:root{--bg:#f4f7fb;--panel:#fff;--text:#102033;--muted:#667085;--blue:#0f4c81;--blue2:#1769aa;--border:#d9e2ef;--green:#16a34a;--orange:#f59e0b;--red:#dc2626;--shadow:0 12px 28px rgba(15,76,129,.08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.layout{display:flex;min-height:100vh}.sidebar{width:285px;background:linear-gradient(180deg,#0f4c81,#082d50);color:#fff;position:fixed;inset:0 auto 0 0;padding:22px 16px}.brand{font-weight:900;font-size:20px;line-height:1.15}.brand small{display:block;font-size:12px;font-weight:600;opacity:.8;margin-top:7px}.nav{margin-top:24px}.nav a{display:flex;gap:11px;align-items:center;padding:12px 14px;border-radius:13px;margin:5px 0;color:#e8f2ff;font-weight:750}.nav a.active,.nav a:hover{background:rgba(255,255,255,.16)}.main{margin-left:285px;width:calc(100% - 285px);padding:24px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:12px}.topbar h1{margin:0;font-size:26px}.date,.muted{color:var(--muted)}.card{background:var(--panel);border:1px solid var(--border);border-radius:20px;padding:19px;box-shadow:var(--shadow)}.grid{display:grid;gap:16px}.cards{grid-template-columns:repeat(4,minmax(0,1fr))}.metric .label{font-size:14px;color:var(--muted);font-weight:650}.metric .value{font-size:31px;font-weight:900;margin-top:7px}.section-title{font-size:18px;font-weight:900;margin:4px 0 14px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;padding:10px 14px;font-weight:850;cursor:pointer;background:var(--blue);color:#fff}.btn.secondary{background:#e9f2fb;color:var(--blue)}.btn.danger{background:var(--red)}.toolbar{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:14px}.input,select,textarea{border:1px solid var(--border);border-radius:12px;padding:11px 12px;background:#fff;font:inherit;min-height:42px}.input{min-width:260px}.searchbar{display:flex;gap:8px;align-items:center}.searchbar input{min-width:360px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field label{display:block;font-weight:850;font-size:13px;margin-bottom:6px}.field input,.field select,.field textarea{width:100%}.full{grid-column:1/-1}table{width:100%;border-collapse:collapse;background:#fff;border-radius:16px;overflow:hidden}th,td{text-align:left;padding:13px;border-bottom:1px solid var(--border);vertical-align:top}th{background:#f8fafc;color:#344054;font-size:12px;text-transform:uppercase;letter-spacing:.04em}.badge{display:inline-flex;border-radius:999px;padding:5px 10px;background:#e9f2fb;color:var(--blue);font-weight:850;font-size:12px;margin:2px}.badge.green{background:#dcfce7;color:#166534}.badge.orange{background:#fef3c7;color:#92400e}.badge.red{background:#fee2e2;color:#991b1b}.two-col{display:grid;grid-template-columns:1.25fr .75fr;gap:16px}.three-col{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.notice{padding:13px 15px;border-radius:14px;background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;margin-bottom:14px}.empty{padding:28px;text-align:center;color:var(--muted)}.timeline{position:relative;padding-left:18px}.timeline:before{content:"";position:absolute;left:4px;top:4px;bottom:4px;width:2px;background:#dbe4f0}.tl{position:relative;margin:0 0 12px;padding:12px;background:#f8fafc;border:1px solid var(--border);border-radius:14px}.tl:before{content:"";position:absolute;left:-19px;top:17px;width:10px;height:10px;background:var(--blue);border-radius:999px}.tabs{display:flex;gap:8px;border-bottom:1px solid var(--border);margin-bottom:16px;overflow-x:auto}.tabs a{padding:12px 14px;border-radius:12px 12px 0 0;color:var(--muted);font-weight:850}.tabs a.active{background:#fff;color:var(--blue);border:1px solid var(--border);border-bottom-color:#fff}.login{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#0f4c81,#eef6ff)}.login .card{width:min(430px,92vw)}.quick{display:flex;flex-wrap:wrap;gap:9px}.status-dot{width:10px;height:10px;border-radius:99px;display:inline-block;background:var(--green);margin-right:6px}.footer-note{margin-top:22px;color:var(--muted);font-size:12px}@media(max-width:950px){.sidebar{position:static;width:100%;height:auto}.layout{display:block}.main{margin-left:0;width:100%;padding:16px}.cards,.two-col,.three-col,.form-grid{grid-template-columns:1fr}.searchbar,.toolbar{display:block}.searchbar input,.input{min-width:100%;width:100%;margin-bottom:8px}}
.nav a.sub{font-size:13px;margin-left:18px;padding:8px 12px;opacity:.92;background:rgba(255,255,255,.06)}
.nav a.sub:hover{background:rgba(255,255,255,.14)}
.badge.blue{background:#dbeafe;color:#1e40af}.badge.yellow{background:#fef9c3;color:#854d0e}.badge.gray{background:#f3f4f6;color:#374151}.badge.purple{background:#ede9fe;color:#5b21b6}.badge.brown{background:#f5e6d3;color:#7c2d12}

