*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0a0a0a;
  --bg-card:   #141414;
  --bg-input:  #1a1a1a;
  --border:    #222;
  --accent:    #ff2d55;
  --green:     #00c853;
  --text:      #fff;
  --muted:     #888;
  --radius:    14px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Nav ── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  max-width: 900px;
  margin: 0 auto;
}
.nav-logo { font-weight: 800; font-size: 18px; color: var(--text); text-decoration: none; }
.nav-logo span { color: var(--accent); }
.nav-cta {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: opacity .15s;
}
.nav-cta:hover { opacity: .85; }

/* ── Hero ── */
.hero {
  text-align: center;
  padding: 64px 24px 40px;
  max-width: 700px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,45,85,.12);
  border: 1px solid rgba(255,45,85,.25);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .03em;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}
.hero h1 .highlight { color: var(--accent); }
.hero p {
  font-size: 17px;
  color: var(--muted);
  max-width: 520px;
  margin: 0 auto 12px;
}

/* ── Calculator card ── */
.calc-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

.calc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.calc-body { padding: 32px; }

.step-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.step-question {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}
.input-row { margin-bottom: 32px; }

/* Range slider */
.slider-wrap { position: relative; padding-bottom: 6px; }
input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 0 4px rgba(255,45,85,.2);
}
input[type=range]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}
.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--muted);
  margin-top: 8px;
}
.slider-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
}
.slider-value span { color: var(--accent); }

/* Niche chips */
.niche-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.niche-chip {
  background: var(--bg-input);
  border: 1.5px solid var(--border);
  border-radius: 20px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all .15s;
  user-select: none;
}
.niche-chip:hover { border-color: var(--accent); color: var(--text); }
.niche-chip.active {
  border-color: var(--accent);
  background: rgba(255,45,85,.12);
  color: var(--text);
}

/* Divider */
.calc-divider { height: 1px; background: var(--border); margin: 0 32px; }

/* Result panel */
.result-panel {
  padding: 32px;
  background: linear-gradient(135deg, rgba(255,45,85,.08), rgba(255,45,85,.02));
}
.result-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.result-amount {
  font-size: clamp(42px, 8vw, 64px);
  font-weight: 900;
  color: var(--green);
  letter-spacing: -.03em;
  line-height: 1;
  margin-bottom: 6px;
  transition: all .3s;
}
.result-sub {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 24px;
}
.result-sub strong { color: var(--text); }

.result-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 28px;
}
.breakdown-item {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  text-align: center;
}
.breakdown-num {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 2px;
}
.breakdown-desc { font-size: 11px; color: var(--muted); line-height: 1.3; }

.cta-btn {
  display: block;
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 16px;
  font-size: 17px;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  letter-spacing: -.01em;
  transition: opacity .15s, transform .1s;
}
.cta-btn:hover { opacity: .9; transform: translateY(-1px); }
.cta-btn:active { transform: translateY(0); }
.cta-sub {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  margin-top: 10px;
}

/* ── Social proof strip ── */
.proof-strip {
  max-width: 720px;
  margin: 0 auto 64px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}
.proof-item { text-align: center; }
.proof-num { font-size: 26px; font-weight: 900; color: var(--text); }
.proof-desc { font-size: 12px; color: var(--muted); }

/* ── FAQ ── */
.faq-section {
  max-width: 720px;
  margin: 0 auto 80px;
  padding: 0 20px;
}
.faq-title {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 24px;
  text-align: center;
}
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
.faq-q {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-q::after { content: '+'; color: var(--accent); font-size: 20px; font-weight: 300; }
.faq-a { font-size: 14px; color: var(--muted); line-height: 1.7; display: none; }
.faq-item.open .faq-q::after { content: '−'; }
.faq-item.open .faq-a { display: block; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--muted);
  max-width: 900px;
  margin: 0 auto;
}
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--text); }

@media (max-width: 520px) {
  .result-breakdown { grid-template-columns: 1fr 1fr; }
  .proof-strip { gap: 20px; }
  .calc-body, .result-panel { padding: 24px; }
  .calc-divider { margin: 0 24px; }
}