/* ============================================================
   SOCIAL ENGINE — main.css
   Design system: near-black grounds, single red accent #ef5253,
   huge confident type, generous negative space.
   Dark theme is default. Light theme via [data-theme="light"].
   ============================================================ */

:root {
  --red: #ef5253;
  --red-dim: rgba(239, 82, 83, 0.14);
  --red-line: rgba(239, 82, 83, 0.35);

  /* dark (default) */
  --bg: #0b0b0c;
  --bg-raise: #111113;
  --bg-card: #141417;
  --ink: #f4f3f0;
  --ink-mute: #a2a19c;
  --ink-faint: #6b6a66;
  --line: rgba(244, 243, 240, 0.09);
  --line-strong: rgba(244, 243, 240, 0.18);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.55);
  --mock-bg: #17171a;
  --mock-line: rgba(244, 243, 240, 0.1);

  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --max: 1240px;
  --pad: clamp(20px, 4vw, 48px);
}

[data-theme="light"] {
  --bg: #f6f5f1;
  --bg-raise: #fdfcfa;
  --bg-card: #ffffff;
  --ink: #131312;
  --ink-mute: #5d5c57;
  --ink-faint: #93928c;
  --line: rgba(19, 19, 18, 0.1);
  --line-strong: rgba(19, 19, 18, 0.22);
  --shadow: 0 30px 80px rgba(19, 19, 18, 0.12);
  --mock-bg: #ffffff;
  --mock-line: rgba(19, 19, 18, 0.1);
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background 0.35s ease, color 0.35s ease;
}

::selection { background: var(--red); color: #fff; }

img, svg { display: block; max-width: 100%; }
a { color: inherit; }

.wrap { max-width: var(--max); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }

/* ---------- Type ---------- */
h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.04;
  text-wrap: balance;
}
h1 { font-size: clamp(2.6rem, 7vw, 5.6rem); }
h2 { font-size: clamp(2rem, 4.6vw, 3.6rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); line-height: 1.2; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--red);
  flex: none;
}

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--ink-mute);
  max-width: 60ch;
}

.accent { color: var(--red); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand {
  display: flex;
  flex-direction: column;
  gap: 1px;
  text-decoration: none;
  line-height: 1;
}
.brand-mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.06rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-mark::before {
  content: "";
  width: 11px; height: 11px;
  background: var(--red);
  flex: none;
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-left: 19px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink-mute);
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a[aria-current="page"] { position: relative; }
.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--red);
}
.nav-actions { display: flex; align-items: center; gap: 14px; }

.theme-toggle {
  appearance: none;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink-mute);
  width: 38px; height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: color 0.2s, border-color 0.2s;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--ink-mute); }
.theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

.menu-btn {
  display: none;
  appearance: none;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--ink);
  width: 42px; height: 38px;
  cursor: pointer;
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  padding: 14px 26px;
  border-radius: 4px;
  transition: transform 0.15s ease, background 0.2s, color 0.2s, border-color 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn:active { transform: translateY(1px); }
.btn-red { background: var(--red); color: #fff; }
.btn-red:hover { background: #f96b6c; }
.btn-ghost { border-color: var(--line-strong); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); }
.btn-lg { padding: 17px 34px; font-size: 1.02rem; }
.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Sections ---------- */
.section { padding: clamp(72px, 10vw, 140px) 0; }
.section-tight { padding: clamp(48px, 7vw, 90px) 0; }
.section-line { border-top: 1px solid var(--line); }
.section-head { max-width: 780px; margin-bottom: clamp(40px, 6vw, 72px); }

/* ---------- Hero ---------- */
.hero {
  padding: clamp(64px, 9vw, 120px) 0 clamp(56px, 7vw, 100px);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero h1 { margin-bottom: 26px; }
.hero .lede { margin-bottom: 38px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.hero-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
}

/* ---------- Flywheel ---------- */
.flywheel-shell { position: relative; }
.flywheel-svg { width: 100%; height: auto; }
.fw-caption {
  margin-top: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  min-height: 3.4em;
  transition: color 0.25s;
}
.fw-caption strong { color: var(--red); font-weight: 600; }

