*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#0d5a3d;--primary-dark:#0a452e;--primary-light:#e8f5ed;--primary-glow:rgba(13,90,61,.15);
  --accent:#10b981;--accent-dark:#059669;--accent-bg:#ecfdf5;
  --warn:#f59e0b;--warn-bg:#fffbeb;
  --danger:#ef4444;--danger-bg:#fef2f2;
  --bg:#ffffff;--surface:#ffffff;--surface-hover:#f8f9fc;
  --sidebar-w:280px;--header-h:64px;
  --text:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;
  --border:#d9e0ea;--border-light:#e7ecf3;
  --radius:14px;--radius-sm:9px;--radius-xs:6px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.04),0 1px 2px rgba(0,0,0,.02);
  --shadow:0 3px 12px rgba(0,0,0,.05),0 1px 3px rgba(0,0,0,.03);
  --shadow-md:0 6px 24px rgba(0,0,0,.06),0 2px 6px rgba(0,0,0,.03);
  --shadow-lg:0 16px 48px rgba(0,0,0,.07),0 4px 12px rgba(0,0,0,.04);
  --transition:all .2s cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}

/* ═══ BACKGROUND DECOR ═══ */
body::before{content:'';position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 20% 0%,rgba(79,110,247,.03) 0%,transparent 50%),radial-gradient(ellipse at 80% 100%,rgba(16,185,129,.03) 0%,transparent 50%);pointer-events:none;z-index:0}
.content{position:relative;z-index:1}

/* ═══ WATERMARK ═══ */
.app-watermark{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;z-index:500}
.app-watermark img{user-select:none;pointer-events:none;object-fit:contain}
.app-watermark-content{inset:auto;left:var(--sidebar-w);top:var(--header-h);right:0;bottom:0}
@media(max-width:768px){.app-watermark-content{left:0}}

/* ═══ SIDEBAR ═══ */
.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;background:linear-gradient(180deg,#ffffff 0%,#fbfdfc 55%,#f3f9f6 100%);color:var(--text);z-index:1000;display:flex;flex-direction:column;transition:transform .3s cubic-bezier(.4,0,.2,1);border-right:1px solid var(--border);box-shadow:4px 0 32px rgba(0,0,0,.04),1px 0 0 rgba(0,0,0,.03)}
.sidebar::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),#4f6ef7,var(--accent));z-index:2;border-radius:0}
.sidebar-header{position:relative;padding:22px 16px 18px;text-align:center;border-bottom:1px solid var(--border);flex-shrink:0;background:rgba(255,255,255,.7);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.sidebar-header::after{content:'';position:absolute;left:20px;right:20px;bottom:-1px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),#4f6ef7,var(--accent));opacity:.9}
.sidebar-header .logo-img{width:74px;height:74px;border-radius:16px;object-fit:contain;margin-bottom:10px;box-shadow:0 4px 20px rgba(13,90,61,.2)}
.sidebar-header h2{font-size:1rem;font-weight:800;color:var(--primary);letter-spacing:-.02em}
.sidebar-header .school-name{font-size:.68rem;color:var(--text-muted);margin-top:3px;letter-spacing:.5px;font-weight:500;text-transform:uppercase}
.sidebar-nav{flex:1;padding:8px 10px 10px;overflow:hidden;display:flex;flex-direction:column;gap:2px}
.nav-section{margin-bottom:8px;flex-shrink:0;padding-bottom:4px;border-bottom:1px solid rgba(0,0,0,.04)}
.nav-section:last-child{margin-bottom:0;border-bottom:none}
.nav-section-label{padding:6px 12px 3px;font-size:.62rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;display:flex;align-items:center;gap:8px}
.nav-section-label::before{content:'';width:10px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--accent));flex-shrink:0}
.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:9px 12px;color:var(--text-secondary);text-decoration:none;font-size:.82rem;font-weight:500;border-radius:8px;transition:all .25s cubic-bezier(.4,0,.2,1);margin-bottom:1px;position:relative;letter-spacing:.02em}
.sidebar-nav a::before{content:'';position:absolute;left:0;top:20%;bottom:20%;width:3px;border-radius:0 4px 4px 0;background:linear-gradient(180deg,var(--primary),#4f6ef7);opacity:0;transform:scaleY(0);transition:transform .25s ease}
.sidebar-nav a:hover{background:linear-gradient(135deg,#d2e8db,#c8e6d0);color:var(--primary-dark);text-decoration:none;box-shadow:0 1px 4px rgba(13,90,61,.06)}
.sidebar-nav a:hover::before{opacity:1;transform:scaleY(1)}
.sidebar-nav a.active{background:linear-gradient(135deg,var(--primary-light),#dcfce7);color:var(--primary);font-weight:700;box-shadow:0 2px 8px rgba(13,90,61,.12);border:1px solid rgba(13,90,61,.08)}
.sidebar-nav a.active::before{opacity:1;transform:scaleY(1)}
.sidebar-nav a .icon-chip{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--text-muted);background:#f1f5f9;transition:all .25s cubic-bezier(.4,0,.2,1);box-shadow:0 1px 3px rgba(0,0,0,.04)}
.sidebar-nav a:hover .icon-chip{transform:scale(1.08);color:var(--primary-dark);background:#c2e0cf;box-shadow:0 2px 8px rgba(13,90,61,.15)}
.sidebar-nav a.active .icon-chip{transform:scale(1.08);color:#fff;background:linear-gradient(135deg,var(--primary),#4f6ef7);box-shadow:0 2px 8px rgba(13,90,61,.25)}
.sidebar-nav a .material-symbols-rounded{font-size:19px}
.sidebar-footer{position:relative;padding:10px 14px;border-top:1px solid var(--border);background:rgba(255,255,255,.8);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);flex-shrink:0}
.sidebar-footer::before{content:'';position:absolute;left:14px;right:14px;top:-1px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),#4f6ef7,var(--accent));opacity:.55}
.sidebar-footer .user-info{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.sidebar-logout{width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:var(--transition);flex-shrink:0}
.sidebar-logout:hover{background:var(--danger-bg);color:var(--danger);text-decoration:none;transform:translateY(-1px)}
.sidebar-logout .material-symbols-rounded{font-size:18px}
.sidebar-footer .user-avatar{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--primary),#16a34a);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.78rem;color:#fff;box-shadow:0 3px 12px rgba(13,90,61,.3);position:relative}
.sidebar-footer .user-avatar::after{content:'';position:absolute;bottom:-1px;right:-1px;width:11px;height:11px;background:#10b981;border-radius:50%;border:2px solid #fff;box-shadow:0 1px 3px rgba(0,0,0,.15)}
.sidebar-footer .user-name{font-size:.74rem;font-weight:600;color:var(--text)}
.sidebar-footer .user-role{font-size:.58rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.7px;font-weight:600;margin-top:2px}

.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.25);z-index:999;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}

