:root{--teal:#1b596a;--teal-deep:#124755;--teal-soft:#e7f0f1;--orange:#f26a21;--cream:#f6e8d7;--tan:#f9e3b2;--ink:#23363b;--muted:#718186;--line:#dfe7e8;--paper:#fbfcfb;--white:#fff;--sidebar:232px;--teacher:166px;--slot:112px}*{box-sizing:border-box}body{margin:0;background:#f3f6f5;color:var(--ink);font-family:"DM Sans",sans-serif;font-size:15px}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);background:var(--teal-deep);color:white;padding:28px 18px 20px;display:flex;flex-direction:column;z-index:5}.brand{display:flex;gap:12px;align-items:center;padding:0 8px 30px}.brand .mark{width:39px;height:39px;border:1px solid rgba(255,255,255,.45);border-radius:12px;display:grid;place-items:center;font-family:Manrope;font-weight:800;font-size:19px}.brand .mark span{color:#f8a66f}.brand strong{font-family:Manrope;font-size:15px;display:block}.brand small,.profile small{display:block;color:#bbced2;margin-top:2px;font-size:12px}nav{display:grid;gap:7px}.nav-item{border:0;background:transparent;color:#c8d8db;border-radius:10px;padding:12px 13px;text-align:left;font:600 14px "DM Sans";display:flex;align-items:center;gap:12px;cursor:pointer}.nav-item span{font-size:19px;width:19px;text-align:center}.nav-item b{margin-left:auto;background:var(--orange);color:white;border-radius:20px;font-size:11px;padding:2px 7px}.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.12);color:white}.location-card{margin-top:auto;background:rgba(255,255,255,.08);padding:14px;border-radius:12px;display:grid;gap:5px}.location-card small{font-size:10px;letter-spacing:.12em;color:#a9c2c6}.location-card strong{font-size:13px}.location-card span{font-size:11px;color:#bed0d3}.profile{display:flex;gap:9px;align-items:center;padding:18px 5px 0}.profile .avatar{background:var(--cream);color:var(--teal);font-weight:800;width:34px;height:34px;border-radius:50%;display:grid;place-items:center}.profile strong{font-size:12px}.profile button{margin-left:auto;background:none;border:0;color:#bdd0d3}main{margin-left:var(--sidebar);min-height:100vh}.topbar{height:98px;padding:25px 32px 20px;background:white;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.eyebrow{font-weight:700;letter-spacing:.13em;color:#849397;font-size:10px;margin:0 0 5px}.topbar h1{font:800 25px Manrope;margin:0}.top-actions{display:flex;gap:9px}.icon-btn,.primary,.secondary{border-radius:9px;height:42px;border:1px solid var(--line);background:white;padding:0 15px;font:700 14px "DM Sans";cursor:pointer}.icon-btn{width:42px;padding:0;font-size:21px}.alert{position:relative}.alert:after{content:"";position:absolute;width:7px;height:7px;background:var(--orange);border:2px solid white;border-radius:50%;right:7px;top:7px}.primary{background:var(--orange);border-color:var(--orange);color:white;padding:0 18px;box-shadow:0 5px 12px rgba(242,106,33,.17)}.toolbar{background:white;padding:17px 32px;display:flex;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.date-nav,.control-set{display:flex;align-items:center;gap:8px}.date-nav>button,.segmented button{height:38px;background:white;border:1px solid var(--line);padding:0 13px;font-weight:600;color:var(--ink)}.date-nav>button:first-child{border-radius:8px 0 0 8px}.date-nav>button:nth-child(2){margin-left:-9px;margin-right:-9px}.date-nav>button:nth-child(3){border-radius:0 8px 8px 0}.date-nav>div{margin-left:12px;display:grid}.date-nav strong{font:700 16px Manrope}.date-nav span{font-size:12px;color:var(--muted);margin-top:2px}.control-set label{font-size:11px;color:var(--muted);display:grid;gap:3px}.control-set select{height:34px;border:1px solid var(--line);border-radius:7px;padding:0 28px 0 10px;background:white;color:var(--ink);font:600 12px "DM Sans"}.segmented{display:flex;margin-left:5px}.segmented