:root{--primary:#0f766e;--accent:#22c55e;--dark:#0f172a;--muted:#64748b;--soft:#f1f5f9;--line:#e2e8f0;}
*{box-sizing:border-box} body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:#f8fafc;color:#0f172a;}
.login-page{min-height:100vh;display:flex;align-items:center;padding:24px 0;background:radial-gradient(circle at top left,#ccfbf1,#f8fafc 40%,#e0f2fe)}
.login-card{max-width:1000px;margin:auto;border:0;border-radius:30px;overflow:hidden;box-shadow:0 30px 90px rgba(15,23,42,.16)}
.login-hero{background:linear-gradient(135deg,#0f766e,#0f172a);color:white;padding:55px}.login-hero h1{font-weight:900;font-size:42px}.login-box{padding:55px;background:white}
.app-shell{display:flex;min-height:100vh}.sidebar{width:275px;background:linear-gradient(180deg,#0f172a,#134e4a);color:white;padding:24px;position:fixed;height:100vh;overflow:auto}.brand{display:flex;flex-direction:column;align-items:flex-start}.brand-logo{display:block;width:205px;height:auto}.brand span{display:block;margin:2px 0 0 57px;font-size:10px;letter-spacing:3px;color:#99f6e4;text-transform:uppercase}.brand-icon{width:46px;height:46px;border-radius:16px;background:rgba(34,197,94,.2);display:grid;place-items:center;color:#86efac}.login-brand img{display:block;width:min(100%,390px);height:auto;filter:drop-shadow(0 8px 20px rgba(0,0,0,.2))}.login-brand small{display:block;margin:8px 0 0 4px;color:#d1fae5;font-size:13px;letter-spacing:.08em;text-transform:uppercase}.sidebar .nav-link{color:#cbd5e1;border-radius:14px;margin:4px 0;padding:12px 14px;font-weight:600}.sidebar .nav-link i{width:24px}.sidebar .nav-link.active,.sidebar .nav-link:hover{background:rgba(255,255,255,.12);color:white}.content{margin-left:275px;width:calc(100% - 275px)}.topbar{height:86px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px;gap:15px;position:sticky;top:0;z-index:3}.topbar h1{font-size:24px;margin:0;font-weight:850}.topbar small{color:var(--muted)}.page-body{padding:28px}.kpi-card,.pro-card{background:white;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 15px 35px rgba(15,23,42,.06)}.kpi-card .icon{width:48px;height:48px;border-radius:16px;background:#ecfdf5;color:var(--primary);display:grid;place-items:center;font-size:20px}.kpi-card h3{font-weight:900;margin:10px 0 0}.table-card{background:white;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:0 15px 35px rgba(15,23,42,.06)}.table-card .table{margin:0}.btn-primary{background:var(--primary);border-color:var(--primary)}.btn-primary:hover{background:#115e59;border-color:#115e59}.badge-paid{background:#dcfce7;color:#166534}.badge-pending{background:#fef9c3;color:#854d0e}.badge-late{background:#fee2e2;color:#991b1b}.avatar{width:42px;height:42px;border-radius:14px;object-fit:cover;background:#e2e8f0}.search-input{border-radius:16px;padding:12px 16px}.modal-content{border-radius:24px;border:0}.form-control,.form-select{border-radius:14px;padding:10px 12px}.section-title{font-weight:900;margin-bottom:16px}.hero-panel{border-radius:30px;background:linear-gradient(135deg,#0f766e,#0f172a);color:white;padding:34px;position:relative;overflow:hidden}.hero-panel:after{content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;background:rgba(34,197,94,.25);filter:blur(8px);border-radius:999px}
@media(max-width:991px){.sidebar{transform:translateX(-100%);transition:.25s;z-index:20}.sidebar.show{transform:translateX(0)}.content{margin-left:0;width:100%}.topbar{height:auto;min-height:76px;padding:14px}.page-body{padding:16px}.login-hero{padding:35px}.login-box{padding:35px}}
.student-picker{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;max-height:260px;overflow:auto;padding:16px;border:1px solid var(--line);border-radius:16px;background:#f8fafc}@media(max-width:768px){.student-picker{grid-template-columns:1fr}}
/* Componentes de interfaz */