/* ═══ HEADER ═══ */
.main-header{position:fixed;top:0;left:var(--sidebar-w);right:0;height:var(--header-h);background:rgba(255,255,255,.75);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);border-bottom:1px solid rgba(238,240,244,.8);display:flex;align-items:center;justify-content:space-between;padding:0 32px;z-index:998}
.main-header .page-title{font-size:1.05rem;font-weight:700;color:var(--text);letter-spacing:-.01em}
.hamburger{display:none;background:none;border:none;font-size:1.4rem;cursor:pointer;color:var(--text);padding:6px;border-radius:8px;transition:var(--transition)}
.hamburger:hover{background:#f1f4fa}

/* ═══ PAGE HEADER ═══ */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border-light);flex-wrap:wrap;gap:12px}
.page-header h1{font-size:1.35rem;font-weight:800;color:var(--text);letter-spacing:-.02em;background:linear-gradient(135deg,#0f172a,#334155);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-header .page-actions{display:flex;gap:8px;flex-wrap:wrap}

/* ═══ CONTENT ═══ */
.content{margin:var(--header-h) 0 0 var(--sidebar-w);padding:16px 24px 24px;min-height:calc(100vh - var(--header-h));animation:contentSlide .5s cubic-bezier(.4,0,.2,1);max-width:100%;box-sizing:border-box;height:calc(100vh - var(--header-h));overflow:auto}
.content::-webkit-scrollbar{width:6px}
.content::-webkit-scrollbar-track{background:transparent}
.content::-webkit-scrollbar-thumb{background:rgba(13,90,61,.2);border-radius:3px}
.content::-webkit-scrollbar-thumb:hover{background:rgba(13,90,61,.4)}
@keyframes contentSlide{from{opacity:0;transform:translateY(14px) scale(.999)}to{opacity:1;transform:translateY(0) scale(1)}}

/* ═══ CARDS ═══ */
.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--border);padding:20px;margin-bottom:16px;transition:all .25s cubic-bezier(.4,0,.2,1);position:relative}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius) var(--radius) 0 0;background:linear-gradient(90deg,var(--primary),#818cf8)}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.card-header h3{font-size:1rem;font-weight:700;color:var(--text);letter-spacing:-.01em;display:flex;align-items:center;gap:8px}
.card:hover{box-shadow:var(--shadow-md);border-color:#d8dce4;transform:translateY(-2px)}
.card-body{color:var(--text-secondary);line-height:1.65;font-size:.88rem}

/* ═══ STAT CARDS ═══ */
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:28px}
.stat-card{background:var(--surface);border-radius:var(--radius);padding:24px;display:flex;align-items:center;gap:18px;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:var(--transition);position:relative;overflow:hidden}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius) var(--radius) 0 0}
.stat-card:nth-child(1)::before{background:linear-gradient(90deg,var(--primary),#818cf8)}
.stat-card:nth-child(2)::before{background:linear-gradient(90deg,var(--accent),#34d399)}
.stat-card:nth-child(3)::before{background:linear-gradient(90deg,var(--warn),#fbbf24)}
.stat-card::after{content:'';position:absolute;top:-20px;right:-20px;width:80px;height:80px;border-radius:50%;background:radial-gradient(circle,var(--primary-glow),transparent 70%);opacity:0;transition:opacity .4s ease;pointer-events:none}
.stat-card:nth-child(2)::after{background:radial-gradient(circle,rgba(16,185,129,.1),transparent 70%)}
.stat-card:nth-child(3)::after{background:radial-gradient(circle,rgba(245,158,11,.1),transparent 70%)}
.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:#e4e7ec}
.stat-card:hover::after{opacity:1}
.stat-card .stat-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.stat-card .stat-icon .material-symbols-rounded{font-size:26px}
.stat-card .stat-icon.blue{background:var(--primary-light);color:var(--primary)}
.stat-card .stat-icon.green{background:var(--accent-bg);color:var(--accent)}
.stat-card .stat-icon.orange{background:var(--warn-bg);color:var(--warn)}
.stat-card .stat-icon.red{background:var(--danger-bg);color:var(--danger)}
.stat-card .stat-info .stat-value{font-size:1.75rem;font-weight:800;line-height:1.1;color:var(--text);letter-spacing:-.03em}
.stat-card .stat-info .stat-label{font-size:.68rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.7px;font-weight:600;margin-top:3px}

/* ═══ TABLES ═══ */
.table-responsive{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm)}
table{width:100%;border-collapse:separate;border-spacing:0}
table th,table td{padding:12px 16px;text-align:left;font-size:.82rem}
table th{background:#fafbfc;font-weight:700;color:var(--text-secondary);font-size:.65rem;text-transform:uppercase;letter-spacing:.7px;border-bottom:2px solid var(--border);position:sticky;top:0}
table td{border-bottom:1px solid var(--border);color:var(--text)}
table tbody tr{transition:var(--transition)}
table tbody tr:hover{background:var(--primary-light)}
table tbody tr:last-child td{border-bottom:none}
table th:first-child{border-radius:var(--radius-sm) 0 0 0}
table th:last-child{border-radius:0 var(--radius-sm) 0 0}
table tbody tr:last-child td:first-child{border-radius:0 0 0 var(--radius-sm)}
table tbody tr:last-child td:last-child{border-radius:0 0 var(--radius-sm) 0}

/* ═══ ATTENDANCE TABLE ═══ */
.att-table{width:100%;border-collapse:separate;border-spacing:0}
.att-table th{padding:14px 16px;text-align:left;font-size:.65rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.7px;background:#fafbfc;border-bottom:2px solid var(--border);position:sticky;top:0;white-space:nowrap}
.att-table td{padding:14px 16px;font-size:.82rem;color:var(--text);border-bottom:1px solid var(--border);vertical-align:middle}
.att-table tbody tr{transition:var(--transition)}
.att-table tbody tr:hover{background:var(--primary-light)}
.att-table tbody tr:last-child td{border-bottom:none}
.att-table .student-id{font-weight:700;color:var(--text);font-size:.85rem}
.att-table .student-name{font-weight:500;color:var(--text)}
.att-table .student-course{color:var(--text-secondary);font-size:.78rem}

/* ═══ BADGES ═══ */
.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:20px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}
.badge-success{background:var(--accent-bg);color:var(--accent-dark)}
.badge-warning{background:var(--warn-bg);color:#d97706}
.badge-danger{background:var(--danger-bg);color:var(--danger)}
.badge-info{background:var(--primary-light);color:var(--primary)}
.badge-secondary{background:#f1f5f9;color:var(--text-secondary)}
.badge::before{content:'';width:6px;height:6px;border-radius:50%;background:currentColor}

