:root{
  --bg:#0b1020;
  --bg2:#111834;
  --panel:#161d3d;
  --line:#273063;
  --text:#e8ecff;
  --muted:#94a0d0;
  --accent:#41e0a2;
  --accent2:#6c8cff;
  --gold:#ffd166;
  --pink:#ff6b9d;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;
  background:radial-gradient(1200px 600px at 70% -10%,#1b2a6b 0%,var(--bg) 55%);
  color:var(--text);min-height:100vh;overflow-x:hidden;
}
.stars{position:fixed;inset:0;pointer-events:none;z-index:0}
.star{position:absolute;background:#fff;border-radius:50%;opacity:.5;animation:tw 3s infinite}
@keyframes tw{0%,100%{opacity:.15}50%{opacity:.8}}

/* TOPBAR */
.topbar{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:14px 26px;background:rgba(11,16,32,.82);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.logo{font-weight:800;font-size:22px;color:var(--accent);letter-spacing:1px}
.topbar nav a{color:var(--muted);text-decoration:none;margin-left:22px;font-size:15px;transition:.2s}
.topbar nav a:hover{color:var(--accent)}

main{position:relative;z-index:1;max-width:1100px;margin:0 auto;padding:0 22px}

/* HERO */
.hero{display:flex;gap:40px;align-items:center;justify-content:space-between;padding:70px 0 50px;flex-wrap:wrap}
.hello{color:var(--muted);font-size:18px;letter-spacing:2px;text-transform:uppercase}
.name{
  font-size:clamp(46px,8vw,84px);line-height:1.02;margin:8px 0 14px;
  background:linear-gradient(90deg,var(--accent),var(--accent2),var(--pink));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.tagline{font-size:20px;color:#cbd3ff;max-width:520px;line-height:1.55}
.accent{color:var(--accent);font-weight:600}
.hero-buttons{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}

.btn{
  border:none;cursor:pointer;font-size:16px;font-weight:600;border-radius:12px;
  padding:13px 24px;transition:.2s;font-family:inherit;
}
.btn-main{background:linear-gradient(90deg,var(--accent),#2ec8ff);color:#062015;box-shadow:0 8px 24px rgba(65,224,162,.28)}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(65,224,162,.4)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn.small{padding:8px 14px;font-size:13px}

.stats{display:flex;gap:14px;margin-top:34px}
.stat{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:12px 20px;text-align:center;min-width:92px;
}
.stat-num{display:block;font-size:26px;font-weight:800;color:var(--gold)}
.stat-lbl{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1px}

/* AVATAR */
.hero-avatar{position:relative;display:flex;flex-direction:column;align-items:center;gap:12px}
.avatar-ring{
  position:absolute;top:-6px;width:280px;height:280px;border-radius:50%;
  border:2px dashed rgba(108,140,255,.5);animation:spin 26s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
#avatarCanvas{position:relative;z-index:2;background:radial-gradient(circle at 50% 35%,#1e2a5e,#0d1330);border-radius:50%;box-shadow:0 18px 50px rgba(0,0,0,.5)}
.avatar-badge{
  position:absolute;bottom:-4px;z-index:3;background:var(--gold);color:#3a2a00;
  font-weight:800;font-size:13px;padding:6px 16px;border-radius:20px;letter-spacing:1px;
}

/* SECTIONS */
.section{padding:50px 0}
.section-title{font-size:32px;margin-bottom:10px}
.section-sub{color:var(--muted);margin-bottom:26px;font-size:16px}
.cursor{color:var(--accent);animation:blink 1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}

/* SKILLS */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.skill{
  background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px;
  transition:.25s;position:relative;overflow:hidden;
}
.skill:hover{transform:translateY(-4px);border-color:var(--accent2)}
.skill-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.skill-name{font-weight:700;font-size:17px}
.skill-pct{color:var(--accent);font-weight:800}
.skill-bar{height:9px;background:#0c1230;border-radius:6px;overflow:hidden}
.skill-fill{height:100%;border-radius:6px;width:0;transition:width 1.1s cubic-bezier(.2,.8,.2,1)}
.skill-note{margin-top:10px;font-size:13px;color:var(--muted)}

/* QUESTS */
.quest-list{display:flex;flex-direction:column;gap:14px}
.quest{
  display:flex;align-items:center;gap:18px;background:var(--panel);
  border:1px solid var(--line);border-radius:16px;padding:18px 20px;transition:.2s;
}
.quest.done{border-color:rgba(65,224,162,.5);background:rgba(65,224,162,.06)}
.quest-icon{font-size:30px;width:46px;text-align:center}
.quest-body{flex:1}
.quest-title{font-weight:700;font-size:17px}
.quest-title.done{text-decoration:line-through;color:var(--muted)}
.quest-desc{color:var(--muted);font-size:14px;margin-top:4px}
.quest-xp{color:var(--gold);font-weight:800;font-size:15px;white-space:nowrap}
.quest-btn{
  background:linear-gradient(90deg,var(--accent2),var(--pink));color:#fff;border:none;
  padding:10px 18px;border-radius:10px;font-weight:700;cursor:pointer;font-size:14px;
  font-family:inherit;transition:.2s;white-space:nowrap;
}
.quest-btn:hover{transform:scale(1.05)}
.quest-btn:disabled{background:#2a3160;color:#7b85c0;cursor:default;transform:none}

