:root{
  --bg0:#f7f9ff;
  --bg1:#eef3ff;
  --card:#ffffffcc;
  --cardSolid:#ffffff;
  --text:#0f172a;
  --muted:#52617a;
  --muted2:#7a879c;
  --border:rgba(15, 23, 42, .10);
  --shadow:0 12px 30px rgba(16, 24, 40, .10);
  --shadow2:0 8px 18px rgba(16, 24, 40, .10);
  --radius:18px;
  --radius2:14px;
  --primary:#3b82f6;
  --primary2:#2563eb;
  --good:#16a34a;
  --warn:#f59e0b;
  --soft:#a78bfa;
  --soft2:#7c3aed;
  --danger:#ef4444;
  --focus: rgba(59,130,246,.28);
  --ring: 0 0 0 4px var(--focus);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--text);
  background:
    radial-gradient(1200px 800px at 20% 0%, rgba(59,130,246,.18), transparent 55%),
    radial-gradient(900px 600px at 90% 15%, rgba(167,139,250,.20), transparent 50%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x:hidden;
}

.bg-orbs{
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  filter:saturate(1.05);
}
.orb{
  position:absolute;
  width:520px;
  height:520px;
  border-radius:50%;
  background: radial-gradient(circle at 30% 30%, rgba(59,130,246,.22), rgba(59,130,246,.02) 60%, transparent 70%);
  mix-blend-mode: multiply;
}
.orb--1{left:-190px; top:-170px;}
.orb--2{
  right:-220px;
  top:40px;
  background: radial-gradient(circle at 30% 30%, rgba(167,139,250,.26), rgba(167,139,250,.03) 60%, transparent 70%);
}
.orb--3{
  left:15%;
  bottom:-280px;
  width:620px;
  height:620px;
  background: radial-gradient(circle at 30% 30%, rgba(16,185,129,.14), rgba(16,185,129,.03) 62%, transparent 72%);
}

.app{
  position:relative;
  z-index:1;
  min-height:100%;
}

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:22px clamp(16px, 3vw, 28px);
  max-width:1280px;
  margin:0 auto;
}
.brand{
  display:flex;
  gap:14px;
  align-items:center;
}
.brand__mark{
  width:44px;
  height:44px;
  border-radius:14px;
  background: linear-gradient(180deg, rgba(59,130,246,.18), rgba(167,139,250,.14));
  border:1px solid rgba(59,130,246,.22);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 10px 22px rgba(59,130,246,.14);
  position:relative;
  overflow:hidden;
}
.brand__dot{
  width:10px;height:10px;border-radius:999px;
  background: rgba(59,130,246,.95);
  box-shadow: 0 10px 16px rgba(59,130,246,.25);
  position:absolute;
}
.brand__dot:nth-child(1){transform: translate(-7px,-1px);}
.brand__dot--2{background: rgba(167,139,250,.95); transform: translate(6px,-5px);}
.brand__dot--3{background: rgba(16,185,129,.85); transform: translate(0px,7px);}
.brand__title{
  font-weight:750;
  letter-spacing:-.02em;
  font-size:15px;
}
.brand__subtitle{
  color:var(--muted);
  font-size:12.5px;
  margin-top:3px;
}

.topbar__actions{display:flex; gap:10px; align-items:center;}

.tabs{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:0 clamp(16px, 3vw, 28px) 12px;
  max-width:1280px;
  margin:0 auto;
  position:relative;
  z-index:1;
}
.tab{
  border-radius: 999px;
  border:1px solid rgba(15, 23, 42, .12);
  background: rgba(255,255,255,.55);
  color: rgba(37,99,235,.95);
  padding:11px 14px;
  font-weight:950;
  cursor:pointer;
  box-shadow:0 10px 20px rgba(16,24,40,.05);
}
.tab:focus{outline:none; box-shadow: var(--ring), 0 10px 20px rgba(16,24,40,.06);}
.tab.is-active{
  background: linear-gradient(180deg, rgba(59,130,246,.16), rgba(255,255,255,.72));
  border-color: rgba(59,130,246,.30);
  color: rgba(37,99,235,.98);
}

.tab-panel{display:none;}
.tab-panel.is-active{display:block; grid-column: span 12;}

