@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --primary: #7438e8;
  --primary-dark: #51209f;
  --primary-soft: #f0e8ff;
  --ink: #202033;
  --muted: #77778d;
  --paper: #f5f4fb;
  --line: #ece9f4;
  --shadow: 0 8px 28px rgba(52,34,95,.07);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  min-height: 100vh;
}
.app-nav {
  background: #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 3px 18px #30205008;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 13px;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(135deg,#9658ff,#6525d9);
}
.hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  padding: clamp(27px,4vw,48px);
  border-radius: 25px;
  background: linear-gradient(115deg,#51209f,#7937e9 65%,#a65aff);
  box-shadow: 0 12px 35px #7137d526;
}
.hero h1 {
  font-size: clamp(2rem,4vw,3.25rem);
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.12;
}
.hero p { color: #eee5ff; line-height: 1.75; }
.stat-card,.panel,.quiz-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
}
.stat-card {
  padding: 18px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 13px;
}
.stat-icon {
  width: 47px;
  height: 47px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
}
.section-title { font-weight: 800; letter-spacing: -.7px; }
.quiz-card {
  padding: 17px;
  height: 100%;
  transition: transform .2s, box-shadow .2s;
}
.quiz-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 38px #51209f16;
}
.quiz-icon {
  height: 125px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  margin-bottom: 17px;
  color: var(--primary);
  font-size: 2.6rem;
  background: linear-gradient(135deg,#f1eaff,#faf7ff);
}
.pill {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 30px;
  color: var(--primary);
  background: var(--primary-soft);
  font-size: .7rem;
  font-weight: 750;
}
.muted { color: var(--muted); }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}
.form-control,.form-select {
  border: 1px solid #e4dfef;
  border-radius: 12px;
  padding: 11px 14px;
}
.form-control:focus,.form-select:focus {
  border-color: #a681f1;
  box-shadow: 0 0 0 .2rem #7438e81a;
}
.app-footer {
  padding: 24px 0;
  margin-top: 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .85rem;
}
@media(max-width:767px) {
  .hero { border-radius: 20px; }
  .stat-card { padding: 13px; gap: 9px; }
  .stat-icon { width: 39px; height: 39px; }
  .quiz-card { padding: 14px; }
}