/* E-Learning SMKN 1 Kutalimbaru — Academic SaaS Theme */
:root{
  --navy:#0f2c52; --navy-2:#12355f; --blue:#1e88e5; --blue-soft:#e3f2fd;
  --ink:#1f2937; --muted:#6b7280; --bg:#f4f7fb; --card:#ffffff; --line:#e5e9f0;
  --ok:#16a34a; --warn:#d97706; --err:#dc2626; --info:#0ea5e9;
  --radius:16px; --shadow:0 4px 20px rgba(15,44,82,.08);
}
[data-bs-theme="dark"]{
  --navy:#0b1b30; --bg:#0f172a; --card:#16233b; --ink:#e6edf7; --muted:#93a1b5;
  --line:#26385a; --blue-soft:#132845; --shadow:0 4px 20px rgba(0,0,0,.4);
}
*{box-sizing:border-box}
body{font-family:'Segoe UI',system-ui,-apple-system,Roboto,sans-serif;background:var(--bg);color:var(--ink);margin:0}
a{text-decoration:none}
.app-shell{display:flex;min-height:100vh}

/* SIDEBAR */
.sidebar{width:270px;background:linear-gradient(180deg,var(--navy),var(--navy-2));color:#dbe6f5;
  display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;z-index:1040;
  transition:transform .32s cubic-bezier(.22,.61,.36,1), box-shadow .32s}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:20px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-brand i{font-size:26px;color:var(--blue)}
.sidebar-brand .brand-logo{width:36px;height:36px;object-fit:contain;background:#fff;border-radius:9px;padding:3px;flex:none}
.brand-app{font-weight:700;font-size:14px;letter-spacing:.3px;color:#fff}
.brand-sub{font-size:12px;color:#9fb3d1}
.sidebar-nav{padding:14px 10px;overflow-y:auto;flex:1}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:12px;color:#c7d5ea;font-size:14px;margin:2px 0}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-item.active{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(30,136,229,.35)}
.nav-item i{font-size:17px;min-width:18px}
.nav-group{margin:6px 0}
.nav-group-title{display:flex;align-items:center;gap:12px;padding:11px 14px;font-weight:600;color:#fff;font-size:14px}
.nav-group-title i{font-size:17px;color:var(--blue)}
.nav-group ul{list-style:none;margin:0;padding:0 0 0 14px;border-left:2px solid rgba(255,255,255,.08)}
.nav-group li a{display:block;padding:9px 14px;border-radius:10px;color:#b9c9e2;font-size:13.5px}
.nav-group li a:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-group li a.active{color:#fff;background:rgba(30,136,229,.25)}
.nav-group.active>.nav-group-title{color:var(--blue)}
.sidebar-foot{padding:14px 20px;border-top:1px solid rgba(255,255,255,.08);color:#8ea3c0}

/* MAIN */
.app-main{flex:1;margin-left:270px;display:flex;flex-direction:column;min-height:100vh;transition:margin .32s cubic-bezier(.22,.61,.36,1)}
.topbar{display:flex;align-items:center;gap:16px;background:var(--card);padding:12px 24px;
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:1030}
.topbar-title small{color:var(--muted)}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-icon{position:relative;background:transparent;border:1px solid var(--line);color:var(--ink);border-radius:12px;width:40px;height:40px;font-size:18px;display:inline-flex;align-items:center;justify-content:center}
.btn-icon:hover{background:var(--blue-soft)}
.badge-pill{position:absolute;top:-4px;right:-4px;background:var(--err);color:#fff;font-size:10px;padding:2px 6px;border-radius:20px}
.user-chip{display:flex;align-items:center;gap:10px;background:transparent;border:1px solid var(--line);border-radius:14px;padding:5px 12px 5px 5px;color:var(--ink)}
.user-chip:hover{background:var(--blue-soft)}
.avatar-circle{width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.u-name{font-size:13px;font-weight:600;line-height:1.1}
.u-role{font-size:11px;color:var(--muted)}
.content{padding:24px;flex:1}
.app-foot{padding:14px 24px;border-top:1px solid var(--line);background:var(--card)}

/* COLLAPSE (mobile) */
.sidebar-backdrop{position:fixed;inset:0;background:rgba(6,20,45,.5);opacity:0;visibility:hidden;
  transition:opacity .32s ease, visibility .32s ease;z-index:1035}
.sidebar-backdrop.show{opacity:1;visibility:visible}
@media (max-width:991px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.show{transform:translateX(0);box-shadow:0 0 40px rgba(0,0,0,.35)}
  .app-main{margin-left:0}
}
@media (min-width:992px){
  .sidebar-backdrop{display:none}
  body.sidebar-collapsed .sidebar{transform:translateX(-100%)}
  body.sidebar-collapsed .app-main{margin-left:0}
}

