/* ══════════════════════════════════════════════════════════
   PRICING PSYCHOLOGY CALCULATOR — Design System
   Premium dark glassmorphism, OpenFluff brand
   ══════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #08080d; --bg2: #0f0f18; --bg3: #161622;
  --card: rgba(255,255,255,0.03); --card-hover: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.08); --border-hover: rgba(255,255,255,0.15);
  --text: #f0f0f5; --text2: #8888a0; --text3: #55556a;
  --green: #10B981; --green-bg: rgba(16,185,129,0.12);
  --amber: #F59E0B; --amber-bg: rgba(245,158,11,0.12);
  --purple: #8B5CF6; --purple-bg: rgba(139,92,246,0.12);
  --blue: #3B82F6; --red: #EF4444; --pink: #EC4899;
  --grad: linear-gradient(135deg, #10B981, #3B82F6, #8B5CF6);
  --font: 'Inter', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --radius: 16px; --radius-sm: 10px;
}
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Nav ─────────────────────────────────────────────────── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 14px 0; backdrop-filter: blur(20px) saturate(180%); background: rgba(8,8,13,0.85); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; }
.logo-icon { font-size: 1.4rem; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { font-size: 0.88rem; font-weight: 500; color: var(--text2); transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }
.nav-back { opacity: 0.5; font-size: 0.82rem !important; }

/* ── Hero ────────────────────────────────────────────────── */
.hero { min-height: 70vh; display: flex; align-items: center; text-align: center; padding: 140px 24px 80px; position: relative; overflow: hidden; }
.hero-glow { position: absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 800px; height: 500px; background: radial-gradient(ellipse, rgba(16,185,129,0.08),rgba(59,130,246,0.05),transparent 70%); pointer-events: none; }
.hero-content { position: relative; max-width: 720px; margin: 0 auto; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px 6px 6px; background: var(--green-bg); border: 1px solid rgba(16,185,129,0.2); border-radius: 100px; font-size: 0.8rem; font-weight: 500; color: var(--green); margin-bottom: 28px; }
.badge-dot { width: 8px; height: 8px; background: var(--green); border-radius: 50%; animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.4;transform:scale(0.7)} }
.hero h1 { font-size: clamp(2.4rem,5.5vw,4rem); font-weight: 900; line-height: 1.1; letter-spacing: -1.5px; }
.gradient-text { background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 1.15rem; color: var(--text2); max-width: 540px; margin: 20px auto 0; line-height: 1.7; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; margin-top: 36px; padding: 14px 32px; background: var(--grad); border: none; border-radius: 100px; font-size: 1rem; font-weight: 600; color: white; cursor: pointer; transition: all 0.3s; box-shadow: 0 4px 20px rgba(16,185,129,0.25); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(16,185,129,0.35); }
.btn-secondary { display: inline-flex; padding: 14px 28px; background: var(--card); border: 1px solid var(--border); border-radius: 100px; font-size: 0.95rem; font-weight: 500; color: var(--text2); cursor: pointer; transition: all 0.3s; }
.btn-secondary:hover { background: var(--card-hover); border-color: var(--border-hover); color: var(--text); }

/* ── Section ─────────────────────────────────────────────── */
.section { padding: 80px 0; }
.section-dark { background: var(--bg2); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-label { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 2px; color: var(--green); margin-bottom: 12px; }
.section-title { font-size: 2.2rem; font-weight: 800; letter-spacing: -0.8px; }
.section-sub { font-size: 1.05rem; color: var(--text2); max-width: 540px; margin: 12px auto 0; }

/* ── Calculator Layout ───────────────────────────────────── */
.calc-layout { display: grid; grid-template-columns: 420px 1fr; gap: 32px; align-items: start; }
.panel { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.panel-title { font-size: 1.3rem; font-weight: 800; margin-bottom: 4px; }
.panel-sub { font-size: 0.9rem; color: var(--text2); margin-bottom: 28px; }