.pill{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.55);
  backdrop-filter: blur(10px);
  box-shadow:0 8px 20px rgba(16,24,40,.06);
  font-size:12.5px;
}
.pill__label{color:var(--muted); font-weight:650;}
.pill__value{font-weight:800;}
.pill--soft{
  background: linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.50));
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.7);
  font-weight:700;
  font-size:12px;
}
.tag--good{border-color: rgba(22,163,74,.25); color: rgba(22,163,74,.95); background: rgba(22,163,74,.08);}
.tag--warn{border-color: rgba(245,158,11,.25); color: rgba(217,119,6,.95); background: rgba(245,158,11,.09);}
.tag--soft{border-color: rgba(167,139,250,.28); color: rgba(124,58,237,.95); background: rgba(167,139,250,.12);}
.tag--neutral{border-color: rgba(59,130,246,.22); color: rgba(37,99,235,.95); background: rgba(59,130,246,.09);}

.icon-btn{
  width:42px;
  height:42px;
  border-radius:14px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.55);
  color:var(--text);
  display:grid;
  place-items:center;
  box-shadow:0 10px 20px rgba(16,24,40,.06);
  cursor:default;
}
.icon-btn:focus{outline:none; box-shadow: var(--ring), 0 10px 20px rgba(16,24,40,.06);}
.icon-btn__glyph{font-weight:900; opacity:.85;}

.grid{
  max-width:1280px;
  padding:0 clamp(16px, 3vw, 28px) 28px;
  margin:0 auto;
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap:18px;
}

.card{
  grid-column: span 12;
  background: var(--card);
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  overflow:hidden;
}

.card--dashboard{grid-column: span 4;}
.card--quiz{grid-column: span 5;}
.card--weakness{grid-column: span 3;}

.card__head{
  padding:16px 18px;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
  border-bottom: 1px solid rgba(15, 23, 42, .07);
  background: linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,.25));
}
.card__title{
  font-weight:840;
  letter-spacing:-.02em;
  display:flex;
  gap:10px;
  align-items:center;
}
.card__emoji{filter:saturate(1.05);}
.card__meta{display:flex; align-items:center;}
.stack{padding:16px 18px 18px;}

.mini-stats{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:12px;
  margin-bottom:14px;
}
.stat{
  padding:12px 12px;
  border-radius: var(--radius2);
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.6);
}
.stat__label{font-size:12px; color:var(--muted); font-weight:700;}
.stat__value{font-size:18px; font-weight:880; letter-spacing:-.02em; margin-top:3px;}
.stat__bar{
  height:8px;
  background: rgba(59,130,246,.10);
  border-radius:999px;
  margin-top:10px;
  overflow:hidden;
}
.stat__barFill{
  display:block;
  height:100%;
  background: linear-gradient(90deg, rgba(59,130,246,.95), rgba(167,139,250,.85));
  border-radius:999px;
}
.stat__ring{
  width:54px;
  height:54px;
  border-radius:999px;
  background: conic-gradient(from 90deg, rgba(16,185,129,.95), rgba(59,130,246,.75));
  display:grid;
  place-items:center;
  margin-top:-8px;
}
.stat__ringInner{
  width:44px;height:44px;border-radius:999px;
  background: rgba(255,255,255,.8);
  border:1px solid rgba(15, 23, 42, .07);
  display:grid;
  place-items:center;
  font-weight:900;
  font-size:12px;
  color: rgba(15, 23, 42, .85);
}
.stat__hint{color:var(--muted2); font-size:12px; margin-top:3px; font-weight:650;}

.subhead{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:14px;
  margin-bottom:10px;
}
.subhead__title{
  font-weight:850;
  letter-spacing:-.02em;
  font-size:13px;
  color: rgba(15,23,42,.92);
}

.plan-box{
  border-radius: var(--radius2);
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.60);
  padding:12px 12px;
  box-shadow: var(--shadow2);
}
.plan-box__status{
  font-size:12.8px;
  font-weight:850;
  line-height:1.35;
}
.plan-box__text{
  margin-top:10px;
  white-space: pre-wrap;
  font-size:13.2px;
  font-weight:850;
  color: rgba(15,23,42,.86);
}

.link-btn{
  border:1px solid rgba(15, 23, 42, .10);
  background: rgba(255,255,255,.65);
  color: rgba(37,99,235,.95);
  border-radius: 12px;
  padding:9px 10px;
  font-weight:800;
  cursor:pointer;
}
.link-btn:focus{outline:none; box-shadow: var(--ring);}
.link-btn:active{transform: translateY(1px);}

