:root {
  --bg: #0A0A0F;
  --bg-2: #0E0E15;
  --surface: #12121A;
  --surface-2: #16161F;
  --border: #1F1F2E;
  --border-2: #2A2A3E;
  --text: #F4F4F7;
  --text-2: #A8A8B8;
  --text-3: #6E6E80;
  --accent: oklch(0.68 0.17 15);
  --accent-2: oklch(0.78 0.14 15);
  --accent-soft: oklch(0.68 0.17 15 / 0.12);
  --accent-glow: oklch(0.68 0.17 15 / 0.28);
  --ok: oklch(0.78 0.15 155);
  --warn: oklch(0.8 0.14 80);
  --bad: oklch(0.65 0.2 25);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv11","ss01","ss03";
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

/* --------- Layout --------- */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 120px 0; position: relative; }
.section-head { max-width: 760px; margin-bottom: 56px; }
.eyebrow {
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.16em;
  color: var(--accent);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px; border-radius: 99px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}
h1, h2, h3, h4 { margin: 0; letter-spacing: -0.02em; font-weight: 600; text-wrap: balance; }
h1 { font-size: clamp(40px, 6vw, 68px); line-height: 1.02; letter-spacing: -0.035em; font-weight: 600; }
h2 { font-size: clamp(32px, 4.2vw, 48px); line-height: 1.05; letter-spacing: -0.03em; }
h3 { font-size: 20px; line-height: 1.3; }
p  { color: var(--text-2); line-height: 1.6; text-wrap: pretty; }
.sub { font-size: 18px; color: var(--text-2); max-width: 620px; line-height: 1.55; margin-top: 20px; }

/* background grid */
.bggrid {
  position: fixed; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 10%, rgba(0,0,0,0.8), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.section { z-index: 1; }

/* --------- Nav --------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: rgba(10, 10, 15, 0.65);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.nav.scrolled { border-color: var(--border); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font: 600 16px var(--font-sans); letter-spacing: -0.01em;
}
.logo-mark {
  width: 22px; height: 22px; border-radius: 6px;
  background:
    conic-gradient(from 140deg, var(--accent) 0 30%, transparent 30% 70%, var(--accent) 70% 100%);
  position: relative;
}
.logo-mark::after {
  content: ""; position: absolute; inset: 5px; border-radius: 3px;
  background: var(--bg);
}
.nav-links { display: flex; gap: 4px; }
.nav-link {
  font: 500 14px var(--font-sans); color: var(--text-2);
  padding: 8px 14px; border-radius: 8px; transition: color .15s, background .15s;
}
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-cta {
  font: 500 14px var(--font-sans);
  padding: 8px 16px; border-radius: 999px;
  background: var(--text); color: var(--bg);
  transition: transform .15s, box-shadow .15s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,255,255,0.08); }

/* --------- Buttons --------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 14px var(--font-sans);
  padding: 12px 20px; border-radius: 10px;
  transition: transform .15s, background .15s, box-shadow .15s, border-color .15s;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--text); color: var(--bg);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.1), 0 8px 28px rgba(255,255,255,0.08);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px rgba(255,255,255,0.2), 0 12px 36px rgba(255,255,255,0.15); }
.btn-ghost { color: var(--text); border-color: var(--border); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { border-color: var(--border-2); background: rgba(255,255,255,0.05); }
.btn-lg { padding: 16px 28px; font-size: 15px; border-radius: 12px; }

/* --------- Hero --------- */
.hero {
  padding: 100px 0 120px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 700px; pointer-events: none;
  background:
    radial-gradient(closest-side, oklch(0.68 0.17 15 / 0.18), transparent 70%),
    radial-gradient(closest-side, oklch(0.45 0.2 290 / 0.15), transparent 70%);
  background-position: 30% 40%, 70% 60%;
  background-repeat: no-repeat;
  filter: blur(20px);
}
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 64px; align-items: center;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--text) 0%, var(--accent) 60%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: 19px; margin-top: 28px; max-width: 560px; }
.hero-ctas { display: flex; gap: 12px; margin-top: 36px; flex-wrap: wrap; }
.hero-micro {
  margin-top: 20px; font: 400 13px var(--font-mono); color: var(--text-3);
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.hero-micro span { display: inline-flex; align-items: center; gap: 6px; }
.hero-micro .dot { width: 4px; height: 4px; border-radius: 99px; background: var(--text-3); }