.crm-form-block{border:1px solid var(--border);border-radius:16px;padding:16px;margin:16px 0;background:#fbfdff}.crm-form-block .section-title{font-size:16px;margin-bottom:12px}.soft{background:#fbfdff}

.switch-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--border)}.switch-row input{width:24px;height:24px}.switch-row small{color:var(--muted)}

/* v37: menú lateral plegable */
.sidebar{transition:width .18s ease}.main{transition:margin-left .18s ease,width .18s ease}.sidebar-toggle{position:absolute;right:14px;top:14px;border:0;background:rgba(255,255,255,.14);color:#fff;border-radius:10px;width:38px;height:34px;font-size:19px;cursor:pointer}.sidebar-toggle:hover{background:rgba(255,255,255,.24)}body.sidebar-collapsed .sidebar{width:88px;overflow:hidden}body.sidebar-collapsed .main{margin-left:88px;width:calc(100% - 88px)}body.sidebar-collapsed .brand{font-size:0;margin-top:44px}body.sidebar-collapsed .brand:before{content:'ERP';font-size:18px;font-weight:900}body.sidebar-collapsed .brand small{display:none}body.sidebar-collapsed .nav a{white-space:nowrap;overflow:hidden;width:56px;height:44px;padding:12px 16px;font-size:0;justify-content:flex-start}body.sidebar-collapsed .nav a::first-letter{font-size:20px}body.sidebar-collapsed .nav a.sub{display:none}.student-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.student-profile h2{margin-top:0}
@media(max-width:950px){body.sidebar-collapsed .sidebar{width:100%}body.sidebar-collapsed .main{margin-left:0;width:100%}}
/* v43 - submenús laterales plegables */
.nav-group{margin:5px 0}.nav-heading{display:flex;gap:11px;align-items:center;width:100%;padding:12px 14px;border:0;border-radius:13px;background:transparent;color:#e8f2ff;font:inherit;font-weight:850;cursor:pointer;text-align:left}.nav-heading:hover,.nav-heading.active{background:rgba(255,255,255,.16)}.nav-heading span{flex:1}.nav-heading b{font-size:14px;transition:transform .16s ease}.nav-group.closed .nav-heading b{transform:rotate(-90deg)}.nav-submenu{display:block}.nav-group.closed .nav-submenu{display:none}body.sidebar-collapsed .nav-heading{white-space:nowrap;overflow:hidden;width:56px;height:44px;padding:12px 16px;font-size:0;justify-content:flex-start}body.sidebar-collapsed .nav-heading span,body.sidebar-collapsed .nav-heading b{display:none}body.sidebar-collapsed .nav-submenu{display:none!important}

/* v60: filtros de cobros por curso y fecha de pago. */
.filters-form{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end;justify-content:flex-end}.filters-form .field{display:flex;flex-direction:column;gap:4px}.filters-form .field label{font-size:12px;margin:0;color:var(--muted)}.filters-form .field .input,.filters-form .field select{width:auto;min-width:154px}.filter-help{margin:0 0 12px}
@media(max-width:950px){.filters-form{display:grid;grid-template-columns:1fr;width:100%}.filters-form .field .input,.filters-form .field select{width:100%;min-width:0}}

/* v63: Caja diaria */
.caja-toolbar{align-items:flex-start}.caja-toolbar .section-title{margin-bottom:4px}.caja-subtitle{margin:0}.caja-selector{min-width:220px}.caja-selector label{display:block;font-size:12px;font-weight:850;color:var(--muted);margin-bottom:5px}.caja-selector select{width:100%}.caja-empty{max-width:940px}.caja-empty .hint{margin:14px 0 0}.caja-status{display:flex;justify-content:space-between;align-items:center;gap:18px;border-left:5px solid var(--green)}.caja-status.cerrada{border-left-color:#667085}.caja-status h2{margin:8px 0 6px}.caja-status p{margin:4px 0;color:var(--muted)}.caja-metrics{grid-template-columns:repeat(5,minmax(0,1fr))}.caja-metrics .metric .value{font-size:25px}.caja-form{max-width:940px}.caja-form.cierre{border-color:#fecaca}.caja-cierre-resumen{border-color:#d1d5db}.negative{color:var(--red)!important}.caja-history table{min-width:820px}@media(max-width:1100px){.caja-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:950px){.caja-toolbar,.caja-status{display:block}.caja-selector{margin-top:12px;min-width:0}.caja-metrics{grid-template-columns:1fr}.caja-history{overflow-x:auto}}
@media print{.sidebar,.topbar,.tabs,.toolbar form,.quick,.btn{display:none!important}.main{margin:0!important;width:100%!important;padding:0!important}.card{box-shadow:none!important;break-inside:avoid}.caja-history{display:none!important}}


