@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@500;600;700;800&display=swap");:root{--ink:#17201d;--muted:#71807a;--canvas:#f4f7f4;--surface:#ffffff;--surface-2:#f8faf8;--line:#e2e8e4;--brand:#1c6b4a;--brand-2:#dff3e8;--accent:#f2b84b;--danger:#c94c58;--shadow:0 14px 40px rgba(25,53,41,0.08)}[data-theme=dark]{--ink:#edf5f0;--muted:#9aa9a2;--canvas:#101512;--surface:#18201c;--surface-2:#202923;--line:#2b3831;--brand:#5fd09a;--brand-2:#173c2b;--accent:#edbd5f;--danger:#ef7d86;--shadow:0 14px 40px rgba(0,0,0,0.24)}*{box-sizing:border-box}body,html{background:var(--canvas)}body{margin:0;color:var(--ink);font-family:DM Sans,sans-serif}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.login-page{min-height:100vh;display:grid;grid-template-columns:minmax(360px,.9fr) minmax(520px,1.1fr);background:#f8faf8}.login-panel{display:flex;flex-direction:column;justify-content:space-between;padding:44px clamp(32px,6vw,92px);background:var(--surface)}.brand{display:flex;align-items:center;gap:12px;font-family:Manrope,sans-serif;font-weight:800}.brand-logo{width:168px;max-width:100%;height:auto;display:block}.brand-mark{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:transparent;overflow:hidden;flex:0 0 auto}.brand-mark img{width:100%;height:100%;display:block}.login-card{width:min(430px,100%);margin:30px auto}.eyebrow{color:var(--brand);text-transform:uppercase;letter-spacing:.14em;font-weight:700;font-size:12px}h1,h2,h3{font-family:Manrope,sans-serif;margin:0;letter-spacing:-.035em}.login-card h1{font-size:clamp(36px,4vw,54px);line-height:1.04;margin:12px 0 16px}.muted{color:var(--muted)}.field{display:grid;grid-gap:8px;gap:8px;margin-top:20px}.field label{font-size:13px;font-weight:700}.input{width:100%;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);padding:14px 16px;border-radius:12px;outline:none}.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 15%,transparent)}.button{border:0;border-radius:12px;padding:12px 16px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px}.button.primary{background:var(--brand);color:white}.button.secondary{background:var(--surface-2);color:var(--ink);border:1px solid var(--line)}.button.ghost{background:transparent;color:var(--muted)}.button.danger{background:color-mix(in srgb,var(--danger) 12%,transparent);color:var(--danger)}.button.wide{width:100%;margin-top:24px;padding:15px}.auth-note{background:var(--brand-2);color:var(--brand);border-radius:12px;padding:12px 14px;margin-top:18px;font-size:13px}.login-art{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:60px;background:#143f2c;color:#fff}.login-art:after,.login-art:before{content:"";position:absolute;border:1px solid rgba(255,255,255,.13);border-radius:50%}.login-art:before{width:620px;height:620px;right:-140px;top:-210px}.login-art:after{width:430px;height:430px;left:-180px;bottom:-100px}.art-card{width:min(640px,100%);z-index:1;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:28px;padding:34px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.art-card h2{font-size:clamp(34px,4vw,56px);line-height:1.05;margin:16px 0 30px;max-width:560px}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:10px;gap:10px}.mini-cell{min-height:82px;background:rgba(255,255,255,.1);border-radius:13px;padding:12px;font-size:12px}.mini-cell strong{display:block;font-size:14px;margin-top:8px}.app-shell{min-height:100vh;display:grid;grid-template-columns:248px minmax(0,1fr)}.sidebar{position:-webkit-sticky;position:sticky;top:0;height:100vh;background:var(--surface);border-right:1px solid var(--line);padding:22px 18px 14px;display:flex;flex-direction:column;z-index:10;overflow:hidden}.sidebar .brand{padding:0 10px 28px}.school-switcher{padding:13px;border:1px solid var(--line);border-radius:13px;margin-bottom:24px;background:var(--surface-2)}.school-switcher small{display:block;color:var(--muted);margin-top:3px}.sidebar-nav{min-height:0;flex:1 1;overflow-y:auto;overflow-x:hidden;padding-right:3px;scrollbar-width:thin;scrollbar-color:var(--line) transparent}.nav-label{padding:0 12px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.14em;margin:10px 0 7px}.nav-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:10px;margin:2px 0;color:var(--muted);font-size:14px;font-weight:600}.nav-item:hover{background:var(--surface-2);color:var(--ink)}.nav-item.active{background:var(--brand-2);color:var(--brand)}.sidebar-footer{flex:0 0 auto;margin-top:10px;border-top:1px solid var(--line);padding-top:10px;background:var(--surface)}.user-row{display:flex;align-items:center;gap:10px;padding:8px}.avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--brand-2);color:var(--brand);font-weight:800;font-size:12px}.user-row small{display:block;color:var(--muted)}.main{min-width:0}.