.schedule{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.schedule__row{
  display:grid;
  grid-template-columns: 64px 1fr auto;
  gap:12px;
  align-items:center;
  padding:12px 12px;
  border-radius: var(--radius2);
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.62);
}
.schedule__row--active{
  border-color: rgba(59,130,246,.22);
  background: linear-gradient(180deg, rgba(59,130,246,.12), rgba(255,255,255,.62));
}
.schedule__time{font-weight:900; color: rgba(15,23,42,.80); font-size:13px;}
.schedule__title{font-weight:880; letter-spacing:-.02em;}
.schedule__desc{color:var(--muted2); font-size:12.5px; margin-top:3px; font-weight:650;}
.badge{
  display:inline-flex;
  align-items:center;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.7);
  font-weight:900;
  font-size:12px;
}
.badge--neutral{color: rgba(37,99,235,.95); background: rgba(59,130,246,.08); border-color: rgba(59,130,246,.20);}
.badge--good{color: rgba(22,163,74,.95); background: rgba(22,163,74,.08); border-color: rgba(22,163,74,.22);}
.badge--soft{color: rgba(124,58,237,.95); background: rgba(167,139,250,.12); border-color: rgba(167,139,250,.28);}

.reminders{display:flex; flex-direction:column; gap:10px; margin-top:2px;}
.reminder{
  padding:12px 12px;
  border-radius: var(--radius2);
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.6);
  display:flex;
  justify-content:space-between;
  gap:14px;
}
.reminder__left{display:flex; gap:12px; align-items:flex-start;}
.reminder__dot{width:12px;height:12px;border-radius:999px; margin-top:5px;}
.reminder__dot--warn{background: rgba(245,158,11,.95); box-shadow: 0 12px 18px rgba(245,158,11,.20);}
.reminder__dot--good{background: rgba(22,163,74,.95); box-shadow: 0 12px 18px rgba(22,163,74,.18);}
.reminder__dot--soft{background: rgba(167,139,250,.95); box-shadow: 0 12px 18px rgba(167,139,250,.18);}
.reminder__title{font-weight:880; letter-spacing:-.02em;}
.reminder__desc{color:var(--muted2); font-size:12.5px; margin-top:3px; font-weight:650;}
.reminder__right{display:flex; align-items:flex-end; flex-direction:column; gap:8px;}
.reminder__time{font-weight:900; font-size:13px; color: rgba(15,23,42,.78);}

/* Quiz */
.quiz-top{display:flex; align-items:flex-start; justify-content:space-between; gap:12px; margin-bottom:14px;}
.progress{
  width:100%;
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.62);
  border-radius: var(--radius2);
  padding:12px 12px;
}
.progress__label{font-size:12px; color:var(--muted); font-weight:800;}
.progress__bar{
  margin-top:10px;
  width:100%;
  height:10px;
  border-radius:999px;
  overflow:hidden;
  appearance:none;
  -webkit-appearance:none;
  background: transparent;
  border:0;
}
.progress__bar::-webkit-progress-bar{
  background: rgba(59,130,246,.10);
  border-radius:999px;
  border:1px solid rgba(15, 23, 42, .08);
}
.progress__bar::-webkit-progress-value{
  background: linear-gradient(90deg, rgba(59,130,246,.95), rgba(167,139,250,.85));
  border-radius:999px;
}
.progress__bar::-moz-progress-bar{
  background: linear-gradient(90deg, rgba(59,130,246,.95), rgba(167,139,250,.85));
  border-radius:999px;
}
.progress__fill{
  display:block;
  height:100%;
  background: linear-gradient(90deg, rgba(59,130,246,.95), rgba(167,139,250,.85));
  border-radius:999px;
}
.progress__meta{
  display:flex;
  justify-content:space-between;
  margin-top:9px;
  font-weight:900;
  font-size:12.5px;
}
.muted{color:var(--muted2); font-weight:800;}
.quiz-chip{
  min-width:160px;
  padding:12px 12px;
  border-radius: var(--radius2);
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.60);
}
.quiz-chip__k{font-size:12px; color:var(--muted); font-weight:850;}
.quiz-chip__v{margin-top:4px; font-weight:900; letter-spacing:-.02em;}

