/* BetYield — design system */
:root {
  --bg: #06080c;
  --bg-2: #0a0e14;
  --surface: #0f141c;
  --surface-2: #151b26;
  --surface-3: #1b2331;
  --line: rgba(255, 255, 255, 0.07);
  --line-2: rgba(255, 255, 255, 0.12);
  --text: #e9eef6;
  --text-2: #b4bdcc;
  --muted: #7d889b;

  --arb: #2ee6a6;
  --arb-2: #16b884;
  --arb-soft: rgba(46, 230, 166, 0.12);
  --ev: #9a8cff;
  --ev-2: #6f5cf6;
  --ev-soft: rgba(154, 140, 255, 0.13);
  --neg: #ff6b7a;
  --neg-soft: rgba(255, 107, 122, 0.12);
  --warn: #ffc857;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.7);
  --font: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --gutter: 24px;
  --header-h: 68px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
input, select { font: inherit; color: inherit; }
::selection { background: var(--arb); color: #00140d; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  font-weight: 600;
}
h1 { font-size: clamp(2.4rem, 5.6vw, 4.4rem); letter-spacing: -0.035em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.8rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; color: var(--text-2); }
strong { color: var(--text); font-weight: 600; }

.mono, .num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--gutter); }
.container-narrow { max-width: 820px; }

.section { padding: 96px 0; position: relative; }
.section-tight { padding: 64px 0; }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { font-size: 1.1rem; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--arb);
  margin-bottom: 16px;
}
.eyebrow.ev { color: var(--ev); }
.eyebrow::before { content: ""; width: 18px; height: 1px; background: currentColor; }

.grad-text {
  background: linear-gradient(100deg, var(--arb) 0%, #7fe8ff 50%, var(--ev) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.text-arb { color: var(--arb); }
.text-ev { color: var(--ev); }
.text-neg { color: var(--neg); }
.text-muted { color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 22px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:active { transform: translateY(1px); }
.btn-sm { height: 38px; padding: 0 14px; font-size: 0.875rem; border-radius: 10px; }
.btn-lg { height: 56px; padding: 0 28px; font-size: 1rem; }
.btn-block { width: 100%; white-space: normal; height: auto; min-height: 48px; padding-top: 10px; padding-bottom: 10px; text-align: center; }
.btn-primary {
  background: linear-gradient(135deg, #5cf2bf, var(--arb) 45%, var(--arb-2));
  color: #00180f;
  box-shadow: 0 8px 30px -8px rgba(46, 230, 166, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.btn-primary:hover { box-shadow: 0 12px 40px -8px rgba(46, 230, 166, 0.75), inset 0 1px 0 rgba(255, 255, 255, 0.35); }
.btn-ev {
  background: linear-gradient(135deg, #b4a9ff, var(--ev) 45%, var(--ev-2));
  color: #0b0624;
  box-shadow: 0 8px 30px -8px rgba(154, 140, 255, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.btn-ghost { background: rgba(255, 255, 255, 0.03); border-color: var(--line-2); color: var(--text); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.07); border-color: rgba(255, 255, 255, 0.2); }
.btn-telegram { background: #2aabee; color: #fff; box-shadow: 0 8px 30px -10px rgba(42, 171, 238, 0.7); }
.btn-telegram:hover { background: #229ed9; }

.btn svg { width: 18px; height: 18px; flex: none; }

/* ---------- Badges / chips ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--surface-3);
  color: var(--text-2);
  border: 1px solid var(--line);
  white-space: nowrap;
}
.badge-arb { background: var(--arb-soft); color: var(--arb); border-color: rgba(46, 230, 166, 0.25); }
.badge-ev { background: var(--ev-soft); color: var(--ev); border-color: rgba(154, 140, 255, 0.3); }
.badge-neg { background: var(--neg-soft); color: var(--neg); border-color: rgba(255, 107, 122, 0.25); }
.badge-pro {
  background: linear-gradient(135deg, rgba(46, 230, 166, 0.18), rgba(154, 140, 255, 0.18));
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.15);
}