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 34px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--canvas) 92%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:-webkit-sticky;position:sticky;top:0;z-index:8}.search{width:min(420px,42vw);position:relative}.search input{padding-left:40px}.search svg{position:absolute;left:13px;top:12px;color:var(--muted)}.search-results{position:absolute;left:0;right:0;top:calc(100% + 8px);z-index:35;display:grid;grid-gap:5px;gap:5px;max-height:360px;overflow:auto;padding:8px;border:1px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:var(--shadow)}.search-results button{border:0;background:transparent;color:var(--ink);text-align:left;border-radius:12px;padding:11px 12px;display:grid;grid-gap:3px;gap:3px;cursor:pointer}.search-results button:focus-visible,.search-results button:hover{background:var(--brand-2);outline:none}.search-empty,.search-results small{color:var(--muted);font-size:12px}.search-empty{padding:12px}.top-actions{display:flex;align-items:center;gap:9px}.icon-button{width:40px;height:40px;border:1px solid var(--line);border-radius:11px;background:var(--surface);color:var(--ink);display:grid;place-items:center}.language-select{border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);padding:9px 28px 9px 10px;font-weight:800}.language-select.compact{height:40px;padding-top:0;padding-bottom:0}.auth-divider{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12px;margin:18px 0}.auth-divider:after,.auth-divider:before{content:"";height:1px;background:var(--line);flex:1 1}.credential-card{display:grid;grid-template-columns:150px 1fr;grid-gap:10px;gap:10px;padding:18px;border-radius:14px;background:var(--brand-2);color:var(--brand)}.credential-card span{color:var(--muted)}.credential-card strong{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;-webkit-user-select:all;-moz-user-select:all;user-select:all}.content{padding:32px 34px 48px;max-width:1600px;margin:auto}.page-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:28px}.page-heading h1{font-size:31px;margin-bottom:6px}.heading-actions{display:flex;gap:10px;flex-wrap:wrap}.export-menu{position:relative}.export-menu summary{list-style:none}.export-menu summary::-webkit-details-marker{display:none}.export-options{position:absolute;right:0;top:calc(100% + 8px);z-index:25;min-width:210px;display:grid;grid-gap:4px;gap:4px;padding:8px;border:1px solid var(--line);border-radius:13px;background:var(--surface);box-shadow:var(--shadow)}.export-options button{border:0;background:transparent;color:var(--ink);text-align:left;padding:10px 11px;border-radius:9px;font-weight:700;font-size:13px}.export-options button:hover{background:var(--surface-2);color:var(--brand)}.stats{display:grid;grid-template-columns:repeat(5,1fr);grid-gap:14px;gap:14px}.panel,.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.stat-card{padding:18px}.stat-top{display:flex;justify-content:space-between;color:var(--muted)}.stat-icon{width:34px;height:34px;border-radius:10px;background:var(--brand-2);color:var(--brand);display:grid;place-items:center}.stat-value{font:800 30px Manrope,sans-serif;margin-top:20px}.stat-foot{font-size:12px;color:var(--muted);margin-top:4px}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,.65fr);grid-gap:18px;gap:18px;margin-top:18px}.panel{padding:21px}.panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.panel-header h2{font-size:18px}.progress-list{display:grid;grid-gap:16px;gap:16px}.progress-row{display:grid;grid-template-columns:130px 1fr 46px;grid-gap:12px;gap:12px;align-items:center;font-size:13px}.progress-track{height:8px;border-radius:8px;overflow:hidden;background:var(--surface-2)}.progress-fill{height:100%;background:var(--brand);border-radius:inherit}.activity{display:grid;grid-gap:4px;gap:4px}.activity-item{display:grid;grid-template-columns:34px 1fr;grid-gap:10px;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);font-size:13px}.activity-item:last-child{border-bottom:0}.activity-icon{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:var(--surface-2);color:var(--brand)}.activity-item