:root{--bg:#0f1117;--bg2:#1a1d27;--bg3:#22263a;--border:#2e3248;--text:#e8eaf6;--text2:#9099b7;--accent:#4f7ef8;--accent2:#3563d4;--success:#2d6a2d;--success-text:#7dd87d;--success-bg:#1a2e1a;--warning:#7a5a00;--warning-text:#ffd166;--warning-bg:#2a2000;--danger:#7a1a1a;--danger-text:#ff8a80;--danger-bg:#2a0f0f;--purple:#4a2a7a;--purple-text:#ce93d8;--purple-bg:#1e1028;--radius:10px;--shadow:0 4px 24px rgba(0,0,0,.4)}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
input,select,button{font-family:inherit}
input,select{background:var(--bg3);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:8px 12px;font-size:13px;width:100%}
input:focus,select:focus{outline:none;border-color:var(--accent)}
input::placeholder{color:var(--text2)}
.btn{padding:7px 16px;font-size:12px;border:1px solid var(--border);border-radius:8px;background:var(--bg3);color:var(--text);cursor:pointer;transition:all .15s;white-space:nowrap}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{background:var(--accent2);color:#fff}
.btn-sm{padding:3px 10px;font-size:11px}
.btn-danger{background:var(--danger-bg);color:var(--danger-text);border-color:var(--danger)}
.btn-warning{background:var(--warning-bg);color:var(--warning-text);border-color:var(--warning)}
.btn-success{background:var(--success-bg);color:var(--success-text);border-color:var(--success)}
.btn-purple{background:var(--purple-bg);color:var(--purple-text);border-color:var(--purple)}
.btn-full{width:100%;padding:10px;font-size:14px;margin-top:4px}

/* ── LOGIN ── */
#login-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:radial-gradient(ellipse at 60% 40%,#1a2340 0%,var(--bg) 70%);gap:1.5rem}
.login-welcome{text-align:center;animation:fadeDown .8s ease both}
.login-welcome h2{font-size:clamp(16px,3vw,26px);font-weight:800;letter-spacing:1px;background:linear-gradient(135deg,#fff 0%,var(--accent) 50%,#a5c4ff 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.3}
.login-welcome p{font-size:12px;color:var(--text2);margin-top:6px;letter-spacing:2px;text-transform:uppercase}
.login-divider{width:60px;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);margin:10px auto 0}
@keyframes fadeDown{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}
.login-card{background:var(--bg2);border:1px solid var(--border);border-radius:16px;padding:2rem;width:320px;box-shadow:var(--shadow)}
.form-group{margin-bottom:12px}
.form-group label{display:block;font-size:12px;color:var(--text2);margin-bottom:5px;font-weight:500}
.login-error{font-size:12px;color:var(--danger-text);background:var(--danger-bg);border:1px solid var(--danger);border-radius:8px;padding:7px 10px;margin-bottom:10px;display:none}

/* ── LAYOUT ── */
#main-app{display:none;height:100vh;overflow:hidden;background:var(--bg)}
.sidebar{width:225px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;z-index:200;transition:transform .25s}
.sidebar-header{padding:1rem;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}
.sidebar-header h1{font-size:14px;font-weight:700}
.sidebar-header p{font-size:11px;color:var(--text2)}
.nav{padding:.5rem 0;flex:1;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 1rem;font-size:13px;color:var(--text2);cursor:pointer;border-left:2px solid transparent;transition:all .15s}
.nav-item:hover{background:var(--bg3);color:var(--text)}
.nav-item.active{color:var(--accent);background:rgba(79,126,248,.1);border-left-color:var(--accent);font-weight:500}
.nav-item.locked{opacity:.3;cursor:not-allowed;pointer-events:none}
.nav-icon{font-size:15px;width:20px;text-align:center}
.role-badge{margin:.5rem 1rem;padding:5px 10px;border-radius:8px;font-size:11px;font-weight:600;text-align:center}
.role-admin{background:rgba(79,126,248,.15);color:var(--accent)}
.role-secretary{background:var(--warning-bg);color:var(--warning-text)}
.sidebar-footer{padding:.75rem 1rem;border-top:1px solid var(--border)}
.logout-btn{width:100%;padding:8px;font-size:12px;border:1px solid var(--border);border-radius:8px;background:transparent;color:var(--text2);cursor:pointer;text-align:center}
.logout-btn:hover{color:var(--danger-text)}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:190}
.main{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}
.topbar{background:var(--bg2);border-bottom:1px solid var(--border);padding:.75rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:10px}
.topbar h2{font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex-shrink:0}
.topbar-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.hamburger{display:none;background:none;border:none;color:var(--text);font-size:22px;cursor:pointer}
.avatar{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--accent);background:rgba(79,126,248,.15)}
.content{flex:1;overflow-y:auto;padding:1.25rem}

