:root {
  --color-primary: #1A1A2E;
  --color-accent: #E94560;
  --color-bg: #F8F9FA;
  --color-white: #FFFFFF;
  --color-text: #2D2D2D;
  --color-text-light: #6B7280;
  --color-border: #E5E7EB;
  --color-success: #2ECC71;
  --font-primary: 'Inter', sans-serif;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font-primary);
  color: var(--color-text);
  background: linear-gradient(160deg, #f9fafb 0%, #eef2ff 35%, #f8f9fa 100%);
}

.container {
  width: min(100% - 2rem, 860px);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.9rem 0;
  flex-wrap: wrap;
}

.logo {
  text-decoration: none;
  font-weight: 800;
  color: var(--color-primary);
}

.nav-link,
.site-footer a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
}

.section {
  display: none;
  padding: 2rem 0;
}

.section.active {
  display: block;
  animation: fadeUp 250ms ease;
}

.hero-card,
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 1.25rem;
}

.hero-card {
  text-align: center;
  background: radial-gradient(circle at top right, rgba(233, 69, 96, 0.12), transparent 50%), var(--color-white);
}

h1 { font-size: clamp(1.8rem, 6vw, 2.8rem); margin: 0 0 0.75rem; color: var(--color-primary); }
h2, h3 { margin-top: 0; color: var(--color-primary); }
.subhead { font-size: 1.06rem; margin: 0 0 0.6rem; }
.social-proof,
.muted,
.fine-print { color: var(--color-text-light); }
.fine-print { font-size: 0.875rem; margin-bottom: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.82rem 1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: transform .2s ease, opacity .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:disabled { cursor: not-allowed; opacity: .55; transform: none; }
.btn-primary { background: var(--color-accent); color: var(--color-white); box-shadow: 0 8px 20px rgba(233, 69, 96, .22); }
.btn-secondary { background: var(--color-white); color: var(--color-primary); border-color: var(--color-border); }

.progress-wrap { margin: 1rem 0 1.35rem; }
.progress-meta { display: flex; justify-content: space-between; font-size: 0.9rem; margin-bottom: 0.45rem; }
.progress-track { height: 10px; border-radius: 999px; background: #e9edf3; overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); transition: width .2s ease; }

fieldset {
  margin: 0 0 1rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}
legend { padding: 0 0.35rem; font-weight: 600; line-height: 1.4; }
.option-grid { display: grid; gap: 0.55rem; margin-top: 0.55rem; }
.option-grid input[type='radio'] { position: absolute; opacity: 0; pointer-events: none; }
.option-grid label {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.7rem 0.75rem;
  background: #fff;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.option-grid label:hover { border-color: var(--color-accent); transform: translateY(-1px); }
.option-grid input[type='radio']:checked + label {
  border-color: var(--color-accent);
  background: rgba(233, 69, 96, .08);
}

.field-wrap { display: grid; gap: .35rem; margin-bottom: 0.9rem; }
.field-wrap input,
.field-wrap select {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.72rem;
  font: inherit;
  width: 100%;
}
.field-wrap input:invalid:focus,
.field-wrap select:invalid:focus { border-color: #E74C3C; }

.score-wrap {
  display: grid;
  justify-items: center;
  gap: 0.5rem;
  margin: 1rem 0 1.2rem;
  transition: filter 320ms ease;
}
.score-blurred { filter: blur(8px); }

.score-ring { position: relative; width: 170px; height: 170px; }
.ring-svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg,
.ring-progress { fill: none; stroke-width: 10; }
.ring-bg { stroke: #e7ecf2; }
.ring-progress {
  stroke: var(--color-accent);
  stroke-linecap: round;
  stroke-dasharray: 326.73;
  stroke-dashoffset: 326.73;
  transition: stroke-dashoffset 700ms ease;
}
.score-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
}
.score-number { margin: 0; font-size: 2.2rem; font-weight: 800; line-height: 1; }
.score-max { margin: 0.2rem 0 0; color: var(--color-text-light); }
.tier-label { font-size: 1.2rem; font-weight: 700; margin: 0; }
.tier-badge {
  display: inline-block;
  margin-bottom: .5rem;
  border-radius: 999px;
  padding: .35rem .65rem;
  color: #fff;
  font-weight: 700;
  font-size: .9rem;
}

.plan-block ul { margin: .4rem 0 1.1rem 1.1rem; padding: 0; display: grid; gap: .5rem; }
.cta-block { border-top: 1px solid var(--color-border); padding-top: 1rem; display: grid; gap: .7rem; }

.site-footer {
  margin-top: 1rem;
  border-top: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text-light);
  font-size: 0.93rem;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 768px) {
  .hero-card,
  .card { padding: 1.8rem; }
  .option-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}