button:first-child{border-radius:8px 0 0 8px}.segmented button:last-child{border-radius:0 8px 8px 0;margin-left:-1px}.segmented button.active{background:var(--teal);color:white;border-color:var(--teal)}.status-strip{height:49px;margin:16px 20px 0;background:#fff;border:1px solid var(--line);border-radius:11px 11px 0 0;display:flex;align-items:center;padding:0 18px;gap:27px;color:var(--muted);font-size:13px}.status-strip strong{color:var(--ink)}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:7px}.dot.teal{background:#4d988d}.dot.orange{background:var(--orange)}.dot.gold{background:#dba133}.status-strip button{margin-left:auto;border:0;background:none;color:var(--teal);font-weight:700;cursor:pointer}.calendar-shell{margin:0 20px 25px;background:white;border:1px solid var(--line);border-top:0;border-radius:0 0 11px 11px;display:grid;grid-template-columns:minmax(0,1fr) 252px;min-height:610px;overflow:hidden}.calendar-scroll{overflow:auto}.calendar-grid{display:grid;grid-template-columns:var(--teacher) repeat(15,var(--slot));min-width:1846px;position:relative}.cell{min-height:106px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);position:relative}.time-head{min-height:52px;background:#f8faf9;position:sticky;top:0;z-index:3;padding:17px 7px 0;text-align:center;font-size:12px;color:var(--muted);border-bottom:1px solid var(--line)}.teacher-head{left:0;z-index:4;text-align:left;padding-left:18px;font-weight:700;color:var(--ink)}.teacher-cell{position:sticky;left:0;z-index:2;background:#fff;padding:21px 15px;display:flex;gap:10px}.teacher-avatar{width:34px;height:34px;border-radius:10px;background:var(--teal-soft);color:var(--teal);display:grid;place-items:center;font-weight:800;font-size:12px}.teacher-cell strong{display:block;font-size:13px}.teacher-cell small{display:block;color:var(--muted);font-size:11px;margin-top:4px}.slot{background-image:linear-gradient(90deg,transparent 49%,rgba(223,231,232,.45) 50%,transparent 51%)}.slot.unavailable{background:#f1f3f3;background-image:repeating-linear-gradient(135deg,transparent 0,transparent 7px,rgba(150,163,166,.08) 7px,rgba(150,163,166,.08) 9px)}.slot.unavailable:after{content:"Unavailable";font-size:10px;color:#9aa6a8;position:absolute;top:44px;left:25px}.lesson{position:absolute;top:10px;height:85px;border-radius:8px;border-left:4px solid;padding:10px 9px;z-index:2;cursor:grab;box-shadow:0 2px 7px rgba(34,54,59,.08);overflow:hidden}.lesson:active{cursor:grabbing}.lesson strong{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lesson small{font-size:10px;display:block;margin-top:4px}.lesson .capacity{position:absolute;right:7px;bottom:7px;font-weight:800;font-size:10px}.lesson.reading{background:#e8f3f1;border-color:#4c998e;color:#235e57}.lesson.math{background:#fff0e7;border-color:#f28b50;color:#964619}.lesson.writing{background:#f7efd9;border-color:#d8a337;color:#795b1f}.lesson.testprep{background:#ecebf5;border-color:#7d79aa;color:#4f4b79}.lesson.dragging{opacity:.45}.day-panel{border-left:1px solid var(--line);padding:18px;background:#fcfdfc}.panel-head{display:flex;justify-content:space-between}.panel-head>div{width:48px;height:54px;border-radius:10px;background:var(--teal);color:white;display:grid;place-items:center;padding:6px}.panel-head small{font-size:9px;letter-spacing:.15em}.panel-head strong{font:800 22px Manrope}.panel-head button{border:0;background:none;color:var(--muted)}.day-panel h2{font:700 16px Manrope;margin:17px 0}.metric{display:grid;grid-template-columns:1fr auto;gap:8px;margin:14px 0}.metric span{font-size:12px;color:var(--muted)}.metric strong{font-size:12px}.metric>div{grid-column:1/-1;height:5px;background:#e9eeee;border-radius:6px;overflow:hidden}.metric