/* ═══ BUTTONS ═══ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-size:.82rem;font-weight:600;border:none;cursor:pointer;transition:var(--transition);text-decoration:none;line-height:1.4;font-family:inherit;position:relative;overflow:hidden}
.btn::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.15),transparent);opacity:0;transition:opacity .2s}
.btn:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn:hover::before{opacity:1}
.btn:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-primary{background:linear-gradient(135deg,var(--primary),#16a34a);color:#fff;box-shadow:0 4px 14px rgba(13,90,61,.3)}
.btn-primary:hover{box-shadow:0 8px 24px rgba(13,90,61,.4);background:linear-gradient(135deg,var(--primary-dark),#0d5a3d);color:#fff}
.btn-success{background:linear-gradient(135deg,var(--accent),#06b6d4);color:#fff}
.btn-success:hover{color:#fff}
.btn-warning{background:linear-gradient(135deg,var(--warn),#f97316);color:#fff}
.btn-warning:hover{color:#fff}
.btn-danger{background:linear-gradient(135deg,var(--danger),#dc2626);color:#fff}
.btn-danger:hover{color:#fff}
.btn-outline{background:var(--surface);border:1.5px solid var(--border);color:var(--text-secondary)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);box-shadow:0 4px 14px rgba(13,90,61,.15)}
.btn-sm{padding:7px 14px;font-size:.75rem;border-radius:6px}
.btn-lg{padding:12px 28px;font-size:.9rem}
.btn-group{display:flex;gap:8px;flex-wrap:wrap}

/* ═══ FORMS ═══ */
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:.78rem;font-weight:600;margin-bottom:6px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.4px}
.form-control{width:100%;padding:10px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:.88rem;font-family:inherit;transition:var(--transition);background:var(--surface);color:var(--text)}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
textarea.form-control{resize:vertical;min-height:80px}
select.form-control{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-help{font-size:.8rem;color:var(--text-muted);margin-top:4px}

/* ═══ FORM SECTIONS ═══ */
.form-section{background:#fafbfc;border-radius:var(--radius-sm);padding:16px;margin-bottom:12px;border:1px solid var(--border)}
.form-section-header{display:flex;align-items:center;gap:8px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.form-section-header .material-symbols-rounded{font-size:18px;color:var(--primary)}
.form-section-header h4{font-size:.8rem;font-weight:700;color:var(--text);letter-spacing:-.01em}
.form-section .form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.form-section .form-row:last-child{margin-bottom:0}
.form-section .form-group{margin-bottom:0}
.form-section .form-group label{font-size:.68rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.4px;margin-bottom:4px}
.form-section .form-control{padding:8px 12px;font-size:.82rem}
.form-section .form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
.form-section select.form-control{padding-right:36px}
.form-section textarea.form-control{min-height:60px}

/* Scrollable form card - for edit pages that need to fit in viewport */
.form-card-scrollable{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column;height:100%;max-height:calc(100vh - var(--header-h) - 64px)}
.form-card-scrollable .card-header{flex-shrink:0;border-bottom:1px solid var(--border);padding:16px 20px;margin:0;background:#fafbfc}
.form-card-scrollable .card-header h3{font-size:1rem;font-weight:700;color:var(--text);letter-spacing:-.01em;display:flex;align-items:center;gap:8px}
.form-card-scrollable .form-body{flex:1;overflow-y:auto;padding:16px 20px 20px}
.form-card-scrollable .form-body::-webkit-scrollbar{width:5px}
.form-card-scrollable .form-body::-webkit-scrollbar-track{background:transparent}
.form-card-scrollable .form-body::-webkit-scrollbar-thumb{background:rgba(13,90,61,.15);border-radius:3px}
.form-card-scrollable .form-body::-webkit-scrollbar-thumb:hover{background:rgba(13,90,61,.3)}
.form-card-scrollable .form-actions{flex-shrink:0;padding:16px 20px;border-top:1px solid var(--border);background:#fafbfc;display:flex;gap:10px;justify-content:flex-end}

/* Photo upload */
.photo-upload{display:flex;align-items:flex-start;gap:16px}
.photo-preview{flex-shrink:0;width:88px;height:88px;border-radius:10px;overflow:hidden;border:2px solid var(--border);background:#fafbfc;display:flex;align-items:center;justify-content:center}
.photo-preview img{width:100%;height:100%;object-fit:cover}
.photo-preview .placeholder{font-size:1.75rem;font-weight:700;color:var(--primary)}
.photo-input{flex:1}
.photo-input .form-control{padding:12px}
.photo-input .form-help{margin-top:6px}

/* Form actions */
.form-actions{display:flex;gap:10px;justify-content:flex-end;padding-top:12px;border-top:1px solid var(--border);margin-top:8px}

/* Required field indicator */
.form-group label .required{color:var(--danger);margin-left:2px}

/* Alert in form */
.form-alert{margin-bottom:16px}

/* File input styling */
.form-control[type="file"]{padding:8px 12px;background:#fafbfc}
.form-control[type="file"]:focus{outline:none;box-shadow:none}

/* Grid adjustments for edit form */
@media(max-width:900px){.form-section .form-row{grid-template-columns:1fr}}

/* ═══ FULL WIDTH FORM ═══ */
.form-fullwidth{max-width:100% !important}
.form-fullwidth .form-section{padding:20px}
.form-fullwidth .form-row{gap:20px}
.form-fullwidth .photo-upload{gap:20px}
.form-fullwidth .photo-preview{width:112px;height:112px}
@media(max-width:1200px){.form-fullwidth .form-row{gap:16px}}
@media(max-width:900px){.form-fullwidth .form-row{grid-template-columns:1fr}.form-fullwidth .photo-upload{flex-direction:column;align-items:center;text-align:center}.form-fullwidth .photo-preview{width:100px;height:100px}}

/* ═══ ALERTS ═══ */
.alert{padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:16px;font-size:.85rem;display:flex;align-items:center;gap:10px;border:1px solid}
.alert-success{background:var(--accent-bg);color:var(--accent-dark);border-color:#a7f3d0}
.alert-danger{background:var(--danger-bg);color:var(--danger);border-color:#fecaca}
.alert-warning{background:var(--warn-bg);color:#92400e;border-color:#fde68a}
.alert-info{background:var(--primary-light);color:var(--primary);border-color:#bfdbfe}

/* ═══ MODAL ═══ */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:2000;align-items:center;justify-content:center;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.modal-overlay.active{display:flex}
.modal{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:92%;max-width:600px;max-height:90vh;overflow-y:auto;border:1px solid var(--border);animation:modalIn .25s ease}
@keyframes modalIn{from{opacity:0;transform:scale(.96) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-header{padding:20px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.modal-header h3{font-size:1.05rem;font-weight:700}
.modal-close{background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--text-muted);padding:4px 8px;border-radius:6px;transition:var(--transition)}
.modal-close:hover{background:#f1f4fa;color:var(--text)}
.modal-body{padding:24px}
.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px}

/* ═══ TABS ═══ */
.tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:24px}
.tab{padding:12px 24px;font-size:.85rem;font-weight:600;color:var(--text-muted);border-bottom:2px solid transparent;margin-bottom:-2px;cursor:pointer;transition:var(--transition);text-decoration:none}
.tab:hover{color:var(--text);text-decoration:none}
.tab.active{color:var(--primary);border-bottom-color:var(--primary)}