.fw-node { cursor: pointer; }
.fw-node circle.node-bg {
  fill: var(--bg-card);
  stroke: var(--line-strong);
  stroke-width: 1.5;
  transition: stroke 0.25s, fill 0.25s;
}
.fw-node.active circle.node-bg,
.fw-node:hover circle.node-bg { stroke: var(--red); }
.fw-node text {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  fill: var(--ink-mute);
  text-transform: uppercase;
  transition: fill 0.25s;
}
.fw-node.active text, .fw-node:hover text { fill: var(--ink); }
.fw-node .node-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  fill: var(--red);
  letter-spacing: 0;
}
.fw-ring { fill: none; stroke: var(--line-strong); stroke-width: 1.25; }
.fw-ring-glow { fill: none; stroke: var(--red); stroke-width: 1.5; opacity: 0.28; }
.fw-core-label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.06em;
  fill: var(--ink);
  text-transform: uppercase;
}
.fw-core-sub {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  fill: var(--ink-faint);
  text-transform: uppercase;
}
.fw-core-disc { fill: var(--bg-raise); stroke: var(--red-line); stroke-width: 1.5; }
.fw-particle { fill: var(--red); }
.fw-signal { fill: var(--ink-faint); }

/* ---------- Split panels (two audiences) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
}
.split-panel {
  padding: clamp(36px, 5vw, 64px);
}
.split-panel + .split-panel { border-left: 1px solid var(--line); }
.split-panel h3 { margin: 18px 0 14px; font-size: clamp(1.5rem, 2.4vw, 2rem); }
.split-panel p { color: var(--ink-mute); margin-bottom: 26px; }
.split-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
}
.text-link {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 2px solid var(--red);
  padding-bottom: 3px;
  transition: color 0.2s;
}
.text-link:hover { color: var(--red); }

/* ---------- Feature rows / lists ---------- */
.feat-rows { display: grid; gap: 0; border-top: 1px solid var(--line); }
.feat-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 320px) 1fr;
  gap: clamp(18px, 3vw, 44px);
  padding: clamp(26px, 4vw, 44px) 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.feat-num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--red);
  padding-top: 6px;
}
.feat-row h3 { font-size: clamp(1.2rem, 1.8vw, 1.45rem); }
.feat-row p { color: var(--ink-mute); max-width: 62ch; }
.feat-row .sub {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  padding: clamp(28px, 3.4vw, 44px);
}

/* ---------- Mockups (stylized product UI) ---------- */
.mock {
  background: var(--mock-bg);
  border: 1px solid var(--mock-line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
  font-size: 13px;
}
.mock-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--mock-line);
}
.mock-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); }
.mock-bar .mock-title {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.mock-body { padding: 18px; }
.mock-post {
  border: 1px solid var(--mock-line);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 12px;
}
.mock-post-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.mock-chip {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid var(--mock-line);
  border-radius: 3px;
  color: var(--ink-mute);
}
.mock-chip.red { border-color: var(--red-line); color: var(--red); background: var(--red-dim); }
.mock-copy { color: var(--ink-mute); font-size: 0.8rem; line-height: 1.55; }
.mock-copy strong { color: var(--ink); }
.mock-img {
  height: 84px;
  border-radius: 6px;
  margin: 10px 0;
  background:
    linear-gradient(135deg, var(--red-dim) 0%, transparent 55%),
    repeating-linear-gradient(45deg, var(--mock-line) 0 1px, transparent 1px 12px);
  border: 1px solid var(--mock-line);
  display: grid;
  place-items: center;
}
.mock-img span {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.mock-actions { display: flex; gap: 8px; margin-top: 12px; }
.mock-btn {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.72rem;
  padding: 7px 14px;
  border-radius: 4px;
  border: 1px solid var(--mock-line);
  color: var(--ink-mute);
  background: transparent;
}
.mock-btn.approve { background: var(--red); border-color: var(--red); color: #fff; }
.mock-meter { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
.mock-meter-row { display: grid; grid-template-columns: 90px 1fr 42px; gap: 10px; align-items: center; }
.mock-meter-row .lbl {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  text-transform: uppercase;
}
.mock-meter-row .val {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--ink-mute);
  text-align: right;
}
.mock-track { height: 5px; background: var(--mock-line); border-radius: 99px; overflow: hidden; }
.mock-fill { height: 100%; background: var(--red); border-radius: 99px; }