/* ── COMPONENTES ── */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:1.25rem}
.stat-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1rem}
.stat-label{font-size:11px;color:var(--text2);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.stat-value{font-size:22px;font-weight:700}
.stat-sub{font-size:11px;color:var(--text2);margin-top:3px}
.section{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1rem 1.25rem;margin-bottom:1rem}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.75rem;flex-wrap:wrap;gap:8px}
.section-title{font-size:13px;font-weight:600}
table{width:100%;border-collapse:collapse;font-size:12px}
th{text-align:left;font-size:11px;font-weight:600;color:var(--text2);padding:7px 8px;border-bottom:1px solid var(--border);white-space:nowrap}
td{padding:8px;border-bottom:1px solid var(--border);vertical-align:middle}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--bg3)}
.action-btns{display:flex;gap:4px;flex-wrap:wrap}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:600}
.badge-success{background:var(--success-bg);color:var(--success-text)}
.badge-warning{background:var(--warning-bg);color:var(--warning-text)}
.badge-danger{background:var(--danger-bg);color:var(--danger-text)}
.badge-info{background:rgba(79,126,248,.15);color:var(--accent)}
.badge-purple{background:var(--purple-bg);color:var(--purple-text)}
.page{display:none}
.page.active{display:block}

/* ── MODALES ── */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);align-items:center;justify-content:center;z-index:1000;padding:1rem}
.modal-overlay.open{display:flex}
.modal{background:var(--bg2);border:1px solid var(--border);border-radius:14px;padding:1.5rem;width:100%;max-width:420px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow)}
.modal h3{font-size:15px;font-weight:700;margin-bottom:1rem}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:1rem}
.form-error{font-size:12px;color:var(--danger-text);background:var(--danger-bg);border:1px solid var(--danger);border-radius:6px;padding:7px 10px;margin-bottom:10px;display:none}
.form-success{font-size:12px;color:var(--success-text);background:var(--success-bg);border:1px solid var(--success);border-radius:6px;padding:7px 10px;margin-bottom:10px;display:none}

/* ── PAGINACIÓN ── */
.pagination{display:flex;align-items:center;gap:6px;justify-content:flex-end;margin-top:.75rem;font-size:12px;flex-wrap:wrap}
.page-btn{padding:4px 10px;border:1px solid var(--border);border-radius:6px;cursor:pointer;background:var(--bg3);color:var(--text);font-size:12px}
.page-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.page-btn:disabled{opacity:.3;cursor:not-allowed}
.page-info{color:var(--text2)}

/* ── FILTROS ── */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:.75rem;align-items:center}
.filters input,.filters select{width:auto}

/* ── GRUPOS ── */
.groups-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin-bottom:1rem}
.group-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;cursor:pointer;transition:all .15s}
.group-card:hover{border-color:var(--accent)}
.group-name{font-size:14px;font-weight:600}
.group-desc{font-size:12px;color:var(--text2);margin:4px 0 8px}
.group-meta{font-size:11px;color:var(--text2)}
.group-card-header{display:flex;justify-content:space-between;align-items:flex-start}
.group-detail{display:none}
.group-detail.active{display:block}
.back-btn{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--accent);cursor:pointer;margin-bottom:1rem;background:none;border:none;padding:0;font-family:inherit}
.back-btn:hover{text-decoration:underline}

/* ── TABS ── */
.tabs{display:flex;gap:2px;margin-bottom:1rem;border-bottom:1px solid var(--border);overflow-x:auto}
.tab{padding:8px 14px;font-size:13px;cursor:pointer;color:var(--text2);border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:500}
.tab-content{display:none}
.tab-content.active{display:block}
.student-chip{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;border:1px solid var(--border);border-radius:8px;margin-bottom:6px;font-size:13px;background:var(--bg3)}

/* ── ANALYTICS ── */
.analytics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
.analytics-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1rem}
.analytics-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem}
.analytics-group-name{font-size:14px;font-weight:600}
.progress-bar{height:6px;background:var(--bg3);border-radius:999px;overflow:hidden;margin:4px 0 8px}
.progress-fill{height:100%;border-radius:999px}
.progress-good{background:var(--success-text)}
.progress-warn{background:var(--warning-text)}
.progress-bad{background:var(--danger-text)}
.analytics-row{display:flex;justify-content:space-between;font-size:12px;color:var(--text2);margin-bottom:3px}
.analytics-row span:last-child{color:var(--text);font-weight:500}

/* ── HISTORIAL FINANCIERO ── */
.history-header{background:rgba(79,126,248,.08);border:1px solid rgba(79,126,248,.2);border-radius:var(--radius);padding:1rem;margin-bottom:1rem;display:flex;align-items:flex-start;justify-content:space-between;flex-wrap:wrap;gap:8px}
.history-name{font-size:16px;font-weight:700;color:var(--accent)}
.history-meta{font-size:12px;color:var(--text2);margin-top:2px}
.history-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:1rem}
.history-stat{background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:.75rem;text-align:center}
.history-stat-val{font-size:18px;font-weight:700}
.history-stat-lbl{font-size:11px;color:var(--text2);margin-top:2px}

