/* swindex — site stylesheet
 * Visual tokens adopted from the same palette/typography as villagesql.com
 * (per project direction). Layout authored fresh.
 */

/* -------------------------------------------------------------------------
 * Design tokens
 * ------------------------------------------------------------------------- */
:root {
  --pelican-purple: #9500BF;
  --dark-purple:    #630080;
  --bright-purple:  #B500BA;
  --medium-purple:  #9933CC;
  --light-purple:   #CC66FF;
  --midnight:       #1F062A;
  --white:          #FFFFFF;
  --gray-1:         #293636;
  --gray-2:         #707070;
  --gray-3:         #ADACAC;
  --gray-4:         #EAEAEA;

  --bg:             #1F062A;
  --bg-alt:         #150420;
  --bg-panel:       #293636;
  --bg-code:        #1F062A;
  --text:           #FFFFFF;
  --text-dim:       #ADACAC;
  --text-faint:     #707070;
  --accent:         #9500BF;
  --accent-bright:  #CC66FF;
  --border:         rgba(255, 255, 255, 0.10);
  --border-strong:  rgba(255, 255, 255, 0.18);

  --space-xs:  8px;
  --space-sm:  16px;
  --space-md:  24px;
  --space-lg:  32px;
  --space-xl:  48px;
  --space-2xl: 64px;
  --space-3xl: 96px;
  --space-4xl: 128px;

  --font-heading: 'Space Grotesk', system-ui, -apple-system, Segoe UI, sans-serif;
  --font-body:    system-ui, -apple-system, Segoe UI, Arial, sans-serif;
  --font-code:    'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 18px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a { color: var(--accent-bright); text-decoration: none; }
a:hover { color: var(--white); }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 var(--space-md);
}

p { margin: 0 0 var(--space-md); }

code, pre {
  font-family: var(--font-code);
  font-size: 0.92em;
}

::selection { background: var(--accent); color: var(--white); }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* -------------------------------------------------------------------------
 * Header
 * ------------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(31, 6, 42, 0.85);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.header__inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: var(--space-md); padding-bottom: var(--space-md);
}
.site-nav {
  display: flex; gap: var(--space-lg); align-items: center;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.95rem;
}
.site-nav a {
  color: var(--text-dim);
  transition: color .15s ease;
}
.site-nav a:hover { color: var(--white); }
.site-nav a.ghost {
  color: var(--white);
  border: 1px solid var(--border-strong);
  padding: 8px 14px;
  border-radius: var(--radius);
}
.site-nav a.ghost:hover { border-color: var(--accent-bright); color: var(--accent-bright); }

/* Wordmark */
.wordmark {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--white);
  letter-spacing: -0.02em;
}
.wordmark__glyph {
  width: 28px; height: 28px;
  stroke: var(--accent-bright);
  stroke-width: 1.5;
  fill: var(--midnight);
}
.wordmark__glyph circle { fill: var(--midnight); stroke: var(--accent-bright); }
.wordmark__glyph circle.hub { fill: var(--accent); stroke: var(--accent-bright); }
.wordmark__glyph line { stroke: var(--accent-bright); opacity: 0.6; }

/* -------------------------------------------------------------------------
 * Buttons
 * ------------------------------------------------------------------------- */
.button-group { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  border-radius: var(--radius);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease, border-color .12s ease, color .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn__icon { width: 18px; height: 18px; }

.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 6px 24px rgba(149, 0, 191, 0.30);
}
.btn-primary:hover {
  background: var(--bright-purple);
  color: var(--white);
  box-shadow: 0 10px 28px rgba(149, 0, 191, 0.45);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--accent-bright);
  color: var(--accent-bright);
}

.btn-discord {
  background: #5865F2;
  color: var(--white);
}
.btn-discord:hover { background: #4752c4; color: var(--white); }

/* -------------------------------------------------------------------------
 * Hero
 * ------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: var(--space-3xl) 0 var(--space-2xl);
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 50% at 20% 0%, rgba(149, 0, 191, 0.30), transparent 60%),
    radial-gradient(50% 40% at 100% 30%, rgba(204, 102, 255, 0.18), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero__grid {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}
.hero__title {
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
}
.hero__subtitle {
  font-size: 1.18rem;
  color: var(--text-dim);
  max-width: 56ch;
  margin-bottom: var(--space-lg);
}

.eyebrow {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin: 0 0 var(--space-md);
}

.grad {
  background: linear-gradient(90deg, var(--accent), var(--accent-bright));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

/* Install option cards on the hero right side */
.install-options {
  display: flex; flex-direction: column; gap: var(--space-md);
}
.install-option {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}
.install-option__head {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-sm);
  font-size: 0.95rem;
}
.install-option__head .icon { width: 18px; height: 18px; color: var(--accent-bright); }

.terminal {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.terminal__chrome {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
}
.dot { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.dot--r { background: #ff5f56; }
.dot--y { background: #ffbd2e; }
.dot--g { background: #27c93f; }

.terminal__body {
  display: flex; align-items: flex-start; justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  gap: var(--space-sm);
}
.terminal__body code {
  color: #e0eaea;
  white-space: pre-wrap;
  word-break: break-word;
  flex: 1;
}
.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: color .12s ease, border-color .12s ease;
}
.copy-btn:hover { color: var(--white); border-color: var(--accent-bright); }
.copy-btn .icon { width: 14px; height: 14px; }
.copy-btn--copied { color: #27c93f; border-color: #27c93f; }