.fw-black{font-weight:900}.mini-stat{background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px}.soft-panel{background:linear-gradient(135deg,#eff6ff,#ecfdf5);border:1px solid #dbeafe;border-radius:28px;padding:26px}.plan-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef2ff;color:#3730a3;font-weight:800}.table thead th{color:#475569;font-size:12px;text-transform:uppercase;letter-spacing:.06em}.sidebar{box-shadow:18px 0 60px rgba(15,23,42,.14)}.topbar{backdrop-filter:blur(12px)}.btn{border-radius:14px}.alert{border:0}.mobile-card{border:1px solid var(--line);border-radius:22px;background:#fff;padding:18px;box-shadow:0 10px 25px rgba(15,23,42,.05)}
@media(max-width:768px){.table-responsive table{min-width:760px}.topbar h1{font-size:18px}.topbar .badge{font-size:11px}.kpi-card,.pro-card{padding:18px;border-radius:20px}.hero-panel{padding:24px;border-radius:24px}.login-hero h1{font-size:32px}}
.payment-total{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-radius:20px;background:linear-gradient(135deg,#ecfdf5,#f0fdfa);color:#134e4a}.payment-total strong{font-size:28px}
.statement-page{background:#e2e8f0;padding:32px;color:#0f172a}.statement-toolbar{max-width:980px;margin:0 auto 18px;display:flex;justify-content:flex-end;gap:10px}.statement-sheet{max-width:980px;margin:auto;background:#fff;border-radius:28px;padding:48px;box-shadow:0 30px 80px rgba(15,23,42,.15)}.statement-header{display:flex;justify-content:space-between;gap:30px;padding-bottom:28px;border-bottom:3px solid #0f766e}.statement-header h1{font-size:38px;font-weight:900;margin:8px 0 0}.statement-header p{color:#64748b;margin:0}.statement-brand{display:block}.statement-brand img{display:block;width:230px;max-width:100%;height:auto}.statement-number{text-align:right;font-size:20px;font-weight:900;color:#0f766e}.statement-number small{display:block;color:#64748b;font-size:13px;margin-top:7px}.statement-student{display:grid;grid-template-columns:1fr 1fr;gap:20px;background:#f8fafc;border-radius:20px;padding:22px;margin:26px 0}.statement-student small,.statement-student strong,.statement-student span{display:block}.statement-student small{font-size:11px;letter-spacing:.12em;color:#64748b}.statement-student strong{font-size:18px;margin:5px 0}.statement-student span{color:#64748b}.statement-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:24px}.statement-summary>div{padding:18px;border:1px solid #e2e8f0;border-radius:18px}.statement-summary span,.statement-summary strong{display:block}.statement-summary span{font-size:12px;color:#64748b}.statement-summary strong{font-size:22px;margin-top:5px}.statement-summary .due{background:#0f766e;color:#fff;border:0}.statement-summary .due span{color:#ccfbf1}.statement-table{width:100%;border-collapse:collapse}.statement-table th{padding:12px;border-bottom:2px solid #cbd5e1;font-size:11px;color:#64748b;text-transform:uppercase;letter-spacing:.08em}.statement-table td{padding:14px 12px;border-bottom:1px solid #e2e8f0}.statement-table small{color:#64748b}.statement-grand-total{margin:28px 0 0 auto;max-width:390px;background:linear-gradient(135deg,#0f766e,#134e4a);color:white;border-radius:20px;padding:20px 24px;display:flex;align-items:center;justify-content:space-between}.statement-grand-total strong{font-size:25px}.statement-footer{border-top:1px solid #e2e8f0;margin-top:36px;padding-top:18px;color:#64748b;font-size:12px}
@media(max-width:700px){.statement-page{padding:10px}.statement-sheet{padding:24px;border-radius:18px}.statement-header,.statement-student{grid-template-columns:1fr;display:grid}.statement-number{text-align:left}.statement-summary{grid-template-columns:1fr}.statement-table{font-size:12px}}
@media print{.statement-page{background:#fff;padding:0}.statement-toolbar{display:none}.statement-sheet{box-shadow:none;border-radius:0;max-width:none;padding:20px}.statement-header h1{font-size:30px}}
.contract-copy{white-space:normal;line-height:1.65;color:#334155}.contract-clauses{border-top:5px solid #7acb36}@media print{.sidebar,.topbar,.btn,.alert{display:none!important}.content{margin:0;width:100%}.page-body{padding:0}.pro-card{box-shadow:none;border-radius:0;break-inside:avoid}.contract-copy{font-size:11px}}