.question{
  border-radius: var(--radius2);
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.62);
  padding:14px 14px;
  box-shadow: var(--shadow2);
}
.question__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.question__pill{font-weight:900;}
.question__number{font-weight:950; color: rgba(15,23,42,.76); font-size:13px;}
.question__text{
  margin:12px 0 10px;
  font-size:18px;
  letter-spacing:-.02em;
}
.question__hint{
  background: rgba(59,130,246,.08);
  border:1px solid rgba(59,130,246,.18);
  padding:10px 11px;
  border-radius: 14px;
  color: rgba(37,99,235,.95);
  font-size:12.8px;
  font-weight:800;
  margin-bottom:14px;
}
.kbd{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:3px 8px;
  border-radius: 10px;
  background: rgba(255,255,255,.75);
  border:1px solid rgba(59,130,246,.22);
  box-shadow: 0 6px 14px rgba(59,130,246,.08);
  font-weight:900;
}
.choices{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:10px;
  margin-bottom:14px;
}
.choice-button{
  border-radius: 14px;
  border:1px solid rgba(15, 23, 42, .10);
  background: rgba(255,255,255,.70);
  padding:12px 12px;
  cursor:pointer;
  display:flex;
  gap:12px;
  align-items:center;
  justify-content:flex-start;
  transition: transform .08s ease, border-color .15s ease, box-shadow .15s ease;
}
.choice-button:hover{
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(16,24,40,.10);
}
.choice-button:focus{
  outline:none;
  box-shadow: var(--ring), 0 16px 30px rgba(16,24,40,.10);
}
.choice-button__key{
  width:32px;height:32px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background: rgba(59,130,246,.10);
  border:1px solid rgba(59,130,246,.18);
  font-weight:950;
  color: rgba(37,99,235,.95);
}
.choice-button__text{
  font-weight:900;
  letter-spacing:-.02em;
}
.choice-button.is-selected{
  border-color: rgba(59,130,246,.40);
  background: linear-gradient(180deg, rgba(59,130,246,.14), rgba(255,255,255,.75));
}
.choice-button.is-selected .choice-button__key{
  background: rgba(59,130,246,.18);
  border-color: rgba(59,130,246,.35);
}

.question__footer{
  display:flex;
  gap:12px;
  align-items:flex-end;
  justify-content:space-between;
  flex-wrap:wrap;
}
.quiz-end{margin-top:10px;}
.quiz-end__summary{margin-bottom:14px;}
.quiz-end__icon{
  width:44px;
  height:44px;
  border-radius:16px;
  background: rgba(167,139,250,.12);
  border:1px solid rgba(167,139,250,.22);
  color: rgba(124,58,237,.95);
  display:grid;
  place-items:center;
  font-weight:900;
}
.quiz-end__score{
  margin-top:6px;
  font-size:28px;
  font-weight:950;
  letter-spacing:-.03em;
}
.quiz-end__actions{justify-content:flex-end;}
.result-box{
  flex:1 1 260px;
  min-width:240px;
  padding:12px 12px;
  border-radius: 14px;
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.62);
  display:flex;
  gap:12px;
  align-items:flex-start;
}
.result-box__icon{
  width:34px;height:34px;border-radius:14px;
  display:grid;place-items:center;
  background: rgba(16,185,129,.10);
  border:1px solid rgba(16,185,129,.18);
  color: rgba(16,185,129,.95);
  font-weight:900;
}
.result-box__title{font-weight:950;}
.result-box__desc{font-size:12.8px; margin-top:4px; font-weight:800; color: var(--muted2);}

.question__actions{display:flex; gap:10px; align-items:center;}
.btn{
  border-radius: 14px;
  border:1px solid rgba(15, 23, 42, .10);
  padding:10px 12px;
  font-weight:950;
  cursor:pointer;
}
.btn:focus{outline:none; box-shadow: var(--ring);}
.btn:active{transform: translateY(1px);}
.btn[disabled]{opacity:.55; cursor:not-allowed;}
.btn--primary{
  background: linear-gradient(180deg, rgba(59,130,246,.95), rgba(37,99,235,.95));
  color:white;
  border-color: rgba(37,99,235,.40);
  box-shadow: 0 16px 30px rgba(37,99,235,.22);
}
.btn--soft{
  background: rgba(255,255,255,.65);
  color: rgba(37,99,235,.95);
}

.fineprint{
  margin-top:12px;
  color:var(--muted2);
  font-weight:800;
  font-size:12.5px;
}

