/* =============================================================
   GraphEdge Analytics — Marketing Site
   Aesthetic: Obsidian + electric-lime + editorial serif
   ============================================================= */

:root {
  /* Surface */
  --bg:        #0a0b0e;
  --bg-soft:   #101217;
  --paper:    #12141a;
  --paper-2:   #171a22;
  --border:   rgba(255,255,255,0.08);
  --border-soft: rgba(255,255,255,0.05);
  --border-strong: rgba(255,255,255,0.14);

  /* Ink */
  --text:     #ecedf0;
  --text-dim: #b5b8c3;
  --muted:    #81859a;
  --faint:    #5a5d6e;

  /* Accent */
  --accent:      #d4ff4f;
  --accent-ink:  #0a0b0e;
  --accent-dim:  rgba(212, 255, 79, 0.15);
  --accent-glow: rgba(212, 255, 79, 0.40);

  /* Warm secondary */
  --amber:  #ff9b4f;

  /* Type */
  --font-display: "Instrument Serif", "Times New Roman", serif;
  --font-body:    "Figtree", "Inter", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, Consolas, monospace;

  /* Layout */
  --max: 1240px;
  --gutter: clamp(20px, 4vw, 48px);
  --radius: 14px;
  --radius-sm: 8px;

  /* Shadow */
  --shadow-glow: 0 0 0 1px rgba(212,255,79,0.14), 0 20px 50px -20px rgba(212,255,79,0.25);
}

/* -----------  Reset  ----------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.55;
  font-size: 16px;
  letter-spacing: -0.005em;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
ul, ol { list-style: none; }

/* -----------  Ambient background  ----------- */
#ambient-graph {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.5 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

main, header, footer, .nav { position: relative; z-index: 2; }

/* -----------  Utility  ----------- */
.mono      { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.04em; text-transform: uppercase; }
.muted     { color: var(--muted); }
.hl        { color: var(--accent); font-style: italic; font-family: var(--font-display); font-weight: 400; }

em         { font-style: italic; color: var(--accent); font-family: var(--font-display); font-weight: 400; }
.section-h2 em,
.hero-headline em { color: var(--accent); }

/* =============================================================
   NAV
   ============================================================= */
.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 18px var(--gutter);
  max-width: var(--max);
  margin: 0 auto;
  border-bottom: 1px solid var(--border-soft);
  position: sticky;
  top: 0;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(10, 11, 14, 0.72);
  z-index: 50;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.brand-mark { color: var(--accent); }
.brand-text {
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}
.brand-text em { color: var(--text); font-family: var(--font-display); font-style: italic; }
.nav-links {
  display: flex;
  gap: 22px;
  margin-left: auto;
  font-size: 0.92rem;
  color: var(--text-dim);
}
.nav-links a { transition: color 0.2s; }
.nav-links a:hover { color: var(--accent); }
.nav-cta {
  display: flex;
  gap: 14px;
  align-items: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(0.85); }
}

/* -----------  Buttons  ----------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 99px;
  font-weight: 500;
  font-size: 0.93rem;
  letter-spacing: -0.005em;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
  white-space: nowrap;
  line-height: 1;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 30px -4px var(--accent-glow);
}
.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* =============================================================
   HERO
   ============================================================= */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px var(--gutter) 60px;
  position: relative;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 99px;
  margin-bottom: 34px;
  background: rgba(255,255,255,0.01);
}
.eyebrow-tag { color: var(--accent); }
.eyebrow-sep { color: var(--faint); }

.hero-headline {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 0.95;
  letter-spacing: -0.025em;
  margin-bottom: 26px;
  max-width: 14ch;
}
.hero-headline em {
  font-style: italic;
  display: inline-block;
  position: relative;
}
.hero-headline em::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0.08em;
  width: 100%;
  height: 0.08em;
  background: var(--accent);
  opacity: 0.25;
  transform: scaleX(0);
  transform-origin: left;
  animation: underline 1.4s 0.6s forwards cubic-bezier(0.6, 0, 0.1, 1);
}
@keyframes underline {
  to { transform: scaleX(1); }
}

.hero-sub-prelude {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--accent);
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  margin-bottom: 14px;
  letter-spacing: -0.005em;
}

.hero-sub {
  color: var(--text-dim);
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  max-width: 60ch;
  line-height: 1.55;
  margin-bottom: 36px;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