/* Sistema visual y comportamiento adaptable */
body{font-size:15px;line-height:1.5}label{display:inline-block;margin-bottom:6px;font-size:13px;font-weight:750;color:#334155}.form-control,.form-select{border-color:#d8e0ea;min-height:44px;transition:border-color .2s,box-shadow .2s}.form-control:focus,.form-select:focus{border-color:#14b8a6;box-shadow:0 0 0 4px rgba(20,184,166,.12)}.btn{font-weight:700;min-height:42px;display:inline-flex;align-items:center;justify-content:center}.btn-sm{min-height:34px}.table>:not(caption)>*>*{padding:14px 16px}.table tbody tr{transition:background .16s}.table tbody tr:hover{background:#f8fafc}.page-heading,.card-heading{display:flex;align-items:center;justify-content:space-between;gap:18px}.page-heading{margin-bottom:24px}.page-heading h2{font-size:28px;font-weight:900;margin:3px 0}.page-heading p,.card-heading p{color:var(--muted);margin:0}.card-heading{margin-bottom:18px}.card-heading h5{font-weight:850;margin:0 0 3px}.eyebrow{color:var(--primary);font-size:11px;font-weight:900;letter-spacing:.13em;text-transform:uppercase}.help-callout{display:flex;gap:12px;padding:15px 17px;border-radius:16px;background:#effcf9;border:1px solid #c7f3e9;color:#115e59;margin-bottom:20px}.help-callout>i{margin-top:3px}.help-callout b,.help-callout span{display:block}.help-callout span{font-size:13px;margin-top:2px;color:#47766f}.empty-state{padding:38px 18px;text-align:center;color:#64748b;display:flex;flex-direction:column;align-items:center;gap:5px}.empty-state>i{font-size:30px;color:#94a3b8;margin-bottom:5px}.empty-state b{color:#334155}.empty-state.compact{padding:24px 10px;grid-column:1/-1}.icon-warning{background:#fff7ed!important;color:#ea580c!important}.icon-info{background:#eff6ff!important;color:#2563eb!important}.sidebar-backdrop{display:none;border:0;padding:0}.profile-card{text-align:center}.profile-avatar{width:132px;height:132px;object-fit:cover;border-radius:34px;border:5px solid #ecfdf5;box-shadow:0 15px 35px rgba(15,118,110,.18);margin-bottom:18px}.profile-card h3{font-weight:900;font-size:23px;margin:0}.profile-card>p{color:var(--muted);margin:4px 0 10px}.status-dot{display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:800}.status-dot:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}.status-active{background:#dcfce7;color:#15803d}.status-muted{background:#f1f5f9;color:#64748b}.profile-details{text-align:left;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:22px 0;padding:8px 0}.profile-details>div{display:flex;align-items:center;gap:13px;padding:10px 2px}.profile-details i{width:28px;color:var(--primary);text-align:center}.profile-details span,.profile-details small{display:block}.profile-details small{color:var(--muted);font-size:11px}.balance-display{font-size:34px;font-weight:900;padding:20px;border-radius:20px}.balance-display small{display:block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.has-balance{background:#fff1f2;color:#be123c}.is-clear{background:#ecfdf5;color:#047857}.document-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.document-card{display:flex;align-items:center;gap:13px;padding:15px;border:1px solid var(--line);border-radius:17px;text-decoration:none;color:var(--dark);transition:.2s}.document-card:hover{border-color:#99f6e4;transform:translateY(-2px);box-shadow:0 12px 25px rgba(15,23,42,.07)}.document-card>i:first-child{font-size:22px;color:var(--primary)}.document-card>i:last-child{margin-left:auto;color:#94a3b8;font-size:12px}.document-card span,.document-card small{display:block}.document-card small{color:var(--muted)}.reminder-list{display:grid;gap:10px}.reminder-item{display:flex;align-items:center;gap:15px;padding:13px;border:1px solid var(--line);border-radius:17px}.reminder-item.done{opacity:.58}.reminder-item p{margin:2px 0;color:var(--muted)}.reminder-date{width:52px;height:54px;border-radius:15px;background:#ecfdf5;color:#0f766e;display:flex;flex-direction:column;align-items:center;justify-content:center;flex:0 