:root{
  --bg:#FAFAFF;
  --surface:#FFFFFF;
  --surface-2:#F1EEFF;
  --ink:#241E38;
  --muted:#726F91;
  --line:rgba(36,30,56,0.12);

  --green:#58CC02;
  --green-dark:#46A302;
  --purple:#8B5CF6;
  --purple-dark:#6D28D9;
  --orange:#FF9600;
  --red:#FF4B4B;
}
*{box-sizing:border-box;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Inter',sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased;}
h1,h2,h3{font-family:'Sora',sans-serif;margin:0 0 12px;letter-spacing:-0.01em;color:var(--ink);}
p{margin:0 0 8px;}
a{color:inherit;}
button{font-family:inherit;}
.pd-mono{font-family:'IBM Plex Mono',monospace;}
.pd-container{max-width:720px;margin:0 auto;padding:0 24px;}
.pd-muted{color:var(--muted);}
:focus-visible{outline:2px solid var(--purple);outline-offset:3px;}

/* ---------- Nav ---------- */
.pd-nav{border-bottom:2px solid var(--line);background:var(--surface);}
.pd-nav__inner{max-width:720px;margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.pd-logo{font-family:'Sora',sans-serif;font-weight:800;font-size:1.15rem;text-decoration:none;color:var(--ink);}
.pd-logo span{color:var(--green-dark);}
.pd-nav__links{display:flex;gap:20px;font-size:0.9rem;font-weight:600;}
.pd-nav__links a{text-decoration:none;color:var(--muted);}
.pd-nav__links a:hover{color:var(--purple-dark);}
.pd-nav__stats{display:flex;align-items:center;gap:10px;}

/* ---------- Buttons & chips ---------- */
.pd-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:14px;border:none;font-weight:700;font-size:0.9rem;cursor:pointer;text-decoration:none;transition:transform .08s ease, filter .15s ease, box-shadow .08s ease;}
.pd-btn--primary{background:var(--green);color:#fff;box-shadow:0 4px 0 var(--green-dark);}
.pd-btn--primary:hover{filter:brightness(1.04);}
.pd-btn--primary:active{transform:translateY(3px);box-shadow:0 1px 0 var(--green-dark);}
.pd-btn--outline{background:var(--surface);color:var(--purple-dark);border:2px solid var(--purple);box-shadow:0 4px 0 rgba(139,92,246,0.28);}
.pd-btn--outline:hover{filter:brightness(1.02);}
.pd-btn--outline:active{transform:translateY(3px);box-shadow:0 1px 0 rgba(139,92,246,0.28);}
.pd-btn--ghost{background:#FFF3E0;color:#B85C00;border:2px solid var(--orange);}
.pd-btn[disabled]{cursor:not-allowed;opacity:0.55;transform:none;}

.pd-chips{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 30px;}
.pd-chip{padding:10px 18px;border-radius:999px;border:2px solid var(--line);background:var(--surface);color:var(--ink);font-weight:700;font-size:0.88rem;cursor:pointer;text-decoration:none;transition:border-color .15s ease, background .15s ease;}
.pd-chip:hover{border-color:var(--purple);background:var(--surface-2);}

/* ---------- Candidate slip ---------- */
.pd-slip{background:var(--surface);color:var(--ink);border-radius:16px;padding:20px 20px 16px;box-shadow:0 10px 26px rgba(139,92,246,0.14);position:relative;border:2px solid var(--line);overflow:hidden;}
.pd-slip::before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:linear-gradient(90deg,var(--green),var(--purple));}
.pd-slip__top{display:flex;align-items:center;gap:12px;margin-bottom:10px;margin-top:6px;}
.pd-slip__photo{width:44px;height:44px;border-radius:10px;background:#EAF9DC;display:flex;align-items:center;justify-content:center;font-size:1.3rem;border:1px solid rgba(88,204,2,0.3);flex-shrink:0;}
.pd-slip__id{display:flex;flex-direction:column;flex:1;min-width:0;}
.pd-slip__name{font-weight:700;font-size:0.98rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--ink);}
.pd-slip__no{font-size:0.7rem;color:var(--muted);}
.pd-slip__rank{font-weight:700;font-size:0.85rem;background:var(--purple);color:#fff;padding:3px 9px;border-radius:999px;flex-shrink:0;}
.pd-slip__combo{font-size:0.8rem;color:var(--muted);border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);padding:8px 0;margin-bottom:10px;}
.pd-slip__stats{display:flex;gap:8px;font-family:'IBM Plex Mono',monospace;font-size:0.82rem;font-weight:700;margin-bottom:10px;}
.pd-slip__stats span{padding:4px 10px;border-radius:999px;}
.pd-slip__stats span:nth-child(1){background:#FFF3E0;color:#B85C00;}
.pd-slip__stats span:nth-child(2){background:#EAF9DC;color:#2F7A00;}
.pd-slip__barcode{height:10px;border-radius:2px;opacity:0.35;background:repeating-linear-gradient(90deg,var(--purple) 0 2px,transparent 2px 5px,var(--purple) 5px 6px,transparent 6px 9px);}
.pd-slip--row{border-radius:12px;padding:16px 18px 14px;}
.pd-slip--you{outline:3px solid var(--green);outline-offset:1px;}
.pd-board{display:grid;gap:12px;}