.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--arb); flex: none; }
.dot.live { animation: pulse 1.8s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(46, 230, 166, 0.6); }
  70% { box-shadow: 0 0 0 8px rgba(46, 230, 166, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 230, 166, 0); }
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(6, 8, 12, 0.72);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.site-header .container { height: 100%; display: flex; align-items: center; gap: 32px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; letter-spacing: -0.02em; }
.logo-mark { width: 32px; height: 32px; }
.logo-word { color: var(--text); font-weight: 700; }
.logo-word em { font-style: normal; background: linear-gradient(100deg, var(--arb), var(--ev)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav > a {
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 0.92rem;
  color: var(--text-2);
  font-weight: 500;
  transition: color 0.15s, background 0.15s;
}
.nav > a:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.nav > a.active { color: var(--text); background: rgba(255, 255, 255, 0.06); }
.nav a .badge { height: 20px; padding: 0 7px; font-size: 0.65rem; margin-left: 4px; }
.nav-cta { display: none; }
.header-cta { display: flex; gap: 10px; }
.menu-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: transparent;
  align-items: center;
  justify-content: center;
}
.menu-toggle svg { width: 20px; height: 20px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 96px 0 80px; overflow: hidden; }
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(600px 400px at 15% 10%, rgba(46, 230, 166, 0.14), transparent 70%),
    radial-gradient(700px 500px at 85% 30%, rgba(154, 140, 255, 0.14), transparent 70%);
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%);
}
.hero .container { position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero h1 { margin-bottom: 24px; }
.hero-lead { font-size: 1.2rem; max-width: 560px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 28px; }
.hero-proof div { display: flex; flex-direction: column; }
.hero-proof .num { font-size: 1.5rem; color: var(--text); font-weight: 600; }
.hero-proof small { color: var(--muted); font-size: 0.82rem; }
.hero-proof .num.text-arb { color: var(--arb); }
.hero-proof .num.text-ev { color: var(--ev); }
.page-hero { padding: 80px 0 48px; }
.page-hero h1 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); }

/* ---------- Cards ---------- */
.card {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}
.card-glow::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(46, 230, 166, 0.5), transparent 40%, transparent 60%, rgba(154, 140, 255, 0.5));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.icon-tile {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--arb-soft);
  color: var(--arb);
  margin-bottom: 18px;
}
.icon-tile.ev { background: var(--ev-soft); color: var(--ev); }
.icon-tile svg { width: 22px; height: 22px; }

.example {
  font-size: 0.88rem;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--text-2);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 14px;
  display: block;
}

/* Product cards (home) */
.product-card { padding: 36px; overflow: hidden; }
.product-card .product-name { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.product-card .product-name h3 { font-size: 1.6rem; margin: 0; }
.product-card ul { list-style: none; padding: 0; margin: 24px 0 28px; display: grid; gap: 12px; }
.product-card li { display: flex; gap: 12px; color: var(--text-2); }
.product-card li svg { width: 20px; height: 20px; flex: none; margin-top: 2px; }
.product-card.arb li svg { color: var(--arb); }
.product-card.ev li svg { color: var(--ev); }
.product-card .glow {
  position: absolute;
  width: 320px;
  height: 320px;
  right: -120px;
  top: -140px;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.35;
  pointer-events: none;
}
.product-card.arb .glow { background: var(--arb); }
.product-card.ev .glow { background: var(--ev); }
.product-card.all .glow { background: linear-gradient(135deg, var(--arb), var(--ev)); opacity: 0.45; }
.product-card.all li svg { color: #7fe8ff; }
.product-card .plan-sub { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); margin-bottom: 14px; display: block; }

/* ---------- Hero demo card ---------- */
.demo-card { padding: 0; overflow: hidden; box-shadow: var(--shadow); }
.demo-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--line); font-size: 0.85rem; color: var(--muted); }
.demo-head .live-label { display: flex; align-items: center; gap: 8px; color: var(--text-2); }
.demo-body { padding: 22px 20px; }
.demo-event { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; margin-bottom: 4px; }
.demo-meta { font-size: 0.82rem; color: var(--muted); margin-bottom: 18px; }
.demo-legs { display: grid; gap: 10px; margin-bottom: 18px; }
.demo-leg {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 14px;
  align-items: center;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--surface-2);
  border: 1px solid var(--line);
}
.demo-leg .who { display: flex; flex-direction: column; line-height: 1.3; }
.demo-leg .who small { color: var(--muted); font-size: 0.78rem; }
.demo-leg .odds { font-family: var(--font-mono); font-weight: 600; }
.demo-leg .stake { font-family: var(--font-mono); color: var(--arb); min-width: 84px; text-align: right; }
.demo-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border-radius: 12px;
  background: var(--arb-soft);
  border: 1px solid rgba(46, 230, 166, 0.25);
}
.demo-result .big { font-family: var(--font-mono); font-size: 1.4rem; font-weight: 700; color: var(--arb); }
.demo-foot { padding: 12px 20px; border-top: 1px solid var(--line); font-size: 0.78rem; color: var(--muted); }