/* --------- Diagram (hero visual) --------- */
.diagram {
  position: relative;
  aspect-ratio: 1 / 1.1;
  background: radial-gradient(ellipse at 50% 50%, rgba(30,30,45,0.4), transparent 70%);
  border-radius: 20px;
}
.diagram-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.node {
  position: absolute; transform: translate(-50%,-50%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 16px;
  display: flex; align-items: center; gap: 10px;
  font: 500 13px var(--font-sans); color: var(--text);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.03);
  white-space: nowrap;
}
.node-badge {
  font: 500 10px/1 var(--font-mono);
  color: var(--text-3);
  letter-spacing: 0.1em; text-transform: uppercase;
}
.node-dot {
  width: 10px; height: 10px; border-radius: 4px;
  background: var(--border-2);
  position: relative;
}
.node-dot.active { background: var(--accent); box-shadow: 0 0 12px var(--accent-glow); }
.node.primary {
  border-color: oklch(0.68 0.17 15 / 0.4);
  background: linear-gradient(180deg, var(--surface) 0%, #1a1220 100%);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px oklch(0.68 0.17 15 / 0.2), inset 0 1px 0 rgba(255,255,255,0.04);
}
.node.primary .node-dot { background: var(--accent); box-shadow: 0 0 14px var(--accent-glow); }

/* Phone mock */
.phone {
  position: absolute; right: 0; top: 50%; transform: translate(0,-50%);
  width: 210px; aspect-ratio: 9/19.5;
  background: #050508;
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 10px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), inset 0 0 0 1.5px #0a0a12;
}
.phone-screen {
  width: 100%; height: 100%;
  background: linear-gradient(180deg, #0f0f18 0%, #08080e 100%);
  border-radius: 20px;
  padding: 18px 14px 14px;
  position: relative;
  overflow: hidden;
}
.phone-notch {
  position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
  width: 60px; height: 18px; background: #000; border-radius: 12px;
}
.phone-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 8px; padding-bottom: 14px;
  font: 600 10px var(--font-sans); color: var(--text);
}
.phone-contact { display: flex; align-items: center; gap: 8px; }
.phone-avatar {
  width: 28px; height: 28px; border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, oklch(0.55 0.18 320) 100%);
}
.phone-contact-name { font: 600 11px var(--font-sans); }
.phone-contact-sub { font: 400 9px var(--font-mono); color: var(--text-3); margin-top: 2px; }
.bubbles { display: flex; flex-direction: column; gap: 6px; margin-top: 14px; }
.bubble {
  font: 400 10px/1.35 var(--font-sans);
  padding: 6px 9px; border-radius: 10px;
  max-width: 82%;
}
.bubble.in { background: var(--surface-2); color: var(--text); align-self: flex-start; border-bottom-left-radius: 3px; }
.bubble.out { background: var(--accent); color: #120000; align-self: flex-end; border-bottom-right-radius: 3px; font-weight: 500; }
.typing {
  align-self: flex-start;
  display: inline-flex; gap: 3px; padding: 8px 10px;
  background: var(--surface-2); border-radius: 10px; border-bottom-left-radius: 3px;
}
.typing i { width: 5px; height: 5px; border-radius: 99px; background: var(--text-3); animation: blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .15s; }
.typing i:nth-child(3) { animation-delay: .3s; }
@keyframes blink { 0%, 60%, 100% { opacity: 0.3; } 30% { opacity: 1; } }

/* pulse line */
.pulse-line {
  stroke: var(--border-2);
  stroke-width: 1.5;
  stroke-dasharray: 4 6;
  fill: none;
}
.pulse-flow {
  stroke: var(--accent);
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  filter: drop-shadow(0 0 6px var(--accent-glow));
}

/* --------- Problem cards --------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  transition: border-color .2s, transform .2s, background .2s;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px at var(--mx,50%) var(--my,0%), var(--accent-soft), transparent 70%);
  opacity: 0; transition: opacity .3s;
  pointer-events: none;
}
.card:hover { border-color: var(--border-2); transform: translateY(-2px); }
.card:hover::before { opacity: 1; }
.card-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--surface-2); border: 1px solid var(--border);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--accent); margin-bottom: 20px;
}
.card h3 { margin-bottom: 10px; font-size: 18px; }
.card p { font-size: 14px; }