/* ═══ SEARCH BAR ═══ */
.search-bar{display:flex;gap:10px;margin-bottom:20px;align-items:stretch}
.search-bar .form-control{max-width:400px}
.search-bar .btn-outline{min-width:auto}

/* ═══ QUICK ACTIONS ═══ */
.quick-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.quick-actions .btn{padding:12px 24px;font-weight:600;box-shadow:var(--shadow-sm);border:1px solid var(--border)}
.quick-actions .btn:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:transparent}

/* ═══ LOGIN PAGE ═══ */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#ffffff;padding:20px;position:relative;overflow:hidden}
.login-page::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(ellipse at 20% 20%,rgba(79,110,247,.04) 0%,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(16,185,129,.03) 0%,transparent 50%);pointer-events:none}
.login-page::after{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),#818cf8,var(--accent),var(--warn))}
.login-card{background:var(--surface);border-radius:24px;box-shadow:0 20px 60px rgba(0,0,0,.06),0 8px 24px rgba(0,0,0,.04);padding:48px 40px;width:100%;max-width:420px;text-align:center;border:1px solid var(--border);position:relative;animation:loginIn .5s ease}
@keyframes loginIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.login-card .logo-img{width:64px;height:64px;border-radius:18px;object-fit:contain;margin-bottom:16px;box-shadow:0 8px 28px rgba(79,110,247,.2)}
.login-card h1{font-size:1.5rem;font-weight:800;margin-bottom:4px;color:var(--text);letter-spacing:-.03em;background:linear-gradient(135deg,#0f172a,#334155);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.login-card .subtitle{color:var(--text-muted);font-size:.82rem;margin-bottom:32px;letter-spacing:.01em}
.login-card .form-group{text-align:left}
.login-card .form-control{padding:12px 16px;font-size:.92rem;border-radius:10px}
.login-card .btn{width:100%;padding:13px;margin-top:4px;border-radius:10px}
.login-card .error-msg{background:var(--danger-bg);color:var(--danger);padding:12px 16px;border-radius:var(--radius-sm);font-size:.82rem;margin-bottom:20px;border:1px solid #fecaca;text-align:left}

/* ═══ SCANNER ═══ */
.scanner-container{max-width:720px;margin:0 auto}
.scan-display{text-align:center;padding:48px 24px;border-radius:var(--radius);margin-bottom:24px;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:var(--transition)}
.scan-display.idle{background:#fafbfc;border:2px dashed var(--border)}
.scan-display.success{background:var(--accent-bg);border:2px solid var(--accent)}
.scan-display.error{background:var(--danger-bg);border:2px solid var(--danger)}
.scan-display .scan-icon{font-size:3.5rem;margin-bottom:12px}
.scan-display .scan-message{font-size:1.2rem;font-weight:700}
.scan-display .scan-detail{font-size:.88rem;color:var(--text-secondary);margin-top:6px}
.scan-input-wrapper{position:relative;margin-bottom:24px}
.scan-input-wrapper .form-control{font-size:1.1rem;padding:16px 20px;text-align:center;letter-spacing:1px;border-radius:var(--radius);border:2px solid var(--border)}
.scan-input-wrapper .form-control:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-glow)}

.scan-result{text-align:center;padding:32px 24px;border-radius:var(--radius);margin-bottom:24px;border:2px solid;animation:resultIn .3s ease}
@keyframes resultIn{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}
.scan-result.success{background:var(--accent-bg);border-color:var(--accent)}
.scan-result.error{background:var(--danger-bg);border-color:var(--danger)}
.scan-result-icon{font-size:3.5rem;margin-bottom:8px}
.scan-result-message{font-size:1.3rem;font-weight:700;margin-bottom:6px}
.scan-result-student{font-size:.9rem;color:var(--text-secondary);font-weight:500}

/* ═══ LAYOUT EDITOR ═══ */
.editor-layout{display:grid;grid-template-columns:1fr 320px;gap:20px;min-height:500px}
.editor-canvas-wrapper{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--border);padding:24px;display:flex;flex-direction:column}
.editor-toolbar{display:flex;gap:10px;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--border);flex-wrap:wrap}
.editor-canvas{flex:1;background:linear-gradient(135deg,#f8f9fc,#eef0f4);border-radius:var(--radius-sm);position:relative;min-height:400px;display:flex;align-items:center;justify-content:center;overflow:auto}
.editor-canvas .id-preview-frame{position:relative;display:inline-block}
.editor-canvas .id-preview-frame #previewImage{position:absolute;top:0;left:0;width:100%;height:100%}
.editor-canvas .element-marker{position:absolute;border:2px dashed rgba(79,110,247,.7);background:rgba(79,110,247,.1);cursor:move;z-index:10;transition:background .15s;display:flex;align-items:flex-start;justify-content:flex-start;pointer-events:auto}
.editor-canvas .element-marker:hover{background:rgba(79,110,247,.25);border-color:var(--primary)}
.editor-canvas .element-marker.selected{border-color:var(--primary);background:rgba(79,110,247,.3);box-shadow:0 0 0 2px var(--primary-glow)}
.editor-canvas .element-marker .marker-label{font-size:9px;font-weight:700;color:var(--primary);background:rgba(255,255,255,.9);padding:1px 4px;border-radius:3px;white-space:nowrap;pointer-events:none;line-height:1.2}
.editor-sidebar{display:flex;flex-direction:column;gap:16px}
.element-list{list-style:none}
.element-list li{padding:10px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);margin-bottom:6px;display:flex;align-items:center;justify-content:space-between;font-size:.82rem;cursor:pointer;transition:var(--transition);font-weight:500}
.element-list li:hover{border-color:var(--primary);background:var(--primary-light)}
.element-list li.selected{border-color:var(--primary);background:var(--primary-light);box-shadow:0 0 0 2px var(--primary-glow)}
.element-list li .visibility-toggle{background:none;border:none;cursor:pointer;font-size:1rem;color:var(--text-muted);padding:2px 6px;border-radius:4px;transition:var(--transition)}
.element-list li .visibility-toggle:hover{background:#f1f4fa;color:var(--text)}

.property-panel .prop-row{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.property-panel .prop-label{font-size:.75rem;font-weight:600;color:var(--text-secondary);min-width:65px;text-transform:uppercase;letter-spacing:.3px}
.property-panel .prop-row .form-control{flex:1;padding:7px 10px;font-size:.8rem}
.property-panel .prop-row input[type="color"]{width:38px;height:32px;padding:2px;border:1.5px solid var(--border);border-radius:6px;cursor:pointer}

/* ═══ STUDENT PROFILE ═══ */
.profile-header{display:flex;gap:28px;align-items:flex-start;margin-bottom:28px}
.profile-photo{width:120px;height:140px;border-radius:var(--radius);object-fit:cover;border:2px solid var(--border);box-shadow:var(--shadow)}
.profile-info h2{font-size:1.3rem;font-weight:800;margin-bottom:4px}
.profile-info .meta{color:var(--text-secondary);font-size:.88rem}
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.info-item .info-label{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-weight:600}
.info-item .info-value{font-size:.92rem;font-weight:600;margin-top:3px;color:var(--text)}