/* ---------- Comparison table ---------- */
.compare { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 0.95rem; }
.compare th, .compare td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.compare thead th { font-family: var(--font-display); font-size: 1rem; color: var(--text); }
.compare td:not(:first-child), .compare th:not(:first-child) { text-align: center; }
.compare td:first-child { color: var(--text-2); }
.compare .col-all { background: linear-gradient(180deg, rgba(46, 230, 166, 0.07), rgba(154, 140, 255, 0.07)); }
.compare th.col-all { font-size: 1.1rem; }
.compare th.col-all .badge { display: table; margin: 6px auto 0; height: 22px; font-size: 0.68rem; }
.compare .price-row td { font-family: var(--font-mono); font-weight: 600; color: var(--text); }
.compare .price-row td:first-child { font-family: var(--font); font-weight: 400; color: var(--text-2); }
.compare .price-row td.col-all { color: var(--arb); }
.compare svg { width: 20px; height: 20px; display: inline-block; }
.yes { color: var(--arb); }
.no { color: var(--muted); opacity: 0.6; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }

/* ---------- Pricing ---------- */
.billing-toggle {
  display: inline-flex;
  padding: 4px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  margin-bottom: 40px;
}
.billing-toggle button {
  border: 0;
  background: transparent;
  padding: 10px 18px;
  border-radius: 9px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.billing-toggle button.active { background: var(--surface-3); color: var(--text); box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06) inset; }
.billing-toggle .save { font-size: 0.72rem; color: var(--arb); font-weight: 600; }
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: stretch; }
.price-card { display: flex; flex-direction: column; padding: 28px 24px; }
.price-card.featured {
  background: linear-gradient(180deg, #121a22 0%, #0c1218 100%);
  box-shadow: 0 30px 80px -30px rgba(46, 230, 166, 0.35);
}
.price-card .plan-label { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 6px; min-height: 26px; }
.price-card h3 { font-size: 1.3rem; margin: 0; }
.price-card .plan-desc { font-size: 0.9rem; color: var(--muted); margin-bottom: 22px; min-height: 44px; }
.price { display: flex; align-items: baseline; gap: 6px; margin-bottom: 4px; }
.price .amount { font-family: var(--font-display); font-size: 2.6rem; font-weight: 700; letter-spacing: -0.03em; }
.price .per { color: var(--muted); font-size: 0.9rem; }
.price-note { font-size: 0.82rem; color: var(--muted); min-height: 22px; margin-bottom: 20px; }
.price-note b { color: var(--arb); font-weight: 600; }
.price-card ul { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 10px; font-size: 0.9rem; }
.price-card li { display: flex; gap: 10px; color: var(--text-2); }
.price-card li svg { width: 18px; height: 18px; flex: none; margin-top: 3px; color: var(--arb); }
.price-card li.off { color: var(--muted); }
.price-card li.off svg { color: var(--muted); opacity: 0.5; }
.price-card .btn { margin-top: auto; }
.price-card .spacer { flex: 1; min-height: 20px; }

/* ---------- Steps / timeline ---------- */
.steps { counter-reset: s; display: grid; gap: 14px; }
.step { display: grid; grid-template-columns: 44px 1fr; gap: 16px; align-items: start; }
.step::before {
  counter-increment: s;
  content: counter(s);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-weight: 600;
  background: var(--surface-2);
  border: 1px solid var(--line-2);
  color: var(--arb);
}
.step h4 { margin: 8px 0 4px; font-size: 1.05rem; }
.step p { margin: 0; font-size: 0.95rem; }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: 10px; }
.faq details {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-2);
  transition: border-color 0.2s, background 0.2s;
}
.faq details[open] { border-color: var(--line-2); background: var(--surface); }
.faq summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 22px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--muted);
  transition: transform 0.2s;
  flex: none;
}
.faq details[open] summary::after { transform: rotate(45deg); color: var(--arb); }
.faq .answer { padding: 0 22px 20px; }
.faq .answer p:last-child { margin: 0; }

