/* ============ QUEST ACADEMY — game theme ============ */
:root {
  --bg: #0b0e1a;
  --bg2: #11152a;
  --panel: #151a33;
  --line: #2a3160;
  --cyan: #22d3ee;
  --magenta: #f471b5;
  --gold: #ffd23f;
  --green: #4ade80;
  --red: #f87171;
  --orange: #fb923c;
  --text: #e8ecff;
  --dim: #9aa3c7;
  --font-pixel: 'Press Start 2P', monospace;
  --font-body: 'Space Grotesk', system-ui, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  background:
    radial-gradient(1200px 600px at 20% -10%, #1b2350 0%, transparent 60%),
    radial-gradient(1000px 500px at 90% 10%, #3a1445 0%, transparent 55%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  background-attachment: fixed;
}
/* subtle grid */
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image: linear-gradient(#ffffff06 1px, transparent 1px),
                    linear-gradient(90deg, #ffffff06 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 30%, transparent 75%);
}
#app { position: relative; z-index: 1; max-width: 960px; margin: 0 auto; padding: 0 16px 80px; }

/* ---------- HUD ---------- */
.hud {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 14px;
  background: rgba(11,14,26,.92); backdrop-filter: blur(8px);
  border-bottom: 3px solid var(--line);
  padding: 10px 16px; margin: 0 -16px 24px;
}
.hud .avatar {
  width: 46px; height: 46px; border-radius: 10px;
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  display: grid; place-items: center; font-size: 26px;
  border: 3px solid #0b0e1a; box-shadow: 0 0 0 2px var(--gold);
}
.hud .who { line-height: 1.25; }
.hud .who .lvl {
  font-family: var(--font-pixel); font-size: 9px; color: var(--gold);
}
.hud .who .rank { font-size: 12px; color: var(--dim); }
.xpwrap { flex: 1; min-width: 120px; }
.xpbar { height: 14px; background: #05070f; border: 2px solid var(--line); border-radius: 8px; overflow: hidden; }
.xpbar > div {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--green));
  transition: width .8s cubic-bezier(.2,.9,.2,1);
  box-shadow: 0 0 12px #22d3ee88;
}
.xplabel { font-size: 11px; color: var(--dim); margin-top: 3px; font-family: var(--font-pixel); font-size: 8px;}
.hud .streak { font-family: var(--font-pixel); font-size: 10px; color: #fb923c; white-space: nowrap; }
.iconbtn {
  background: var(--panel); border: 2px solid var(--line); color: var(--text);
  border-radius: 8px; padding: 8px 10px; cursor: pointer; font-size: 16px;
}
.iconbtn:hover { border-color: var(--cyan); }

/* ---------- type & buttons ---------- */
h1.logo {
  font-family: var(--font-pixel); text-align: center;
  font-size: clamp(22px, 5vw, 42px); margin: 34px 0 8px;
  background: linear-gradient(90deg, var(--cyan), var(--magenta), var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 18px #22d3ee55);
}
.tagline { text-align: center; color: var(--dim); margin-bottom: 6px; }
.press-start {
  text-align: center; font-family: var(--font-pixel); font-size: 11px;
  color: var(--gold); margin: 26px 0 18px; animation: blink 1.4s steps(2) infinite;
}
@keyframes blink { 50% { opacity: .15; } }
.btn {
  font-family: var(--font-pixel); font-size: 11px;
  background: linear-gradient(180deg, #2b3a8f, #1b2350);
  color: var(--text); border: 3px solid var(--cyan); border-radius: 10px;
  padding: 14px 18px; cursor: pointer; text-decoration: none; display: inline-block;
  box-shadow: 0 4px 0 #0a0d1d, 0 0 16px #22d3ee33; transition: transform .08s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 0 #0a0d1d, 0 0 22px #22d3ee66; }
.btn:active { transform: translateY(2px); box-shadow: 0 1px 0 #0a0d1d; }
.btn.gold { border-color: var(--gold); box-shadow: 0 4px 0 #0a0d1d, 0 0 16px #ffd23f44; }
.btn.ghost { border-color: var(--line); background: var(--panel); box-shadow: none; }
.btn:disabled { opacity: .45; cursor: default; transform: none; }