/* CARDS */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-header{background:transparent;border-bottom:1px solid var(--line);font-weight:600}
.stat-card{display:flex;align-items:center;gap:16px;padding:20px}
.stat-ico{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;background:var(--blue-soft);color:var(--blue)}
.stat-val{font-size:24px;font-weight:700;line-height:1}
.stat-lbl{font-size:13px;color:var(--muted)}
.section-title{font-size:16px;font-weight:700;margin-bottom:14px}

/* TABLES */
.table-card{overflow:hidden}
.table>thead th{background:var(--blue-soft);color:var(--navy);font-size:12.5px;text-transform:uppercase;letter-spacing:.3px;border:none}
[data-bs-theme="dark"] .table>thead th{color:var(--blue)}
.table>tbody td{font-size:14px;vertical-align:middle;border-color:var(--line)}
.table-hover>tbody>tr:hover{background:var(--blue-soft)}
table.dataTable{width:100%!important}
/* Kolom nomor otomatis */
.table .col-no{width:46px;text-align:center;color:var(--muted);font-weight:600}
.table>thead .col-no{color:var(--navy)}
[data-bs-theme="dark"] .table>thead .col-no{color:var(--blue)}

/* FORM */
.form-label{font-weight:600;font-size:13px;margin-bottom:5px}
.form-control,.form-select{border-radius:10px;border:1px solid var(--line);padding:9px 12px;background:var(--card);color:var(--ink)}
.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 .2rem rgba(30,136,229,.15)}
.btn{border-radius:10px;font-weight:600}
.btn-primary{background:var(--blue);border-color:var(--blue)}
.btn-primary:hover{background:#1565c0;border-color:#1565c0}
.badge-hadir{background:#dcfce7;color:#166534}
.badge-sakit{background:#dbeafe;color:#1e40af}
.badge-izin{background:#fef9c3;color:#854d0e}
.badge-alfa{background:#fee2e2;color:#991b1b}
.badge-terlambat{background:#ffedd5;color:#9a3412}
.badge-belum{background:#e5e7eb;color:#374151}

/* EMPTY & SKELETON */
.empty-state{text-align:center;padding:50px 20px;color:var(--muted)}
.empty-state i{font-size:48px;color:var(--line);display:block;margin-bottom:10px}
.skeleton{background:linear-gradient(90deg,var(--line) 25%,#eef2f7 50%,var(--line) 75%);background-size:200% 100%;animation:sk 1.2s infinite;border-radius:8px;height:14px;margin:6px 0}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* AUTH (login / reset) — panggung penuh layar */
.auth-body{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;position:relative;overflow:hidden;
  background:radial-gradient(1200px 600px at 12% 8%, #16386a 0%, transparent 55%),
             radial-gradient(1000px 700px at 92% 92%, #0a3d62 0%, transparent 55%),
             linear-gradient(135deg,var(--navy),#0a1f3a)}
.auth-blob{position:absolute;border-radius:50%;filter:blur(10px);opacity:.5;pointer-events:none;z-index:0}
.auth-blob.b1{width:340px;height:340px;background:radial-gradient(circle,#1e88e5,transparent 70%);top:-90px;left:-60px}
.auth-blob.b2{width:380px;height:380px;background:radial-gradient(circle,#0ea5e9,transparent 70%);bottom:-130px;right:-90px}
.auth-card{position:relative;z-index:1;width:100%;max-width:960px;display:grid;grid-template-columns:1.05fr 1fr;
  background:var(--card);border:1px solid var(--line);border-radius:24px;box-shadow:0 30px 80px rgba(6,20,45,.45);overflow:hidden}
.auth-brand{background:linear-gradient(160deg,var(--navy),#0a3d62);color:#dbe6f5;padding:40px;display:flex;flex-direction:column;justify-content:space-between;gap:28px}
.auth-brand-top{display:flex;align-items:center;gap:12px}
.auth-brand-top .auth-logo{margin:0}
.auth-brand-name{font-weight:700;color:#fff;letter-spacing:.3px}
.auth-brand-mid h2{font-size:30px;font-weight:800;color:#fff;line-height:1.15;margin-bottom:10px}
.auth-brand-mid p{color:#a9c1df;font-size:15px;max-width:34ch}
.auth-features{list-style:none;padding:0;margin:18px 0 0}
.auth-features li{padding:7px 0;display:flex;gap:10px;align-items:center;font-size:14.5px;color:#cfe0f5}
.auth-features li i{color:#4ea8ff}
.auth-brand-foot{font-size:12.5px;color:#8ea3c0}
.auth-form-pane{padding:44px;display:flex;flex-direction:column;justify-content:center}
.auth-form-pane h3{font-weight:800;font-size:24px;margin-bottom:4px}
.auth-logo{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--blue),#0ea5e9);color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;box-shadow:0 10px 24px rgba(30,136,229,.4)}
.auth-logo img{width:100%;height:100%;object-fit:contain;background:#fff;border-radius:inherit;padding:7px}
.auth-mobile-brand{display:none;align-items:center;gap:12px;margin-bottom:20px}
.auth-mobile-brand .auth-logo{width:46px;height:46px;font-size:22px}
.btn-auth{background:linear-gradient(135deg,var(--blue),#1565c0);border:none;color:#fff;font-weight:700;border-radius:12px;padding:12px;width:100%;box-shadow:0 10px 24px rgba(30,136,229,.35);transition:transform .12s,box-shadow .12s}
.btn-auth:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(30,136,229,.45);color:#fff}
.auth-hint{font-size:12.5px;color:var(--muted)}
.form-icon{background:var(--blue-soft);border:1px solid var(--line);color:var(--blue)}
.auth-card--single{grid-template-columns:1fr;max-width:460px}
@media (max-width:860px){
  .auth-card{grid-template-columns:1fr;max-width:460px}
  .auth-brand{display:none}
  .auth-mobile-brand{display:flex}
  .auth-form-pane{padding:30px 24px}
}