/* -------------------------------------------------------------------------
 * Block sections
 * ------------------------------------------------------------------------- */
.block {
  padding: var(--space-3xl) 0;
}
.block.alt { background: var(--bg-alt); }
.block__head { margin-bottom: var(--space-2xl); max-width: 760px; }
.block__head h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
}
.kicker {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin: 0 0 var(--space-sm);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}
.two-col p { color: var(--text-dim); }
.two-col strong { color: var(--white); }

/* -------------------------------------------------------------------------
 * "Four layers" cards
 * ------------------------------------------------------------------------- */
.layers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
}
.layer {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: relative;
  transition: border-color .15s ease, transform .15s ease;
}
.layer:hover { border-color: var(--accent-bright); transform: translateY(-2px); }
.layer__id {
  position: absolute; top: var(--space-sm); right: var(--space-md);
  font-family: var(--font-code);
  color: var(--accent-bright);
  font-size: 1.5rem;
  opacity: 0.5;
}
.layer h3 { margin-bottom: var(--space-sm); font-size: 1.15rem; }
.layer p { color: var(--text-dim); margin: 0; font-size: 0.97rem; }
.muted { color: var(--text-faint); font-weight: 400; }

/* -------------------------------------------------------------------------
 * Feature cards (6 in a grid)
 * ------------------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
}
.feature {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color .15s ease, transform .15s ease;
}
.feature:hover { border-color: var(--accent-bright); transform: translateY(-2px); }
.feature__icon {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(149, 0, 191, 0.18);
  color: var(--accent-bright);
  margin-bottom: var(--space-md);
}
.feature__icon svg { width: 22px; height: 22px; }
.feature h3 { font-size: 1.1rem; margin-bottom: var(--space-xs); }
.feature p { color: var(--text-dim); font-size: 0.97rem; margin: 0; }

/* -------------------------------------------------------------------------
 * Architecture diagram
 * ------------------------------------------------------------------------- */
.diagram pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  overflow: auto;
  color: var(--accent-bright);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* -------------------------------------------------------------------------
 * Code shell
 * ------------------------------------------------------------------------- */
.code-shell {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.code-shell__chrome {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid var(--border);
}
.code-shell__file {
  margin-left: 14px;
  font-family: var(--font-code);
  font-size: 0.85rem;
  color: var(--text-dim);
}
.code-shell pre {
  margin: 0;
  padding: var(--space-lg);
  overflow: auto;
  color: #e0eaea;
  font-size: 0.95rem;
  line-height: 1.65;
}
.tok-k  { color: var(--accent-bright); }
.tok-fn { color: var(--white); }
.tok-s  { color: #b6f1d1; }
.tok-c  { color: var(--text-faint); font-style: italic; }

.footnote { color: var(--text-dim); font-size: 0.95rem; margin-top: var(--space-md); }
.footnote code {
  background: rgba(255, 255, 255, 0.07);
  padding: 2px 6px;
  border-radius: 4px;
}

/* -------------------------------------------------------------------------
 * Research / credibility section
 * ------------------------------------------------------------------------- */
.research {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}
.paper {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-md);
}
.paper__venue {
  font-family: var(--font-code);
  font-size: 0.78rem;
  color: var(--accent-bright);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.paper__title { color: var(--white); font-weight: 500; }
.paper__authors { color: var(--text-faint); font-size: 0.88rem; margin-top: 4px; }

/* -------------------------------------------------------------------------
 * CTA section
 * ------------------------------------------------------------------------- */
.cta { text-align: center; padding: var(--space-3xl) 0; background: var(--bg-alt); }
.cta h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  margin-bottom: var(--space-lg);
}
.cta .button-group { justify-content: center; }

/* -------------------------------------------------------------------------
 * Footer
 * ------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-2xl) 0 var(--space-lg);
  background: var(--midnight);
}
.footer__cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}
.footer__head {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--white);
  margin-bottom: var(--space-sm);
}
.footer__cols a {
  display: block;
  color: var(--text-dim);
  margin-bottom: 8px;
  font-size: 0.95rem;
}
.footer__cols a:hover { color: var(--accent-bright); }
.footer__tag { color: var(--text-dim); margin-top: var(--space-sm); font-size: 0.95rem; }
.footer__legal {
  color: var(--text-faint);
  font-size: 0.85rem;
  text-align: center;
  border-top: 1px solid var(--border);
  padding-top: var(--space-lg);
  margin: 0;
}

/* -------------------------------------------------------------------------
 * Responsive
 * ------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .hero__grid    { grid-template-columns: 1fr; }
  .two-col       { grid-template-columns: 1fr; gap: var(--space-md); }
  .footer__cols  { grid-template-columns: 1fr 1fr; }
  .site-nav      { gap: var(--space-md); font-size: 0.9rem; }
  .site-nav a:not(.ghost) { display: none; }
}
@media (max-width: 560px) {
  .footer__cols  { grid-template-columns: 1fr; }
  .block         { padding: var(--space-2xl) 0; }
  .hero          { padding: var(--space-2xl) 0; }
}