/* ---------- world select ---------- */
.worlds { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 8px; }
.world {
  position: relative; border-radius: 16px; padding: 26px 22px; overflow: hidden;
  background: var(--panel); border: 3px solid var(--line);
  cursor: pointer; transition: transform .15s, border-color .15s;
  text-decoration: none; color: var(--text); display: block;
}
.world:hover { transform: translateY(-4px) scale(1.01); }
.world.jarkom { border-color: var(--cyan); box-shadow: 0 0 28px #22d3ee22; }
.world.ib { border-color: var(--magenta); box-shadow: 0 0 28px #f471b522; }
.world.pemweb { border-color: var(--orange); box-shadow: 0 0 28px #fb923c22; }
.world .wic { font-size: 52px; }
.world h2 { font-family: var(--font-pixel); font-size: 15px; margin: 14px 0 8px; line-height: 1.6; }
.world.jarkom h2 { color: var(--cyan); } .world.ib h2 { color: var(--magenta); } .world.pemweb h2 { color: var(--orange); }
.world p { color: var(--dim); font-size: 14px; margin-bottom: 14px; }
.world .meta { display: flex; gap: 14px; font-size: 12px; color: var(--dim); margin-bottom: 16px; flex-wrap: wrap;}
.world .meta b { color: var(--text); }
.world .enter { font-family: var(--font-pixel); font-size: 10px; color: var(--gold); }
.world .orb { position: absolute; width: 190px; height: 190px; border-radius: 50%; filter: blur(60px); opacity: .35; right: -60px; top: -60px; pointer-events: none;}
.world.jarkom .orb { background: var(--cyan); } .world.ib .orb { background: var(--magenta); } .world.pemweb .orb { background: var(--orange); }
.pbar { height: 10px; background: #05070f; border-radius: 6px; overflow: hidden; border: 2px solid var(--line); margin-top: 10px;}
.pbar > div { height: 100%; background: linear-gradient(90deg, var(--gold), #fb923c); width: 0%; transition: width .6s; }

/* ---------- badges ---------- */
.badges { margin-top: 34px; }
.badges h3 { font-family: var(--font-pixel); font-size: 11px; color: var(--gold); margin-bottom: 12px; }
.badge-row { display: flex; gap: 10px; flex-wrap: wrap; }
.badge {
  background: var(--panel); border: 2px solid var(--line); border-radius: 10px;
  padding: 10px 12px; font-size: 12px; color: var(--dim); display: flex; gap: 8px; align-items: center;
}
.badge.unlocked { color: var(--text); border-color: var(--gold); box-shadow: 0 0 12px #ffd23f33; }
.badge .bic { font-size: 20px; filter: grayscale(1); }
.badge.unlocked .bic { filter: none; }

/* ---------- course / stages ---------- */
.crumb { margin: 4px 0 18px; }
.crumb a { color: var(--cyan); text-decoration: none; font-size: 14px; }
.course-head { display: flex; align-items: center; gap: 16px; margin-bottom: 6px; }
.course-head .cic { font-size: 44px; }
.course-head h2 { font-family: var(--font-pixel); font-size: 17px; line-height: 1.7; }
.course-head.jarkom h2 { color: var(--cyan); } .course-head.ib h2 { color: var(--magenta); } .course-head.pemweb h2 { color: var(--orange); }
.stage {
  background: var(--panel); border: 2px solid var(--line); border-radius: 14px;
  padding: 18px; margin: 14px 0; display: flex; gap: 16px; align-items: center; flex-wrap: wrap;
}
.stage .num {
  font-family: var(--font-pixel); font-size: 13px; width: 46px; height: 46px; flex: none;
  display: grid; place-items: center; border-radius: 12px;
  background: #05070f; border: 2px solid var(--cyan); color: var(--cyan);
}
.stage.ib .num { border-color: var(--magenta); color: var(--magenta); }
.stage.pemweb .num { border-color: var(--orange); color: var(--orange); }
.stage .sinfo { flex: 1; min-width: 200px; }
.stage .sinfo h3 { font-size: 17px; margin-bottom: 4px; }
.stage .stars { color: var(--gold); font-size: 14px; letter-spacing: 2px; }
.stage .stars .off { color: #3a4066; }
.stage .sbtns { display: flex; gap: 10px; }
.stage .sbtns .btn { font-size: 9px; padding: 11px 13px; }

/* ---------- materi reader ---------- */
.questlog {
  background: linear-gradient(180deg, #12172f, #0e1226);
  border: 3px solid var(--gold); border-radius: 14px; padding: 26px 24px;
  box-shadow: 0 0 30px #ffd23f18;
}
.questlog h2 { font-family: var(--font-pixel); font-size: 14px; color: var(--gold); margin-bottom: 4px; line-height: 1.8;}
.questlog .qsub { color: var(--dim); font-size: 13px; margin-bottom: 18px; }
.questlog .body h3 { color: var(--cyan); margin: 20px 0 8px; font-size: 17px; }
.questlog .body p { margin: 8px 0; line-height: 1.75; color: #dbe1ff; }
.questlog .body ul { margin: 8px 0 8px 20px; line-height: 1.75; }
.questlog .body li { margin: 5px 0; }
.questlog .body table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 14px; }
.questlog .body th, .questlog .body td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; }
.questlog .body th { background: #1b2350; color: var(--gold); }
.questlog .body code { background: #05070f; padding: 2px 7px; border-radius: 6px; color: var(--green); font-size: 13px;}
.reader-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 22px; flex-wrap: wrap;}

