*{margin:0;padding:0;box-sizing:border-box;}
:root{--primary:#c62828;--accent:#1565c0;--bg:#fff8f6;--card:#fff;--border:#f0e0de;--text:#1e1010;--muted:#7a5a58;}
body{font-family:'Noto Sans',sans-serif;background:var(--bg);color:var(--text);font-size:14px;}
h1,h2,h3,button,.badge{font-family:'Baloo 2',sans-serif;}

/* LOGIN */
#loginScreen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#c62828,#b71c1c,#1565c0);}
.login-card{background:#fff;border-radius:20px;padding:36px 28px;width:310px;box-shadow:0 20px 60px rgba(0,0,0,0.25);}
.login-logo{text-align:center;margin-bottom:20px;}
.login-logo .icon{width:60px;height:60px;background:linear-gradient(135deg,#c62828,#1565c0);border-radius:14px;display:flex;align-items:center;justify-content:center;margin:0 auto 10px;font-size:26px;color:#fff;}
.login-logo h2{font-size:17px;color:#c62828;font-weight:800;}
.login-logo p{font-size:11px;color:var(--muted);}
.form-group{margin-bottom:12px;}
.form-group label{display:block;font-size:11px;font-weight:700;color:var(--muted);margin-bottom:5px;text-transform:uppercase;letter-spacing:0.5px;}
.form-group input,.form-group select{width:100%;padding:9px 12px;border:1.5px solid var(--border);border-radius:9px;font-size:13px;font-family:'Noto Sans',sans-serif;outline:none;transition:border-color 0.2s;}
.form-group input:focus{border-color:var(--primary);}
.btn{padding:9px 16px;border-radius:9px;border:1.5px solid var(--border);font-family:'Baloo 2',sans-serif;font-size:13px;font-weight:700;cursor:pointer;transition:all 0.2s;display:inline-flex;align-items:center;gap:6px;background:#fff;color:var(--text);}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-full{width:100%;justify-content:center;}
.btn-sm{padding:5px 10px;font-size:12px;border-radius:7px;}
#loginErr{display:none;color:#dc2626;font-size:12px;text-align:center;margin-top:8px;}

/* APP */
#mainApp{display:none;min-height:100vh;flex-direction:column;}

/* TOP BAR */
.topbar{background:linear-gradient(135deg,#c62828,#b71c1c);padding:0 16px;height:56px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:50;}
.topbar h2{font-size:16px;font-weight:800;color:#fff;}
.topbar-right{display:flex;align-items:center;gap:8px;}
.ibtn{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,0.15);border:none;color:#fff;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;}
.ibtn img{width:100%;height:100%;object-fit:cover;border-radius:50%;}
.notif-dot{position:absolute;top:2px;right:2px;width:8px;height:8px;background:#fbbf24;border-radius:50%;}

/* BOTTOM NAV */
.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--border);display:flex;z-index:50;box-shadow:0 -2px 10px rgba(0,0,0,0.08);}
.bnav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:8px 2px;cursor:pointer;color:var(--muted);font-size:10px;font-weight:600;border:none;background:none;font-family:'Baloo 2',sans-serif;gap:2px;transition:color 0.2s;}
.bnav-item i{font-size:18px;}
.bnav-item.active{color:var(--primary);}

/* PAGES */
.page-content{display:none;padding:16px;padding-bottom:85px;}
.page-content.active{display:block;}

/* CARDS */
.card{background:var(--card);border-radius:14px;padding:14px;border:1px solid var(--border);margin-bottom:12px;box-shadow:0 1px 4px rgba(0,0,0,0.04);}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px;}
.stat-card{background:var(--card);border-radius:12px;padding:12px;border:1px solid var(--border);text-align:center;}
.stat-val{font-size:22px;font-weight:800;color:var(--primary);}
.stat-lbl{font-size:11px;color:var(--muted);}

/* TABLE */
.table-wrap{overflow-x:auto;border-radius:10px;border:1px solid var(--border);}
table{width:100%;border-collapse:collapse;background:#fff;}
thead th{background:#fff8f6;padding:8px 12px;text-align:left;font-size:11px;font-weight:700;color:var(--muted);text-transform:uppercase;border-bottom:1px solid var(--border);}
tbody td{padding:8px 12px;border-bottom:1px solid var(--border);font-size:13px;}
tbody tr:last-child td{border-bottom:none;}

/* BADGE */
.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:20px;font-size:11px;font-weight:700;}
.badge-green{background:#dcfce7;color:#15803d;}
.badge-red{background:#fee2e2;color:#dc2626;}
.badge-blue{background:#dbeafe;color:#1d4ed8;}
.badge-yellow{background:#fef9c3;color:#854d0e;}

