:root{--ubb-blue:#005596;--ubb-deep:#003b6b;--ubb-light:#eef5fa;--ink:#1f2937;--muted:#667085;--line:#d9e1e8;--bg:#f5f7f9;--danger:#b42318;--warning:#d19a00;--ok:#16865b}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--ink)}a{color:var(--ubb-blue);text-decoration:none}.topbar{height:68px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:50}.brand{display:flex;align-items:center;gap:12px}.brand-mark{background:var(--ubb-blue);color:white;font-weight:800;padding:10px 8px;border-radius:8px;letter-spacing:.5px}.brand small{display:block;color:var(--muted);margin-top:2px}.top-actions{display:flex;align-items:center;gap:18px;font-size:14px}.user-chip{background:var(--ubb-light);padding:8px 10px;border-radius:999px}.inline-form{display:inline}.link-button{background:none;border:0;color:var(--ubb-blue);cursor:pointer}.period-strip{background:white;border-bottom:1px solid var(--line);padding:8px 24px}.period-strip form{display:flex;align-items:center;gap:8px}.period-strip select{padding:6px 8px;border:1px solid var(--line);border-radius:6px}.period-status{font-size:12px;padding:4px 8px;border-radius:999px}.period-status.open{background:#e6f6ef;color:#087a4e}.period-status.closed{background:#fdecec;color:#b42318}.page-shell{padding:20px 24px}.message{padding:10px 14px;border-radius:8px;background:white;border:1px solid var(--line);margin-bottom:12px}.message.success{border-left:4px solid var(--ok)}.message.warning{border-left:4px solid var(--warning)}.calendar-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:18px}.sidebar,.calendar-panel,.panel,.form-card,.login-card{background:white;border:1px solid var(--line);border-radius:12px;box-shadow:0 1px 2px rgba(0,0,0,.03)}.sidebar{padding:14px;height:max-content;position:sticky;top:108px}.calendar-panel{padding:16px;min-width:0}.btn{display:inline-flex;justify-content:center;align-items:center;border:1px solid var(--line);background:white;color:var(--ink);padding:9px 13px;border-radius:7px;cursor:pointer;font-weight:600}.btn.primary{background:var(--ubb-blue);border-color:var(--ubb-blue);color:white}.btn.danger{background:#fff2f0;border-color:#f0b5ae;color:var(--danger)}.btn.full{width:100%;margin-bottom:12px}.filter-form h3,.legend h3{font-size:13px;margin:14px 0 7px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.filter-form label{display:block;font-size:13px;margin:9px 0}.filter-form input[type=search],.filter-form input[name=section],.filter-form select,.form-grid input,.form-grid select,.form-grid textarea,.login-card input{width:100%;padding:8px 9px;border:1px solid #cbd5df;border-radius:7px;background:white}.semester-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;font-size:13px}.semester-grid label{margin:0}.filter-actions{display:flex;gap:8px;margin:12px 0}.legend{font-size:13px;border-top:1px solid var(--line);margin-top:10px;padding-top:4px}.legend p{margin:7px 0}.dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px}.dot.green{background:var(--ok)}.dot.yellow{background:var(--warning)}.dot.red{background:var(--danger)}.event-warning{box-shadow:0 0 0 2px #ffd970 inset!important}.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.38);display:flex;align-items:center;justify-content:center;z-index:100}.modal-backdrop.hidden{display:none}.modal-card{width:min(560px,92vw);background:white;border-radius:14px;padding:22px;position:relative}.modal-close{position:absolute;right:14px;top:10px;border:0;background:none;font-size:26px;cursor:pointer}.detail-grid{display:grid;grid-template-columns:120px 1fr;gap:8px 12px}.detail-grid dt{color:var(--muted)}.detail-grid dd{margin:0}.modal-actions{display:flex;justify-content:flex-end;margin-top:18px}.page-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:16px}.page-heading h1{margin:0;font-size:24px}.page-heading p{color:var(--muted);margin:5px 0}.form-card{max-width:720px;margin:20px auto;padding:22px}.form-card.wide{max-width:920px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-grid label>span{display:block;font-weight:600;font-size:13px;margin-bottom:6px}.form-grid ul{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:6px}.span-2{grid-column:1/-1}.form-actions{display:flex;gap:8px}.error,.form-errors{color:var(--danger)}.login-card{max-width:420px;margin:70px auto;padding:26px}.form-stack{display:grid;gap:14px}.muted{font-size:13px;color:var(--muted)}.