/* SparkShare.io marketing site — static CSS.
   Aesthetic ported from the Atlasora web app: warm "paper register" editorial
   surface, serif display headings with a red italic accent, uppercase
   letter-spaced monospace micro-labels in a muted green, thin technical rules.
   Light mode only. No box-shadow anywhere. */

:root {
  /* paper / register editorial surface (Atlasora --paper set) */
  --paper: #fcfaf4;
  --paper-deep: #f6f3ea;
  --white: #ffffff;
  --rule: #e4e0d3;
  --rule-strong: #d6d1c1;

  /* ink */
  --ink: #0f172a;
  --ink-soft: #334155;
  --ink-muted: #64748b;
  --ink-faint: #94a3b8;

  /* brand + accents (Atlasora forest / signal / ember light ground) */
  --forest: #203b38;
  --forest-hover: #2a4d49;
  --signal: #1b6b4d; /* muted terminal green — micro-labels */
  --signal-soft: #2f7d5f;
  --oxide: #a8452e; /* red italic heading accent */
  --label: #8a8474; /* muted tan micro-label alt */

  /* dark footer band (Atlasora --void-2) */
  --void-2: #1a2120;
  --on-dark: #e8eeea;
  --on-dark-soft: #a3b0aa;
  --on-dark-label: #899891;

  /* kept so inline `color: var(--brand)` on the ".io" wordmark still resolves */
  --brand: var(--forest);

  --radius: 4px;
  --radius-lg: 6px;
  --maxw: 1120px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas,
    monospace;
  --font-serif: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink-soft);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.14;
}

/* the signature Atlasora treatment: a red italic accent word inside a heading */
h1 em,
h2 em,
h3 em,
.hero h1 em {
  font-style: italic;
  color: var(--oxide);
}

a {
  color: var(--forest);
  text-decoration: none;
}

a:hover {
  color: var(--forest-hover);
  text-decoration: underline;
}

img {
  max-width: 100%;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* Skip link for keyboard users */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--forest);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}

/* Focus visibility for accessibility */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: rgba(252, 250, 244, 0.9);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  position: sticky;
  top: 0;
  z-index: 40;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 1.22rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.brand:hover {
  color: var(--ink);
  text-decoration: none;
}

/* Single tight wordmark: the flex `gap` on .brand only spaces the mark from
   the text, never splits "SparkShare" from ".io". */
.wordmark {
  white-space: nowrap;
}

.wordmark .tld {
  color: var(--brand);
}

/* brand mark is now the greenish composIQ square, an <img> */
.brand-mark {
  width: 30px;
  height: 30px;
  display: inline-block;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-family: var(--font-mono);
  color: var(--ink-muted);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links a:hover {
  color: var(--forest);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  padding: 8px 10px;
  cursor: pointer;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease,
    color 0.15s ease;
}

.btn-primary {
  background: var(--forest);
  color: #fff;
}

.btn-primary:hover {
  background: var(--forest-hover);
  color: #fff;
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  border-color: var(--rule-strong);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--forest);
  color: var(--forest);
  text-decoration: none;
}

/* nav CTA reads as a compact pill */
.nav-links .btn {
  font-family: var(--font);
  font-size: 0.9rem;
  padding: 9px 16px;
  text-transform: none;
  letter-spacing: 0;
}

.nav-links .btn-primary {
  color: #fff;
}

/* ---------- Micro-label (mono, uppercase, muted green) ---------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 20px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--paper-deep) 0%, var(--paper) 100%);
  border-bottom: 1px solid var(--rule);
  padding: 92px 0 78px;
}

/* Near-neighbour constellation, ported from Atlasora's NeighbourField and held
   deliberately muted: a quiet technical backdrop, never a foreground element.
   Painted by main.js on a <canvas>; no framework, no build step. */
.hero-field {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  z-index: 0;
}

.hero > .container {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.6rem);
  line-height: 1.06;
  margin: 0 0 20px;
  max-width: 18ch;
}

