* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin:0; font-family: 'Segoe UI', Arial, sans-serif; background:#f5f3f3; color:#222; line-height:1.55; }

/* ===== Topbar / Navigasi ===== */
.topbar { background:#b22222; color:#fff; padding:10px 16px; display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:8px; position:sticky; top:0; z-index:50; }
.topbar .brand { font-weight:bold; font-size:17px; }
.topbar nav { display:flex; flex-wrap:wrap; gap:4px; }
.topbar nav a { color:#fff; text-decoration:none; padding:7px 12px; border-radius:6px; font-size:14px; white-space:nowrap; }
.topbar nav a:hover { background:rgba(255,255,255,.18); }
.topbar nav a.on { background:#fff; color:#b22222; font-weight:bold; }

.wrap { max-width:860px; margin:22px auto; padding:0 16px; }
.foot { text-align:center; font-size:12px; color:#888; padding:24px 16px; }
.card { background:#fff; border:1px solid #e4dada; border-radius:10px; padding:20px 22px; box-shadow:0 1px 3px rgba(0,0,0,.05); margin-bottom:18px; }
h1 { color:#b22222; font-size:23px; margin-top:0; line-height:1.3; }
h2 { color:#b22222; font-size:19px; }
.tip { background:#fff7e6; border-left:4px solid #f0a500; padding:8px 12px; margin:12px 0; border-radius:4px; }
code { background:#f0f0f0; padding:1px 6px; border-radius:4px; color:#c0392b; font-size:90%; word-break:break-word; }

.progress { height:8px; background:#eee; border-radius:99px; overflow:hidden; margin:14px 0; }
.progress > span { display:block; height:100%; background:#b22222; }

.btnrow { display:flex; justify-content:space-between; margin-top:18px; gap:10px; flex-wrap:wrap; }
.btn { display:inline-block; background:#b22222; color:#fff; text-decoration:none; padding:11px 18px; border-radius:8px; border:none; cursor:pointer; font-size:15px; text-align:center; }
.btn:hover { background:#8f1a1a; }
.btn.sec { background:#777; }
.btn.sec:hover { background:#5d5d5d; }
.btn.ghost { background:#fff; color:#b22222; border:1px solid #b22222; }
.btn[disabled] { background:#ccc; cursor:not-allowed; }

.steplist { display:flex; flex-wrap:wrap; gap:6px; margin:10px 0; }
.steplist a { font-size:13px; padding:6px 11px; border-radius:6px; background:#efe7e7; color:#b22222; text-decoration:none; }
.steplist a.on { background:#b22222; color:#fff; }

.opt { display:block; background:#faf7f7; border:1px solid #e4dada; border-radius:8px; padding:11px 14px; margin:7px 0; cursor:pointer; }
.opt:hover { background:#f3ecec; }
.opt input { margin-right:6px; }
.soalbox { border-bottom:1px solid #eee; padding-bottom:16px; margin-bottom:16px; }
.qnum { font-weight:bold; color:#b22222; }
.res-correct { background:#e8f7ec; border-left:4px solid #1a9a4a; padding:8px 12px; border-radius:4px; margin-top:8px; }
.res-wrong { background:#fdeaea; border-left:4px solid #d23; padding:8px 12px; border-radius:4px; margin-top:8px; }
.score { font-size:30px; font-weight:bold; color:#b22222; text-align:center; }
ul { margin:8px 0; padding-left:22px; } li { margin:4px 0; }

.filelist { list-style:none; padding:0; }
.filelist li { background:#faf7f7; border:1px solid #e4dada; border-radius:8px; padding:10px 14px; margin:7px 0; display:flex; justify-content:space-between; align-items:center; gap:10px; flex-wrap:wrap; }
.filelist li > span:last-child { display:flex; gap:6px; flex-wrap:wrap; }
.msg-ok { background:#e8f7ec; border:1px solid #1a9a4a; color:#127a38; padding:10px 14px; border-radius:8px; margin-bottom:12px; }
.msg-err { background:#fdeaea; border:1px solid #d23; color:#b3201e; padding:10px 14px; border-radius:8px; margin-bottom:12px; }
input[type=file] { padding:9px; background:#faf7f7; border:1px solid #ccc; border-radius:8px; width:100%; max-width:420px; }

.menu-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:14px; }
.menu-grid a { text-decoration:none; color:inherit; }
.menu-grid .card { margin:0; transition:.15s; height:100%; }
.menu-grid .card:hover { border-color:#b22222; transform:translateY(-2px); }
.menu-grid .ic { font-size:34px; }

iframe.pdf { width:100%; height:560px; border:1px solid #ccc; border-radius:8px; }

/* ===== Responsif: Tablet ===== */
@media (max-width: 768px) {
  .wrap { margin:16px auto; }
  .card { padding:18px; }
  iframe.pdf { height:460px; }
}