/* v64: seguimiento de impagos y arqueo de cierre */
.arqueo-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:10px}.arqueo-item{border:1px solid var(--border);border-radius:12px;padding:10px;background:#fbfdff}.arqueo-item label{display:block;font-weight:900;font-size:13px;margin-bottom:7px}.arqueo-item input{width:100%;min-height:38px;border:1px solid var(--border);border-radius:9px;padding:7px}.arqueo-subtotal{display:block;margin-top:6px;color:var(--muted);font-size:12px;font-weight:750}.recuento-table{max-width:620px}.caja-selector{display:flex;gap:8px;align-items:flex-end}.caja-selector .field{min-width:160px}.caja-selector .input{min-width:0}.caja-history{overflow-x:auto}.quick .btn{white-space:nowrap}@media(max-width:1200px){.arqueo-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}@media(max-width:700px){.arqueo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.caja-selector{display:grid;grid-template-columns:1fr;width:100%}.caja-selector .field{min-width:0}}


/* v66: resumen de recibos por curso */
.course-summary-head{align-items:flex-start}.course-summary-head .section-title{margin-bottom:5px}.course-summary-head p{margin:0}.course-summary-scroll{overflow-x:auto}.course-summary table{min-width:760px}.course-summary tfoot th{background:#eef6ff;color:var(--text);text-transform:none;font-size:13px;letter-spacing:0}.summary-link{display:flex;flex-direction:column;gap:3px;min-width:130px;padding:9px 11px;border:1px solid var(--border);border-radius:12px;background:#fbfdff}.summary-link b{font-size:13px}.summary-link span{font-weight:900;font-size:16px}.summary-link.green{border-color:#bbf7d0;background:#f0fdf4;color:#166534}.summary-link.orange{border-color:#fde68a;background:#fffbeb;color:#92400e}.summary-link.red{border-color:#fecaca;background:#fef2f2;color:#991b1b}.summary-link.blue{border-color:#bfdbfe;background:#eff6ff;color:#1d4ed8}.summary-link:hover{filter:brightness(.98);transform:translateY(-1px)}
@media(max-width:950px){.course-summary-head{display:block}.course-summary-head .btn{margin-top:12px}.course-summary-scroll{margin:0 -2px}}


/* v76: áreas dentro de Gestión Económica. */
.nav .nav-submenu .sub-disabled{display:flex;gap:8px;align-items:center;padding:8px 12px;margin:5px 0 5px 18px;border-radius:13px;color:#bcd0e6;background:rgba(255,255,255,.035);font-size:13px;font-weight:750;cursor:not-allowed;opacity:.7;user-select:none}.nav .nav-submenu .sub-disabled small{font-size:10px;margin-left:auto;font-weight:750;opacity:.88}.finance-area-tabs{display:flex;gap:8px;border-bottom:1px solid var(--border);margin-bottom:12px;overflow-x:auto}.finance-area-tabs a,.finance-area-tabs span{display:inline-flex;align-items:center;gap:7px;padding:10px 14px;border-radius:12px 12px 0 0;font-weight:850;white-space:nowrap}.finance-area-tabs a.active{background:#fff;color:var(--blue);border:1px solid var(--border);border-bottom-color:#fff}.finance-area-tabs .disabled{background:#f1f5f9;color:#98a2b3;border:1px solid var(--border);cursor:not-allowed;user-select:none}.finance-area-tabs small{font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.03em}@media print{.finance-area-tabs{display:none!important}}body.sidebar-collapsed .nav .nav-submenu .sub-disabled{display:none!important}


/* v80: buscador específico de alumnos dentro del expediente del curso. */
.course-student-toolbar{align-items:flex-end}
.course-student-toolbar .section-title{margin-bottom:4px}
.course-student-search{justify-content:flex-end}
.course-student-search .input{min-width:320px}
@media(max-width:950px){.course-student-toolbar{display:block}.course-student-search{margin-top:12px}.course-student-search .input{min-width:100%}}


/* v81: búsqueda instantánea de alumnos dentro del expediente del curso. */
.course-student-search .btn[hidden]{display:none!important}
.course-student-search input[type="search"]::-webkit-search-cancel-button{cursor:pointer}
#course-student-no-results[hidden]{display:none}