/* --------- Steps --------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; position: relative; }
.step {
  padding: 32px 28px 32px 0;
  position: relative;
}
.step + .step { padding-left: 32px; border-left: 1px dashed var(--border); }
.step-n {
  font: 500 12px var(--font-mono);
  color: var(--accent); letter-spacing: 0.1em;
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 16px;
}
.step-n::before {
  content: ""; display: inline-block;
  width: 24px; height: 24px; border-radius: 6px;
  background: var(--accent-soft);
  border: 1px solid oklch(0.68 0.17 15 / 0.3);
  color: var(--accent);
  font: 500 11px var(--font-mono);
  text-align: center; line-height: 24px;
}
.step-0 .step-n::before { content: "01"; }
.step-1 .step-n::before { content: "02"; }
.step-2 .step-n::before { content: "03"; }
.step h3 { font-size: 19px; margin-bottom: 10px; }
.step p { font-size: 14px; }
.step-visual {
  margin-top: 20px;
  height: 120px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  font: 500 11px var(--font-mono);
  color: var(--text-3);
  position: relative;
  overflow: hidden;
}

/* --------- Code block --------- */
.code-wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.code-frame {
  background: #0C0C14;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.02);
  position: relative;
}
.code-chrome {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.traffic { display: flex; gap: 6px; }
.traffic i { width: 11px; height: 11px; border-radius: 99px; display: inline-block; }
.traffic i:nth-child(1) { background: #FF5F57; }
.traffic i:nth-child(2) { background: #FEBC2E; }
.traffic i:nth-child(3) { background: #28C840; }
.code-filename {
  font: 500 12px var(--font-mono);
  color: var(--text-2);
  display: flex; align-items: center; gap: 8px;
}
.code-filename .pill {
  font: 500 10px var(--font-mono);
  padding: 2px 6px; border-radius: 4px;
  background: var(--accent-soft); color: var(--accent);
  letter-spacing: 0.05em;
}
pre.code {
  margin: 0; padding: 22px 22px 22px 58px;
  font: 400 13px/1.65 var(--font-mono);
  color: var(--text-2);
  overflow-x: auto;
  counter-reset: line;
  position: relative;
}
pre.code code { display: block; }
.line { display: block; position: relative; }
.line::before {
  counter-increment: line;
  content: counter(line);
  position: absolute; left: -36px; top: 0;
  width: 24px; text-align: right;
  color: var(--text-3); opacity: 0.5;
  font-size: 11px;
}
.k { color: #D8B4FE; }        /* keyword purple */
.s { color: #86EFAC; }        /* string green */
.n { color: #FDBA74; }        /* number */
.b { color: #7DD3FC; }        /* boolean/null */
.p { color: var(--text-3); }  /* punctuation */
.c { color: #4F4F62; font-style: italic; } /* comment */
.pv { color: #FDA4AF; }       /* property */

.code-copy {
  position: absolute; top: 14px; right: 14px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 10px;
  font: 500 11px var(--font-mono); color: var(--text-2);
  display: inline-flex; align-items: center; gap: 6px;
  transition: all .15s;
}
.code-copy:hover { color: var(--text); border-color: var(--border-2); }

.code-meta { display: flex; flex-direction: column; gap: 20px; }
.meta-item { padding: 18px 20px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }
.meta-item h4 { font-size: 14px; margin-bottom: 6px; font-weight: 600; }
.meta-item p { font-size: 13px; margin: 0; }
.meta-item .tag {
  font: 500 10px var(--font-mono); letter-spacing: 0.1em;
  color: var(--accent); text-transform: uppercase;
  margin-bottom: 8px; display: block;
}

