/* ============================================
   Belajar Sains — Global Stylesheet
   Dark / Light mode + Admin panel
============================================ */
*{box-sizing:border-box;margin:0;padding:0}

/* ── Color tokens ── */
:root{
  --bg:#f3f4f6;--bg2:#0b1d3a;
  --card:#ffffff;--card2:#f8fafc;
  --primary:#6366f1;--primary-2:#8b5cf6;
  --accent:#22d3ee;
  --text:#1f2937;--text2:#0b1d3a;
  --muted:#6b7280;--border:#e5e7eb;
  --success:#10b981;--danger:#ef4444;--warn:#f59e0b;
  --sidebar-bg:linear-gradient(180deg,#0b1d3a,#1e1b4b);
  --sidebar-text:#cbd5e1;--sidebar-hover:rgba(255,255,255,.08);
  --topbar-title:#0b1d3a;--chip-bg:#ffffff;
  --table-head:#f8fafc;--table-head-color:#475569;
  --table-hover:#fafbff;--table-border:#f1f5f9;
  --stat-bg:#ffffff;--stat-num:#0b1d3a;
  --input-border:#e5e7eb;--input-bg:#ffffff;--input-text:#1f2937;
}

/* ── Color schemes (light mode only; dark mode overrides below) ── */
[data-color="hijau"]{
  --bg:#f0fdf4;--primary:#16a34a;--primary-2:#15803d;--accent:#22c55e;
  --text2:#14532d;--topbar-title:#14532d;--stat-num:#14532d;
  --sidebar-bg:linear-gradient(180deg,#052e16,#166534)
}
[data-color="biru"]{
  --bg:#eff6ff;--primary:#2563eb;--primary-2:#1d4ed8;--accent:#60a5fa;
  --text2:#1e3a8a;--topbar-title:#1e3a8a;--stat-num:#1e3a8a;
  --sidebar-bg:linear-gradient(180deg,#1e3a8a,#1e40af)
}
[data-color="kuning"]{
  --bg:#fefce8;--primary:#ca8a04;--primary-2:#b45309;--accent:#fbbf24;
  --text2:#78350f;--topbar-title:#78350f;--stat-num:#78350f;
  --sidebar-bg:linear-gradient(180deg,#451a03,#78350f)
}
[data-color="coklat"]{
  --bg:#fdf8f0;--primary:#b45309;--primary-2:#92400e;--accent:#f59e0b;
  --text2:#7c2d12;--topbar-title:#7c2d12;--stat-num:#7c2d12;
  --sidebar-bg:linear-gradient(180deg,#431407,#7c2d12)
}
[data-color="abu"]{
  --bg:#f1f5f9;--primary:#475569;--primary-2:#334155;--accent:#94a3b8;
  --text2:#1e293b;--topbar-title:#334155;--stat-num:#1e293b;
  --sidebar-bg:linear-gradient(180deg,#0f172a,#1e293b)
}
[data-color="ungu"]{
  --bg:#faf5ff;--primary:#7c3aed;--primary-2:#6d28d9;--accent:#a78bfa;
  --text2:#2e1065;--topbar-title:#2e1065;--stat-num:#2e1065;
  --sidebar-bg:linear-gradient(180deg,#2e1065,#4c1d95)
}

/* Dark mode */
[data-theme="dark"]{
  --bg:#0f172a;--bg2:#1e293b;
  --card:#1e293b;--card2:#283548;
  --text:#e2e8f0;--text2:#f1f5f9;
  --muted:#94a3b8;--border:#334155;
  --sidebar-bg:linear-gradient(180deg,#0f172a,#1a0533);
  --sidebar-text:#94a3b8;--sidebar-hover:rgba(255,255,255,.06);
  --topbar-title:#e2e8f0;--chip-bg:#1e293b;
  --table-head:#283548;--table-head-color:#94a3b8;
  --table-hover:#2d3f55;--table-border:#334155;
  --stat-bg:#1e293b;--stat-num:#f1f5f9;
  --input-border:#334155;--input-bg:#283548;--input-text:#e2e8f0;
}

html,body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);min-height:100vh;transition:background .25s,color .25s}
a{text-decoration:none;color:var(--primary)}

