:root{
  --paper:#f3ede1;
  --paper-2:#ece3d3;
  --card:#fbf8f1;
  --ink:#23241f;
  --ink-soft:#5b5a4f;
  --line:#d9cfbb;
  --accent:#b5430f;       /* burnt amber */
  --accent-deep:#7c2d0a;
  --green:#2f5d3a;        /* benar */
  --red:#9b2c2c;          /* salah */
  --gold:#a87a1e;
  --shadow:0 18px 40px -20px rgba(40,30,15,.45);
  --radius:18px;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  font-family:"Hanken Grotesk",system-ui,sans-serif;
  background:
    radial-gradient(1200px 600px at 85% -10%, #fff6e6 0%, transparent 55%),
    radial-gradient(900px 500px at -10% 110%, #efe7d6 0%, transparent 50%),
    var(--paper);
  color:var(--ink);
  line-height:1.55;
  min-height:100vh;
}
.grain{
  position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- header ---------- */
.topbar{
  position:relative;z-index:1;
  max-width:920px;margin:0 auto;padding:34px 22px 8px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.brand{display:flex;align-items:center;gap:16px}
.mark{
  font-family:"Fraunces",serif;font-weight:600;font-size:30px;
  width:54px;height:54px;border-radius:14px;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(150deg,var(--accent),var(--accent-deep));
  box-shadow:var(--shadow);
}
h1{font-family:"Fraunces",serif;font-weight:600;font-size:30px;margin:0;letter-spacing:-.5px}
.sub{margin:2px 0 0;color:var(--ink-soft);font-size:14px}
.engine{
  font-size:13px;color:var(--ink-soft);
  background:var(--card);border:1px solid var(--line);
  padding:7px 13px;border-radius:999px;
}
.engine strong{color:var(--accent-deep)}

/* ---------- layout ---------- */
main{position:relative;z-index:1;max-width:920px;margin:0 auto;padding:18px 22px 60px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;margin-bottom:22px;box-shadow:var(--shadow);
}
.card-title{
  font-family:"Fraunces",serif;font-size:15px;font-weight:600;letter-spacing:.04em;
  text-transform:uppercase;color:var(--accent-deep);
  margin:0 0 14px;display:flex;align-items:center;gap:10px;
}
.card-title:not(:first-child){margin-top:30px}

/* ---------- dropzone ---------- */
.dropzone{
  border:2px dashed var(--line);border-radius:14px;background:var(--paper-2);
  padding:30px;text-align:center;cursor:pointer;transition:.18s;
}
.dropzone:hover,.dropzone.drag{border-color:var(--accent);background:#f7ecdc}
.dz-icon{
  font-size:30px;width:58px;height:58px;border-radius:50%;margin:0 auto 12px;
  display:grid;place-items:center;color:var(--accent);
  background:#fff;border:1px solid var(--line);
}
.dz-inner p{margin:0;font-size:15px}
.dz-hint{display:block;margin-top:6px;color:var(--ink-soft);font-size:13px}

.filelist{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.filelist li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:10px;
  padding:9px 13px;font-size:14px;
}
.filelist .fx{display:flex;align-items:center;gap:10px;min-width:0}
.filelist .ftag{
  font-size:11px;text-transform:uppercase;letter-spacing:.05em;
  background:var(--accent);color:#fff;padding:2px 7px;border-radius:6px;flex:none;
}
.filelist .fname{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.filelist .rm{border:none;background:none;color:var(--red);cursor:pointer;font-size:18px;line-height:1}

/* ---------- paste ---------- */
.paste{margin-top:16px}
.paste summary{cursor:pointer;color:var(--ink-soft);font-size:14px}
.paste textarea{width:100%;margin-top:10px}

/* ---------- fields ---------- */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--ink-soft)}
input,select,textarea{
  font-family:inherit;font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:10px;padding:11px 13px;
  transition:.15s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(181,67,15,.13)}

/* ---------- buttons ---------- */
.btn-primary{
  margin-top:22px;width:100%;border:none;cursor:pointer;
  font-family:"Fraunces",serif;font-size:17px;font-weight:600;color:#fff;
  background:linear-gradient(150deg,var(--accent),var(--accent-deep));
  padding:15px;border-radius:12px;box-shadow:var(--shadow);transition:.15s;
}
.btn-primary:hover{transform:translateY(-1px)}
.btn-primary:disabled{opacity:.55;cursor:wait;transform:none}
.btn-ghost{
  display:block;margin:6px auto 0;background:none;border:1px solid var(--line);
  color:var(--ink-soft);padding:11px 20px;border-radius:10px;cursor:pointer;font-size:14px;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-deep)}

