:root {
  --bg: #0b0e14;
  --surface: #131722;
  --surface-2: #181d2a;
  --border: #232838;
  --ink: #f2f4f8;
  --ink-soft: #8b93a7;
  --accent: #3ddc97;
  --accent-bright: #5cf0af;
  --on-accent: #04140d;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
html, body { margin: 0; color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; line-height: 1.6; overflow-x: hidden; }

h1, h2, h3 { margin: 0; color: #fff; }
a { color: inherit; }

.nav { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; padding: 1.1rem 1.5rem; background: rgba(11, 14, 20, 0.9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
.wordmark { font-weight: 800; letter-spacing: 0.08em; color: var(--accent-bright); }
.nav-cta { border: 1px solid var(--accent); padding: 0.5rem 1.1rem; border-radius: 6px; font-size: 0.85rem; font-weight: 600; text-decoration: none; color: var(--accent-bright); }
.nav-cta:hover { background: var(--accent); color: var(--on-accent); }

.hero { max-width: 720px; margin: 0 auto; padding: 5rem 1.5rem 4rem; text-align: center; }
.eyebrow { display: block; text-transform: uppercase; letter-spacing: 0.2em; font-size: 0.72rem; color: var(--accent-bright); font-weight: 700; margin-bottom: 0.8rem; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.1; margin-bottom: 1rem; }
.hero .lede { color: var(--ink-soft); font-size: 1.05rem; max-width: 55ch; margin: 0 auto 1.8rem; }
.hero-ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.btn { display: inline-block; padding: 0.85rem 1.7rem; border-radius: 8px; font-weight: 700; font-size: 0.9rem; text-decoration: none; border: none; cursor: pointer; font-family: inherit; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-bright); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--ink); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent-bright); }

.section { max-width: 1000px; margin: 0 auto; padding: 4rem 1.5rem; }
.section.tight { padding-top: 0; }
.section-heading { text-align: center; margin-bottom: 2.5rem; }
.section-heading h2 { font-size: 1.7rem; margin-top: 0.3rem; }
.section-heading p { color: var(--ink-soft); margin-top: 0.6rem; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.1rem; }
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 1.4rem; }
.feature-card h3 { font-size: 1.02rem; margin-bottom: 0.5rem; color: var(--accent-bright); }
.feature-card p { color: var(--ink-soft); font-size: 0.9rem; margin: 0; }

.quiz-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 2rem; max-width: 520px; margin: 0 auto; }
.quiz-step { display: none; }
.quiz-step.active { display: block; }
.quiz-q { font-weight: 700; font-size: 1.05rem; margin: 0 0 1.2rem; text-align: center; }
.quiz-options { display: flex; flex-direction: column; gap: 0.7rem; }
.quiz-opt { background: var(--surface-2); border: 1px solid var(--border); color: var(--ink); padding: 0.85rem 1rem; border-radius: 8px; font-size: 0.92rem; cursor: pointer; text-align: left; font-family: inherit; }
.quiz-opt:hover { border-color: var(--accent); color: var(--accent-bright); }

.quiz-result { max-width: 520px; margin: 1.5rem auto 0; background: var(--surface); border: 1px solid var(--accent); border-radius: 12px; padding: 2rem; text-align: center; }
.quiz-result.hidden { display: none; }
.quiz-result h3 { font-size: 1.4rem; margin: 0.3rem 0 0.8rem; }
.quiz-result p { color: var(--ink-soft); margin-bottom: 1.2rem; }

.tiers-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.2rem; }
.tier-card { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.8rem; }
.tier-card.featured { border-color: var(--accent); }
.tier-badge { position: absolute; top: -12px; right: 1.2rem; background: var(--accent); color: var(--on-accent); font-size: 0.68rem; font-weight: 800; padding: 0.25rem 0.7rem; border-radius: 999px; text-transform: uppercase; }
.tier-card h3 { font-size: 1.2rem; }
.tier-for { color: var(--ink-soft); font-size: 0.85rem; margin: 0.3rem 0 1.2rem; }
.tier-card ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.tier-card li { font-size: 0.88rem; color: var(--ink-soft); padding-left: 1.3rem; position: relative; }
.tier-card li::before { content: "✓"; position: absolute; left: 0; color: var(--accent-bright); font-weight: 800; }

.signup-section { text-align: center; }
.signup-form { display: flex; flex-direction: column; gap: 1rem; max-width: 420px; margin: 0 auto; }
.signup-form label { display: flex; flex-direction: column; gap: 0.4rem; text-align: left; font-size: 0.85rem; color: var(--ink-soft); }
.signup-form input { font-family: inherit; font-size: 1rem; padding: 0.7rem 0.9rem; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--ink); }
.signup-form input:focus { outline: none; border-color: var(--accent); }
.hint { color: var(--accent-bright); font-size: 0.88rem; min-height: 1.2em; }

.footer { text-align: center; padding: 2rem 1.5rem; color: var(--ink-soft); font-size: 0.85rem; border-top: 1px solid var(--border); }
.footer a { color: var(--accent-bright); text-decoration: none; font-weight: 600; }