i{display:block;height:100%;background:var(--teal);border-radius:6px}.day-panel hr{border:0;border-top:1px solid var(--line);margin:21px 0}.day-panel h3{font:700 12px Manrope;margin:0 0 11px}.day-panel h3 b{background:#fbe5d8;color:var(--orange);border-radius:12px;padding:2px 7px;margin-left:4px}.attention{width:100%;display:flex;align-items:center;gap:9px;border:0;background:white;border:1px solid var(--line);border-radius:9px;padding:10px;margin:7px 0;text-align:left}.attention-icon{width:27px;height:27px;border-radius:8px;background:var(--teal-soft);color:var(--teal);display:grid;place-items:center;font-weight:800}.attention-icon.warn{background:#fff0e7;color:var(--orange)}.attention div{display:grid;gap:2px}.attention strong{font-size:11px}.attention small{font-size:9px;color:var(--muted)}.attention em{font-style:normal;margin-left:auto;color:#92a0a3}.legend{margin-top:25px;display:grid;grid-template-columns:1fr 1fr;gap:8px}.legend h3{grid-column:1/-1}.legend span{font-size:10px;color:var(--muted)}.legend i{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:5px}.legend .reading{background:#4c998e}.legend .math{background:#f28b50}.legend .writing{background:#d8a337}.legend .testprep{background:#7d79aa}.modal-backdrop{position:fixed;inset:0;background:rgba(16,43,50,.42);display:none;place-items:center;z-index:20}.modal-backdrop.open{display:grid}.modal{width:min(520px,calc(100% - 30px));background:white;border-radius:15px;box-shadow:0 24px 80px rgba(16,43,50,.25);padding:24px}.modal-top{display:flex;justify-content:space-between}.modal h2{font:800 22px Manrope;margin:0 0 18px}.modal-top button{border:0;background:#f1f4f3;width:34px;height:34px;border-radius:50%;font-size:22px}.modal form,.modal label{display:grid;gap:7px}.modal form{gap:15px}.modal label{font-weight:600;font-size:12px}.modal input,.modal select{height:43px;border:1px solid var(--line);border-radius:8px;padding:0 11px;font:14px "DM Sans";background:white}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:13px}.modal label.check{display:flex;align-items:center;gap:8px}.check input{height:auto}.modal-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:7px}.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);background:var(--teal-deep);color:white;padding:12px 18px;border-radius:9px;opacity:0;pointer-events:none;transition:.25s;z-index:30;font-weight:600}.toast.show{opacity:1;transform:translate(-50%,0)}@media(max-width:980px){.sidebar{width:78px;padding:22px 12px}.brand>div:last-child,.nav-item:not(.active){font-size:0}.brand .mark{flex:none}.nav-item{justify-content:center}.nav-item.active{font-size:0}.nav-item span{font-size:20px}.nav-item b,.location-card,.profile>div:not(.avatar),.profile button{display:none}main{margin-left:78px}.toolbar{align-items:flex-start;flex-direction:column}.calendar-shell{grid-template-columns:1fr}.day-panel{display:none}.topbar,.toolbar{padding-left:20px;padding-right:20px}.control-set{flex-wrap:wrap}}@media(max-width:640px){.sidebar{position:fixed;top:auto;right:0;width:auto;height:64px;flex-direction:row;align-items:center;padding:8px;z-index:10}.brand,.location-card,.profile{display:none}.sidebar nav{display:flex;width:100%;justify-content:space-around}.nav-item,.nav-item.active{padding:10px;font-size:0}.nav-item span{font-size:21px}.nav-item b{display:block;position:absolute;margin:0 0 25px 22px}main{margin:0 0 64px}.topbar{height:82px}.topbar .eyebrow,.top-actions .icon-btn{display:none}.topbar h1{font-size:20px}.primary{padding:0 12px}.toolbar{padding:13px 14px}.control-set label{display:none}.status-strip{margin:10px 10px 0;gap:13px;overflow:auto}.status-strip div{white-space:nowrap}.calendar-shell{margin:0 10px}.form-row{grid-template-columns:1fr}}