/* ---------- Callouts ---------- */
.callout {
  display: flex;
  gap: 14px;
  padding: 18px 20px;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  font-size: 0.95rem;
}
.callout svg { width: 22px; height: 22px; flex: none; margin-top: 1px; color: var(--warn); }
.callout p { margin: 0; }
.callout.arb svg { color: var(--arb); }
.callout.ev svg { color: var(--ev); }

/* Formula block */
.formula {
  font-family: var(--font-mono);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  font-size: 0.95rem;
  color: var(--text);
  overflow-x: auto;
  white-space: nowrap;
}
.formula .c { color: var(--muted); }

/* ---------- Forms ---------- */
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.8rem; color: var(--muted); font-weight: 500; }
.input, .select {
  height: 46px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  outline: none;
  width: 100%;
  min-width: 0;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.select { font-family: var(--font); appearance: none; -webkit-appearance: none; padding-right: 36px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%237d889b' stroke-width='2'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; }
.input:focus, .select:focus { border-color: var(--arb); box-shadow: 0 0 0 3px rgba(46, 230, 166, 0.15); }
.input-group { position: relative; }
.input-group .suffix { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 0.85rem; pointer-events: none; }

.chip {
  height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: transparent;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s;
  white-space: nowrap;
}
.chip:hover { border-color: rgba(255, 255, 255, 0.25); color: var(--text); }
.chip.active { background: var(--text); color: var(--bg); border-color: var(--text); }
.chip .count { font-family: var(--font-mono); font-size: 0.75rem; opacity: 0.6; }

.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: 0.88rem; color: var(--text-2); user-select: none; }
.switch input { display: none; }
.switch .track { width: 38px; height: 22px; border-radius: 999px; background: var(--surface-3); border: 1px solid var(--line-2); position: relative; transition: background 0.2s; flex: none; }
.switch .track::after { content: ""; position: absolute; width: 16px; height: 16px; border-radius: 50%; background: var(--text-2); top: 2px; left: 2px; transition: transform 0.2s, background 0.2s; }
.switch input:checked + .track { background: var(--arb-soft); border-color: rgba(46, 230, 166, 0.4); }
.switch input:checked + .track::after { transform: translateX(16px); background: var(--arb); }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; padding-bottom: 2px; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  border: 1px solid var(--line);
  background: var(--bg-2);
  border-radius: 12px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.tab.active { background: var(--surface-2); color: var(--text); border-color: var(--line-2); }
.tab .badge { height: 20px; font-size: 0.65rem; padding: 0 7px; }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 72px 32px;
  border-radius: 24px;
  border: 1px solid var(--line-2);
  background:
    radial-gradient(500px 260px at 20% 0%, rgba(46, 230, 166, 0.2), transparent 70%),
    radial-gradient(500px 260px at 80% 100%, rgba(154, 140, 255, 0.2), transparent 70%),
    var(--surface);
}
.cta-band h2 { max-width: 720px; margin: 0 auto 16px; }
.cta-band p { max-width: 560px; margin: 0 auto 28px; font-size: 1.1rem; }
.cta-band .hero-actions { justify-content: center; margin: 0; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 64px 0 40px; margin-top: 64px; background: var(--bg-2); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-grid h4 { font-family: var(--font); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 16px; font-weight: 600; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: 0.92rem; }
.footer-grid a { color: var(--text-2); }
.footer-grid a:hover { color: var(--text); }
.footer-about p { font-size: 0.92rem; max-width: 320px; margin-top: 16px; }
.footer-about .footer-mail { margin: 12px 0 0; font-size: 0.85rem; color: var(--muted); }
.footer-about .footer-mail a { color: var(--text-2); text-decoration: underline; text-underline-offset: 3px; }
.footer-legal { border-top: 1px solid var(--line); padding-top: 28px; display: flex; gap: 20px; align-items: flex-start; font-size: 0.8rem; color: var(--muted); }
.footer-legal p { color: var(--muted); margin: 0; font-size: 0.8rem; }
.age-badge {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--neg);
  color: var(--neg);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.85rem;
}

/* ---------- Utilities ---------- */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.center { text-align: center; }
.flex { display: flex; }
.gap-12 { gap: 12px; }
.wrap { flex-wrap: wrap; }
.hidden { display: none !important; }
.divider { height: 1px; background: var(--line); margin: 32px 0; border: 0; }