/* ═══ TOGGLE SWITCH ═══ */
.toggle-switch{position:relative;display:inline-block;width:48px;height:26px}
.toggle-switch input{display:none}
.toggle-switch .slider{position:absolute;inset:0;background:#cbd5e1;border-radius:26px;cursor:pointer;transition:var(--transition)}
.toggle-switch .slider::before{content:'';position:absolute;width:20px;height:20px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:var(--transition);box-shadow:0 1px 3px rgba(0,0,0,.15)}
.toggle-switch input:checked+.slider{background:linear-gradient(135deg,var(--primary),#6366f1)}
.toggle-switch input:checked+.slider::before{transform:translateX(22px)}

/* ═══ SPINNER ═══ */
.spinner{display:inline-block;width:22px;height:22px;border:3px solid rgba(79,110,247,.12);border-left-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ═══ EMPTY STATE ═══ */
.empty-state{text-align:center;padding:48px 24px;color:var(--text-secondary);background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm)}
.empty-state .material-symbols-rounded{font-size:48px;margin-bottom:12px;opacity:.3}
.empty-state h3{font-size:1.05rem;font-weight:700;margin-bottom:6px;color:var(--text)}
.empty-state p{font-size:.88rem;margin-bottom:18px}

/* ═══ SMS LOG ═══ */
.sms-log-status{display:flex;align-items:center;gap:6px;font-weight:500}
.sms-log-status .dot{width:8px;height:8px;border-radius:50%}
.sms-log-status .dot.sent{background:var(--accent)}
.sms-log-status .dot.failed{background:var(--danger)}

/* ═══ ID PREVIEW ═══ */
.id-preview-frame{max-width:800px;width:100%;padding:16px;position:relative}
.id-preview-frame img{width:100%;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md)}

/* ═══ UTILITIES ═══ */
.text-muted{color:var(--text-secondary)}.text-center{text-align:center}
.text-sm{font-size:.8rem}
.mt-0{margin-top:0}.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-5{margin-top:20px}.mt-6{margin-top:24px}
.mb-0{margin-bottom:0}.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.mb-5{margin-bottom:20px}.mb-6{margin-bottom:24px}
.element-hidden{opacity:.4}.hidden-element{opacity:.2}
.form-control-lg{font-size:1.15rem;padding:15px 20px}
.flex{display:flex}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px}

/* ═══ ANIMATIONS ═══ */
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.stat-card{animation:fadeIn .4s ease both}
.stat-card:nth-child(2){animation-delay:.06s}
.stat-card:nth-child(3){animation-delay:.12s}

/* ═══ ADD GRADE MODAL ═══ */
.grade-modal-input{width:100%;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:.92rem;font-family:inherit;color:var(--text);background:var(--surface);transition:var(--transition)}
.grade-modal-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
.grade-modal-hint{font-size:.78rem;color:var(--text-muted);margin-top:8px}

/* ═══ RESPONSIVE ═══ */
@media(max-width:1200px){.grid-3{grid-template-columns:1fr 1fr}}
@media(max-width:1024px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay.active{display:block}
  .hamburger{display:flex}
  .main-header{left:0}
  .content{margin-left:0;padding:20px;border-radius:0}
  .form-row{grid-template-columns:1fr}
  .editor-layout{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .profile-header{flex-direction:column;align-items:center;text-align:center}
  .search-bar{flex-direction:column}
  .search-bar .form-control{max-width:100%}
  .table-responsive{font-size:.8rem}
  table th,table td{padding:10px 12px}
}
@media(max-width:480px){.login-card{padding:28px 20px}.card{padding:16px}.btn-group{flex-direction:column}}

/* ═══ ATTENDANCE MODULE ═══ */
.att-summary{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:22px}
.att-summary-card{background:var(--surface);border-radius:var(--radius);padding:18px 16px;display:flex;align-items:center;gap:14px;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:var(--transition)}
.att-summary-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:#e4e7ec}
.att-summary-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.att-summary-icon .material-symbols-rounded{font-size:22px}
.att-summary-val{font-size:1.4rem;font-weight:800;line-height:1.1;color:var(--text);letter-spacing:-.02em}
.att-summary-label{font-size:.65rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.6px;font-weight:600;margin-top:2px}

.att-filters{margin-bottom:0}
.att-filters .card-header{margin-bottom:0;padding-bottom:0;border-bottom:none}
.att-filter-form{display:flex;flex-direction:column;gap:16px}
.att-filter-row{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap}
.att-filter-group{display:flex;flex-direction:column;gap:5px;min-width:0}
.att-filter-group label{font-size:.7rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}
.att-filter-group .form-control{padding:8px 12px;font-size:.82rem}
.att-filter-search{flex:1;min-width:200px}
.att-filter-actions{flex-shrink:0}
.att-filter-actions .btn-group{gap:6px}

.att-date-range{display:flex;align-items:center;gap:8px}
.att-date-range .form-control{width:160px}
.att-date-sep{font-size:.78rem;color:var(--text-muted);font-weight:500}

.att-quick-dates{display:flex;gap:4px;flex-wrap:wrap}
.att-quick-btn{padding:5px 10px !important;font-size:.72rem !important;background:var(--surface) !important;border:1.5px solid var(--border) !important;color:var(--text-secondary) !important;border-radius:6px !important;cursor:pointer;transition:var(--transition)}
.att-quick-btn:hover{border-color:var(--primary) !important;color:var(--primary) !important;background:var(--primary-light) !important}

.att-search-wrap{position:relative}
.att-search-wrap .form-control{padding-left:36px}
.att-search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);font-size:18px;color:var(--text-muted);pointer-events:none}

.att-record-count{font-size:.75rem;font-weight:500;color:var(--text-muted);margin-left:8px}

.att-sortable{cursor:pointer;user-select:none;transition:var(--transition)}
.att-sortable:hover{color:var(--primary)}
.att-sort-icon{font-size:.6rem;opacity:.6}

@media(max-width:1200px){.att-summary{grid-template-columns:repeat(3,1fr)}}
@media(max-width:1024px){.att-filter-row{flex-direction:column}.att-date-range .form-control{width:100%}.att-summary{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.att-summary{grid-template-columns:1fr}.att-filter-group{min-width:100%}}

/* ═══ CHARTS ═══ */
.period-filters{display:flex;gap:4px}
.period-btn{padding:5px 14px;border-radius:8px;font-size:.75rem;font-weight:600;border:1.5px solid var(--border);background:var(--surface);color:var(--text-secondary);cursor:pointer;transition:var(--transition);font-family:inherit}
.period-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.period-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.charts-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.chart-card{background:var(--surface);border-radius:var(--radius);padding:12px;border:1px solid var(--border);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;min-width:0}
.chart-card h4{font-size:.7rem;font-weight:700;color:var(--text);margin-bottom:8px;letter-spacing:-.01em;text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chart-card canvas{flex:1;min-height:180px;max-height:180px;width:100%}
@media(max-width:1400px){.charts-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.charts-grid{grid-template-columns:1fr}}