/* TERMINAL */
.term{background:#070b1c;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 16px 44px rgba(0,0,0,.5)}
.term-bar{display:flex;align-items:center;gap:8px;padding:11px 15px;background:#10163a;border-bottom:1px solid var(--line)}
.dot{width:12px;height:12px;border-radius:50%}
.red{background:#ff5f57}.yellow{background:#febc2e}.green{background:#28c840}
.term-title{margin-left:10px;font-size:13px;color:var(--muted);font-family:monospace}
.term-body{
  padding:16px;height:270px;overflow-y:auto;font-family:"Cascadia Code",Consolas,monospace;
  font-size:14.5px;line-height:1.55;color:#9ff5cf;
}
.term-line{white-space:pre-wrap;word-break:break-word}
.term-line.cmd{color:#e8ecff}
.term-line.err{color:#ff7b93}
.term-line.info{color:#8fb4ff}
.prompt{color:var(--accent);font-family:monospace;font-size:14px;white-space:nowrap}
.term-input-row{display:flex;gap:10px;align-items:center;padding:12px 16px;border-top:1px solid var(--line);background:#0a0f26}
#termInput{
  flex:1;background:transparent;border:none;outline:none;color:#e8ecff;
  font-family:"Cascadia Code",Consolas,monospace;font-size:15px;
}

/* FOOTER + TOAST */
.footer{
  border-top:1px solid var(--line);margin-top:40px;padding:26px;text-align:center;
  color:var(--muted);font-size:14px;display:flex;flex-direction:column;gap:14px;align-items:center;
}
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,120px);
  background:linear-gradient(90deg,var(--accent),#2ec8ff);color:#062015;
  padding:14px 26px;border-radius:14px;font-weight:800;font-size:16px;
  box-shadow:0 12px 34px rgba(0,0,0,.4);transition:transform .4s cubic-bezier(.2,.9,.2,1);z-index:50;
}
.toast.show{transform:translate(-50%,0)}

/* QUIZ MODAL */
.quiz-overlay{
  position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;
  background:rgba(5,8,20,.78);backdrop-filter:blur(6px);padding:20px;
}
.quiz-overlay.open{display:flex}
.quiz-box{
  width:100%;max-width:560px;background:var(--panel);border:1px solid var(--line);
  border-radius:20px;padding:26px 28px;box-shadow:0 24px 70px rgba(0,0,0,.6);
  animation:quizIn .28s cubic-bezier(.2,.9,.2,1);max-height:90vh;overflow-y:auto;
}
@keyframes quizIn{from{transform:scale(.92) translateY(16px);opacity:0}to{transform:none;opacity:1}}
.quiz-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.quiz-icon{font-size:34px}
.quiz-title{font-weight:800;font-size:19px}
.quiz-progress{color:var(--muted);font-size:13px;margin-top:2px}
.quiz-close{
  margin-left:auto;background:#0c1230;border:1px solid var(--line);color:var(--muted);
  width:34px;height:34px;border-radius:10px;cursor:pointer;font-size:15px;transition:.2s;
}
.quiz-close:hover{color:#ff7b93;border-color:#ff7b93}
.quiz-bar{height:8px;background:#0c1230;border-radius:6px;overflow:hidden;margin-bottom:18px}
.quiz-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),#2ec8ff);transition:width .4s;border-radius:6px}
.quiz-q{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:16px}
.quiz-options{display:flex;flex-direction:column;gap:10px}
.quiz-opt{
  display:flex;align-items:center;gap:12px;text-align:left;width:100%;
  background:#10163a;border:1.5px solid var(--line);color:var(--text);
  padding:13px 16px;border-radius:12px;font-size:15.5px;cursor:pointer;
  font-family:inherit;transition:.18s;
}
.quiz-opt:hover:not(:disabled){border-color:var(--accent2);transform:translateX(4px)}
.quiz-opt.selected{border-color:var(--accent2);background:rgba(108,140,255,.16)}
.quiz-opt.correct{border-color:var(--accent);background:rgba(65,224,162,.14);color:#c8ffe9}
.quiz-opt.wrong{border-color:#ff6b9d;background:rgba(255,107,157,.13);color:#ffd3e0}
.quiz-opt.locked{cursor:default;transform:none}
.opt-letter{
  width:28px;height:28px;flex:0 0 28px;border-radius:8px;background:#1b2350;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;color:var(--muted);
}
.quiz-opt.correct .opt-letter{background:var(--accent);color:#062015}
.quiz-opt.wrong .opt-letter{background:var(--pink);color:#3a0017}
.quiz-feedback{margin-top:14px;font-size:15px;color:var(--muted);min-height:22px}
.quiz-next{width:100%;margin-top:16px}
.quiz-next:disabled{background:#2a3160;color:#7b85c0;box-shadow:none;cursor:default;transform:none}
.quiz-result{text-align:center;padding:6px 0}
.quiz-result-emoji{font-size:60px;animation:pop .5s cubic-bezier(.2,1.4,.4,1)}
@keyframes pop{from{transform:scale(0)}to{transform:scale(1)}}
.quiz-result-title{font-size:26px;font-weight:800;margin-top:8px}
.quiz-result-score{font-size:18px;margin-top:10px;color:var(--gold)}
.quiz-result-hint{color:var(--muted);margin-top:8px;font-size:15px}
.quiz-result-btns{display:flex;gap:12px;justify-content:center;margin-top:22px;flex-wrap:wrap}

@media(max-width:760px){
  .hero{padding:40px 0;gap:26px;justify-content:center;text-align:center}
  .hero-text{display:flex;flex-direction:column;align-items:center}
  .stats{justify-content:center}
  .quest{flex-wrap:wrap}
  .topbar nav a{margin-left:12px;font-size:13px}
}