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:16px}.kpi{background:white;border:1px solid var(--line);border-radius:12px;padding:16px}.kpi span{display:block;font-size:12px;color:var(--muted);text-transform:uppercase}.kpi strong{display:block;font-size:26px;margin-top:5px}.dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.panel{padding:16px}.panel.span-all{grid-column:1/-1}.panel h2{font-size:17px;margin-top:0}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);font-size:13px}th{color:var(--muted)}.badge.warning{background:#fff4cc;color:#7a5600;padding:3px 7px;border-radius:999px}.empty-state{padding:50px;text-align:center;color:var(--muted)}
@media(max-width:900px){.calendar-layout{grid-template-columns:1fr}.sidebar{position:static}.top-actions a:not(:first-child){display:none}.kpi-grid{grid-template-columns:1fr 1fr}.dashboard-grid{grid-template-columns:1fr}.panel.span-all{grid-column:auto}}
@media(max-width:620px){.page-shell{padding:12px}.topbar{padding:0 12px}.brand small{display:none}.calendar-panel{padding:8px}.form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}.kpi-grid{grid-template-columns:1fr}.detail-grid{grid-template-columns:90px 1fr}}

/* V2.2: selector de asignatura y bloques dependientes de la fecha */
.course-picker{border:1px solid var(--line);border-radius:10px;padding:14px;background:#fbfdff}.course-picker>label span,.field-label{display:block;font-weight:600;font-size:13px;margin-bottom:6px}.course-search-row{display:grid;grid-template-columns:1fr auto;gap:8px;margin-bottom:10px}.course-search-row input{width:100%;padding:9px 10px;border:1px solid #cbd5df;border-radius:7px;background:white}.course-picker select{width:100%;padding:9px 10px;border:1px solid #cbd5df;border-radius:7px;background:white}.field-help{display:block;color:var(--muted);font-size:12px;margin-top:5px}.hidden-native-select{display:none!important}.additional-sections{border:1px dashed var(--line);border-radius:10px;padding:12px}.hidden-section{display:none!important}.section-chip-list{display:flex;gap:8px;flex-wrap:wrap}.section-chip{display:inline-flex!important;align-items:center;gap:7px!important;margin:0!important;padding:7px 10px;border:1px solid var(--line);border-radius:999px;background:white;font-size:13px;cursor:pointer}.section-chip input{width:auto!important;margin:0}.disabled-field{opacity:.65}.fc-event-academic{font-size:10px;line-height:1.15;opacity:.92;margin-top:2px;white-space:normal}.fc-event-title-main{font-weight:700;white-space:normal}.event-email{font-size:10px;opacity:.9;white-space:normal;overflow-wrap:anywhere}
@media(max-width:620px){.course-search-row{grid-template-columns:1fr}.course-search-row .btn{width:100%}}

/* V2.3: visible build marker */
.version-chip{display:inline-block;margin-left:.35rem;padding:.08rem .38rem;border-radius:999px;font-size:.68rem;font-weight:700;line-height:1.3;background:#e7f2f8;color:#1b6686;vertical-align:middle;border:1px solid #b9d8e6;}

/* V2.5: panel de coordinación y mapa de carga */
.dashboard-heading{align-items:center}.kpi-grid-five{grid-template-columns:repeat(5,1fr)}.kpi small{display:block;color:var(--muted);font-size:11px;margin-top:4px}.kpi-attention{border-color:#efd08a;background:#fffbeb}.panel-heading-row{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.panel-heading-row h2{margin-bottom:4px}.load-map-panel{margin-bottom:16px}.load-legend{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--muted);justify-content:flex-end}.load-legend span{display:inline-flex;align-items:center;gap:5px}.load-swatch{width:11px;height:11px;border-radius:3px;display:inline-block}.load-swatch.normal{background:#dff3e9;border:1px solid #8dcbb0}.load-swatch.warning{background:#fff1b8;border:1px solid #e0bd4a}.load-swatch.high{background:#fde2df;border:1px solid #dc8d84}.load-table-wrap{overflow:auto;margin-top:10px}.load-table{min-width:820px}.load-table th,.load-table td{text-align:center;padding:5px}.load-table .week-col{position:sticky;left:0;background:white;z-index:2;text-align:left;min-width:90px}.load-table .week-col strong{display:block}.load-table .week-col small{display:block;color:var(--muted);font-weight:400;font-size:10px}.load-cell{display:flex;align-items:center;justify-content:center;min-width:42px;height:34px;border-radius:7px;font-weight:800;color:var(--ink);border:1px solid transparent;transition:transform .12s ease,box-shadow .12s ease}.load-cell:hover{transform:translateY(-1px);box-shadow:0 2px 6px rgba(0,0,0,.09)}.load-cell.empty{background:#f5f7f9;color:#98a2b3}.load-cell.normal{background:#dff3e9;border-color:#b5ddca;color:#116746}.load-cell.warning{background:#fff1b8;border-color:#e8cb70;color:#795700}.load-cell.high{background:#fde2df;border-color:#e8aaa3;color:#a22920}.dashboard-grid-3{grid-template-columns:repeat(3,1fr)}.count-chip{display:inline-flex;min-width:34px;height:34px;align-items:center;justify-content:center;border-radius:999px;background:var(--ubb-light);color:var(--ubb-blue);font-weight:800}
@media(max-width:1100px){.kpi-grid-five{grid-template-columns:repeat(3,1fr)}.dashboard-grid-3{grid-template-columns:1fr 1fr}.dashboard-grid-3 .span-all{grid-column:1/-1}}
@media(max-width:720px){.kpi-grid-five{grid-template-columns:1fr 1fr}.dashboard-grid-3{grid-template-columns:1fr}.dashboard-grid-3 .span-all{grid-column:auto}.panel-heading-row{flex-direction:column}.load-legend{justify-content:flex-start}}

/* V2.6: carga masiva Excel */
.import-panel{margin-bottom:16px}.import-step-heading{display:flex;align-items:flex-start;gap:12px;margin-bottom:16px}.import-step-heading.compact{margin-bottom:10px}.import-step-heading h2{margin:0 0 4px;font-size:18px}.step-number{display:inline-flex;align-items:center;justify-content:center;flex:0 0 30px;height:30px;border-radius:999px;background:var(--ubb-blue);color:white;font-weight:800}.step-number.success{background:#16794b}.import-upload-row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:end}.file-field span{display:block;font-weight:600;font-size:13px;margin-bottom:6px}.file-field input[type=file]{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;background:#fff}.sync-options{display:grid;gap:4px;margin-top:14px;padding:12px;border-radius:9px;background:#f8fafc;border:1px solid var(--line)}.sync-options label{font-weight:600;font-size:13px}.sync-options small{color:var(--muted);margin:0 0 6px 24px}.import-kpis{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin:12px 0}.mini-kpi{padding:12px;border:1px solid var(--line);border-radius:10px;background:white}.mini-kpi span{display:block;color:var(--muted);font-size:11px;text-transform:uppercase}.mini-kpi strong{font-size:23px}.mini-kpi.attention{background:#fffbeb;border-color:#efd08a}.mini-kpi.danger{background:#fff1f0;border-color:#edaaa4}.recognized-sheets{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:8px 0 14px}.sheet-chip{display:inline-flex;padding:4px 8px;border-radius:999px;background:var(--ubb-light);color:var(--ubb-blue);font-size:12px;font-weight:700}.validation-box{border:1px solid var(--line);border-radius:10px;padding:12px;margin-top:12px;overflow:auto}.validation-box h3{margin:0 0 8px;font-size:15px}.validation-error{border-color:#e4a29b;background:#fff7f6}.validation-warning{border-color:#e4c66a;background:#fffdf4}.validation-info{background:#fbfdff}.validation-info summary{cursor:pointer}.details-table-wrap{margin-top:10px;max-height:320px;overflow:auto}.confirm-import-box{margin-top:16px;padding:14px;border:1px solid #9fd2b8;background:#f4fbf7;border-radius:10px}.import-confirm{min-width:190px}.cannot-import{margin-top:14px;padding:12px;border-radius:8px;background:#fff1f0;border:1px solid #edaaa4;color:#9f2d26;font-weight:700}.import-help-panel code{display:block;margin-top:6px;padding:8px;border-radius:7px;background:#f5f7f9;white-space:normal;color:#344054}.format-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.btn-secondary{background:white}.btn.primary{background:var(--ubb-blue);color:white;border-color:var(--ubb-blue)}
@media(max-width:1000px){.import-kpis{grid-template-columns:repeat(3,1fr)}}
@media(max-width:720px){.import-upload-row,.format-grid{grid-template-columns:1fr}.import-kpis{grid-template-columns:1fr 1fr}}