small{color:var(--muted);display:block;margin-top:4px}.notice{display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:13px;background:#fff5dc;color:#785714;margin-top:18px;font-size:13px}.notice.success{background:var(--brand-2);color:var(--brand)}.notice.error{background:color-mix(in srgb,var(--danger) 10%,var(--surface));color:var(--danger)}[data-theme=dark] .notice{background:#3a301a;color:#f2ce7b}[data-theme=dark] .notice.success{background:var(--brand-2);color:var(--brand)}[data-theme=dark] .notice.error{background:color-mix(in srgb,var(--danger) 12%,var(--surface));color:var(--danger)}.center-alert-backdrop{position:fixed;inset:0;z-index:70;display:grid;place-items:center;padding:24px;pointer-events:auto;background:rgba(9,18,13,.16)}.center-alert{width:min(560px,100%);margin:0;box-shadow:0 24px 80px rgba(9,18,13,.24);border:1px solid;align-items:center;justify-content:space-between}.center-alert .button{flex:0 0 auto}.toolbar{display:flex;justify-content:space-between;gap:14px;margin-bottom:14px;flex-wrap:wrap}.segmented{display:flex;padding:4px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.segment{border:0;background:transparent;color:var(--muted);padding:8px 13px;border-radius:8px;font-weight:700;font-size:12px}.segment.active{background:var(--brand);color:white}.filter-row{display:flex;gap:9px}.select{border:1px solid var(--line);border-radius:11px;color:var(--ink);padding:9px 34px 9px 12px}.select,.timetable-wrap{background:var(--surface)}.timetable-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.timetable{min-width:1050px;display:grid;grid-template-columns:112px repeat(5,minmax(170px,1fr))}.tt-head{position:-webkit-sticky;position:sticky;top:0;z-index:2;background:var(--surface-2);padding:16px;font-weight:800;font-size:13px}.tt-head,.tt-time{border-bottom:1px solid var(--line)}.tt-time{padding:17px 14px;border-right:1px solid var(--line);color:var(--muted);font-size:12px}.tt-time strong{display:block;color:var(--ink);margin-bottom:3px}.tt-cell{min-height:104px;padding:8px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface)}.lesson{width:100%;height:100%;min-height:86px;padding:11px;border:0;border-left:4px solid var(--subject);border-radius:10px;background:color-mix(in srgb,var(--subject) 11%,var(--surface));color:var(--ink);text-align:left;transition:transform .18s,box-shadow .18s}.lesson:hover{transform:translateY(-2px);box-shadow:0 8px 20px color-mix(in srgb,var(--subject) 16%,transparent)}.lesson strong{display:block;margin-bottom:8px}.lesson span{display:block;color:var(--muted);font-size:11px;margin-top:3px}.lesson[draggable=true]{cursor:-webkit-grab;cursor:grab}.lesson[draggable=true]:active{cursor:-webkit-grabbing;cursor:grabbing}.parked-lesson{min-height:92px}.empty-slot{width:100%;height:100%;min-height:86px;border:1px dashed transparent;border-radius:10px;background:transparent;color:transparent}.empty-slot:hover{border-color:var(--line);color:var(--muted);background:var(--surface-2)}.tt-cell:has(.empty-slot):hover{background:var(--surface-2)}.parking-tray{margin-top:16px;display:grid;grid-template-columns:260px minmax(0,1fr);grid-gap:16px;gap:16px;align-items:stretch;border:1px dashed color-mix(in srgb,var(--brand) 35%,var(--line));border-radius:16px;background:color-mix(in srgb,var(--brand-2) 55%,var(--surface));padding:16px;box-shadow:var(--shadow)}.parking-tray h3{font-size:16px;margin-bottom:5px}.parking-tray p{margin:0;font-size:13px;line-height:1.45}.parking-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));grid-gap:10px;gap:10px;min-height:96px}.parking-item{min-width:0}.parking-empty{min-height:96px;border:1px dashed var(--line);border-radius:12px;display:grid;place-items:center;color:var(--muted);background:color-mix(in srgb,var(--surface) 68%,transparent);font-weight:700}.conflict-banner{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:14px;padding:12px 15px;border-radius:12px;background:color-mix(in srgb,var(--danger) 10%,var(--surface));color:var(--danger);font-size:13px;font-weight:600}.conflict-modal{width:min(660px,100%);max-height:min(760px,88vh);overflow:auto}.conflict-list{display:grid;grid-gap:12px;gap:12px}.conflict-card{border:1px solid color-mix(in srgb,var(--danger) 25%,var(--line));border-radius:14px;padding:15px;background:color-mix(in srgb,var(--danger) 4%,var(--surface))}.conflict-card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:12px}.conflict-type{padding:5px 8px;border-radius:999px;background:color-mix(in srgb,var(--danger) 12%,var(--surface));color:var(--danger);font-size:10px;text-transform:uppercase;letter-spacing:.08em;font-weight:800}.conflict-card