.hero p.lead {
  font-size: 1.16rem;
  color: var(--ink-soft);
  max-width: 62ch;
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- Sections ---------- */
.section {
  padding: 84px 0;
}

.section-alt {
  background: var(--paper-deep);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.section-head {
  max-width: 64ch;
  margin-bottom: 48px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}

.section-head h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
  margin: 0 0 14px;
}

.section-head p {
  font-size: 1.06rem;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- Product cards ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.product-card .tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 18px;
}

.product-card h3 {
  font-size: 1.7rem;
  margin: 0 0 4px;
}

.product-card .product-domain {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  margin: 0 0 16px;
  font-variant-numeric: tabular-nums;
}

.product-card p {
  color: var(--ink-soft);
  margin: 0 0 18px;
}

.product-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}

.product-card li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 0.96rem;
}

.product-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--signal);
}

.product-card .card-foot {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pricing-note {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
}

/* Placeholders are filled with verified facts; render as normal text. */
.ph {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  white-space: normal;
}

/* ---------- Trust / value row ---------- */
.value-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.value-item {
  padding: 28px;
  background: var(--paper);
}

.value-item h4 {
  margin: 0 0 10px;
  font-size: 1.12rem;
}

.value-item p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- Contact ---------- */
.contact-card {
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  padding: 34px;
  background: var(--white);
  max-width: 660px;
}

.contact-row {
  display: flex;
  gap: 10px;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
  flex-wrap: wrap;
}

.contact-row:last-child {
  border-bottom: none;
}

.contact-row .label {
  min-width: 140px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--label);
  padding-top: 2px;
}

.contact-row .value {
  color: var(--ink-soft);
  flex: 1;
}

/* ---------- Legal / policy pages ---------- */
.legal {
  padding: 60px 0 90px;
}

.legal .container {
  max-width: 820px;
}

.legal h1 {
  font-size: clamp(2rem, 4vw, 2.7rem);
  margin: 0 0 8px;
}

.legal .updated {
  font-family: var(--font-mono);
  color: var(--ink-muted);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  margin: 0 0 36px;
}

.legal h2 {
  font-size: 1.4rem;
  margin: 44px 0 12px;
}

.legal p,
.legal li {
  color: var(--ink-soft);
}

.legal ul {
  padding-left: 22px;
}

.legal li {
  margin-bottom: 8px;
}

.legal .back {
  display: inline-block;
  margin-bottom: 28px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.callout {
  border: 1px solid var(--rule);
  border-left: 2px solid var(--signal);
  background: var(--paper-deep);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 0.96rem;
  color: var(--ink-soft);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--void-2);
  color: var(--on-dark-soft);
  padding: 58px 0 34px;
  border-top: 1px solid var(--rule);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.site-footer .brand {
  color: var(--on-dark);
}

.site-footer .brand:hover {
  color: var(--on-dark);
}

.site-footer p {
  color: var(--on-dark-soft);
  font-size: 0.95rem;
  margin: 14px 0 0;
  max-width: 42ch;
}

.footer-col h5 {
  font-family: var(--font-mono);
  color: var(--on-dark-label);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 16px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col a {
  color: var(--on-dark-soft);
  font-size: 0.95rem;
}

.footer-col a:hover {
  color: var(--on-dark);
}

.footer-bottom {
  border-top: 1px solid rgba(232, 238, 234, 0.14);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--on-dark-label);
}

.site-footer .footer-bottom a {
  color: var(--on-dark-soft);
}

.site-footer .footer-bottom a:hover {
  color: var(--on-dark);
}

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--rule);
    padding: 8px 0;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    padding: 0 24px;
  }

  .nav-links a {
    display: block;
    padding: 13px 0;
    border-bottom: 1px solid var(--rule);
  }

  .nav-links li:last-child a {
    border-bottom: none;
  }

  .hero {
    padding: 64px 0 54px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}