/* ── Dark / Light toggle button ── */
.theme-toggle{
  position:fixed;bottom:24px;right:24px;z-index:9999;
  width:46px;height:46px;border-radius:50%;border:none;cursor:pointer;
  background:var(--primary);color:#fff;font-size:18px;
  box-shadow:0 4px 16px rgba(99,102,241,.4);
  display:flex;align-items:center;justify-content:center;
  transition:.2s
}
.theme-toggle:hover{transform:scale(1.1)}

/* ── Space background (landing + auth) ── */
.space-bg{
  position:relative;min-height:100vh;
  background:radial-gradient(ellipse at top,#1e1b4b 0%,#050a1a 60%);
  color:#fff;overflow:hidden;
}
[data-theme="dark"] .space-bg{background:radial-gradient(ellipse at top,#0f0920 0%,#000510 60%)}
.space-bg::before,.space-bg::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(2px 2px at 20% 30%,#fff,transparent),
    radial-gradient(1px 1px at 40% 70%,#fff,transparent),
    radial-gradient(1.5px 1.5px at 70% 40%,#fff,transparent),
    radial-gradient(1px 1px at 80% 80%,#fff,transparent),
    radial-gradient(2px 2px at 10% 90%,#fff,transparent),
    radial-gradient(1px 1px at 55% 15%,#fff,transparent),
    radial-gradient(1.5px 1.5px at 90% 20%,#fff,transparent);
  animation:twinkle 4s infinite alternate;
}
.space-bg::after{animation-delay:2s;opacity:.6}
@keyframes twinkle{from{opacity:.3}to{opacity:1}}

/* ── Landing ── */
.landing{min-height:100vh;display:flex;flex-direction:column;align-items:center;
  justify-content:center;padding:40px 20px;position:relative;z-index:2}
.landing h1{font-size:clamp(20px,3vw,32px);text-align:center;
  background:linear-gradient(90deg,#22d3ee,#8b5cf6,#f472b6);
  -webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:.5px;font-weight:700}
.landing .tagline{margin-top:12px;font-size:clamp(18px,2.8vw,28px);color:#cbd5e1;text-align:center;font-style:italic;font-weight:400}
.role-wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;margin-top:50px;max-width:900px;width:100%}
@media(max-width:640px){.role-wrap{grid-template-columns:1fr}}
.role-card{
  background:rgba(255,255,255,.08);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.18);border-radius:24px;
  padding:36px 24px;text-align:center;color:#fff;cursor:pointer;
  transition:.3s;position:relative;overflow:hidden
}
.role-card:hover{transform:translateY(-8px);border-color:var(--accent);box-shadow:0 20px 60px rgba(34,211,238,.25)}
.role-card.admin-card{border-color:rgba(239,68,68,.4)}
.role-card.admin-card:hover{border-color:#ef4444;box-shadow:0 20px 60px rgba(239,68,68,.25)}
.role-card .icon{font-size:72px;margin-bottom:14px;display:block}
.role-card h3{font-size:22px;margin-bottom:6px}
.role-card p{color:#cbd5e1;font-size:14px}
.planet{position:absolute;border-radius:50%;filter:blur(40px);opacity:.4;z-index:1}
.planet.p1{width:300px;height:300px;background:#8b5cf6;top:-80px;left:-80px}
.planet.p2{width:240px;height:240px;background:#22d3ee;bottom:-60px;right:-60px}