/* ===== Responsif: Mobile (HP) ===== */
@media (max-width: 560px) {
  .topbar { flex-direction:column; align-items:stretch; padding:10px 12px; gap:8px; }
  .topbar .brand { text-align:center; font-size:16px; }
  .topbar nav { width:100%; }
  .topbar nav a { flex:1 1 calc(50% - 4px); text-align:center; padding:9px 6px; }
  .wrap { padding:0 12px; margin:14px auto; }
  .card { padding:16px 14px; border-radius:8px; }
  h1 { font-size:20px; }
  h2 { font-size:17px; }
  .menu-grid { grid-template-columns:1fr; }
  .btnrow { flex-direction:column; }
  .btnrow .btn { width:100%; }
  .btn { padding:12px 16px; font-size:16px; }
  .filelist li { flex-direction:column; align-items:stretch; }
  .filelist li > span:last-child { width:100%; }
  .filelist li > span:last-child .btn { flex:1 1 auto; }
  .opt { padding:12px 14px; font-size:15px; }
  iframe.pdf { height:380px; }
  .score { font-size:26px; }
}

/* Layar sangat kecil */
@media (max-width: 360px) {
  .topbar nav a { flex:1 1 100%; }
}

/* ===== Form Kelola Materi ===== */
.flabel { display:block; font-weight:bold; color:#444; margin:14px 0 6px; font-size:14px; }
.finput { width:100%; padding:10px 12px; border:1px solid #ccc; border-radius:8px; font-size:15px; font-family:inherit; }
textarea.finput { resize:vertical; line-height:1.5; }
.flabel small { font-weight:normal; color:#888; }

/* ===== Login / User area ===== */
.topbar .userbox { display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.ubadge { font-size:13px; background:rgba(255,255,255,.18); color:#fff; padding:5px 10px; border-radius:99px; }
.ubadge.admin { background:#ffd54a; color:#7a4a00; font-weight:bold; }
.topbar .userbox .logout { color:#fff; text-decoration:none; border:1px solid rgba(255,255,255,.6); padding:5px 12px; border-radius:6px; font-size:13px; }
.topbar .userbox .logout:hover { background:#fff; color:#b22222; }

/* ===== Ranking table ===== */
.rank-table { width:100%; border-collapse:collapse; margin-top:6px; }
.rank-table th, .rank-table td { padding:9px 10px; text-align:left; border-bottom:1px solid #eee; font-size:14px; }
.rank-table th { background:#fbeaea; color:#7a1f1f; font-weight:bold; }
.rank-table tr.me { background:#fff6d8; }
.rank-table tr.me td { font-weight:600; }
@media (max-width:560px){ .rank-table th, .rank-table td { padding:7px 6px; font-size:13px; } }

/* ===== Formasi & komponen tambahan ===== */
.menu-card{display:block;text-decoration:none;color:inherit;text-align:center;transition:transform .12s,box-shadow .12s;}
.menu-card:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(178,34,34,.18);}
.menu-card .mc-icon{font-size:34px;margin-bottom:6px;}
.menu-card h3{margin:4px 0;color:#b22222;}
.menu-card p{margin:0;color:#666;font-size:14px;}
.stepnum{display:inline-block;min-width:30px;height:30px;line-height:30px;text-align:center;margin:2px;border-radius:8px;background:#eee;color:#444;text-decoration:none;font-weight:600;}
.stepnum.on{background:#b22222;color:#fff;}
.materi-isi{line-height:1.7;color:#222;}
.materi-isi ul{padding-left:20px;}
.pembahasan{margin-top:10px;padding:10px 12px;background:#f3f7ff;border-left:4px solid #2f6fd6;border-radius:6px;color:#234;font-size:14px;}
textarea.finput{font-family:inherit;resize:vertical;}
select.finput{background:#fff;}
@media (max-width:560px){.menu-card .mc-icon{font-size:28px;}}

/* ===== Limit / Freemium ===== */
.limitbar{background:#fff7e6;border:1px solid #f0c36d;color:#8a5a00;padding:9px 12px;border-radius:8px;margin:10px 0;font-size:14px}
.limitbar a{color:#b22222;font-weight:700;text-decoration:none}
.lockbox{text-align:center;border:1px dashed #d9a; background:#fff5f5}
.lockbox .lock-ic{font-size:46px;margin-bottom:6px}
.locked-soal{opacity:.7;background:#fafafa}
.lock-tag{display:inline-block;background:#fde2e2;color:#b22222;border-radius:6px;font-size:12px;padding:2px 8px;margin-left:6px;vertical-align:middle}
.locked-file{opacity:.65}
.tierbadge{display:inline-block;border-radius:6px;font-size:12px;padding:2px 8px;margin-left:6px;vertical-align:middle;font-weight:700}
.tierbadge.t-free{background:#eee;color:#666}
.tierbadge.t-reguler{background:#e3f6e3;color:#1d7a1d}
.tierbadge.t-minta{background:#fff3cd;color:#8a5a00}
.upgrade-card{background:linear-gradient(135deg,#b22222,#e05a5a);color:#fff;border:none}
.upgrade-card h3,.upgrade-card p{color:#fff}
.upgrade-card .btn{background:#fff;color:#b22222}

/* ===== Putar suara materi (TTS) ===== */
.tts-bar{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:6px 0 14px;padding:10px 12px;background:#fbeaea;border:1px solid #e7b7b7;border-radius:10px}
.tts-bar .btn{margin:0}
.tts-speed{font-size:13px;color:#7a3b3b;display:flex;align-items:center;gap:6px}
.tts-speed select{padding:4px 6px;border:1px solid #d9a5a5;border-radius:6px;background:#fff;color:#333}
.tts-status{font-size:13px;color:#b22222;font-weight:600}
@media(max-width:600px){.tts-bar{gap:8px}.tts-status{flex-basis:100%}}