/* --------- Comparison table --------- */
.cmp {
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  background: var(--surface);
}
.cmp-head, .cmp-row {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr;
  align-items: center;
}
.cmp-head {
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}
.cmp-cell {
  padding: 18px 22px;
  font-size: 14px;
  border-right: 1px solid var(--border);
}
.cmp-cell:last-child { border-right: 0; }
.cmp-head .cmp-cell {
  font: 500 12px var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}
.cmp-head .cmp-cell.brand { color: var(--accent); font-weight: 600; }
.cmp-row { border-bottom: 1px solid var(--border); transition: background .15s; }
.cmp-row:last-child { border-bottom: 0; }
.cmp-row:hover { background: rgba(255,255,255,0.015); }
.cmp-label { color: var(--text); font-weight: 500; }
.cmp-val { color: var(--text-2); display: inline-flex; align-items: center; gap: 8px; }
.cmp-col-brand { background: rgba(255, 70, 90, 0.025); }
.cmp-icon-yes { color: var(--ok); }
.cmp-icon-no { color: var(--bad); opacity: 0.7; }
.cmp-icon-mid { color: var(--warn); }

/* --------- Use cases --------- */
.uc-card { display: flex; flex-direction: column; }
.uc-card .uc-badge {
  font: 500 10px var(--font-mono); letter-spacing: 0.1em;
  color: var(--text-3); text-transform: uppercase; margin-bottom: 16px;
}
.uc-card h3 { font-size: 20px; margin-bottom: 12px; }
.uc-card p { font-size: 14px; flex: 1; margin-bottom: 20px; }
.uc-meta {
  font: 400 12px var(--font-mono); color: var(--text-3);
  display: flex; gap: 14px; flex-wrap: wrap;
  padding-bottom: 16px; margin-bottom: 16px;
  border-bottom: 1px dashed var(--border);
}
.uc-meta span { display: inline-flex; align-items: center; gap: 4px; }
.uc-download {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 8px;
  font: 500 13px var(--font-sans); color: var(--text);
  align-self: flex-start;
  transition: all .15s;
}
.uc-download:hover { border-color: var(--accent); color: var(--accent); }

/* --------- Pricing --------- */
.price-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 900px; margin: 0 auto; }
.price {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 32px;
  position: relative;
  transition: border-color .2s;
}
.price.featured {
  border-color: oklch(0.68 0.17 15 / 0.4);
  background:
    linear-gradient(180deg, var(--surface) 0%, #18121A 100%);
  box-shadow: 0 0 0 1px oklch(0.68 0.17 15 / 0.15), 0 30px 80px rgba(0,0,0,0.35);
}
.price-badge {
  position: absolute; top: -10px; left: 32px;
  padding: 4px 10px; border-radius: 999px;
  background: var(--accent); color: #150000;
  font: 600 10px var(--font-mono); letter-spacing: 0.1em;
}
.price-promo {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 8px; border-radius: 6px;
  background: oklch(0.78 0.15 155 / 0.15); color: var(--ok);
  font: 500 10px var(--font-mono); letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.price-name { font-size: 14px; font-family: var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); margin-bottom: 16px; }
.price-amount { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
.price-amount .amt { font: 600 42px/1 var(--font-sans); letter-spacing: -0.03em; color: var(--text); }
.price-amount .per { font: 400 14px var(--font-sans); color: var(--text-3); }
.price-strike { font: 400 14px var(--font-mono); color: var(--text-3); text-decoration: line-through; margin-bottom: 4px; }
.price-desc { font-size: 14px; margin: 12px 0 24px; }
.price-features { list-style: none; padding: 0; margin: 0 0 28px; display: flex; flex-direction: column; gap: 10px; }
.price-features li { display: flex; gap: 10px; font-size: 14px; color: var(--text); align-items: flex-start; }
.price-features li svg { flex: 0 0 16px; margin-top: 2px; color: var(--accent); }
.price-features li strong { color: var(--text); font-weight: 600; }
.price .btn { width: 100%; justify-content: center; }
.price-micro {
  text-align: center; margin-top: 28px;
  font: 400 13px var(--font-mono); color: var(--text-3);
}
.price-micro a { color: var(--text-2); border-bottom: 1px dashed var(--border-2); }
.price-micro a:hover { color: var(--accent); }

/* --------- Dev grid --------- */
.dev-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.dev-card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  transition: border-color .15s, transform .15s;
}
.dev-card:hover { border-color: var(--border-2); transform: translateY(-2px); }
.dev-card-ic {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--accent-soft); color: var(--accent);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.dev-card h4 { font-size: 15px; margin-bottom: 8px; font-weight: 600; }
.dev-card p { font-size: 13px; margin: 0; }