/* ── Auth forms ── */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:30px 16px;position:relative;z-index:2}
.auth-card{background:var(--card);color:var(--text);width:100%;max-width:460px;
  border-radius:22px;padding:36px 30px;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.auth-card h2{color:var(--text2);margin-bottom:6px;display:flex;align-items:center;gap:10px}
.auth-card .sub{color:var(--muted);margin-bottom:20px;font-size:14px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--text)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--input-border);border-radius:10px;
  font-size:15px;outline:none;transition:.2s;font-family:inherit;
  background:var(--input-bg);color:var(--input-text)
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.15)}
.pwd-wrap{position:relative}
.pwd-wrap input{padding-right:44px}
.pwd-toggle{position:absolute;right:10px;top:50%;transform:translateY(-50%);
  background:none;border:none;cursor:pointer;color:#6b7280;font-size:18px;padding:6px}
.btn{display:inline-block;width:100%;padding:13px;border:none;border-radius:10px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  color:#fff;font-weight:700;font-size:15px;cursor:pointer;transition:.2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(99,102,241,.35)}
.btn-sm{padding:7px 11px;width:auto;font-size:13px;border-radius:8px}
.btn-danger{background:linear-gradient(90deg,#ef4444,#f97316)}
.btn-success{background:linear-gradient(90deg,#10b981,#06b6d4)}
.btn-warn{background:linear-gradient(90deg,#f59e0b,#f97316)}
.btn-secondary{background:linear-gradient(90deg,#475569,#64748b)}
.btn-info{background:linear-gradient(90deg,#0ea5e9,#6366f1)}
.btn-outline{background:transparent;border:1.5px solid var(--primary);color:var(--primary);padding:6px 11px;font-size:13px}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-icon{width:34px;height:34px;padding:0;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;border:none;cursor:pointer;font-size:14px;transition:.15s}
.btn-icon:hover{opacity:.85;transform:scale(1.05)}
.alert{padding:11px 14px;border-radius:8px;margin-bottom:14px;font-size:14px}
.alert.err{background:#fee2e2;color:#991b1b}
.alert.ok{background:#dcfce7;color:#166534}
.switch{margin-top:14px;text-align:center;font-size:14px;color:var(--muted)}

/* ── Dashboard layout ── */
.app{display:block;min-height:100vh;background:var(--bg)}
.sidebar{width:260px;background:var(--sidebar-bg);color:#fff;padding:22px 0;
  position:fixed;top:0;left:-280px;height:100vh;overflow-y:auto;z-index:1000;
  transition:left .3s ease,background .25s}
.sidebar .brand{padding:0 20px 16px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:12px}
.sidebar .brand h3{font-size:14px;line-height:1.3;color:#e2e8f0}
.sidebar .brand small{color:#94a3b8;font-size:11px;display:block;margin-top:3px}
.sidebar .brand .logo-img{width:40px;height:40px;border-radius:0;object-fit:contain;margin-bottom:8px;background:transparent;padding:0}
.sidebar a{display:flex;align-items:center;gap:11px;padding:11px 20px;color:var(--sidebar-text);
  transition:.2s;border-left:3px solid transparent;font-size:14px}
.sidebar a:hover,.sidebar a.active{background:var(--sidebar-hover);color:#fff;border-left-color:var(--accent)}
.sidebar a i{width:18px;text-align:center}
.main{flex:1;padding:24px 28px;max-width:100%;overflow-x:auto}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;flex-wrap:wrap;gap:12px}
.topbar h1{font-size:21px;color:var(--topbar-title)}
.user-chip{display:flex;align-items:center;gap:10px;background:var(--chip-bg);padding:8px 14px;
  border-radius:999px;box-shadow:0 2px 8px rgba(0,0,0,.07);color:var(--text)}
.user-chip .avatar{width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700}

/* ── Hamburger & mobile ── */
.hamburger{display:inline-flex;align-items:center;justify-content:center;background:none;border:none;color:var(--topbar-title);font-size:22px;cursor:pointer;padding:6px 8px;flex-shrink:0}
.sidebar-close{display:block;position:absolute;top:14px;right:14px;background:rgba(255,255,255,.15);border:none;color:#fff;font-size:18px;cursor:pointer;padding:6px 10px;border-radius:8px;z-index:10}
.sidebar-close:hover{background:rgba(255,255,255,.25)}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:999}

/* ── Stats & Cards ── */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:24px}
.stat{background:var(--stat-bg);padding:18px;border-radius:14px;box-shadow:0 4px 14px rgba(0,0,0,.06);
  display:flex;align-items:center;gap:14px;border-left:5px solid var(--primary);transition:background .25s}
.stat.green{border-left-color:var(--success)}
.stat.orange{border-left-color:var(--warn)}
.stat.cyan{border-left-color:var(--accent)}
.stat.red{border-left-color:var(--danger)}
.stat i{font-size:32px;color:var(--primary);opacity:.75}
.stat.green i{color:var(--success)}.stat.orange i{color:var(--warn)}.stat.cyan i{color:var(--accent)}.stat.red i{color:var(--danger)}
.stat .num{font-size:26px;font-weight:800;color:var(--stat-num)}
.stat .lbl{font-size:13px;color:var(--muted)}