.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 920px) {
  .nav, .header-cta { display: none; }
  .menu-toggle { display: inline-flex; }
  .site-header.open .nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    padding: 12px var(--gutter) 20px;
    background: rgba(6, 8, 12, 0.97);
    border-bottom: 1px solid var(--line);
    gap: 2px;
  }
  .site-header.open .nav > a { padding: 14px 12px; font-size: 1rem; }
  .site-header.open .nav-cta { display: flex; gap: 10px; margin-top: 12px; }
  .site-header.open .nav-cta .btn { flex: 1; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-about { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  :root { --gutter: 16px; --header-h: 60px; }
  body { font-size: 15px; }
  .section { padding: 64px 0; }
  .section-tight { padding: 48px 0; }
  .hero { padding: 56px 0 56px; }
  .page-hero { padding: 48px 0 24px; }
  .hero-lead { font-size: 1.05rem; }
  .hero-actions .btn { flex: 1 1 100%; }
  .hero-proof { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .card { padding: 22px; }
  .product-card { padding: 26px 22px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .cta-band { padding: 48px 20px; border-radius: 18px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .demo-leg { grid-template-columns: 1fr auto; }
  .demo-leg .stake { grid-column: 1 / -1; text-align: left; }
  .compare th, .compare td { padding: 12px 10px; font-size: 0.85rem; }
}

/* ---------- Pagine prodotto ---------- */
.explainer { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: start; }
.explainer > * { min-width: 0; }
.explainer .sticky { position: sticky; top: calc(var(--header-h) + 24px); }
.try-card { padding: 0; overflow: hidden; }
.try-head { padding: 18px 22px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.try-head h3 { margin: 0; font-size: 1.1rem; }
.try-body { padding: 22px; display: grid; gap: 20px; }
.try-inputs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.calc-steps { display: grid; gap: 14px; counter-reset: cs; }
.calc-step { display: grid; grid-template-columns: 28px 1fr; gap: 12px; }
.calc-step::before {
  counter-increment: cs;
  content: counter(cs);
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--surface-3);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-2);
}
.calc-step h4 { font-family: var(--font); font-size: 0.92rem; margin: 3px 0 6px; font-weight: 600; }
.calc-step .formula { font-size: 0.85rem; padding: 12px 14px; white-space: normal; line-height: 1.7; }
.prob-bar { display: flex; height: 34px; border-radius: 9px; overflow: hidden; background: var(--bg); border: 1px solid var(--line); font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600; }
.prob-bar div { display: flex; align-items: center; justify-content: center; white-space: nowrap; overflow: hidden; transition: width 0.3s ease; }
.prob-bar .a { background: rgba(46, 230, 166, 0.28); color: var(--arb); }
.prob-bar .b { background: rgba(127, 232, 255, 0.22); color: #7fe8ff; }
.prob-bar .c { background: rgba(154, 140, 255, 0.25); color: var(--ev); }
.prob-bar .gap { background: repeating-linear-gradient(135deg, rgba(46, 230, 166, 0.12) 0 6px, transparent 6px 12px); color: var(--arb); }
.prob-bar .over { background: repeating-linear-gradient(135deg, rgba(255, 107, 122, 0.22) 0 6px, transparent 6px 12px); color: var(--neg); }
.prob-legend { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--muted); margin-top: 6px; }
.verdict { padding: 14px 16px; border-radius: 12px; font-size: 0.92rem; }
.verdict.ok { background: var(--arb-soft); border: 1px solid rgba(46, 230, 166, 0.25); }
.verdict.ko { background: var(--neg-soft); border: 1px solid rgba(255, 107, 122, 0.25); }
.verdict.evc { background: var(--ev-soft); border: 1px solid rgba(154, 140, 255, 0.3); }
.verdict b { font-family: var(--font-mono); }

.prose h3 { margin-top: 36px; }
.prose h3:first-child { margin-top: 0; }
.prose ul { padding-left: 20px; color: var(--text-2); }
.prose li { margin-bottom: 8px; }