/* ── SETTINGS ── */
.settings-section{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1rem}
.settings-section h3{font-size:14px;font-weight:600;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid var(--border)}
.empty-state{text-align:center;padding:2.5rem;color:var(--text2);font-size:13px}

/* ── ALERTAS BANNER (legacy) ── */
.alert-danger-banner{background:var(--danger-bg);border:1px solid var(--danger);border-radius:var(--radius);padding:1rem 1.25rem;margin-bottom:1rem;display:none}
.alert-danger-banner-title{font-size:13px;font-weight:700;color:var(--danger-text);margin-bottom:6px}
.alert-danger-banner-list{font-size:12px;color:var(--danger-text);display:flex;flex-wrap:wrap;gap:6px}
.alert-danger-banner-list span{background:rgba(122,26,26,.5);border:1px solid var(--danger);border-radius:999px;padding:2px 10px}
.student-search-results div:hover{background:var(--bg2)!important}

/* ── BÚSQUEDA GLOBAL ── */
.global-search-wrap{position:relative;flex:1;max-width:340px;min-width:0}
.global-search-input{width:100%;background:var(--bg3);border:1px solid var(--border);color:var(--text);border-radius:20px;padding:6px 14px 6px 34px;font-size:13px;transition:border-color .2s,box-shadow .2s}
.global-search-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,126,248,.15)}
.global-search-icon{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--text2);font-size:14px;pointer-events:none;line-height:1}
.global-search-clear{position:absolute;right:10px;top:50%;transform:translateY(-50%);color:var(--text2);font-size:16px;cursor:pointer;display:none;line-height:1;background:none;border:none;padding:0}
.global-search-clear:hover{color:var(--text)}
.global-search-dropdown{position:absolute;top:calc(100% + 6px);left:0;right:0;background:var(--bg2);border:1px solid var(--border);border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.5);z-index:2000;overflow:hidden;display:none;max-height:420px;overflow-y:auto}
.global-search-dropdown.open{display:block}
.gs-header{padding:8px 14px;font-size:11px;font-weight:600;color:var(--text2);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border);background:var(--bg3)}
.gs-item{display:flex;align-items:center;gap:10px;padding:10px 14px;cursor:pointer;border-bottom:1px solid var(--border);transition:background .12s}
.gs-item:last-child{border-bottom:none}
.gs-item:hover{background:var(--bg3)}
.gs-avatar{width:34px;height:34px;border-radius:50%;background:rgba(79,126,248,.15);border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--accent);flex-shrink:0;overflow:hidden}
.gs-avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.gs-info{flex:1;min-width:0}
.gs-name{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gs-meta{font-size:11px;color:var(--text2);margin-top:2px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.gs-balance{font-size:11px;font-weight:600;padding:2px 7px;border-radius:999px}
.gs-balance-pending{background:var(--danger-bg);color:var(--danger-text)}
.gs-balance-ok{background:var(--success-bg);color:var(--success-text)}
.gs-empty{padding:20px;text-align:center;color:var(--text2);font-size:13px}
.gs-loading{padding:14px;text-align:center;color:var(--text2);font-size:12px}

/* ── PERFIL DE ESTUDIANTE ── */
#profile-view{display:none}
#profile-view.active{display:block}
.profile-hero{background:linear-gradient(135deg,rgba(79,126,248,.12) 0%,rgba(79,126,248,.04) 100%);border:1px solid rgba(79,126,248,.25);border-radius:14px;padding:1.5rem;margin-bottom:1.25rem;display:flex;align-items:flex-start;gap:1.5rem;flex-wrap:wrap}
.profile-photo-wrap{position:relative;flex-shrink:0}
.profile-photo{width:100px;height:100px;border-radius:50%;object-fit:cover;border:3px solid var(--accent);background:var(--bg3);display:block}
.profile-photo-placeholder{width:100px;height:100px;border-radius:50%;background:rgba(79,126,248,.15);border:3px solid var(--accent);display:flex;align-items:center;justify-content:center;font-size:36px;color:var(--accent);font-weight:700;flex-shrink:0}
.profile-photo-btn{position:absolute;bottom:2px;right:2px;width:26px;height:26px;border-radius:50%;background:var(--accent);border:2px solid var(--bg);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s}
.profile-photo-btn:hover{background:var(--accent2)}
.profile-info{flex:1;min-width:200px}
.profile-name{font-size:22px;font-weight:800;color:var(--text);margin-bottom:4px}
.profile-badges{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.profile-meta-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:6px}
.profile-meta-item{font-size:12px;color:var(--text2);display:flex;align-items:center;gap:6px}
.profile-meta-item span{color:var(--text)}
.profile-stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:1.25rem}
.profile-stat-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;text-align:center}
.profile-stat-val{font-size:20px;font-weight:800}
.profile-stat-lbl{font-size:11px;color:var(--text2);margin-top:3px}
.att-pct-ring{position:relative;display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;margin:0 auto 6px}
.att-pct-ring svg{position:absolute;top:0;left:0;transform:rotate(-90deg)}
.att-pct-ring-val{font-size:13px;font-weight:800;position:relative;z-index:1}
.photo-upload-zone{border:2px dashed var(--border);border-radius:10px;padding:1.5rem;text-align:center;cursor:pointer;transition:all .2s;margin-bottom:8px}
.photo-upload-zone:hover{border-color:var(--accent);background:rgba(79,126,248,.05)}
.photo-upload-zone input[type=file]{display:none}
.photo-preview{width:80px;height:80px;border-radius:50%;object-fit:cover;border:2px solid var(--accent);margin:0 auto 8px;display:none}