/* ── Form ────────────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text2); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.form-group input, .form-group select {
  width: 100%; padding: 12px 16px; background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.95rem; font-family: var(--font); color: var(--text); outline: none; transition: border-color 0.3s;
}
.form-group input:focus, .form-group select:focus { border-color: var(--green); }
.form-group input::placeholder { color: var(--text3); }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg2); color: var(--text); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.btn-calculate {
  width: 100%; padding: 16px; margin-top: 8px;
  background: var(--grad); border: none; border-radius: var(--radius-sm);
  font-size: 1rem; font-weight: 700; color: white; cursor: pointer;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: all 0.3s; box-shadow: 0 4px 20px rgba(16,185,129,0.2);
}
.btn-calculate:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(16,185,129,0.3); }
.btn-icon { font-size: 1.2rem; }

/* ── Results ─────────────────────────────────────────────── */
.results-empty { text-align: center; padding: 80px 32px; }
.empty-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
.results-empty h3 { font-size: 1.1rem; font-weight: 600; color: var(--text2); margin-bottom: 8px; }
.results-empty p { font-size: 0.9rem; color: var(--text3); }
.results-content { display: flex; flex-direction: column; gap: 20px; }
.result-card { animation: fadeUp 0.5s ease-out both; }
.result-card:nth-child(2) { animation-delay: 0.1s; }
.result-card:nth-child(3) { animation-delay: 0.2s; }
.result-card:nth-child(4) { animation-delay: 0.3s; }
.result-card:nth-child(5) { animation-delay: 0.4s; }
@keyframes fadeUp { from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)} }
.result-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 16px; }

/* Score Card */
.score-header { display: flex; align-items: center; justify-content: space-between; }
.score-label { font-size: 0.85rem; color: var(--text2); }
.score-circle { position: relative; width: 80px; height: 80px; }
.score-circle svg { transform: rotate(-90deg); width: 100%; height: 100%; }
.score-bg { fill: none; stroke: rgba(255,255,255,0.06); stroke-width: 8; }
.score-fill { fill: none; stroke: var(--green); stroke-width: 8; stroke-linecap: round; stroke-dasharray: 264; stroke-dashoffset: 264; transition: stroke-dashoffset 1.5s ease-out, stroke 0.3s; }
.score-value { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 800; font-family: var(--mono); }

/* Price Grid */
.price-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.price-option { background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 20px; text-align: center; transition: all 0.3s; }
.price-option:hover { border-color: var(--border-hover); background: var(--card-hover); }
.price-option.recommended { border-color: rgba(16,185,129,0.4); background: var(--green-bg); }
.price-option .price-label { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--text3); margin-bottom: 6px; }
.price-option .price-amount { font-size: 1.6rem; font-weight: 800; font-family: var(--mono); }
.price-option .price-reason { font-size: 0.78rem; color: var(--text2); margin-top: 8px; line-height: 1.5; }
.price-option.recommended .price-label { color: var(--green); }
.rec-badge { display: inline-block; padding: 2px 8px; background: var(--green); color: var(--bg); font-size: 0.65rem; font-weight: 700; border-radius: 100px; margin-bottom: 8px; text-transform: uppercase; letter-spacing: 1px; }

/* Tactics */
.tactics-list { display: flex; flex-direction: column; gap: 12px; }
.tactic { display: flex; gap: 14px; padding: 16px; background: rgba(255,255,255,0.02); border-radius: var(--radius-sm); border: 1px solid var(--border); }
.tactic-icon { font-size: 1.4rem; flex-shrink: 0; width: 36px; text-align: center; }
.tactic-content h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; }
.tactic-content p { font-size: 0.82rem; color: var(--text2); line-height: 1.6; }

/* Tier Grid */
.tier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.tier { padding: 20px; background: rgba(255,255,255,0.02); border: 1px solid var(--border); border-radius: var(--radius-sm); text-align: center; transition: all 0.3s; }
.tier.featured { border-color: rgba(16,185,129,0.4); background: var(--green-bg); transform: scale(1.03); }
.tier-name { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--text3); margin-bottom: 8px; }
.tier.featured .tier-name { color: var(--green); }
.tier-price { font-size: 1.4rem; font-weight: 800; font-family: var(--mono); margin-bottom: 12px; }
.tier-features { list-style: none; font-size: 0.78rem; color: var(--text2); text-align: left; }
.tier-features li { padding: 4px 0; display: flex; align-items: center; gap: 6px; }
.tier-features li::before { content: '✓'; color: var(--green); font-weight: 700; font-size: 0.7rem; }