/* ---------- Credibility band ---------- */
.cred {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
}
.cred-cell {
  padding: clamp(26px, 3.4vw, 44px);
  border-left: 1px solid var(--line);
}
.cred-cell:first-child { border-left: none; }
.cred-cell .big {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 10px;
}
.cred-cell .big em { font-style: normal; color: var(--red); }
.cred-cell p { color: var(--ink-mute); font-size: 0.92rem; }

/* ---------- Steps (How it works) ---------- */
.steps { border-top: 1px solid var(--line); }
.step {
  display: grid;
  grid-template-columns: minmax(0, 120px) minmax(0, 420px) 1fr;
  gap: clamp(18px, 3vw, 48px);
  padding: clamp(32px, 4.6vw, 56px) 0;
  border-bottom: 1px solid var(--line);
}
.step-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3.2rem);
  color: var(--red);
  line-height: 1;
}
.step h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); margin-bottom: 8px; }
.step .when {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.step-body p { color: var(--ink-mute); max-width: 62ch; }
.step-body p + p { margin-top: 12px; }
.step-body ul { margin: 12px 0 0 18px; color: var(--ink-mute); }
.step-body li { margin-bottom: 7px; }
.step-body li::marker { color: var(--red); }

/* ---------- Pricing ---------- */
.price-note {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 26px;
}
.price-note::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--red);
  flex: none;
}
.tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--line);
  align-items: stretch;
}
.tier {
  padding: clamp(30px, 3.6vw, 48px);
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  position: relative;
}
.tier:first-child { border-left: none; }
.tier.popular { background: var(--bg-card); }
.tier-flag {
  position: absolute;
  top: 0; right: 0;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--red);
  color: #fff;
  padding: 6px 12px;
}
.tier-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.tier-for {
  color: var(--ink-faint);
  font-size: 0.88rem;
  margin-bottom: 22px;
  min-height: 2.8em;
}
.tier-price {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 3.6vw, 3.2rem);
  letter-spacing: -0.02em;
  line-height: 1;
}
.tier-price .per {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}
.tier-annual {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
  margin: 10px 0 26px;
}
.tier ul {
  list-style: none;
  margin-bottom: 30px;
  flex: 1;
}
.tier li {
  padding: 10px 0 10px 26px;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  color: var(--ink-mute);
  position: relative;
}
.tier li strong { color: var(--ink); font-weight: 600; }
.tier li::before {
  content: "";
  position: absolute;
  left: 2px; top: 18px;
  width: 10px; height: 2px;
  background: var(--red);
}
.tier .btn { justify-content: center; }

.agency-band {
  margin-top: clamp(40px, 5vw, 64px);
  border: 1px solid var(--red-line);
  background: linear-gradient(120deg, var(--red-dim), transparent 60%);
  padding: clamp(32px, 4.6vw, 56px);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}
.agency-band h3 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); margin-bottom: 10px; }
.agency-band p { color: var(--ink-mute); max-width: 56ch; }

/* ---------- FAQ ---------- */
.faq-list { border-top: 1px solid var(--line); max-width: 860px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .mark {
  flex: none;
  width: 34px; height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--ink-mute);
  transition: transform 0.25s, color 0.2s, border-color 0.2s;
}
.faq-item[open] summary .mark { transform: rotate(45deg); color: var(--red); border-color: var(--red-line); }
.faq-item .faq-a { padding: 0 0 28px; color: var(--ink-mute); max-width: 66ch; }
.faq-item .faq-a p + p { margin-top: 12px; }

/* ---------- Brief (sample strategy brief) ---------- */
.brief-note {
  border: 1px solid var(--red-line);
  background: var(--red-dim);
  padding: 16px 20px;
  font-size: 0.92rem;
  color: var(--ink-mute);
  margin-bottom: 40px;
  max-width: 860px;
}
.brief-note strong { color: var(--red); }
.brief-doc {
  max-width: 860px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.brief-watermark {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  z-index: 1;
}
.brief-watermark span {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(4rem, 12vw, 9rem);
  letter-spacing: 0.1em;
  color: var(--ink);
  opacity: 0.045;
  transform: rotate(-24deg);
  text-transform: uppercase;
}
.brief-inner { position: relative; z-index: 2; padding: clamp(28px, 5vw, 64px); }
.brief-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 28px;
}
.brief-head .brand-mark { font-size: 0.95rem; }
.brief-meta {
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  line-height: 1.8;
}
.brief-title { font-size: clamp(1.6rem, 3vw, 2.3rem); margin-bottom: 6px; }
.brief-client {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 30px;
}
.brief-section { margin-bottom: 34px; }
.brief-section h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
  margin-bottom: 16px;
}
.brief-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.brief-stat {
  border: 1px solid var(--line);
  padding: 14px 16px;
}
.brief-stat .n {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}
.brief-stat .n em { font-style: normal; color: var(--red); font-size: 0.85rem; }
.brief-stat .l {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 4px;
}
.brief-list { list-style: none; }
.brief-list li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.94rem;
  color: var(--ink-mute);
}
.brief-list li strong { color: var(--ink); }
.brief-list .tick { color: var(--red); font-family: var(--font-mono); }
.brief-two { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(20px, 4vw, 44px); }
.brief-footer {
  display: flex;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 2px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