/* ── ALERTS DASHBOARD ── */
#alerts-dashboard{margin:0 0 1.5rem 0}
.alerts-loading{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text2);padding:12px 0}
.spin{display:inline-block;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.alerts-clean{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--success-text);background:var(--success-bg);border:1px solid var(--success);border-radius:8px;padding:10px 14px;margin-bottom:1rem}
.alerts-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.alerts-title{font-size:15px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:6px}
.alerts-date{font-size:12px;color:var(--text2);text-transform:capitalize}
.alerts-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.alert-card{border-radius:10px;border:1.5px solid;padding:14px;background:var(--bg2)}
.alert-card--danger{border-color:var(--danger);background:var(--danger-bg)}
.alert-card--warning{border-color:var(--warning);background:var(--warning-bg)}
.alert-card-header{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px}
.alert-card-icon{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0}
.alert-card--danger .alert-card-icon{background:rgba(122,26,26,.4);color:var(--danger-text)}
.alert-card--warning .alert-card-icon{background:rgba(122,90,0,.4);color:var(--warning-text)}
.alert-card-title{font-size:13px;font-weight:600;color:var(--text);line-height:1.3}
.alert-card-count{font-size:12px;color:var(--text2);margin-top:2px}
.alert-list{display:flex;flex-direction:column;gap:2px;max-height:240px;overflow-y:auto}
.alert-empty{font-size:12px;color:var(--text2);padding:8px 0;text-align:center}
.alert-item{display:flex;justify-content:space-between;align-items:center;padding:7px 8px;border-radius:6px;gap:8px;transition:background .15s}
.alert-item:hover{background:rgba(255,255,255,.05)}
.alert-item-info{display:flex;flex-direction:column;min-width:0}
.alert-item-name{font-size:13px;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.alert-item-sub{font-size:11px;color:var(--text2);margin-top:1px}
.alert-item-right{display:flex;align-items:center;gap:6px;flex-shrink:0}
.alert-item-amount{font-size:13px;font-weight:600;color:var(--danger-text)}
.alert-item-badge{font-size:11px;font-weight:600;background:rgba(122,90,0,.4);color:var(--warning-text);border-radius:20px;padding:2px 8px;white-space:nowrap}
.alert-wa-btn{background:none;border:none;cursor:pointer;color:var(--success-text);font-size:16px;padding:3px;border-radius:4px;display:flex;align-items:center;transition:background .15s}
.alert-wa-btn:hover{background:var(--success-bg)}
.alert-action-btn{margin-top:10px;width:100%;padding:7px;border:1px solid var(--border);border-radius:7px;background:var(--bg3);font-size:12px;font-weight:500;color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;transition:background .15s}
.alert-action-btn:hover{background:var(--bg2)}

/* ── RESPONSIVE ── */
@media(max-width:768px){
  .hamburger{display:block}
  .sidebar{position:fixed;top:0;left:0;height:100vh;transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay.open{display:block}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .history-stats{grid-template-columns:repeat(2,1fr)}
  .analytics-grid,.groups-grid{grid-template-columns:1fr}
  .filters{flex-direction:column;align-items:stretch}
  .filters input,.filters select,.filters .btn{width:100%}
  .section-header{flex-direction:column;align-items:stretch}
  table{font-size:11px}
  td,th{padding:5px}
  .content{padding:1rem}
  .profile-hero{flex-direction:column;align-items:center;text-align:center}
  .profile-stats-row{grid-template-columns:repeat(2,1fr)}
  .profile-meta-grid{grid-template-columns:1fr}
  .global-search-wrap{max-width:180px}
  .alerts-grid{grid-template-columns:1fr}
}