/* A/B Tests */
.ab-list { display: flex; flex-direction: column; gap: 10px; }
.ab-item { padding: 14px 16px; background: rgba(255,255,255,0.02); border: 1px solid var(--border); border-radius: var(--radius-sm); display: flex; align-items: center; gap: 12px; }
.ab-badge { font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; padding: 3px 10px; border-radius: 100px; flex-shrink: 0; }
.ab-badge.high { background: var(--green-bg); color: var(--green); }
.ab-badge.medium { background: var(--amber-bg); color: var(--amber); }
.ab-text { font-size: 0.85rem; color: var(--text2); }

/* ── Strategy Cards ──────────────────────────────────────── */
.strat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 20px; }
.strat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: all 0.3s; }
.strat-card:hover { background: var(--card-hover); border-color: var(--border-hover); transform: translateY(-2px); }
.strat-icon { font-size: 2rem; margin-bottom: 16px; }
.strat-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.strat-card p { font-size: 0.88rem; color: var(--text2); line-height: 1.7; }
.strat-example { margin-top: 14px; padding: 10px 14px; background: rgba(255,255,255,0.03); border-radius: var(--radius-sm); font-size: 0.78rem; color: var(--green); font-family: var(--mono); font-weight: 500; }

/* ── Embed ───────────────────────────────────────────────── */
.embed-box { max-width: 700px; margin: 0 auto; text-align: center; }
.embed-code { display: block; padding: 20px; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius-sm); font-family: var(--mono); font-size: 0.8rem; color: var(--green); word-break: break-all; margin-bottom: 16px; text-align: left; }
.btn-copy { padding: 12px 24px; background: var(--card); border: 1px solid var(--border); border-radius: 100px; font-size: 0.9rem; font-weight: 600; color: var(--text); cursor: pointer; transition: all 0.3s; }
.btn-copy:hover { background: var(--card-hover); border-color: var(--border-hover); }

/* ── CTA ─────────────────────────────────────────────────── */
.cta-section { text-align: center; }
.cta-box { max-width: 520px; margin: 0 auto; padding: 56px 40px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); }
.cta-box h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.cta-box p { color: var(--text2); margin-bottom: 28px; }
.cta-actions { display: flex; gap: 12px; justify-content: center; }
.ghl-form { display: flex; flex-direction: column; gap: 12px; max-width: 420px; margin: 0 auto; }
.ghl-input { width: 100%; padding: 14px 20px; background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 0.95rem; color: var(--text); font-family: var(--font); outline: none; transition: border-color 0.3s, background 0.3s; }
.ghl-input:focus { border-color: var(--green); background: rgba(255,255,255,0.06); }
.ghl-input::placeholder { color: var(--text3); }
.ghl-submit { margin-top: 4px; width: 100%; display: flex; align-items: center; justify-content: center; }
.ghl-consent { font-size: 0.72rem !important; color: var(--text3) !important; line-height: 1.5; margin-bottom: 0 !important; margin-top: 4px; }
.ghl-consent strong { color: var(--text2); }
.ghl-success { padding: 16px 24px; background: var(--green-bg); border: 1px solid rgba(16,185,129,0.3); border-radius: var(--radius-sm); color: var(--green); font-weight: 600; font-size: 0.95rem; text-align: center; }
.ghl-error { padding: 12px 20px; background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); border-radius: var(--radius-sm); color: #EF4444; font-size: 0.85rem; text-align: center; }

/* ── Footer ──────────────────────────────────────────────── */
.footer { padding: 40px 0; border-top: 1px solid var(--border); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; font-size: 0.85rem; color: var(--text3); }
.footer-built { font-family: var(--mono); font-size: 0.78rem; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .calc-layout { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .tier-grid { grid-template-columns: 1fr; }
  .strat-grid { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-actions { flex-direction: column; }
}