/* ---------- Demo / embed ---------- */
.demo-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(36px, 6vw, 80px);
  align-items: start;
}
.demo-points { list-style: none; margin-top: 30px; }
.demo-points li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  color: var(--ink-mute);
}
.demo-points li:last-child { border-bottom: 1px solid var(--line); }
.demo-points .k { font-family: var(--font-mono); color: var(--red); font-size: 0.85rem; padding-top: 2px; }
.demo-points strong { color: var(--ink); }
.embed-shell {
  background: var(--bg-card);
  border: 1px solid var(--line);
  min-height: 560px;
  display: grid;
  place-items: center;
  padding: 24px;
}
.embed-placeholder {
  text-align: center;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 2.1;
  border: 1.5px dashed var(--line-strong);
  padding: 60px 40px;
  width: 100%;
}

/* ---------- CTA band ---------- */
.cta-band {
  border-top: 1px solid var(--line);
  padding: clamp(72px, 10vw, 130px) 0;
  text-align: center;
}
.cta-band h2 { max-width: 20ch; margin: 0 auto 20px; }
.cta-band .lede { margin: 0 auto 36px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: clamp(48px, 6vw, 80px) 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 56px;
}
.footer-brand p {
  color: var(--ink-faint);
  font-size: 0.9rem;
  max-width: 34ch;
  margin-top: 14px;
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 11px; }
.footer-col a {
  text-decoration: none;
  color: var(--ink-mute);
  font-size: 0.92rem;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--ink); }
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--ink-faint);
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Print (sample brief) ---------- */
@media print {
  .site-header, .site-footer, .cta-band, .brief-note, .no-print { display: none !important; }
  body { background: #fff; color: #111; }
  .brief-doc { box-shadow: none; border-color: #ddd; max-width: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .hero-grid { grid-template-columns: 1fr; }
  .flywheel-shell { max-width: 560px; margin: 0 auto; }
  .cred { grid-template-columns: 1fr 1fr; }
  .cred-cell:nth-child(odd) { border-left: none; }
  .cred-cell { border-top: 1px solid var(--line); }
  .cred-cell:nth-child(-n+2) { border-top: none; }
  .tiers { grid-template-columns: 1fr; }
  .tier { border-left: none; border-top: 1px solid var(--line); }
  .tier:first-child { border-top: none; }
  .demo-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px var(--pad) 28px;
    gap: 18px;
  }
  .nav-links.open { display: flex; }
  .menu-btn { display: block; }
  .split { grid-template-columns: 1fr; }
  .split-panel + .split-panel { border-left: none; border-top: 1px solid var(--line); }
  .feat-row { grid-template-columns: 44px 1fr; }
  .feat-row p { grid-column: 2; }
  .step { grid-template-columns: 1fr; gap: 12px; }
  .brief-stats { grid-template-columns: 1fr 1fr; }
  .brief-two { grid-template-columns: 1fr; }
  .agency-band { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .cred { grid-template-columns: 1fr; }
  .cred-cell { border-left: none; }
  .cred-cell:nth-child(-n+2) { border-top: 1px solid var(--line); }
  .cred-cell:first-child { border-top: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
}

/* ============================================================
   Social platform icons (brand colors)
   ============================================================ */
.social-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.social-row .s-ic {
  width: 30px; height: 30px;
  display: grid;
  place-items: center;
  transition: transform 0.2s ease;
}
.social-row .s-ic:hover { transform: translateY(-3px); }
.social-row .s-lbl {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.s-ic svg { width: 100%; height: 100%; }