0 auto}.reminder-date b{font-size:20px;line-height:1}.reminder-date span{font-size:9px;font-weight:900}.timeline{position:relative}.timeline-item{display:grid;grid-template-columns:14px 1fr;gap:14px;padding-bottom:20px}.timeline-item>span{width:10px;height:10px;border:2px solid #5eead4;background:#fff;border-radius:50%;margin-top:6px;position:relative}.timeline-item>span:after{content:"";position:absolute;width:1px;height:calc(100% + 20px);background:#dbe6eb;left:3px;top:9px}.timeline-item:last-child>span:after{display:none}.timeline-item b,.timeline-item small{display:block}.timeline-item small{color:var(--muted);font-size:11px}.timeline-item p{color:#475569;margin:4px 0 0}
@media(max-width:1199px){.sidebar{width:250px}.content{margin-left:250px;width:calc(100% - 250px)}.brand-logo{width:185px}}
@media(max-width:991px){.sidebar-backdrop{display:block;position:fixed;inset:0;background:rgba(15,23,42,.55);backdrop-filter:blur(2px);z-index:19;opacity:0;visibility:hidden;transition:.2s}.menu-open .sidebar-backdrop{opacity:1;visibility:visible}.menu-open{overflow:hidden}.topbar>div:nth-child(2){min-width:0}.topbar>div:nth-child(2) small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topbar .ms-auto .badge{display:none}}
@media(max-width:767px){.page-heading,.card-heading{align-items:flex-start;flex-direction:column}.page-heading>.btn,.card-heading>.btn{width:100%}.page-heading h2{font-size:23px}.document-grid{grid-template-columns:1fr}.modal-dialog{margin:10px}.modal-content{border-radius:20px}.modal-body{padding:18px}.table-responsive{margin-left:-18px;margin-right:-18px;width:calc(100% + 36px)}.table-responsive .table{font-size:13px}.page-body{overflow-x:hidden}.login-page{padding:0}.login-card{border-radius:0;min-height:100vh}.login-hero{padding:30px 24px}.login-box{padding:34px 24px}.login-hero .row{display:none}.statement-toolbar{justify-content:stretch}.statement-toolbar .btn{flex:1}}
@media(max-width:480px){.topbar h1{font-size:16px}.topbar{gap:9px}.topbar .btn-outline-danger{font-size:0;width:40px}.topbar .btn-outline-danger:before{content:"\f2f5";font:var(--fa-font-solid);font-size:15px}.page-body{padding:14px}.kpi-card,.pro-card{padding:16px}.student-picker{padding:10px}.payment-total strong{font-size:22px}}
.student-filters{display:grid;grid-template-columns:minmax(260px,2fr) repeat(4,minmax(145px,1fr)) auto;gap:12px;align-items:end;padding:18px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff,#fbfdfd)}.input-icon{position:relative}.input-icon>i{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:#94a3b8;z-index:1}.input-icon .form-control{padding-left:42px}.filter-actions .btn{min-width:44px}.filter-actions span{display:none}.list-summary{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 18px;background:#f8fafc;border-bottom:1px solid var(--line);color:#475569}.list-summary small{color:#94a3b8}.course-label{display:inline-block;max-width:230px;color:#334155;font-weight:700}.balance-chip{display:inline-flex;padding:6px 9px;border-radius:999px;font-size:12px;font-weight:850;white-space:nowrap}.balance-chip.due{background:#fff1f2;color:#be123c}.balance-chip.clear{background:#ecfdf5;color:#047857}.table-actions{white-space:nowrap}.table-actions .btn{margin:2px}.is-loading{opacity:.48;pointer-events:none;transition:opacity .15s}
@media(max-width:1399px){.student-filters{grid-template-columns:repeat(4,minmax(145px,1fr)) auto}.student-filters .filter-search{grid-column:1/-1}}
@media(max-width:767px){.student-filters{grid-template-columns:1fr 1fr;padding:14px}.student-filters .filter-search{grid-column:1/-1}.filter-actions .btn{width:100%}.filter-actions span{display:inline;margin-left:7px}.filter-actions{grid-column:1/-1}.list-summary{align-items:flex-start;flex-direction:column}.course-label{max-width:160px}}
@media(max-width:480px){.student-filters{grid-template-columns:1fr}.student-filters .filter-search,.filter-actions{grid-column:auto}}