.card{background:var(--card);border-radius:14px;padding:20px;box-shadow:0 4px 14px rgba(0,0,0,.06);margin-bottom:20px;transition:background .25s}
.card h2{color:var(--text2);font-size:17px;margin-bottom:14px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}

/* ── Table ── */
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--table-border);font-size:13.5px;color:var(--text)}
th{background:var(--table-head);color:var(--table-head-color);font-weight:600;font-size:12.5px}
tr:hover td{background:var(--table-hover)}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:11px;font-weight:700}
.badge.pg{background:#dbeafe;color:#1e40af}
.badge.pgk{background:#ede9fe;color:#6d28d9}
.badge.bs{background:#fef3c7;color:#92400e}
.badge.isian{background:#dcfce7;color:#166534}
.actions{display:flex;gap:5px;flex-wrap:wrap;align-items:center}

/* ── Checkbox select ── */
.cb-all,.cb-item{width:16px;height:16px;cursor:pointer;accent-color:var(--primary)}

/* ── Toolbar ── */
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.toolbar-right{margin-left:auto;display:flex;gap:6px;flex-wrap:wrap}

/* ── Modal ── */
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:5000;display:none;align-items:center;justify-content:center}
.modal-backdrop.open{display:flex}
.modal{background:var(--card);color:var(--text);border-radius:16px;padding:28px 26px;
  width:100%;max-width:520px;max-height:90vh;overflow-y:auto;
  box-shadow:0 30px 80px rgba(0,0,0,.4);position:relative}
.modal h3{font-size:17px;color:var(--text2);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.modal-close{position:absolute;top:14px;right:14px;background:none;border:none;font-size:20px;cursor:pointer;color:var(--muted)}
.modal-close:hover{color:var(--danger)}

/* ── Quiz runner ── */
.timer{background:var(--danger);color:#fff;padding:10px 18px;border-radius:999px;font-weight:800;font-size:17px;display:inline-block}
.soal{background:var(--card2);border-radius:12px;padding:18px;margin-bottom:16px;border-left:4px solid var(--primary)}
.soal .q{font-weight:600;margin-bottom:12px;font-size:15px;color:var(--text)}
.opt{display:block;padding:10px 14px;background:var(--card);border:1.5px solid var(--border);
  border-radius:8px;margin-bottom:8px;cursor:pointer;transition:.15s;color:var(--text)}
.opt:hover{border-color:var(--primary);background:var(--table-hover)}
.opt input{margin-right:10px}

/* ── Rich Text Editor ── */
.rich-editor-wrap{
  border:1.5px solid var(--input-border);border-radius:12px;overflow:hidden;
  background:var(--input-bg);box-shadow:0 2px 10px rgba(0,0,0,.06);
  transition:border-color .2s,box-shadow .2s
}
.rich-editor-wrap:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.12)}

.editor-toolbar{background:var(--card2);border-bottom:1px solid var(--border)}

/* Baris dropdowns */
.tb-row-top{
  display:flex;gap:6px;padding:8px 10px;
  border-bottom:1px solid var(--border);background:var(--table-head)
}
.tb-sel{
  padding:5px 10px;border:1.5px solid var(--input-border);border-radius:7px;
  font-size:12.5px;background:var(--input-bg);color:var(--text);cursor:pointer;
  outline:none;transition:.15s;font-family:inherit
}
.tb-sel:hover,.tb-sel:focus{border-color:var(--primary)}
.tb-sel-font{flex:0 0 185px}.tb-sel-size{flex:0 0 95px}.tb-sel-style{flex:1;min-width:110px}

/* Baris icon */
.tb-row-icons{
  display:flex;flex-wrap:nowrap;align-items:center;gap:1px;
  padding:4px 8px;overflow-x:auto;scrollbar-width:none
}
.tb-row-icons::-webkit-scrollbar{display:none}
.tb-row-icons + .tb-row-icons{border-top:1px solid var(--border)}

/* Tombol ikon */
.tb-item{
  height:32px;min-width:32px;padding:0 8px;border:none;border-radius:6px;
  background:transparent;color:var(--text);cursor:pointer;font-size:13px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .15s,color .15s,transform .1s;
  white-space:nowrap;flex-shrink:0;position:relative;gap:4px
}
.tb-item:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}
.tb-item:active{transform:translateY(0);opacity:.85}
.tb-item.active{background:rgba(99,102,241,.15);color:var(--primary)}
.tb-item i{pointer-events:none;font-size:12.5px}
.tb-item span{font-size:11.5px;font-weight:600}