/* Hero graph viz */
.hero-viz {
  position: relative;
  margin-top: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(212,255,79,0.02), transparent 60%), var(--paper);
  padding: 40px 20px 20px;
  overflow: hidden;
}
.hero-viz::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, var(--paper) 1px, transparent 1px),
    linear-gradient(180deg, var(--paper) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
  background-color: transparent;
  opacity: 0.7;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.5), transparent 75%);
  pointer-events: none;
}
.hero-graph {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 18px rgba(212,255,79,0.12));
  position: relative;
  z-index: 1;
}
.hero-graph .node circle {
  fill: var(--accent);
  transition: r 0.3s;
}
.hero-graph .node text {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: var(--text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero-graph .edge {
  stroke-dasharray: 6 4;
  animation: dash-march 20s linear infinite;
}
@keyframes dash-march {
  to { stroke-dashoffset: -200; }
}

.hero-graph .pulse {
  filter: drop-shadow(0 0 8px var(--accent));
}

.viz-meta {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(14, 16, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: 99px;
  font-size: 0.72rem;
  color: var(--text-dim);
  backdrop-filter: blur(8px);
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: 0;
  z-index: 3;
}
.viz-meta .meta-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--text-dim);
}
.viz-meta .meta-dot.accent { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.viz-meta-1 { top: 24px; left: 24px; }
.viz-meta-2 { top: 24px; right: 24px; }
.viz-meta-3 { bottom: 24px; left: 50%; transform: translateX(-50%); }

/* Trust strip */
.trust-strip {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 34px;
  padding-top: 30px;
  border-top: 1px solid var(--border-soft);
  flex-wrap: wrap;
}
.trust-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.trust-items {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 0.9rem;
  font-family: var(--font-display);
  font-style: italic;
}
.trust-items .dot { color: var(--faint); }

/* =============================================================
   SECTION HEADER (shared)
   ============================================================= */
.section-header {
  max-width: 860px;
  margin: 0 auto 64px;
  padding: 0 var(--gutter);
  text-align: left;
}

.section-kicker {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 24px;
}
.kicker-num {
  color: var(--accent);
  font-size: 0.78rem;
}

.section-h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.section-lede {
  color: var(--text-dim);
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  max-width: 68ch;
  line-height: 1.6;
}

/* =============================================================
   WHY / COMPARE
   ============================================================= */
.why {
  max-width: var(--max);
  margin: 0 auto;
  padding: 100px 0 80px;
}

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 0 var(--gutter);
}

.compare-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--paper);
  padding: 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.compare-before {
  background: linear-gradient(180deg, rgba(255,255,255,0.015), transparent), var(--paper);
}
.compare-after {
  background: linear-gradient(180deg, rgba(212,255,79,0.04), transparent 70%), var(--paper);
  border-color: rgba(212, 255, 79, 0.22);
  box-shadow: 0 0 0 1px rgba(212,255,79,0.04), 0 30px 60px -40px rgba(212,255,79,0.25);
}
.compare-after::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(135deg, rgba(212,255,79,0.3), transparent 30%, transparent 70%, rgba(212,255,79,0.2));
  -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.compare-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: 10px;
}
.compare-tag.accent { color: var(--accent); }
.compare-head h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.6rem;
  margin-bottom: 4px;
}
.compare-cap {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin-bottom: 20px;
}
.compare-viz {
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 18px;
}
.compare-notes {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
}
.compare-notes li {
  font-size: 0.88rem;
  color: var(--text-dim);
  padding-left: 16px;
  position: relative;
}
.compare-notes li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--muted);
}
.compare-after .compare-notes li::before { color: var(--accent); }

/* =============================================================
   PLATFORM
   ============================================================= */
.platform {
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px 0 80px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  /* 1px gap over a border-colored background creates hairline dividers between cards */
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 0 var(--gutter);
}

.feature-card {
  background: var(--paper);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  transition: background 0.3s;
}
.feature-card:hover { background: var(--paper-2); }
.feature-card:hover .feature-icon { color: var(--accent); transform: rotate(-4deg); }

.feature-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.12em;
}
.feature-num span::before {
  content: "—";
  margin-right: 10px;
  color: var(--faint);
}
.feature-icon {
  color: var(--text);
  margin-bottom: 6px;
  transition: color 0.3s, transform 0.3s;
}
.feature-card h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.55rem;
  letter-spacing: -0.01em;
  line-height: 1.15;
}
.feature-card p {
  color: var(--text-dim);
  font-size: 0.98rem;
  line-height: 1.55;
}
.feature-meta {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
  color: var(--accent);
  font-size: 0.7rem;
}

/* =============================================================
   USE CASES
   ============================================================= */
.use-cases {
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px 0 80px;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 0 var(--gutter);
}

.case-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.3s, transform 0.3s;
  position: relative;
  overflow: hidden;
}
.case-card::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 160px; height: 160px;
  background: radial-gradient(circle at top right, var(--accent-dim), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.case-card:hover {
  border-color: rgba(212,255,79,0.35);
  transform: translateY(-2px);
}
.case-card:hover::after { opacity: 0.6; }