/* ═══ ATTENDANCE MODULE - MODERN ═══ */
.att-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.att-header h1{font-size:1.35rem;font-weight:800;color:var(--text);letter-spacing:-.02em;background:linear-gradient(135deg,var(--primary),#16a34a);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.att-header .att-actions{display:flex;gap:8px;flex-wrap:wrap}

.att-stats{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:24px}
.att-stat{background:var(--surface);border-radius:var(--radius);padding:18px 16px;display:flex;align-items:center;gap:14px;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:var(--transition)}
.att-stat:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:#d8dce4}
.att-stat-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.att-stat-icon .material-symbols-rounded{font-size:22px}
.att-stat-icon.primary{background:var(--primary-light);color:var(--primary)}
.att-stat-icon.success{background:var(--accent-bg);color:var(--accent)}
.att-stat-icon.warn{background:var(--warn-bg);color:var(--warn)}
.att-stat-icon.danger{background:var(--danger-bg);color:var(--danger)}
.att-stat-icon.info{background:#f1f5f9;color:var(--text-secondary)}
.att-stat-val{font-size:1.5rem;font-weight:800;line-height:1.1;color:var(--text);letter-spacing:-.02em}
.att-stat-label{font-size:.62rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.6px;font-weight:600;margin-top:2px}

.att-filter-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);margin-bottom:24px;overflow:hidden}
.att-filter-header{padding:16px 20px;background:#fafbfc;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.att-filter-header h3{font-size:.85rem;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px}
.att-filter-header h3 .material-symbols-rounded{font-size:18px;color:var(--primary)}
.att-filter-body{padding:20px}
.att-filter-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.att-filter-group{display:flex;flex-direction:column;gap:6px}
.att-filter-group label{font-size:.65rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}
.att-filter-group .form-control{padding:10px 14px;font-size:.85rem;border:1.5px solid var(--border);border-radius:var(--radius-sm);transition:var(--transition);background:var(--surface);color:var(--text)}
.att-filter-group .form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
.att-filter-group.date-range{grid-column:span 2}
.att-filter-group.quick-select{grid-column:span 2}
.att-filter-group.search{grid-column:span 2}
.att-filter-group.status,.att-filter-group.method,.att-filter-group.grade{grid-column:span 1}
.att-filter-actions{grid-column:span 4;display:flex;gap:8px;justify-content:flex-end;padding-top:8px;border-top:1px solid var(--border);margin-top:8px}
.att-date-range{display:flex;align-items:center;gap:10px;width:100%}
.att-date-range .form-control{flex:1;min-width:0}
.att-date-sep{font-size:.78rem;color:var(--text-muted);font-weight:500;white-space:nowrap}
.att-quick-dates{display:flex;gap:6px;flex-wrap:wrap}
.att-quick-btn{padding:7px 14px;border-radius:8px;font-size:.72rem;font-weight:600;border:1.5px solid var(--border);background:var(--surface);color:var(--text-secondary);cursor:pointer;transition:var(--transition);font-family:inherit;white-space:nowrap}
.att-quick-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.att-quick-btn.active{border-color:var(--primary);color:#fff;background:var(--primary)}
.att-search-wrap{position:relative;width:100%}
.att-search-wrap .form-control{padding-left:40px;width:100%}
.att-search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:18px;color:var(--text-muted);pointer-events:none}

.att-table-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden}
.att-table-header{padding:18px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.att-table-header h3{font-size:1rem;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px}
.att-table-header h3 .material-symbols-rounded{font-size:20px;color:var(--primary)}
.att-table-count{font-size:.75rem;font-weight:500;color:var(--text-muted);background:var(--primary-light);color:var(--primary);padding:4px 10px;border-radius:20px}

.table-responsive{overflow-x:auto}
.att-table{width:100%;border-collapse:separate;border-spacing:0}
.att-table th{padding:14px 16px;text-align:left;font-size:.65rem;font-weight:700;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.7px;background:#fafbfc;border-bottom:1.5px solid var(--border);position:sticky;top:0;white-space:nowrap}
.att-table td{padding:14px 16px;font-size:.82rem;color:var(--text);border-bottom:1px solid var(--border-light);vertical-align:middle}
.att-table tbody tr{transition:var(--transition)}
.att-table tbody tr:hover{background:var(--primary-light)}
.att-table tbody tr:last-child td{border-bottom:none}
.att-table .student-id{font-weight:700;color:var(--text);font-size:.85rem}
.att-table .student-name{font-weight:500;color:var(--text)}
.att-table .student-course{color:var(--text-secondary);font-size:.78rem}

.att-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;border-radius:20px;font-size:.68rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}
.att-badge-present{background:var(--accent-bg);color:var(--accent-dark)}
.att-badge-late{background:var(--warn-bg);color:#d97706}
.att-badge-absent{background:var(--danger-bg);color:var(--danger)}
.att-badge-excused{background:#f1f5f9;color:#64748b}
.att-badge-qr{background:var(--primary-light);color:var(--primary)}
.att-badge-manual{background:var(--warn-bg);color:#d97706}
.att-badge-rfid{background:var(--accent-bg);color:var(--accent)}

.att-empty{text-align:center;padding:48px 24px;color:var(--text-secondary)}
.att-empty .material-symbols-rounded{font-size:56px;margin-bottom:16px;opacity:.3;color:var(--primary)}
.att-empty h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;color:var(--text)}
.att-empty p{font-size:.85rem;margin-bottom:20px;color:var(--text-muted)}

/* Scanner page */
.scan-page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.scan-page-header h1{font-size:1.35rem;font-weight:800;color:var(--text);letter-spacing:-.02em;background:linear-gradient(135deg,var(--primary),#16a34a);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.scan-layout{display:grid;grid-template-columns:1fr 380px;gap:24px}
@media(max-width:1024px){.scan-layout{grid-template-columns:1fr}}
.scan-main{display:flex;flex-direction:column;gap:20px}
.scan-side{display:flex;flex-direction:column;gap:20px}

.scan-status-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);padding:20px}
.scan-status-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.scan-status-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border-radius:24px;font-size:.75rem;font-weight:600;letter-spacing:.3px}
.scan-status-pill.scanning{background:var(--accent-bg);color:var(--accent-dark);border:1px solid #a7f3d0}
.scan-status-pill.scanning::before{content:'';width:8px;height:8px;border-radius:50%;background:#10b981;animation:blink 1.2s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
.scan-status-pill.idle{background:var(--primary-light);color:var(--primary);border:1px solid #bfdbfe}