/* PROFILE */
.profile-header{background:linear-gradient(135deg,#c62828,#b71c1c);padding:24px 16px 20px;text-align:center;color:#fff;margin:-16px -16px 16px;}
.profile-pic{width:76px;height:76px;border-radius:50%;background:rgba(255,255,255,0.2);margin:0 auto 10px;display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:800;overflow:hidden;border:3px solid rgba(255,255,255,0.4);}
.profile-pic img{width:100%;height:100%;object-fit:cover;border-radius:50%;}

/* FEED */
.post-card{background:#fff;border-radius:14px;border:1px solid var(--border);overflow:hidden;margin-bottom:14px;}
.post-img{width:100%;max-height:220px;object-fit:cover;}
.post-body{padding:12px;}
.like-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:20px;border:1.5px solid var(--primary);background:#fff;color:var(--primary);font-family:'Baloo 2',sans-serif;font-size:13px;font-weight:700;cursor:pointer;transition:all 0.2s;}
.like-btn.liked{background:#fee2e2;border-color:var(--primary);}

/* MESSAGES */
.mi{display:flex;align-items:flex-start;gap:8px;margin-bottom:10px;}
.mi-av{width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:10px;font-weight:700;flex-shrink:0;overflow:hidden;}
.mi-av img{width:100%;height:100%;object-fit:cover;border-radius:50%;}
.mi-msg{display:inline-block;padding:7px 12px;border-radius:12px;font-size:13px;line-height:1.4;}
.mi-msg.admin{background:#c62828;color:#fff;}
.mi-msg.teacher{background:#1565c0;color:#fff;}
.mi-msg.student{background:#f3f4f6;color:#1e1010;}

/* AI MODAL */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:200;display:none;align-items:flex-end;}
.modal-overlay.open{display:flex;}
#appLoadingOverlay{position:fixed;inset:0;background:rgba(255,255,255,0.96);z-index:500;display:none;align-items:center;justify-content:center;flex-direction:column;gap:14px}
#appLoadingOverlay.open{display:flex}
#appLoadingOverlay .spin{font-size:34px;color:var(--primary)}
#appLoadingOverlay p{font-size:13px;color:var(--muted);font-weight:700}
.modal{background:#fff;border-radius:20px 20px 0 0;width:100%;max-height:85vh;display:flex;flex-direction:column;}
.modal-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-shrink:0;}
.modal-header h3{font-size:16px;font-weight:800;color:var(--primary);}
.modal-close{background:none;border:none;font-size:22px;cursor:pointer;color:var(--muted);}
.modal-body{flex:1;overflow-y:auto;padding:16px;}
.modal-footer{padding:12px 16px;border-top:1px solid var(--border);display:flex;gap:8px;flex-shrink:0;}
.modal-footer input{flex:1;padding:9px 12px;border:1.5px solid var(--border);border-radius:9px;font-size:13px;outline:none;font-family:'Noto Sans',sans-serif;}

/* TOAST */
#toast{position:fixed;top:16px;right:16px;z-index:999;}
.toast-item{padding:10px 16px;border-radius:10px;font-size:13px;font-weight:600;margin-bottom:8px;animation:slideIn 0.3s ease;box-shadow:0 4px 16px rgba(0,0,0,0.15);}
.toast-success{background:#16a34a;color:#fff;}
.toast-error{background:#dc2626;color:#fff;}
@keyframes slideIn{from{transform:translateX(100%);opacity:0;}to{transform:translateX(0);opacity:1;}}

/* SECTION HEADER */
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.section-header h3{font-size:16px;font-weight:800;color:var(--primary);}

/* ALARM */
.alarm-card{background:linear-gradient(135deg,#1565c0,#1976d2);border-radius:14px;padding:14px;color:#fff;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between;}

/* FEES BREAKDOWN MODAL */
#feeBreakModal .modal{max-height:90vh;}

/* PHOTO LIGHTBOX */
#photoLightbox{position:fixed;inset:0;background:rgba(0,0,0,0.92);z-index:999;display:none;align-items:center;justify-content:center;animation:fadeIn 0.2s ease;}
#photoLightbox.open{display:flex;}
#photoLightbox img{max-width:92vw;max-height:92vh;border-radius:12px;object-fit:contain;animation:zoomIn 0.2s ease;}
#photoLightboxClose{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,0.15);border:none;color:#fff;font-size:22px;cursor:pointer;display:flex;align-items:center;justify-content:center;}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
@keyframes zoomIn{from{transform:scale(0.7);opacity:0;}to{transform:scale(1);opacity:1;}}