.case-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.case-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 99px;
  color: var(--text-dim);
  text-transform: uppercase;
}
.case-id {
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}
.case-card h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.7rem;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.case-card p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.5;
  flex-grow: 1;
}
.case-graph {
  padding: 8px 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  margin: 6px 0;
}
.case-stat {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.case-stat .stat-label {
  color: var(--muted);
  font-size: 0.68rem;
}
.case-stat .stat-value {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

/* =============================================================
   HOW IT WORKS
   ============================================================= */
.how {
  max-width: var(--max);
  margin: 0 auto;
  padding: 80px 0 80px;
}

.steps {
  padding: 0 var(--gutter);
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
.step {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  position: relative;
  align-items: start;
}
.step:last-child { border-bottom: 1px solid var(--border); }

.step-index {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: sticky;
  top: 100px;
}
.step-index .mono {
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.14em;
}
.step-label {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-style: italic;
  color: var(--text);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.01em;
}

.step-body h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin-bottom: 12px;
  max-width: 22ch;
}
.step-body p {
  color: var(--text-dim);
  font-size: 1.02rem;
  max-width: 58ch;
  margin-bottom: 20px;
  line-height: 1.55;
}
.step-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.step-chips span {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 99px;
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
  text-transform: none;
  transition: border-color 0.2s, color 0.2s;
}
.step-chips span:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* =============================================================
   CONTACT
   ============================================================= */
.contact {
  max-width: var(--max);
  margin: 60px auto 0;
  padding: 80px var(--gutter);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 60px;
  align-items: start;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 56px);
  background:
    radial-gradient(circle at 20% 10%, rgba(212,255,79,0.06), transparent 50%),
    var(--paper);
  position: relative;
  overflow: hidden;
}

.contact-copy .section-kicker { margin-bottom: 18px; }
.contact-copy .section-h2 { margin-bottom: 16px; }

.contact-lede {
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.55;
  margin-bottom: 36px;
  max-width: 42ch;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 18px;
  border-top: 1px dashed var(--border);
  padding-top: 24px;
}
.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.info-label {
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
}
.info-item a {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  transition: color 0.2s;
  display: inline-block;
  width: fit-content;
}
.info-item a:hover { color: var(--accent); }
.info-value {
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}
.form-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--border);
  margin-bottom: 6px;
}
.form-label {
  color: var(--muted);
  font-size: 0.68rem;
}
.form-to {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.field input,
.field select,
.field textarea {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--text);
  transition: border-color 0.2s;
  border-radius: 0;
  outline: none;
}
.field textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
}
.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14'><path d='M3 5l4 4 4-4' stroke='%23d4ff4f' stroke-width='1.4' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0 center;
  padding-right: 24px;
  cursor: pointer;
}
.field select option { background: var(--paper); color: var(--text); }
.field input:focus,
.field select:focus,
.field textarea:focus { border-color: var(--accent); }
.field input::placeholder,
.field textarea::placeholder { color: var(--faint); }

.form-submit {
  margin-top: 8px;
  align-self: flex-start;
}
.form-note {
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  margin-top: 4px;
}
.form-note.success { color: var(--accent); }
.form-note.error   { color: #ff7a55; }

/* =============================================================
   FOOTER
   ============================================================= */
.footer {
  max-width: var(--max);
  margin: 80px auto 0;
  padding: 60px var(--gutter) 40px;
  border-top: 1px solid var(--border);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  padding-bottom: 40px;
  flex-wrap: wrap;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 1.3rem;
}
.footer-brand em { color: var(--text); font-style: italic; }
.footer-tag {
  color: var(--text-dim);
  font-size: 0.95rem;
  max-width: 46ch;
  line-height: 1.55;
  font-family: var(--font-display);
  font-style: italic;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid var(--border-soft);
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-h {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 500;
}
.footer-col a {
  color: var(--text-dim);
  font-size: 0.92rem;
  transition: color 0.2s;
  width: fit-content;
}
.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  color: var(--muted);
  flex-wrap: wrap;
  gap: 10px;
}

/* =============================================================
   SCROLL REVEALS
   ============================================================= */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =============================================================
   RESPONSIVE
   ============================================================= */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .compare { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; gap: 16px; }
  .step-index { position: static; flex-direction: row; align-items: baseline; }
  .step-label { font-size: 1.6rem; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { flex-direction: column; }
  .viz-meta-1, .viz-meta-2 { position: static; display: inline-flex; margin-bottom: 8px; }
  .viz-meta-3 { position: static; transform: none; margin-top: 8px; }
}

@media (max-width: 640px) {
  .hero { padding: 60px var(--gutter) 40px; }
  .hero-headline { font-size: clamp(2.5rem, 12vw, 4rem); }
  .field-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-cta .btn-ghost { display: none; }
  .nav { gap: 16px; }
  .hero-viz { padding: 60px 12px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}