/* RESPONSIVE TUNING (smartphone / tablet) */
@media (max-width:991.98px){
  .content{padding:16px}
  .topbar{padding:10px 14px; gap:10px}
  .app-foot{padding:12px 14px}
}
@media (max-width:767.98px){
  .content{padding:12px}
  .topbar-title h1{font-size:1.05rem}
  .topbar-title small{display:none}
  .auth-panel{padding:28px 18px}
  .auth-box{max-width:100%}
  .stat-card{padding:14px; gap:12px}
  .stat-ico{width:46px;height:46px;font-size:20px}
  .stat-val{font-size:20px}
  .section-title{font-size:15px}
  /* Tabel lebar bisa digeser horizontal (meniru perilaku .table-responsive Bootstrap) */
  .content table.table{display:block; width:100%; overflow-x:auto; -webkit-overflow-scrolling:touch}
  /* Kontrol DataTables ditumpuk penuh agar tidak sempit berdampingan */
  .dataTables_wrapper .dataTables_length,
  .dataTables_wrapper .dataTables_filter,
  .dataTables_wrapper .dataTables_info,
  .dataTables_wrapper .dataTables_paginate{float:none; width:100%; text-align:left; margin:6px 0}
  .dataTables_wrapper .dataTables_filter input{width:100%; margin-left:0}
  .dataTables_wrapper .dataTables_paginate .paginate_button{padding:5px 10px; margin:1px}
}
@media (max-width:479.98px){
  .u-name,.u-role{display:none}
  .user-chip{padding:5px}
  .btn-icon{width:36px;height:36px;font-size:16px}
}

/* PRINT */
@media print{
  .sidebar,.topbar,.app-foot,.btn,.no-print{display:none!important}
  .app-main{margin-left:0}.content{padding:0}
  body{background:#fff}
}
.toast-host{position:fixed;top:20px;right:20px;z-index:2000}
.chip{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600}
.abs-cell input{width:20px;height:20px}
.progress{height:8px;border-radius:6px}

/* AVATAR BESAR */
.avatar-circle.lg{width:64px;height:64px;font-size:26px}

/* LAPORAN */
.report-link{transition:transform .12s,box-shadow .12s}
.report-link:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(15,44,82,.14)}
.report-icon{width:52px;height:52px;border-radius:14px;background:var(--blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:24px;flex:0 0 auto}

/* UJIAN (halaman khusus mengerjakan) */
.exam-body{background:var(--bg);color:var(--ink);margin:0}
.exam-wrap{max-width:900px;margin:0 auto;padding:18px}
.exam-header{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin-bottom:16px;box-shadow:var(--shadow)}
.exam-title{font-weight:700;font-size:18px}
.exam-timer{font-size:22px;font-weight:800;color:var(--navy);background:var(--blue-soft);border-radius:12px;padding:6px 16px;white-space:nowrap}
.exam-timer.danger{color:#fff;background:var(--err);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.6}}
.exam-body-scroll{padding-bottom:80px}
.exam-footer{position:fixed;left:0;right:0;bottom:0;background:var(--card);border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 24px;z-index:30}

/* PRINT laporan */
@media print{
  .exam-footer,.exam-timer{position:static}
  .report-head{display:block!important}
}