.risk-list { display: grid; gap: 12px; }
.risk { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.risk > div { padding: 18px 20px; }
.risk > div:first-child { background: var(--bg-2); }
.risk > div:last-child { background: var(--surface); border-left: 1px solid var(--line); }
.risk small { display: block; font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 6px; }
.risk h4 { font-size: 1rem; margin: 0 0 4px; }
.risk p { margin: 0; font-size: 0.92rem; }

.offer {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 44px;
}
.offer ul { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.offer li { display: flex; gap: 10px; color: var(--text-2); }
.offer li svg { width: 20px; height: 20px; flex: none; color: var(--arb); margin-top: 2px; }
.offer.ev li svg { color: var(--ev); }
.offer > * { min-width: 0; }
.offer-price { text-align: center; padding: 28px; border-radius: 16px; background: var(--bg); border: 1px solid var(--line); }
.offer-price .price { justify-content: center; }
.offer-price .btn { margin-top: 18px; }

.sim-chart { width: 100%; height: auto; }
.sim-chart text { font-family: var(--font-mono); font-size: 11px; fill: var(--muted); }
.sim-legend { display: flex; flex-wrap: wrap; gap: 18px; font-size: 0.82rem; color: var(--muted); margin-top: 10px; }
.sim-legend span { display: inline-flex; align-items: center; gap: 8px; }
.sim-legend i { width: 18px; height: 3px; border-radius: 2px; display: inline-block; }

@media (max-width: 920px) {
  .explainer { grid-template-columns: 1fr; gap: 32px; }
  .explainer .sticky { position: static; }
  .offer { grid-template-columns: 1fr; padding: 28px; gap: 28px; }
}
@media (max-width: 640px) {
  .try-inputs { grid-template-columns: 1fr 1fr; }
  .try-inputs .field:last-child { grid-column: 1 / -1; }
  .risk { grid-template-columns: 1fr; }
  .risk > div:last-child { border-left: 0; border-top: 1px solid var(--line); }
  .offer { padding: 22px; }
}

/* ---------- Calcolatori ---------- */
.tool-nav { position: sticky; top: var(--header-h); z-index: 20; background: rgba(6, 8, 12, 0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); padding: 12px 0; margin-bottom: 40px; }
.tool { scroll-margin-top: calc(var(--header-h) + 80px); margin-bottom: 28px; padding: 0; overflow: hidden; }
.tool-head { padding: 22px 26px; border-bottom: 1px solid var(--line); display: flex; gap: 16px; align-items: flex-start; }
.tool-head .icon-tile { margin: 0; flex: none; }
.tool-head h2 { font-size: 1.4rem; margin: 0 0 4px; }
.tool-head p { margin: 0; font-size: 0.95rem; }
.tool-body { display: grid; grid-template-columns: 1fr 1fr; }
.tool-body > div { padding: 24px 26px; }
.tool-body > div:last-child { background: var(--bg-2); border-left: 1px solid var(--line); }
.tool-inputs { display: grid; gap: 14px; align-content: start; }
.tool-inputs .row { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 12px; }
.seg { justify-self: start; display: inline-flex; padding: 3px; border-radius: 10px; background: var(--bg); border: 1px solid var(--line); }
.seg button { border: 0; background: transparent; padding: 7px 14px; border-radius: 8px; font-size: 0.85rem; font-weight: 600; color: var(--text-2); }
.seg button.active { background: var(--surface-3); color: var(--text); }
.res-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.res-table th { text-align: left; font-weight: 500; color: var(--muted); font-size: 0.78rem; padding: 0 0 10px; }
.res-table td { padding: 10px 0; border-top: 1px solid var(--line); font-family: var(--font-mono); }
.res-table td:first-child { font-family: var(--font); color: var(--text-2); }
.res-table th:not(:first-child), .res-table td:not(:first-child) { text-align: right; }
.kpi { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 16px; }
.kpi div { padding: 14px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); }
.kpi small { display: block; color: var(--muted); font-size: 0.75rem; margin-bottom: 2px; }
.kpi b { font-family: var(--font-mono); font-size: 1.3rem; font-weight: 600; }
.tool-help { font-size: 0.85rem; color: var(--muted); margin: 14px 0 0; }

@media (max-width: 860px) {
  .tool-body { grid-template-columns: 1fr; }
  .tool-body > div:last-child { border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 640px) {
  .tool-head { padding: 18px; flex-direction: column; gap: 12px; }
  .tool-body > div { padding: 18px; }
  .tool-head h2 { font-size: 1.2rem; }
}