/* ---------- Hero (landing) ---------- */
.pd-hero-simple{padding:40px 0 20px;}
.pd-eyebrow{font-family:'IBM Plex Mono',monospace;font-size:0.75rem;letter-spacing:0.08em;color:var(--purple-dark);margin-bottom:14px;font-weight:700;}
.pd-hero-simple h1{font-size:2.2rem;line-height:1.12;margin-bottom:14px;}
.pd-hero__sub{color:var(--muted);max-width:52ch;margin-bottom:22px;}
.pd-hero__cta{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- Quiz card ---------- */
.pd-quiz{background:var(--surface);border:2px solid var(--line);border-radius:20px;padding:24px;max-width:640px;box-shadow:0 10px 26px rgba(139,92,246,0.10);}
.pd-quiz__status{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.pd-quiz__progress{display:flex;gap:6px;}
.pd-dot{width:9px;height:9px;border-radius:50%;background:var(--line);display:inline-block;}
.pd-dot--done{background:var(--green);}
.pd-dot--active{background:var(--purple);}
.pd-quiz__timelabel{color:var(--muted);font-size:0.85rem;font-weight:600;}
.pd-timerbar{height:6px;border-radius:999px;background:var(--surface-2);overflow:hidden;margin-bottom:18px;}
.pd-timerbar__fill{height:100%;width:100%;background:var(--green);border-radius:999px;transform-origin:left;animation-name:pd-timer-shrink;animation-timing-function:linear;animation-fill-mode:forwards;}
@keyframes pd-timer-shrink{
  0%{width:100%;background:var(--green);}
  60%{background:var(--orange);}
  100%{width:0%;background:var(--red);}
}
.pd-quiz__q{font-size:1.15rem;font-weight:700;margin-bottom:20px;color:var(--ink);}

.pd-omr{display:grid;gap:12px;}
.pd-omr__option{display:flex;align-items:center;gap:14px;text-align:left;width:100%;background:var(--surface);border:2px solid var(--line);border-radius:12px;padding:13px 16px;color:var(--ink);font-size:0.96rem;font-weight:600;cursor:pointer;transition:border-color .15s ease, background .15s ease;}
.pd-omr__option:hover{border-color:var(--purple);background:var(--surface-2);}
.pd-omr__bubble{width:26px;height:26px;flex-shrink:0;border-radius:50%;border:2px solid var(--muted);display:flex;align-items:center;justify-content:center;font-family:'IBM Plex Mono',monospace;font-size:0.78rem;font-weight:700;color:var(--muted);}
.pd-omr__option--correct{border-color:var(--green);background:#EAF9DC;}
.pd-omr__option--correct .pd-omr__bubble{background:var(--green);border-color:var(--green);color:#fff;}
.pd-omr__option--wrong{border-color:var(--red);background:#FFF0F0;}
.pd-omr__option--wrong .pd-omr__bubble{background:var(--red);border-color:var(--red);color:#fff;}

/* ---------- Forms ---------- */
.pd-form{display:flex;flex-direction:column;gap:14px;max-width:360px;}
.pd-form--inline{flex-direction:row;max-width:420px;}
.pd-form input{background:var(--surface);border:2px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--ink);font-size:0.95rem;flex:1;}
.pd-form input:focus{border-color:var(--purple);outline:none;}
.pd-flash{background:#FFF0F0;border:2px solid #FFC9C9;color:#B42318;border-radius:10px;padding:12px 16px;margin-bottom:20px;font-size:0.9rem;font-weight:600;}

/* ---------- Reveal card (CSS-only tap-to-reveal, no JS/canvas) ---------- */
.pd-reveal-inline{width:100%;max-width:340px;margin:20px auto;}
.pd-reveal-stage{position:relative;}
.pd-reveal__content{background:var(--surface);color:var(--ink);border-radius:20px;padding:32px 24px;text-align:center;box-shadow:0 14px 34px rgba(139,92,246,0.20);border:2px solid var(--line);}
.pd-reveal__eyebrow{font-family:'IBM Plex Mono',monospace;font-size:0.7rem;letter-spacing:0.1em;color:var(--muted);margin-bottom:8px;font-weight:700;}
.pd-reveal__score{font-family:'Sora',sans-serif;font-size:2.2rem;font-weight:800;margin-bottom:4px;color:var(--ink);}
.pd-reveal__grade{font-weight:700;color:var(--green-dark);margin-bottom:8px;}
.pd-reveal__detail{font-size:0.86rem;color:var(--muted);margin-bottom:0;}

.pd-reveal-toggle{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden;}
.pd-reveal__foil{
  position:absolute;inset:0;border-radius:20px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-family:'IBM Plex Mono',monospace;font-size:0.85rem;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--purple),#B490FF 50%,var(--green));
  transition:opacity .5s ease, transform .5s ease;
}
.pd-reveal-toggle:checked ~ .pd-reveal-stage .pd-reveal__foil{opacity:0;transform:scale(1.06);pointer-events:none;}
.pd-reveal-toggle:focus-visible ~ .pd-reveal-stage .pd-reveal__foil{outline:2px solid var(--purple-dark);outline-offset:3px;}

@media (max-width:600px){
  .pd-nav__links{display:none;}
  .pd-hero-simple h1{font-size:1.8rem;}
  .pd-form--inline{flex-direction:column;}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
}