/* Separator */
.tb-sep{width:1px;height:20px;background:var(--border);margin:0 4px;flex-shrink:0}

/* Color pickers */
.tb-color{cursor:pointer;position:relative}
.tb-color input[type=color]{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none;top:0;left:0}
.tb-color-dot{
  width:14px;height:4px;border-radius:2px;margin-top:2px;
  border:1px solid rgba(0,0,0,.15)
}

/* Tooltip custom */
.tb-item[title]:hover::after{
  content:attr(title);position:absolute;bottom:calc(100% + 6px);left:50%;
  transform:translateX(-50%);background:#1e293b;color:#fff;
  font-size:11px;padding:3px 8px;border-radius:5px;white-space:nowrap;
  pointer-events:none;z-index:9999
}

/* Editor area */
.rich-editor{
  min-height:140px;max-height:520px;overflow-y:auto;
  padding:16px 18px;font-size:14.5px;color:var(--text);
  background:var(--input-bg);outline:none;line-height:1.75;
  font-family:'Segoe UI',system-ui,sans-serif
}
.rich-editor:empty::before{content:attr(data-placeholder);color:var(--muted);pointer-events:none}
.rich-editor table{border-collapse:collapse;width:100%;margin:8px 0}
.rich-editor table td,.rich-editor table th{border:1px solid var(--border);padding:7px 12px;min-width:60px}
.rich-editor img{max-width:100%;border-radius:8px;margin:4px 0;cursor:pointer}
.rich-editor img.selected{outline:2px solid var(--primary);outline-offset:2px}
.rich-editor blockquote{border-left:4px solid var(--primary);margin:10px 0;padding:8px 16px;color:var(--muted);font-style:italic;background:rgba(99,102,241,.05);border-radius:0 8px 8px 0}
.rich-editor pre{background:var(--card2);border-radius:8px;padding:12px 16px;font-family:'Courier New',monospace;font-size:13px;overflow-x:auto;border:1px solid var(--border)}
.rich-editor a{color:var(--primary);text-decoration:underline}

/* Statusbar editor */
.editor-statusbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:4px 12px;font-size:11.5px;color:var(--muted);
  background:var(--table-head);border-top:1px solid var(--border)
}

/* Upload gambar progress */
.img-upload-overlay{
  position:absolute;inset:0;background:rgba(99,102,241,.08);
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;font-size:13px;color:var(--primary);gap:8px;
  pointer-events:none;opacity:0;transition:.2s
}
.img-upload-overlay.show{opacity:1}

/* ── Settings logo preview ── */
.logo-preview{max-width:120px;max-height:80px;border-radius:8px;object-fit:contain;border:1px solid var(--border);background:var(--card2);padding:4px;display:none}
.logo-preview.show{display:block}

/* ── Responsive ── */
@media(max-width:780px){
  .app{flex-direction:column}
  .sidebar{padding-top:16px}
  .sidebar a{padding:10px 18px;font-size:13px}
  .main{padding:14px 12px}
  .topbar{margin-bottom:16px}
  .topbar h1{font-size:17px;flex:1}
  .user-chip{padding:6px 10px;font-size:12px}
  .user-chip .avatar{width:28px;height:28px;font-size:12px}
  .card{padding:14px;border-radius:12px;margin-bottom:14px}
  .card h2{font-size:15px;gap:8px}
  .stats{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}
  .stat{padding:12px;border-radius:12px;gap:10px}
  .stat i{font-size:24px}.stat .num{font-size:20px}.stat .lbl{font-size:11px}
  table{display:block;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
  table thead,table tbody,table tr{display:table;width:100%;table-layout:auto}
  th,td{padding:8px 10px;font-size:12px}
  .btn-sm{padding:6px 9px;font-size:11px}
  .auth-card{padding:24px 18px;border-radius:18px}
  .landing{padding:30px 16px}
  .role-card{padding:24px 16px;border-radius:18px}
  .role-card .icon{font-size:52px}
  .role-card h3{font-size:18px}
  .theme-toggle{bottom:16px;right:16px;width:40px;height:40px;font-size:16px}
  .toolbar{gap:5px}
  .modal{padding:20px 16px;border-radius:12px}
}