.scan-phone-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--primary),#16a34a);color:#fff;font-size:.82rem;font-weight:600;border:none;cursor:pointer;transition:var(--transition);box-shadow:0 4px 14px rgba(13,90,61,.3);font-family:inherit}
.scan-phone-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(13,90,61,.4);color:#fff}
.scan-phone-btn:active{transform:translateY(0)}
.scan-phone-btn .material-symbols-rounded{font-size:18px}

.scan-camera-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden}
.scan-camera-wrap{background:#0f172a;border-radius:0;overflow:visible;position:relative;min-height:320px;display:flex;align-items:center;justify-content:center}
.scan-camera-wrap video{width:100%;border-radius:0;max-height:400px}
.scan-camera-overlay{position:absolute;bottom:0;left:0;right:0;padding:14px 20px;font-size:12px;color:rgba(255,255,255,.85);background:linear-gradient(transparent,rgba(15,23,42,.9));display:flex;align-items:center;gap:8px;z-index:5}
.scan-camera-overlay.active{color:#4ade80}
.scan-camera-overlay .material-symbols-rounded{font-size:16px}

.scan-camera-bar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;justify-content:center;padding:16px;background:#fafbfc;border-top:1px solid var(--border)}
.scan-camera-bar select{padding:8px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:.78rem;font-family:inherit;background:var(--surface);color:var(--text);cursor:pointer;appearance:none;max-width:260px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}
.scan-cam-btn{padding:8px 18px;border-radius:var(--radius-sm);border:1.5px solid var(--border);background:var(--surface);cursor:pointer;font-size:.78rem;font-family:inherit;display:inline-flex;align-items:center;gap:6px;font-weight:500;color:var(--text);transition:var(--transition)}
.scan-cam-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.scan-cam-btn.running{background:var(--primary);color:#fff;border-color:var(--primary)}
.scan-cam-btn .material-symbols-rounded{font-size:16px}

.scan-idle-state{text-align:center;padding:64px 24px;border-radius:var(--radius);background:linear-gradient(135deg,#fafbfc,#f1f4fa);border:2px dashed var(--border);margin-bottom:20px}
.scan-idle-state .material-symbols-rounded{font-size:72px;color:var(--primary);opacity:.2;margin-bottom:16px;display:block}
.scan-idle-state h3{font-size:1.15rem;font-weight:700;color:var(--text);margin-bottom:6px}
.scan-idle-state p{font-size:.85rem;color:var(--text-muted)}

.scan-input-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);padding:24px}
.scan-input-box{position:relative}
.scan-input-box .form-control{font-size:1.25rem;padding:18px 24px;text-align:center;letter-spacing:2px;border-radius:var(--radius);border:2px solid var(--border);font-weight:600;transition:var(--transition);background:var(--surface);color:var(--text)}
.scan-input-box .form-control:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-glow);outline:none}
.scan-input-box .scan-input-icon{position:absolute;left:18px;top:50%;transform:translateY(-50%);font-size:24px;color:var(--text-muted);pointer-events:none}
.scan-input-box .form-control{padding-left:56px}

.scan-recent-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden}
.scan-recent-header{padding:16px 20px;background:#fafbfc;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.scan-recent-header h3{font-size:.85rem;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px}
.scan-recent-header h3 .material-symbols-rounded{font-size:18px;color:var(--primary)}
.scan-recent-list{padding:8px;max-height:300px;overflow-y:auto}
.scan-recent-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;transition:var(--transition)}
.scan-recent-item:hover{background:var(--primary-light)}
.scan-recent-avatar{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.75rem;color:#fff}
.scan-recent-avatar.checkin{background:linear-gradient(135deg,var(--accent),#34d399)}
.scan-recent-avatar.checkout{background:linear-gradient(135deg,var(--primary),#16a34a)}
.scan-recent-info{flex:1;min-width:0}
.scan-recent-name{font-weight:600;color:var(--text);font-size:.82rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.scan-recent-id{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}
.scan-recent-time{font-size:.7rem;color:var(--text-muted);font-variant-numeric:tabular-nums}
.scan-recent-badge{font-size:.6rem;font-weight:600;padding:3px 8px;border-radius:12px;text-transform:uppercase}
.scan-recent-badge.checkin{background:var(--accent-bg);color:var(--accent-dark)}
.scan-recent-badge.checkout{background:var(--primary-light);color:var(--primary)}

/* Phone scanner modal */
.ps-modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:2500;align-items:center;justify-content:center;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.ps-modal-overlay.active{display:flex}
.ps-modal{background:var(--surface);border-radius:20px;box-shadow:0 25px 60px rgba(0,0,0,.25);width:92%;max-width:420px;overflow:hidden;animation:psIn .3s ease}
@keyframes psIn{from{opacity:0;transform:scale(.92) translateY(12px)}to{opacity:1;transform:scale(1) translateY(0)}}
.ps-modal-head{padding:24px 28px 16px;text-align:center;position:relative}
.ps-modal-close{position:absolute;top:16px;right:16px;width:32px;height:32px;border-radius:50%;border:none;background:var(--bg);cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:var(--transition)}
.ps-modal-close:hover{background:var(--danger-bg);color:var(--danger)}
.ps-modal-head .ps-icon{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--primary),#16a34a);display:inline-flex;align-items:center;justify-content:center;margin-bottom:12px;box-shadow:0 4px 12px rgba(13,90,61,.3)}
.ps-modal-head .ps-icon .material-symbols-rounded{font-size:28px;color:#fff}
.ps-modal-head h2{font-size:1.1rem;font-weight:800;color:var(--text);margin-bottom:4px}
.ps-modal-head p{font-size:.8rem;color:var(--text-muted);line-height:1.5}
.ps-modal-body{padding:0 28px 28px;display:flex;flex-direction:column;align-items:center;gap:16px}
.ps-qr-frame{background:var(--surface);border:2px solid var(--border);border-radius:var(--radius);padding:16px;display:inline-block;position:relative}
.ps-qr-frame img{width:200px;height:200px;display:block;border-radius:8px}
.ps-qr-badge{position:absolute;top:-8px;right:-8px;background:var(--accent);color:#fff;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px rgba(16,185,129,.4)}
.ps-qr-badge .material-symbols-rounded{font-size:14px}
.ps-url-box{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;display:flex;align-items:center;gap:8px}
.ps-url-text{flex:1;font-size:.72rem;color:var(--text-secondary);word-break:break-all;font-family:'SF Mono',Monaco,Consolas,monospace;line-height:1.4}
.ps-copy-btn{flex-shrink:0;width:32px;height:32px;border-radius:6px;border:1px solid var(--border);background:var(--surface);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);color:var(--text-muted)}
.ps-copy-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.ps-copy-btn .material-symbols-rounded{font-size:16px}
.ps-actions{display:flex;gap:10px;width:100%}
.ps-actions .btn{flex:1;padding:11px;font-size:.82rem}
.ps-steps{width:100%;display:flex;flex-direction:column;gap:0;margin-top:4px}
.ps-step{display:flex;align-items:flex-start;gap:10px;padding:8px 0}
.ps-step-num{width:22px;height:22px;border-radius:50%;background:var(--primary-light);color:var(--primary);font-size:.68rem;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.ps-step-text{font-size:.76rem;color:var(--text-secondary);line-height:1.45}
.ps-step-text strong{color:var(--text);font-weight:600}