.error{color:var(--red);font-size:14px;margin-top:12px}

/* ---------- loading ---------- */
.loading{text-align:center;padding:50px}
.spinner{
  width:46px;height:46px;margin:0 auto 18px;border-radius:50%;
  border:4px solid var(--line);border-top-color:var(--accent);
  animation:spin 1s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- summary ---------- */
.summary{position:relative}
.badge{
  font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-deep);
  background:#f5e3cf;border:1px solid #e6c9a3;padding:3px 9px;border-radius:6px;
}
.summary h2{font-family:"Fraunces",serif;font-size:25px;margin:12px 0 8px;letter-spacing:-.3px}
.summary p{margin:0;color:var(--ink-soft)}
.files{font-size:13px;margin-top:12px !important;color:var(--ink-soft);opacity:.85}
.scoreboard{
  margin-top:16px;display:inline-block;font-size:14px;color:var(--ink);
  background:var(--paper-2);border:1px solid var(--line);padding:8px 14px;border-radius:10px;
}
.scoreboard strong{color:var(--accent-deep)}

/* ---------- questions ---------- */
.qcard{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;margin-bottom:18px;box-shadow:var(--shadow);
  animation:rise .4s ease both;
}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.qhead{display:flex;gap:12px;align-items:baseline;margin-bottom:14px}
.qnum{
  font-family:"Fraunces",serif;font-weight:600;color:#fff;flex:none;
  background:var(--ink);width:30px;height:30px;border-radius:8px;
  display:grid;place-items:center;font-size:14px;
}
.qtype{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);margin-left:auto}
.qtext{font-size:17px;font-weight:500;line-height:1.5}

.options{display:flex;flex-direction:column;gap:10px;margin-top:16px}
.opt{
  display:flex;gap:12px;align-items:flex-start;text-align:left;
  background:#fff;border:1.5px solid var(--line);border-radius:12px;
  padding:13px 15px;cursor:pointer;font-size:15px;transition:.14s;font-family:inherit;color:var(--ink);
}
.opt:hover{border-color:var(--accent)}
.opt .key{
  font-weight:700;flex:none;width:26px;height:26px;border-radius:7px;
  display:grid;place-items:center;background:var(--paper-2);border:1px solid var(--line);font-size:13px;
}
.opt.selected{border-color:var(--accent);background:#fbeede}
.opt.correct{border-color:var(--green);background:#e9f3ea}
.opt.correct .key{background:var(--green);color:#fff;border-color:var(--green)}
.opt.wrong{border-color:var(--red);background:#f7e9e9}
.opt.wrong .key{background:var(--red);color:#fff;border-color:var(--red)}
.opt:disabled{cursor:default}

.reveal{
  margin-top:16px;border-top:1px dashed var(--line);padding-top:15px;
  font-size:14.5px;animation:rise .3s ease both;
}
.reveal .rrow{margin:0 0 9px}
.reveal .lbl{
  font-family:"Fraunces",serif;font-size:12px;text-transform:uppercase;letter-spacing:.05em;
  color:var(--accent-deep);display:block;margin-bottom:2px;
}
.reveal .src{color:var(--ink-soft);font-style:italic}
.verdict{font-weight:600}
.verdict.ok{color:var(--green)}
.verdict.no{color:var(--red)}

/* essay */
.essay-answer{width:100%;margin-top:14px}
.essay-actions{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.btn-sm{
  border:none;cursor:pointer;font-family:inherit;font-size:14px;font-weight:600;
  padding:10px 18px;border-radius:10px;transition:.14s;
}
.btn-check{background:var(--ink);color:#fff}
.btn-check:hover{background:#000}
.btn-check:disabled{opacity:.5;cursor:wait}
.btn-reveal{background:var(--paper-2);color:var(--ink);border:1px solid var(--line)}
.btn-reveal:hover{border-color:var(--accent)}

.scorepill{
  display:inline-block;font-family:"Fraunces",serif;font-weight:600;font-size:15px;
  padding:4px 12px;border-radius:999px;color:#fff;margin-bottom:10px;
}
.kpts{margin:6px 0 0;padding-left:18px}
.kpts li{margin:2px 0;font-size:14px}
.kpts .miss{color:var(--red)}
.kpts .hit{color:var(--green)}

.foot{
  position:relative;z-index:1;text-align:center;color:var(--ink-soft);
  font-size:13px;padding:10px 0 40px;
}

.progress{
  display:flex;align-items:center;gap:12px;justify-content:center;
  color:var(--ink-soft);font-size:14px;padding:14px;margin-bottom:14px;
  background:var(--card);border:1px dashed var(--line);border-radius:14px;
}
.spinner-sm{
  width:18px;height:18px;border-radius:50%;flex:none;
  border:3px solid var(--line);border-top-color:var(--accent);
  animation:spin 1s linear infinite;
}
.batch-error{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:space-between;
  background:#f7e9e9;border:1px solid #e3b9b9;border-radius:14px;
  padding:14px 16px;margin-bottom:14px;color:var(--red);font-size:14px;
}

@media(max-width:620px){
  .grid{grid-template-columns:1fr}
  h1{font-size:25px}
  .card{padding:20px}
}