/* VynceLabs site styles. Every colour, font, space, radius and shadow comes from brand/tokens.css. */

/* ---------- Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--space-12) + var(--space-8)); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, p, ul { margin: 0; }
ul[role="list"] { list-style: none; padding: 0; }
img, svg { display: block; }

a { color: var(--link); text-underline-offset: 3px; }

:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--radius-sm); }

.muted { color: var(--ink-muted); }
.measure { max-width: 65ch; }

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: calc(-1 * var(--space-12));
  z-index: 20;
  padding: var(--space-2) var(--space-4);
  background: var(--surface-raised);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  text-decoration: none;
}
.skip-link:focus { top: var(--space-4); }

.container {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--space-4);
}
@media (min-width: 720px) { .container { padding-inline: var(--space-8); } }

/* ---------- Icons (Lucide, 1.75px stroke) ---------- */
.icon {
  width: 20px;
  height: 20px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-lg { width: 24px; height: 24px; }

/* ---------- Theme-aware logos and icons ---------- */
.logo-dark,
.icon-sun { display: none; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-light,
  :root:not([data-theme="light"]) .icon-moon { display: none; }
  :root:not([data-theme="light"]) .logo-dark,
  :root:not([data-theme="light"]) .icon-sun { display: block; }
}
:root[data-theme="dark"] .logo-light,
:root[data-theme="dark"] .icon-moon { display: none; }
:root[data-theme="dark"] .logo-dark,
:root[data-theme="dark"] .icon-sun { display: block; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  min-height: calc(var(--space-12) + var(--space-4));
}

.brand { display: inline-flex; padding-block: var(--space-2); border-radius: var(--radius-sm); }
.wordmark { width: 144px; height: auto; }
.wordmark-sm { width: 120px; height: auto; }

.site-nav { margin-left: auto; }
.nav-list { display: flex; gap: var(--space-1); list-style: none; padding: 0; }
.nav-list a {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--ink-muted);
  text-decoration: none;
  transition: color 150ms ease-out, background-color 150ms ease-out;
}
.nav-list a:hover { color: var(--ink); background: var(--surface-raised); }

.header-actions { display: flex; gap: var(--space-2); }

.icon-button {
  display: inline-grid;
  place-items: center;
  width: calc(var(--space-8) + var(--space-2));
  height: calc(var(--space-8) + var(--space-2));
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background-color 150ms ease-out, border-color 150ms ease-out;
}
.icon-button:hover { background: var(--surface-raised); border-color: var(--border-strong); }

.menu-toggle { display: none; }
.menu-toggle .icon-close { display: none; }
.menu-toggle[aria-expanded="true"] .icon-menu { display: none; }
.menu-toggle[aria-expanded="true"] .icon-close { display: block; }

@media (max-width: 767px) {
  .header-inner { gap: var(--space-4); }
  .header-actions { margin-left: auto; }
  .menu-toggle { display: inline-grid; }

  .site-nav {
    display: none;
    position: absolute;
    inset: 100% 0 auto 0;
    margin: 0;
    padding: var(--space-2) var(--space-4) var(--space-4);
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
  }
  .site-nav.is-open { display: block; }
  .nav-list { flex-direction: column; }
  .nav-list a { padding: var(--space-3); color: var(--ink); }
}

/* ---------- Buttons and links ---------- */
.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: calc(var(--space-12) - var(--space-1));
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 150ms ease-out, border-color 150ms ease-out, box-shadow 150ms ease-out, transform 150ms ease-out;
}
.button-primary { background: var(--vynce); color: var(--on-vynce); }
.button-primary:hover { box-shadow: var(--shadow-lg); transform: translateY(-1px); }
.button-secondary { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.button-secondary:hover { background: var(--surface-raised); }
.button:focus-visible { border-radius: var(--radius-md); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--link);
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: text-decoration-color 150ms ease-out;
}
.text-link:hover { text-decoration-color: currentColor; }

/* ---------- Node grid motif ---------- */
.node-grid {
  background-image: radial-gradient(circle, var(--line) 1px, transparent 1.5px);
  background-size: var(--space-4) var(--space-4);
  background-position: center;
}
.node-grid-dark {
  background-color: var(--graphite);
  background-image: radial-gradient(circle, var(--border-strong) 1px, transparent 1.5px);
}

/* ---------- Hero ---------- */
.hero { padding-block: var(--space-8) var(--space-12); }

.hero-inner {
  display: grid;
  gap: var(--space-8);
  align-items: center;
}

.hero-copy { display: grid; gap: var(--space-6); }
.hero-title { color: var(--ink); }
.lede { color: var(--ink-muted); max-width: 45ch; }

.hero-visual {
  position: relative;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.hero-mark {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 34%;
  height: auto;
  max-width: 200px;
}