/* --------- Final CTA --------- */
.final {
  text-align: center;
  padding: 140px 0 120px;
  position: relative;
  overflow: hidden;
}
.final::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 800px 400px at 50% 100%, oklch(0.45 0.2 290 / 0.18), transparent 70%),
    radial-gradient(ellipse 800px 400px at 50% 0%, oklch(0.68 0.17 15 / 0.14), transparent 70%);
  pointer-events: none;
}
.final h2 { font-size: clamp(40px, 6vw, 68px); letter-spacing: -0.035em; line-height: 1.02; max-width: 900px; margin: 0 auto; }
.final .sub { font-size: 19px; margin: 28px auto 40px; }
.final .btn-lg { padding: 18px 36px; font-size: 16px; }
.final-aside {
  max-width: 620px; margin: 56px auto 0;
  padding: 20px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 14px;
  color: var(--text-2);
  display: flex; gap: 16px; align-items: center; text-align: left;
}
.final-aside-num { font: 500 14px var(--font-mono); color: var(--accent); white-space: nowrap; }

/* --------- Footer --------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 48px;
  position: relative; z-index: 1;
}
.footer-top {
  display: grid; grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { font-size: 13px; margin-top: 14px; max-width: 280px; }
.footer-col h5 {
  font: 500 11px var(--font-mono); letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-3);
  margin: 0 0 14px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 14px; color: var(--text-2); transition: color .15s; }
.footer-col a:hover { color: var(--text); }
.footer-bot {
  padding-top: 24px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font: 400 12px var(--font-mono); color: var(--text-3);
}

/* --------- Tweaks panel --------- */
.tweaks-panel {
  position: fixed; bottom: 20px; right: 20px; z-index: 100;
  width: 280px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
  padding: 18px;
  font: 400 13px var(--font-sans);
  backdrop-filter: blur(12px);
}
.tweaks-panel h5 {
  font: 500 11px var(--font-mono); letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-3);
  margin: 0 0 14px;
  display: flex; justify-content: space-between; align-items: center;
}
.tweak-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.tweak-row label { font-size: 12px; color: var(--text-2); display: flex; justify-content: space-between; }
.tweak-row label code { color: var(--accent); font: 500 11px var(--font-mono); }
.tweak-row input[type=range] { width: 100%; accent-color: var(--accent); }
.tweak-row input[type=text], .tweak-row textarea {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 8px 10px; font: 400 12px var(--font-sans);
  resize: vertical;
}
.tweak-seg { display: flex; gap: 4px; background: var(--bg); padding: 3px; border-radius: 8px; border: 1px solid var(--border); }
.tweak-seg button { flex: 1; padding: 6px 8px; font: 500 11px var(--font-mono); border-radius: 5px; color: var(--text-2); }
.tweak-seg button.on { background: var(--accent); color: #150000; }
.tweak-swatch { display: flex; gap: 6px; }
.tweak-swatch button { width: 24px; height: 24px; border-radius: 6px; border: 1px solid var(--border); }
.tweak-swatch button.on { border-color: var(--text); box-shadow: 0 0 0 2px var(--bg), 0 0 0 3px var(--text); }

/* --------- Responsive --------- */
@media (max-width: 960px) {
  .section { padding: 80px 0; }
  .hero { padding: 60px 0 80px; }
  .hero-grid, .code-wrap { grid-template-columns: 1fr; gap: 40px; }
  .grid-3, .dev-grid, .price-grid, .steps { grid-template-columns: 1fr; }
  .step + .step { border-left: 0; border-top: 1px dashed var(--border); padding: 32px 0 0; margin-top: 32px; }
  .cmp-head, .cmp-row { grid-template-columns: 1.3fr 0.7fr 0.7fr 0.7fr; }
  .cmp-cell { padding: 14px 12px; font-size: 13px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .diagram { aspect-ratio: 1/1.4; }
  .phone { width: 170px; }
}

/* density tweaks */
body[data-density="compact"] .section { padding: 72px 0; }
body[data-density="compact"] .card { padding: 20px; }
body[data-density="compact"] .hero { padding: 60px 0 72px; }
body[data-density="roomy"] .section { padding: 160px 0; }