/* ---------- battle ---------- */
.arena { text-align: center; }
.fighters { display: flex; justify-content: space-between; align-items: flex-end; gap: 10px; margin: 10px 0 20px; }
.fighter { flex: 1; }
.fighter .fname { font-family: var(--font-pixel); font-size: 9px; margin-bottom: 6px; }
.fighter .fhp { height: 16px; background: #05070f; border: 2px solid var(--line); border-radius: 9px; overflow: hidden; }
.fighter .fhp > div { height: 100%; transition: width .5s; }
.fighter.you .fhp > div { background: linear-gradient(90deg, var(--green), var(--cyan)); }
.fighter.boss .fhp > div { background: linear-gradient(90deg, var(--red), #fb923c); }
.fighter .femoji { font-size: 52px; margin-bottom: 4px; }
.fighter .femoji.hit { animation: shake .4s; }
@keyframes shake { 25% { transform: translateX(-8px) rotate(-6deg);} 75% { transform: translateX(8px) rotate(6deg);} }
.vs { font-family: var(--font-pixel); color: var(--red); font-size: 14px; padding-bottom: 26px; animation: blink 1.2s steps(2) infinite;}
.qcard {
  background: var(--panel); border: 3px solid var(--line); border-radius: 14px;
  padding: 24px 20px; text-align: left;
}
.qcard .qnum { font-family: var(--font-pixel); font-size: 9px; color: var(--dim); margin-bottom: 10px;}
.qcard .qtext { font-size: 18px; line-height: 1.6; margin-bottom: 18px; }
.opt {
  display: block; width: 100%; text-align: left; margin: 9px 0;
  background: #0e1330; border: 2px solid var(--line); color: var(--text);
  border-radius: 10px; padding: 13px 15px; font-size: 15px; cursor: pointer; font-family: var(--font-body);
  transition: border-color .12s, background .12s;
}
.opt:hover:not(:disabled) { border-color: var(--cyan); background: #141b3d; }
.opt:disabled { cursor: default; opacity: .85; }
.opt.correct { border-color: var(--green); background: #0f2c1c; box-shadow: 0 0 14px #4ade8044; }
.opt.wrong { border-color: var(--red); background: #2c1215; box-shadow: 0 0 14px #f8717144; }
.opt .k { font-family: var(--font-pixel); font-size: 10px; color: var(--gold); margin-right: 10px; }
.explain {
  margin-top: 14px; background: #0a0f24; border-left: 4px solid var(--gold);
  padding: 12px 14px; border-radius: 0 10px 10px 0; font-size: 14px; line-height: 1.65; color: #dbe1ff;
  animation: slideup .3s ease;
}
@keyframes slideup { from { opacity: 0; transform: translateY(8px);} }
.dmg {
  position: absolute; font-family: var(--font-pixel); font-size: 16px; color: var(--gold);
  animation: dmgfloat 1s ease forwards; pointer-events: none;
}
@keyframes dmgfloat { to { transform: translateY(-46px); opacity: 0; } }
.result { text-align: center; padding: 20px 0; }
.result .big { font-size: 64px; margin-bottom: 8px; }
.result h2 { font-family: var(--font-pixel); font-size: 18px; margin-bottom: 10px; }
.result h2.win { color: var(--gold); text-shadow: 0 0 20px #ffd23f88; }
.result h2.lose { color: var(--red); }
.result .stars { font-size: 34px; letter-spacing: 6px; margin: 10px 0; }
.xp-gain { font-family: var(--font-pixel); font-size: 11px; color: var(--green); margin: 12px 0; line-height: 2; }
.result .rbtns { display: flex; gap: 12px; justify-content: center; margin-top: 18px; flex-wrap: wrap; }

/* ---------- misc ---------- */
.empty { text-align: center; color: var(--dim); padding: 60px 20px; }
.empty .big { font-size: 54px; margin-bottom: 12px; }
footer { text-align: center; color: var(--dim); font-size: 12px; margin-top: 50px; }
footer .pixel { font-family: var(--font-pixel); font-size: 8px; color: #3a4066; }
@media (max-width: 560px) {
  .hud .who .rank { display: none; }
  .fighter .femoji { font-size: 40px; }
  .stage .sbtns { width: 100%; } .stage .sbtns .btn { flex: 1; text-align: center; }
}