/* Result toast/notification */
.att-toast{position:fixed;top:24px;right:24px;z-index:3000;display:flex;align-items:center;gap:12px;padding:16px 20px;border-radius:var(--radius);box-shadow:var(--shadow-lg);background:var(--surface);border:1px solid var(--border);animation:toastIn .3s ease;max-width:400px}
@keyframes toastIn{from{opacity:0;transform:translateX(100px)}to{opacity:1;transform:translateX(0)}}
.att-toast.success{border-left:4px solid var(--accent)}
.att-toast.error{border-left:4px solid var(--danger)}
.att-toast.warning{border-left:4px solid var(--warn)}
.att-toast .toast-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.att-toast.success .toast-icon{background:var(--accent-bg);color:var(--accent)}
.att-toast.error .toast-icon{background:var(--danger-bg);color:var(--danger)}
.att-toast.warning .toast-icon{background:var(--warn-bg);color:var(--warn)}
.att-toast .toast-icon .material-symbols-rounded{font-size:22px}
.att-toast .toast-content{flex:1}
.att-toast .toast-title{font-weight:600;color:var(--text);margin-bottom:2px}
.att-toast .toast-message{font-size:.8rem;color:var(--text-secondary)}
.att-toast .toast-close{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px;transition:var(--transition)}
.att-toast .toast-close:hover{color:var(--text)}

@media(max-width:1200px){.att-stats{grid-template-columns:repeat(3,1fr)}.att-filter-grid{grid-template-columns:repeat(2,1fr)}.att-filter-group.date-range,.att-filter-group.quick-select,.att-filter-group.search{grid-column:span 2}.att-filter-group.status,.att-filter-group.method,.att-filter-group.grade{grid-column:span 1}.att-filter-actions{grid-column:span 2}}
@media(max-width:1024px){.att-filter-grid{grid-template-columns:1fr 1fr}.scan-layout{grid-template-columns:1fr}}
@media(max-width:768px){.att-stats{grid-template-columns:1fr}.att-filter-grid{grid-template-columns:1fr}.att-filter-group.date-range,.att-filter-group.quick-select,.att-filter-group.search,.att-filter-group.status,.att-filter-group.method,.att-filter-group.grade,.att-filter-actions{grid-column:span 1}.att-header h1{font-size:1.15rem}.att-header{flex-direction:column;align-items:stretch}.att-header .att-actions{justify-content:center}}

/* ═══ CHART DETAIL MODAL ═══ */
.chart-card canvas{cursor:pointer}
.chart-modal-overlay{display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:2500;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.chart-modal-overlay.active{display:flex;animation:cmFade .2s ease}
@keyframes cmFade{from{opacity:0}to{opacity:1}}
.chart-modal{position:relative;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:520px;max-height:90vh;overflow:hidden;display:flex;flex-direction:column;border:1px solid var(--border);animation:cmIn .3s cubic-bezier(.34,1.4,.5,1)}
@keyframes cmIn{from{opacity:0;transform:translateY(26px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}
.chart-modal::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),#4f6ef7,var(--accent));z-index:1}
.chart-modal-head{display:flex;align-items:center;gap:12px;padding:18px 22px;border-bottom:1px solid var(--border);flex-shrink:0}
.chart-modal-title{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.chart-modal-title .modal-icon{width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--primary);background:var(--primary-light);box-shadow:0 2px 8px rgba(13,90,61,.12)}
.chart-modal-title h3{font-size:.98rem;font-weight:700;color:var(--text);letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chart-modal-close{width:34px;height:34px;border:none;border-radius:9px;background:transparent;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);flex-shrink:0}
.chart-modal-close:hover{background:var(--danger-bg);color:var(--danger);transform:rotate(90deg)}
.chart-modal-close .material-symbols-rounded{font-size:20px}
.chart-modal-body{padding:20px 22px;overflow-y:auto;flex:1}
.chart-modal-hero{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;border-radius:12px;background:linear-gradient(135deg,var(--primary-light),#eef6f1);border:1px solid #d5e8dd;margin-bottom:18px}
.chart-modal-hero .hero-label{font-size:.72rem;font-weight:700;color:var(--primary-dark);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.chart-modal-hero .hero-value{font-size:2rem;font-weight:800;color:var(--primary);letter-spacing:-.03em;line-height:1;font-variant-numeric:tabular-nums}
.chart-modal-hero .hero-pct{font-size:.95rem;font-weight:700;color:var(--primary-dark);background:#fff;border:1px solid #d5e8dd;border-radius:20px;padding:6px 14px;white-space:nowrap}
.chart-detail-list{display:flex;flex-direction:column;gap:6px}
.chart-detail-row{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:9px;border:1px solid transparent;transition:var(--transition)}
.chart-detail-row:hover{background:#f8fafc}
.chart-detail-row.active{background:var(--primary-light);border-color:#cde4d6}
.chart-detail-row .dot{width:10px;height:10px;border-radius:3px;flex-shrink:0}
.chart-detail-row .label{font-size:.82rem;font-weight:600;color:var(--text);flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chart-detail-row .bar{flex:1.6;height:8px;border-radius:6px;background:#eef1f5;overflow:hidden}
.chart-detail-row .bar span{display:block;height:100%;border-radius:6px;transition:width .6s cubic-bezier(.4,0,.2,1)}
.chart-detail-row .value{font-size:.82rem;font-weight:700;color:var(--text);min-width:38px;text-align:right;font-variant-numeric:tabular-nums}
.chart-detail-row .pct{font-size:.72rem;font-weight:600;color:var(--text-muted);min-width:42px;text-align:right;font-variant-numeric:tabular-nums}
.chart-modal-note{font-size:.75rem;color:var(--text-muted);margin-top:14px;padding:10px 12px;background:#f8fafc;border:1px solid var(--border);border-radius:8px;line-height:1.5}
.chart-modal-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 22px;border-top:1px solid var(--border);background:#fafbfc;flex-shrink:0}
.chart-modal-foot .period-chip{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:600;color:var(--text-secondary);background:#fff;border:1px solid var(--border);padding:6px 12px;border-radius:20px;white-space:nowrap}
.chart-modal-foot .period-chip .material-symbols-rounded{font-size:15px}
@media(max-width:480px){.chart-modal-hero .hero-value{font-size:1.6rem}.chart-modal-body{padding:16px}.chart-modal-head{padding:14px 16px}.chart-modal-foot{padding:12px 16px}}

/* ═══ GLOBAL UPPERCASE ═══ */
body{text-transform:uppercase}
button,input,select,textarea{text-transform:uppercase}
.material-symbols-rounded{text-transform:none}