/* ============================================
   NERDVISTA — Shared Stylesheet
   nerdvista.com
   ============================================ */

/* ── Variables ────────────────────────────────────────── */
:root {
  --nv-paper:      #FAFAF7;
  --nv-cream:      #F2EEE4;
  --nv-ink:        #1A1D24;
  --nv-ink-soft:   #2A2D36;
  --nv-ash:        #6B6E78;
  --nv-mist:       #D0D3DC;
  --nv-slate:      #3D4F85;
  --nv-slate-dark: #1E2748;

  --font-display: 'Instrument Serif', 'Iowan Old Style', Georgia, serif;
  --font-sans:    'Geist', -apple-system, BlinkMacSystemFont, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ── Reset ────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--nv-paper);
  color: var(--nv-ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── Nav ──────────────────────────────────────────────── */
.nv-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 40px;
  background: var(--nv-paper);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms ease, background 200ms ease;
}
.nv-nav.is-scrolled {
  border-bottom-color: var(--nv-mist);
}

.nv-lockup {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nv-mark {
  color: var(--nv-ink);
  flex-shrink: 0;
}
.nv-wordmark {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--nv-ink);
}

.nv-nav__right {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 400;
  color: var(--nv-ink-soft);
}
.nv-nav__right a {
  transition: color 140ms ease;
}
.nv-nav__right a:hover { color: var(--nv-ink); }

.nv-nav__cta {
  background: var(--nv-ink);
  color: var(--nv-paper) !important;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: background 140ms ease !important;
}
.nv-nav__cta:hover { background: var(--nv-slate-dark) !important; }

/* ── Page wrapper ─────────────────────────────────────── */
.nv-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  padding-top: 88px; /* nav height */
}

/* ── Hero ─────────────────────────────────────────────── */
.nv-hero {
  padding: 56px 0 48px;
  position: relative;
}

.nv-hero__meta {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
  font-size: 13px;
  color: var(--nv-ash);
  letter-spacing: 0.01em;
}
.nv-hero__metarow {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nv-hero__right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.nv-hero__byline {
  font-size: 12px;
  color: var(--nv-ash);
  letter-spacing: 0.01em;
}
.nv-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #4ade80;
  flex-shrink: 0;
}

/* Giant headline */
.nv-giant {
  display: flex;
  flex-direction: column;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(64px, 10vw, 148px);
  line-height: 0.93;
  letter-spacing: -0.035em;
  color: var(--nv-ink);
  margin-bottom: 48px;
}
.nv-giant__line--indent  { padding-left: clamp(48px, 8vw, 120px); }
.nv-giant__line--indent2 { padding-left: clamp(96px, 16vw, 240px); }
.nv-giant__line--italic  { font-style: italic; color: var(--nv-slate); }

/* Hero foot */
.nv-hero__foot {
  display: grid;
  grid-template-columns: minmax(0, 480px) auto;
  align-items: end;
  gap: 40px;
}
.nv-lead {
  font-size: 16px;
  color: var(--nv-ink-soft);
  line-height: 1.65;
  max-width: 440px;
}
.nv-hero__ctas {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nv-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--nv-ink);
  color: var(--nv-paper);
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: background 140ms var(--ease-out), transform 140ms var(--ease-out);
}
.nv-btn:hover {
  background: var(--nv-slate-dark);
  transform: translateY(-1px);
}

.nv-link-subtle {
  font-size: 14px;
  color: var(--nv-ink);
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  transition: color 140ms ease;
}
.nv-link-subtle:hover { color: var(--nv-ash); }

/* Sticker — dark pill badge */
.nv-sticker {
  display: inline-flex;
  background: var(--nv-ink);
  color: var(--nv-paper);
  border-radius: 12px;
  padding: 14px 20px;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
  white-space: nowrap;
}
.nv-sticker em {
  font-family: var(--font-display);
  font-size: 20px;
  font-style: italic;
  text-transform: none;
  letter-spacing: -0.01em;
  font-weight: 400;
}
.nv-sticker__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4ade80;
  flex-shrink: 0;
  box-shadow: 0 0 0 2px rgba(74, 222, 128, 0.25);
}

/* ── Apps index ───────────────────────────────────────── */
.nv-apps {
  margin-top: 100px;
  padding-top: 20px;
  border-top: 1px solid var(--nv-ink);
}
.nv-apps__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}
.nv-eyebrow {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--nv-ash);
  font-weight: 500;
}
.nv-apps__count {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--nv-ash);
  font-size: 14px;
}

.nv-index { list-style: none; }
.nv-index__row {
  border-bottom: 1px solid var(--nv-mist);
  transition: background 200ms var(--ease-out);
}
.nv-index__row:hover { background: rgba(26,29,36,0.025); }

