:root {
  --bg: #0a0a0b;
  --panel: #111114;
  --panel-2: #16161b;
  --fg: #e8e8ea;
  --fg-dim: #9a9aa2;
  --fg-dim-2: #5a5a62;
  --border: #24242a;
  --accent: #00ff88;
  --accent-dim: #00cc6f;
  --warn: #ff6b6b;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 80px 0;
}

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--fg);
  font-weight: 700;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--accent);
  color: #000;
  border-radius: 6px;
  font-family: var(--mono);
  font-weight: 900;
  font-size: 16px;
}
.brand-text { font-size: 16px; letter-spacing: -0.01em; }
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  color: var(--fg-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--fg); }
.nav-links .ghlink {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg);
}
.nav-links .ghlink:hover { border-color: var(--accent); }

@media (max-width: 720px) {
  .nav-links a:not(.ghlink) { display: none; }
}

.research-tag {
  background: linear-gradient(90deg, transparent, rgba(0,255,136,0.08), transparent);
  border-bottom: 1px solid var(--border);
  text-align: center;
  padding: 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.02em;
}

/* ===== Hero ===== */
.hero { padding: 96px 0 64px; }
.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: center;
}
.hero h1 {
  font-size: 56px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin-bottom: 24px;
}
.hero h1 .accent { color: var(--accent); }
.lead {
  font-size: 18px;
  color: var(--fg-dim);
  max-width: 620px;
  margin-bottom: 32px;
}
.lead strong { color: var(--fg); font-weight: 600; }

.ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover {
  background: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
}

.hero-diagram {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
.ascii {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  line-height: 1.5;
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 40px; }
  .hero-diagram { display: none; }
}

/* ===== Sections ===== */
section { padding: 48px 0; }
.sec-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim-2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
h2 {
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  font-weight: 800;
  margin-bottom: 16px;
}
.sec-desc {
  font-size: 17px;
  color: var(--fg-dim);
  max-width: 680px;
  margin-bottom: 40px;
}
.sec-desc strong { color: var(--fg); }

h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

/* ===== Cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent); }
.card-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.card p { color: var(--fg-dim); margin-bottom: 12px; }
.card ol {
  list-style-position: inside;
  color: var(--fg-dim);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.8;
  margin-top: 12px;
}
.card ol li code, .card p code {
  background: var(--panel-2);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent);
  font-size: 12px;
}
.card pre {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg);
  overflow-x: auto;
  margin-top: 12px;
}

/* ===== Calculator ===== */
.calc {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}
.calc-row { margin-bottom: 24px; }
.calc-row label {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}
.calc-row label span { color: var(--accent); text-transform: none; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  padding: 8px 14px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg-dim);
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.pill:hover { border-color: var(--accent); color: var(--fg); }
.pill.active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 600;
}
input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
.results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.rcard {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
}
.rcard-conservative { border-color: var(--accent); }
.rlabel {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.rnum {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 4px;
}
.rcard-moderate .rnum { color: var(--fg); }
.rcard-optimistic .rnum { color: var(--fg-dim); }
.rsub {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
}
.disclaimer {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-dim-2);
  margin-top: 20px;
  line-height: 1.6;
}
.disclaimer strong { color: var(--accent); }

@media (max-width: 720px) {
  .results { grid-template-columns: 1fr; }
}

/* ===== Pricing Table ===== */
.tbl-wrap { overflow-x: auto; }
.ptable {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.ptable th {
  background: var(--panel-2);
  padding: 14px 18px;
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}
.ptable td {
  padding: 16px 18px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}
.ptable td small {
  display: block;
  color: var(--fg-dim);
  font-size: 12px;
  margin-top: 2px;
}
.tag {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(0, 255, 136, 0.12);
  color: var(--accent);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
}

.pricing-mini {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
}
.pmini {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
}
.pmini h4 {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  font-weight: 600;
}
.pmini .val {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
}
.pmini .unit {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fg-dim);
  margin-top: 4px;
}

@media (max-width: 720px) {
  .pricing-mini { grid-template-columns: 1fr; }
}

/* ===== Code Block ===== */
.code-block {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 16px;
}
.code-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-r { background: #ff5f56; }
.dot-y { background: #ffbd2e; }
.dot-g { background: #27c93f; }
.code-lang {
  margin-left: 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
}
.code-block pre {
  padding: 20px 24px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--fg);
  overflow-x: auto;
}
.code-block code .kw { color: #ff79c6; }
.code-block code .str { color: var(--accent); }
.code-block code .num { color: #bd93f9; }
.code-block code .dim { color: var(--fg-dim-2); user-select: none; }

/* ===== Install features ===== */
.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 32px;
}
.feat {
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--fg-dim);
}
.feat strong { color: var(--fg); }

/* ===== FAQ ===== */
.faq-list { max-width: 820px; }
.faq-list details {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 22px;
  margin-bottom: 12px;
  cursor: pointer;
}
.faq-list details[open] { border-color: var(--accent); }
.faq-list summary {
  font-weight: 600;
  list-style: none;
  position: relative;
  padding-right: 24px;
  color: var(--fg);
}
.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  color: var(--accent);
  font-size: 18px;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list p {
  margin-top: 12px;
  color: var(--fg-dim);
  font-size: 15px;
}

/* ===== Footer ===== */
footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  margin-top: 48px;
}
.foot-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.copy { font-family: var(--mono); font-size: 12px; color: var(--fg-dim-2); }
.foot-links { display: flex; gap: 20px; flex-wrap: wrap; }
.foot-links a {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-dim);
  text-decoration: none;
}
.foot-links a:hover { color: var(--accent); }