/* ============================================================
   Hero stage: animated social views scene
   ============================================================ */
.hero-stage {
  position: relative;
  min-height: 540px;
}
.stage-card {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 16px 18px;
  will-change: transform;
  animation: drift 7s ease-in-out infinite;
}
.stage-card:nth-child(2n) { animation-duration: 8.5s; animation-delay: -2s; }
.stage-card:nth-child(3n) { animation-duration: 9.5s; animation-delay: -4s; }
@keyframes drift {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-14px); }
}
@media (prefers-reduced-motion: reduce) {
  .stage-card { animation: none; }
}
.stage-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.stage-head .s-ic { width: 26px; height: 26px; }
.stage-head .who {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.stage-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.9rem;
  letter-spacing: -0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stage-lbl {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 5px;
}
.stage-up { color: var(--red); font-size: 0.95rem; vertical-align: 4px; }
.stage-spark { display: block; margin-top: 10px; }
.stage-spark polyline {
  fill: none;
  stroke: var(--red);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.stage-post {
  width: 190px;
}
.stage-post .ph {
  height: 92px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, var(--red-dim), transparent 60%),
    repeating-linear-gradient(45deg, var(--line) 0 1px, transparent 1px 12px);
  margin-bottom: 10px;
  display: grid;
  place-items: center;
}
.stage-post .ph span {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.stage-post .cap {
  font-size: 0.74rem;
  color: var(--ink-mute);
  line-height: 1.5;
}
.stage-glow {
  position: absolute;
  inset: 10% 6%;
  background: radial-gradient(ellipse at 55% 45%, var(--red-dim), transparent 65%);
  filter: blur(10px);
  z-index: -1;
}

/* ============================================================
   App shots: high-fidelity light-UI product recreations
   (the product is a light UI; these stay light in both themes,
   like a real screenshot would)
   ============================================================ */
.app-shot {
  --as-bg: #faf9f7;
  --as-panel: #ffffff;
  --as-ink: #1c1b1a;
  --as-mute: #8a8781;
  --as-line: #eceae5;
  --as-red: #ef5253;
  background: var(--as-bg);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
  color: var(--as-ink);
  font-size: 13px;
  line-height: 1.45;
}
.app-shot * { color: inherit; }
.as-browser {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #efede9;
  padding: 10px 14px;
  border-bottom: 1px solid var(--as-line);
}
.as-browser .dot { width: 9px; height: 9px; border-radius: 50%; background: #d8d5cf; }
.as-browser .url {
  margin-left: 10px;
  background: #ffffff;
  border: 1px solid var(--as-line);
  border-radius: 6px;
  padding: 3px 12px;
  font-family: var(--font-mono);
  font-size: 0.64rem;
  color: var(--as-mute);
}
.as-body { display: grid; grid-template-columns: 168px 1fr; min-height: 380px; }
.as-side {
  border-right: 1px solid var(--as-line);
  background: var(--as-panel);
  padding: 14px 10px;
}
.as-side .grp {
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--as-mute);
  margin: 14px 8px 6px;
}
.as-side .itm {
  padding: 6px 10px;
  border-radius: 7px;
  font-size: 0.76rem;
  font-weight: 500;
  color: #4a4844;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.as-side .itm.on { background: #17150f; color: #fff; }
.as-side .itm .cnt {
  background: #fdeaea;
  color: var(--as-red);
  font-size: 0.62rem;
  font-weight: 600;
  border-radius: 8px;
  padding: 1px 7px;
}
.as-main { padding: 18px 20px; }
.as-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  gap: 12px;
  flex-wrap: wrap;
}
.as-crumb { font-size: 0.78rem; color: var(--as-mute); }
.as-crumb strong { color: var(--as-ink); font-weight: 600; }
.as-gen {
  background: #17150f;
  color: #fff;
  font-weight: 600;
  font-size: 0.72rem;
  padding: 7px 14px;
  border-radius: 8px;
  white-space: nowrap;
}
.as-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px; }
.as-card {
  background: var(--as-panel);
  border: 1px solid var(--as-line);
  border-radius: 10px;
  padding: 12px;
}
.as-card .k {
  font-size: 0.66rem;
  color: var(--as-mute);
}
.as-card .v {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.45rem;
  letter-spacing: -0.01em;
  color: var(--as-ink);
}
.as-card .s { font-size: 0.62rem; color: var(--as-mute); }
.as-panel {
  background: var(--as-panel);
  border: 1px solid var(--as-line);
  border-radius: 10px;
  padding: 14px;
}
.as-panel + .as-panel { margin-top: 10px; }
.as-panel h6 {
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--as-ink);
}
.as-bar-row {
  display: grid;
  grid-template-columns: 84px 1fr 40px;
  gap: 10px;
  align-items: center;
  margin-bottom: 7px;
}
.as-bar-row .l {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--as-mute);
}
.as-bar-row .v { font-size: 0.66rem; color: var(--as-ink); font-weight: 600; text-align: right; }
.as-track { height: 6px; border-radius: 99px; background: #f1efe9; overflow: hidden; }
.as-fill { height: 100%; border-radius: 99px; background: var(--as-red); }
.as-post {
  border: 1px solid var(--as-line);
  border-radius: 10px;
  padding: 12px 14px;
  background: var(--as-panel);
}
.as-post + .as-post { margin-top: 10px; }
.as-post-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.as-post-top .date { font-weight: 700; font-size: 0.78rem; }
.as-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.as-tag {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
  background: #f4f2ec;
  color: #6b6862;
}
.as-tag.video { background: #fdeaea; color: var(--as-red); }
.as-tag.ig { background: #fceef4; color: #c13584; }
.as-tag.fb { background: #e9f1fe; color: #1877f2; }
.as-tag.li { background: #e8f0f8; color: #0a66c2; }
.as-tag.yt { background: #fdecec; color: #ff0000; }
.as-tag.gbp { background: #e9f3ec; color: #188038; }
.as-cap { font-size: 0.76rem; color: #3f3d38; }
.as-hash { font-size: 0.68rem; color: #4c7bd9; margin-top: 4px; }
.as-brief {
  margin-top: 8px;
  border-left: 3px solid #cfe0f5;
  background: #f4f8fd;
  border-radius: 0 8px 8px 0;
  padding: 8px 12px;
  font-size: 0.68rem;
  color: #55636f;
}
.as-brief strong { color: #2f6fce; }
.as-actions { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
.as-btn {
  font-size: 0.66rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 7px;
  border: 1px solid var(--as-line);
  background: #fff;
  color: #4a4844;
}
.as-btn.primary { background: var(--as-red); border-color: var(--as-red); color: #fff; }
.as-donut { display: flex; align-items: center; gap: 14px; }
.as-donut .legend { font-size: 0.66rem; color: var(--as-mute); line-height: 1.9; }
.as-donut .legend b { color: var(--as-ink); }
.as-donut .legend i {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 2px;
  margin-right: 6px;
  font-style: normal;
}
.shot-caption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.shot-caption strong { color: var(--red); font-weight: 600; }