/* Weakness */
.weak-top{
  display:flex;
  justify-content:space-between;
  gap:12px;
  align-items:flex-end;
  margin-bottom:12px;
}
.select{display:flex; flex-direction:column; gap:6px;}
.select__label{font-size:12px; color:var(--muted); font-weight:850;}
.select__control{
  border-radius:14px;
  border:1px solid rgba(15, 23, 42, .10);
  background: rgba(255,255,255,.70);
  padding:10px 12px;
  font-weight:900;
  color: rgba(15,23,42,.85);
}
.select__control:focus{outline:none; box-shadow: var(--ring);}

.weak-list{display:flex; flex-direction:column; gap:10px; margin-bottom:14px;}
.weak-row{
  border-radius: var(--radius2);
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.62);
  padding:12px 12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.weak-row__left{display:flex; gap:12px; align-items:center;}
.topic-dot{width:12px;height:12px;border-radius:999px;}
.topic-dot--a{background: rgba(59,130,246,.95); box-shadow: 0 12px 18px rgba(59,130,246,.18);}
.topic-dot--b{background: rgba(16,185,129,.95); box-shadow: 0 12px 18px rgba(16,185,129,.16);}
.topic-dot--c{background: rgba(167,139,250,.95); box-shadow: 0 12px 18px rgba(167,139,250,.16);}
.weak-row__topic{}
.weak-row__name{font-weight:950; letter-spacing:-.02em;}
.weak-row__sub{font-size:12.5px; margin-top:3px; font-weight:800;}
.weak-row__right{display:flex; flex-direction:column; align-items:flex-end; gap:8px;}
.weak-row__count{font-weight:950; color: rgba(15,23,42,.78); font-size:12.8px;}
.weak-row__bar{
  width:120px;
  height:10px;
  border-radius:999px;
  background: rgba(15,23,42,.06);
  overflow:hidden;
}
.weak-row__fill{
  display:block;
  height:100%;
  border-radius:999px;
  background: linear-gradient(90deg, rgba(59,130,246,.90), rgba(167,139,250,.85));
}

.pct-30{width:30%}
.pct-35{width:35%}
.pct-42{width:42%}
.pct-66{width:66%}
.pct-70{width:70%}

.mistakes-wrap{
  border-radius: var(--radius2);
  border:1px solid rgba(15, 23, 42, .08);
  background: rgba(255,255,255,.58);
  overflow:hidden;
}
.mistakes{
  width:100%;
  border-collapse:collapse;
}
.mistakes th, .mistakes td{
  padding:12px 12px;
  text-align:left;
  border-bottom:1px solid rgba(15, 23, 42, .06);
  font-weight:850;
  font-size:12.8px;
}
.mistakes th{
  color: rgba(15,23,42,.70);
  background: rgba(255,255,255,.55);
  font-weight:900;
}
.mistakes tr:last-child td{border-bottom:none;}

.chip{
  display:inline-flex;
  padding:7px 10px;
  border-radius:999px;
  border:1px solid rgba(15, 23, 42, .10);
  font-weight:950;
  font-size:12px;
}
.chip--good{background: rgba(16,185,129,.10); border-color: rgba(16,185,129,.18); color: rgba(16,185,129,.95);}
.chip--soft{background: rgba(167,139,250,.12); border-color: rgba(167,139,250,.22); color: rgba(124,58,237,.95);}
.chip--neutral{background: rgba(59,130,246,.10); border-color: rgba(59,130,246,.18); color: rgba(37,99,235,.95);}

.footer{
  max-width:1280px;
  margin:0 auto;
  padding:14px clamp(16px, 3vw, 28px) 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  color:var(--muted2);
  font-weight:850;
  font-size:12.5px;
}
.footer__kbd{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:34px;
  padding:7px 10px;
  border-radius: 12px;
  background: rgba(255,255,255,.6);
  border:1px solid rgba(15, 23, 42, .10);
  font-weight:950;
  color: rgba(15,23,42,.78);
}

@media (max-width: 1060px){
  .card--dashboard{grid-column: span 12;}
  .card--quiz{grid-column: span 12;}
  .card--weakness{grid-column: span 12;}
  .mini-stats{grid-template-columns: 1fr 1fr;}
  .quiz-top{flex-direction:column; align-items:stretch;}
  .quiz-chip{min-width:auto;}
}
@media (max-width: 520px){
  .mini-stats{grid-template-columns: 1fr;}
  .choices{grid-template-columns: 1fr;}
}