.nv-index__link {
  display: grid;
  grid-template-columns: 48px minmax(180px, 1fr) minmax(180px, 2fr) auto auto;
  align-items: center;
  gap: 28px;
  padding: 28px 8px;
  transition: padding 200ms var(--ease-out);
}
.nv-index__row:hover .nv-index__link { padding-left: 20px; }

.nv-index__n {
  font-family: 'Geist', ui-monospace, monospace;
  font-size: 12px;
  color: var(--nv-ash);
  letter-spacing: 0.04em;
}
.nv-index__name {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 44px);
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--nv-ink);
  transition: color 200ms ease;
}
.nv-index__row:hover .nv-index__name {
  color: var(--row-accent, var(--nv-slate));
  font-style: italic;
}
.nv-index__tag {
  font-size: 15px;
  color: var(--nv-ash);
  line-height: 1.4;
}
.nv-index__status {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--nv-ash);
  font-weight: 500;
  white-space: nowrap;
}
.nv-index__arrow {
  font-size: 18px;
  color: var(--nv-mist);
  transition: color 200ms ease, transform 200ms var(--ease-out);
}
.nv-index__row:hover .nv-index__arrow {
  color: var(--row-accent, var(--nv-slate));
  transform: translateX(5px);
}

/* Dim placeholder rows */
.nv-index__row--dim .nv-index__name,
.nv-index__row--dim .nv-index__tag,
.nv-index__row--dim .nv-index__status { opacity: 0.35; }
.nv-index__row--dim:hover { background: transparent; }
.nv-index__row--dim .nv-index__link { cursor: default; }
.nv-index__row--dim .nv-index__arrow { display: none; }

/* ── Footer ───────────────────────────────────────────── */
footer {
  max-width: 1280px;
  margin: 120px auto 0;
  padding: 0 40px 48px;
}
.nv-footer__big {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: end;
  padding-bottom: 40px;
  border-top: 1px solid var(--nv-mist);
  padding-top: 64px;
}
.nv-footer__big > span {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.5vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--nv-ink);
  max-width: 520px;
}
.nv-footer__mail {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.5vw, 32px);
  letter-spacing: -0.01em;
  color: var(--nv-ink);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--nv-ink);
  padding-bottom: 2px;
  transition: color 140ms ease, border-color 140ms ease;
}
.nv-footer__mail:hover { color: var(--nv-slate); border-color: var(--nv-slate); }

.nv-footer__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding-top: 28px;
  font-size: 13px;
  color: var(--nv-ash);
  border-top: 1px solid var(--nv-mist);
  margin-top: 40px;
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 820px) {
  .nv-index__link {
    grid-template-columns: 32px 1fr auto;
    gap: 14px;
    padding: 20px 8px;
  }
  .nv-index__tag   { grid-column: 2 / 4; font-size: 14px; }
  .nv-index__status { grid-column: 2 / 4; }
  .nv-index__arrow { display: none; }
}

@media (max-width: 640px) {
  .nv-nav { padding: 20px 24px; }
  .nv-nav__right a:not(.nv-nav__cta) { display: none; }
  .nv-page { padding: 0 24px; padding-top: 76px; }
  .nv-hero { padding: 48px 0 40px; }
  .nv-hero__foot { grid-template-columns: 1fr; }
  .nv-hero__ctas { justify-content: flex-start; }

  footer { padding: 0 24px 40px; }
  .nv-footer__big { grid-template-columns: 1fr; }
  .nv-footer__meta { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ── Entrance animations ──────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.nv-nav        { animation: fadeIn 400ms ease both; }
.nv-hero__meta { animation: fadeUp 500ms var(--ease-out) 100ms both; }
.nv-giant .nv-giant__line:nth-child(1) { animation: fadeUp 600ms var(--ease-out) 180ms both; }
.nv-giant .nv-giant__line:nth-child(2) { animation: fadeUp 600ms var(--ease-out) 260ms both; }
.nv-giant .nv-giant__line:nth-child(3) { animation: fadeUp 600ms var(--ease-out) 340ms both; }
.nv-giant .nv-giant__line:nth-child(4) { animation: fadeUp 600ms var(--ease-out) 420ms both; }
.nv-hero__foot { animation: fadeUp 500ms var(--ease-out) 560ms both; }
.nv-sticker    { animation: fadeUp 500ms var(--ease-out) 120ms both; }
.nv-apps       { animation: fadeUp 500ms var(--ease-out) 640ms both; }

/* ── Accessibility ────────────────────────────────────── */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--nv-slate);
  outline-offset: 3px;
  border-radius: 4px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
    animation-delay: 0ms !important;
  }
}