/* ============================================================
   Footer: legal links + agency logo
   ============================================================ */
.footer-legal { flex-direction: column; align-items: flex-start; gap: 20px; }
.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  list-style: none;
}
.legal-links a {
  text-decoration: none;
  color: var(--ink-mute);
  font-size: 0.82rem;
  transition: color 0.2s;
}
.legal-links a:hover { color: var(--ink); }
.footer-base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  width: 100%;
}
.ks-logo { display: inline-flex; align-items: center; }
.ks-logo img { height: 26px; width: auto; opacity: 0.85; transition: opacity 0.2s; }
.ks-logo:hover img { opacity: 1; }
[data-theme="light"] .ks-logo img { filter: brightness(0); }

/* Legal content pages */
.legal-page { max-width: 780px; }
.legal-page h2 { font-size: clamp(1.3rem, 2vw, 1.7rem); margin: 40px 0 14px; }
.legal-page p, .legal-page li { color: var(--ink-mute); }
.legal-page ul { margin: 12px 0 12px 20px; }
.legal-page li { margin-bottom: 8px; }
.legal-updated {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  margin-top: 16px;
}

@media (max-width: 1020px) {
  .hero-stage { min-height: 480px; max-width: 620px; margin: 0 auto; }
}
@media (max-width: 820px) {
  .as-body { grid-template-columns: 1fr; }
  .as-side { display: none; }
  .as-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .hero-stage { min-height: 430px; }
  .stage-post { width: 160px; }
}

/* Focus visibility */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--red);
  color: #fff;
  padding: 10px 18px;
  z-index: 999;
  text-decoration: none;
  font-weight: 700;
}
.skip-link:focus { left: 12px; top: 12px; }