p{color:var(--muted);font-size:13px;margin:12px 0}.conflict-lessons{display:grid;grid-gap:7px;gap:7px}.conflict-lesson{width:100%;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);padding:11px 12px;display:flex;align-items:center;justify-content:space-between;text-align:left}.conflict-lesson:hover{border-color:var(--danger)}.conflict-lesson small,.conflict-lesson strong{display:block}.conflict-lesson small{color:var(--muted);margin-top:3px}.data-table{width:100%;border-collapse:collapse}.data-table th{padding:12px 14px;text-align:left;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.08em}.data-table td,.data-table th{border-bottom:1px solid var(--line)}.data-table td{padding:15px 14px;font-size:13px}.data-table tr:last-child td{border-bottom:0}.person{display:flex;align-items:center;gap:10px;font-weight:700}.tag{padding:5px 9px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);color:var(--muted);font-size:11px;margin:2px}.status,.tag{display:inline-flex}.status{align-items:center;gap:6px;font-size:12px;color:var(--brand)}.status:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}.status.away{color:var(--danger)}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:14px;gap:14px}.resource-card{padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:15px}.resource-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.resource-card h3{font-size:16px;margin-bottom:4px}.subject-dot{width:11px;height:11px;border-radius:4px;background:var(--subject);margin-top:5px}.resource-meta{display:flex;gap:18px;margin-top:20px;color:var(--muted);font-size:12px}.modal-backdrop{position:fixed;inset:0;z-index:50;background:rgba(9,18,13,.48);display:grid;place-items:center;padding:20px}.modal{width:min(520px,100%);max-height:min(820px,88vh);overflow-y:auto;background:var(--surface);border-radius:20px;padding:24px;box-shadow:0 30px 80px rgba(0,0,0,.24)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.form-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px}.form-grid .field{margin:0}.field:has(.check-grid){grid-column:1/-1}.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:8px;gap:8px;padding:10px;border:1px solid var(--line);border-radius:12px;background:var(--surface-2)}.check-option{display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:9px;background:var(--surface);border:1px solid var(--line);font-size:13px;cursor:pointer}.check-option:has(input:checked){border-color:var(--brand);background:var(--brand-2);color:var(--brand)}.check-option input{accent-color:var(--brand)}.modal-actions{position:-webkit-sticky;position:sticky;bottom:-24px;display:flex;justify-content:flex-end;gap:9px;margin:22px -24px -24px;padding:14px 24px 24px;background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 70%,transparent),var(--surface) 30%);border-top:1px solid var(--line)}.period-modal{width:min(900px,100%);max-height:88vh;overflow:auto}.period-list{display:grid;grid-gap:9px;gap:9px;margin-bottom:14px}.period-editor-row{display:grid;grid-template-columns:34px minmax(150px,1fr) 120px 120px 90px 42px;grid-gap:8px;gap:8px;align-items:center}.period-number{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--surface-2);color:var(--muted);font-size:12px;font-weight:800}.check-option.compact{padding:8px;justify-content:center}.assignment-form{display:grid;grid-template-columns:1fr 1fr 160px 1fr;grid-gap:12px;gap:12px;align-items:end}.assignment-form .field{margin:0}.assignment-check{min-height:48px}.empty-state{padding:28px;text-align:center;color:var(--muted)}.mobile-menu{display:none}@media (max-width:1100px){.stats{grid-template-columns:repeat(3,1fr)}.resource-grid{grid-template-columns:repeat(2,1fr)}.assignment-form{grid-template-columns:1fr 1fr}}@media (max-width:860px){.login-page{grid-template-columns:1fr}.login-art{display:none}.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;left:-270px;transition:left .2s;box-shadow:var(--shadow)}.sidebar.open{left:0}.mobile-menu{display:grid}.topbar{padding:0 18px}.content{padding:24px 18px 40px}.search{display:none}.dashboard-grid{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}}@media (max-width:560px){.login-panel{padding:28px 22px}.page-heading{flex-direction:column}.page-heading h1{font-size:27px}.form-grid,.resource-grid,.stats{grid-template-columns:1fr}.progress-row{grid-template-columns:100px 1fr 40px}.period-editor-row{grid-template-columns:30px 1fr 1fr}.period-editor-row .input:first-of-type{grid-column:2/-1}}