.node {
  position: absolute;
  width: var(--space-2);
  height: var(--space-2);
  border-radius: var(--radius-full);
  background: var(--border-strong);
  transform: translate(-50%, -50%);
}
.node-a { left: 18%; top: 25%; }
.node-b { left: 82%; top: 75%; }
.node-spark {
  left: 78%;
  top: 22%;
  width: var(--space-3);
  height: var(--space-3);
  background: var(--spark);
  animation: spark-pulse 250ms ease-out 600ms 1 both;
}

/* One pulse to say something smart just happened. Never loops. */
@keyframes spark-pulse {
  0%   { transform: translate(-50%, -50%) scale(1); }
  50%  { transform: translate(-50%, -50%) scale(1.6); }
  100% { transform: translate(-50%, -50%) scale(1); }
}
@media (prefers-reduced-motion: reduce) { .node-spark { animation: none; } }

/* Phones: the headline inherits the smaller display style from its wrapper. */
@media (max-width: 599px) {
  .hero-title { font-size: inherit; line-height: inherit; letter-spacing: inherit; }
}

@media (min-width: 900px) {
  .hero { padding-block: var(--space-12) calc(var(--space-12) * 2); }
  .hero-inner { grid-template-columns: 7fr 5fr; gap: var(--space-12); }
  .hero-visual { aspect-ratio: 1 / 1; }
}

/* ---------- Sections ---------- */
.section {
  padding-block: var(--space-8);
  border-top: 1px solid var(--line);
}
@media (min-width: 720px) { .section { padding-block: calc(var(--space-12) * 1.5); } }

.section-head { display: grid; gap: var(--space-3); margin-bottom: var(--space-8); }
.eyebrow { color: var(--vynce); text-transform: uppercase; }

/* ---------- Cards ---------- */
.card {
  display: grid;
  align-content: start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
@media (min-width: 720px) { .card { padding: var(--space-6); } }

.card-grid { display: grid; gap: var(--space-4); }
@media (min-width: 720px) { .card-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); } }

.icon-tile {
  display: inline-grid;
  place-items: center;
  width: var(--space-12);
  height: var(--space-12);
  margin-bottom: var(--space-2);
  border-radius: var(--radius-md);
  background: var(--vynce-soft);
  color: var(--vynce);
}
.icon-tile-lg {
  width: calc(var(--space-12) + var(--space-4));
  height: calc(var(--space-12) + var(--space-4));
  border-radius: var(--radius-lg);
}

.badge,
.tag {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  text-transform: uppercase;
}
.badge-spark { background: var(--spark); color: var(--on-spark); }
.tag { background: var(--vynce-soft); color: var(--vynce); border-radius: var(--radius-sm); }

/* ---------- Products ---------- */
.product-grid { display: grid; gap: var(--space-4); }
@media (min-width: 900px) { .product-grid { grid-template-columns: 2fr 1fr; gap: var(--space-6); } }

.product-card .text-link { margin-top: var(--space-2); }
.product-feature { gap: var(--space-4); }
@media (min-width: 720px) { .product-feature { padding: var(--space-8); } }
.product-top { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--space-4); }
.product-top .icon-tile { margin-bottom: 0; }
.byline { margin-top: calc(-1 * var(--space-3)); }

/* ---------- About ---------- */
.about-inner { display: grid; gap: var(--space-8); }
.about-head { margin-bottom: 0; gap: var(--space-4); }

.principles { display: grid; gap: var(--space-6); }
.principles li {
  display: grid;
  gap: var(--space-2);
  padding-left: var(--space-6);
  position: relative;
}
.principles li::before {
  content: "";
  position: absolute;
  left: 0;
  top: var(--space-3);
  width: var(--space-2);
  height: var(--space-2);
  border-radius: var(--radius-full);
  background: var(--vynce);
}

@media (min-width: 900px) {
  .about-inner { grid-template-columns: 7fr 5fr; gap: var(--space-12); align-items: start; }
  .principles { padding-top: calc(var(--space-12) + var(--space-3)); }
}

/* ---------- Contact ---------- */
.contact-card {
  padding: var(--space-8) var(--space-4);
  background-color: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}
@media (min-width: 720px) { .contact-card { padding: var(--space-12); } }

.contact-copy { display: grid; gap: var(--space-4); max-width: 640px; }
.contact-copy .actions { margin-top: var(--space-2); gap: var(--space-4) var(--space-6); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding-block: var(--space-8); }

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4) var(--space-8);
}

.footer-links { display: flex; flex-wrap: wrap; gap: var(--space-6); }
.footer-links a { color: var(--ink-muted); text-decoration: none; }
.footer-links a:hover { color: var(--ink); }

.site-footer .text-caption { margin-left: auto; }
@media (max-width: 599px) {
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .site-footer .text-caption { margin-left: 0; }
}