step-line{height:3px;width:70px;background:#dfe4ec}.step-actions{justify-content:space-between}.calendar-days{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;margin:18px 0}.calendar-day,.calendar-slot{border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--navy);padding:12px 8px;font-weight:800;cursor:pointer}.calendar-day.active,.calendar-slot.active{border-color:var(--coral);background:#fff1ee;box-shadow:0 0 0 2px rgba(255,122,107,.16)}.calendar-day:disabled,.calendar-slot:disabled{background:#eef1f5;color:#a2a9b4;border-color:#e1e5eb;cursor:not-allowed}.slots-title{font-size:1rem;color:var(--navy);margin:20px 0 10px}.calendar-slots{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;max-height:265px;overflow:auto;padding-right:3px}
@media(max-width:850px){.calendar-days{grid-template-columns:repeat(3,minmax(0,1fr))}.calendar-slots{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:700px){.calendar-days{grid-template-columns:repeat(2,minmax(0,1fr))}.calendar-slots{grid-template-columns:repeat(3,minmax(0,1fr))}.step-actions{align-items:stretch}.step-actions .btn{min-width:110px}}