/* v82: filtro por estado dentro del expediente de curso e importador Google Sheets. */
.course-student-search select{min-width:170px}
.gsheets-preview-page{margin:20px;max-width:none}
.gsheets-preview-table{overflow-x:auto}
.gsheets-preview-table table{min-width:1360px}
.gsheets-preview-table input[type="checkbox"]{width:18px;height:18px;cursor:pointer}
.gsheets-preview-page code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#eef2f7;border-radius:5px;padding:1px 5px}
.row-error{background:#fff8f8}.row-muted{opacity:.72}
@media(max-width:950px){.course-student-search select{min-width:100%;width:100%;margin-bottom:8px}.gsheets-preview-page{margin:16px}.gsheets-preview-table{margin:0 -4px}}

/* v85 · Consulta de alumno: filtros por texto y curso */
.consulta-alumno-toolbar{align-items:flex-end}
.consulta-alumno-filters{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-end}
.consulta-alumno-filters .field{display:flex;flex-direction:column;gap:5px}
.consulta-alumno-filters .field label{font-size:12px;font-weight:850;color:var(--muted);margin:0}
.consulta-alumno-filters .input{min-width:310px}
.consulta-alumno-filters select{min-width:330px;max-width:520px}
@media(max-width:950px){.consulta-alumno-toolbar{display:block}.consulta-alumno-filters{display:grid;grid-template-columns:1fr}.consulta-alumno-filters .input,.consulta-alumno-filters select{min-width:0;width:100%}.consulta-alumno-toolbar>.quick{margin-top:10px}}


/* v89: filtro de mensualidad en resumen por curso. */
.course-summary-head .quick{align-items:flex-end;justify-content:flex-end}.course-summary-filter{margin:0}.course-summary-filter .field select{min-width:215px}@media(max-width:950px){.course-summary-head .quick{margin-top:12px;align-items:stretch}.course-summary-filter{width:100%}.course-summary-filter .field select{width:100%;min-width:0}}

/* v90: gestión financiera de profesores y horas mensuales. */
.teacher-finance-toolbar{align-items:flex-end}
.teacher-period-filter{display:flex;gap:8px;align-items:flex-end}
.teacher-period-filter .field{min-width:220px}
.teacher-period-filter label{display:block;font-size:12px;font-weight:850;color:var(--muted);margin-bottom:5px}
.teacher-period-filter select{width:100%}
.teacher-finance-metrics .metric .value{font-size:26px}
.teacher-finance-list .toolbar{align-items:flex-start}
.teacher-finance-table-wrap,.teacher-hours-table-wrap{overflow-x:auto}
.teacher-finance-table-wrap table{min-width:1080px}
.teacher-hours-table-wrap table{min-width:1080px}
.teacher-hours-table-wrap textarea{min-width:230px;min-height:62px}
.teacher-hours-table-wrap .input{min-width:140px;width:150px}
.teacher-course-hours-card{max-width:100%}
.teacher-hours-card{max-width:100%}
@media(max-width:950px){.teacher-finance-toolbar{display:block}.teacher-period-filter{margin-top:12px;display:grid;grid-template-columns:1fr}.teacher-period-filter .field{min-width:0}.teacher-period-filter .btn{width:100%}.teacher-finance-list .toolbar{display:block}.teacher-finance-list .toolbar .btn{margin-top:12px}}

/* v97: identidad corporativa configurable */
.brand img{display:block;max-width:205px;max-height:76px;object-fit:contain;margin:10px 0 4px}.login-card{text-align:center}.login-logo{max-width:260px;max-height:105px;object-fit:contain;margin:0 auto 14px;display:block}.login-logo-text{font-weight:950;font-size:24px;color:var(--blue);margin-bottom:8px}.login-claim{display:inline-block;padding:8px 12px;border-radius:999px;background:var(--corp-accent);color:var(--blue);font-weight:900;margin:4px 0 16px}.corp-preview img{display:block;max-width:280px;max-height:120px;object-fit:contain;margin-bottom:12px}.corp-preview-name{font-size:24px;font-weight:950;color:var(--blue);margin-bottom:10px}.corp-color-row{display:flex;gap:10px;margin:14px 0}.corp-color-row span{display:block;width:54px;height:38px;border-radius:12px;border:1px solid var(--border)}.field input[type="color"]{min-height:42px;padding:4px;cursor:pointer}code{background:#eef2f7;border-radius:6px;padding:1px 5px}
body.sidebar-collapsed .brand img{display:none}body.sidebar-collapsed .brand:before{content:'ERP';font-size:18px;font-weight:900}

.corp-admin-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(320px,.95fr);gap:16px;align-items:start}
.corp-preview-card{position:sticky;top:18px}
.corp-preview{display:flex;flex-direction:column;gap:12px}
.corp-preview h2{margin:0;color:var(--blue)}
.corp-preview p{margin:0}
.corp-preview-block{padding:12px 14px;border-radius:14px;background:#f8fafc;border:1px solid var(--border)}
@media(max-width:1100px){.corp-admin-layout{grid-template-columns:1fr}.corp-preview-card{position:static}}