/* ============================================================
   sitekit — components: topbar, theme seg, hero, cards, pills,
   quotes, footer. Consumes tokens.css only.
   ============================================================ */

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
  transition: background-color var(--transition), border-color var(--transition);
}
.topbar .inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; padding: 13px 22px; max-width: 920px; margin: 0 auto; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 12px; font-size: 17px; font-weight: 700; letter-spacing: .01em; color: var(--head); text-decoration: none; min-width: 0; }
.brand .logo { height: 36px; width: auto; display: block; flex: none; }
html[data-theme="light"] .brand .logo { filter: brightness(0) opacity(.8); }  /* near-white logo → readable on light */
.brand .dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--trim); margin: 0 3px; vertical-align: 2px; transition: background-color var(--transition); }
.nav { display: flex; flex-direction: column; align-items: center; gap: 3px; flex-wrap: wrap; }
.nav a { font-size: 13.5px; font-weight: 400; color: var(--tag); text-decoration: none; transition: color .25s ease; white-space: nowrap; line-height: 1.3; }
.nav a:hover, .nav a:focus-visible { color: var(--head); }
.nav-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: currentColor; margin: 0 3px; vertical-align: 2px; opacity: .9; }
.nav-eyebrow {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--tag); opacity: .75; line-height: 1;
}
.top-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* theme segmented control — sliding highlight thumb */
.seg { position: relative; display: flex; gap: 2px; background: var(--card); border: 1px solid var(--card-edge); border-radius: var(--radius-pill); padding: 3px; transition: background-color var(--transition), border-color var(--transition); }
.seg-thumb {
  position: absolute; top: 3px; bottom: 3px; left: 3px; width: 0;
  border-radius: var(--radius-pill); background: var(--btn1-bg);
  box-shadow: 0 1px 3px var(--shadow);
  pointer-events: none; z-index: 0;
  transition: transform .28s var(--ease), width .28s var(--ease), background-color var(--transition);
}
.seg button {
  position: relative; z-index: 1;
  border: none; background: transparent; font-family: var(--font);
  font-size: 10px; font-weight: 600; border-radius: var(--radius-pill);
  padding: 4px 10px; cursor: pointer; color: var(--tag);
  transition: color .2s ease;
}
.seg button.on { color: var(--btn1-fg); }

/* ---------- hero ---------- */
.hero { padding: clamp(56px, 9vw, 88px) 0 44px; }
.kicker {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--head); transition: color var(--transition);
}
h1 {
  font-size: clamp(36px, 6.4vw, 60px); font-weight: 800; letter-spacing: -.02em;
  line-height: 1.07; max-width: 14ch; margin: 14px 0 18px; color: var(--ink);
  transition: color var(--transition);
}
h1 .em { color: var(--head); transition: color var(--transition); }
.sub { font-size: 15.5px; max-width: 58ch; color: var(--tag); transition: color var(--transition); }
.sub strong { color: var(--ink); font-weight: 600; }

/* stat chips */
.stats { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 24px; }
.stat {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .06em;
  border: 1px solid var(--pill-b); background: var(--pill-bg); color: var(--pill-fg);
  border-radius: var(--radius-pill); padding: 5px 12px;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}

/* buttons */
.btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 32px; }
.btn {
  border: none; border-radius: var(--radius-pill); padding: 14px 24px;
  font-family: var(--font); font-size: 14.5px; font-weight: 600;
  cursor: pointer; text-decoration: none;
  transition: transform .08s ease, box-shadow .15s ease,
              background-color var(--transition), color var(--transition), border-color var(--transition);
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--btn1-bg); color: var(--btn1-fg); box-shadow: 0 3px 14px var(--shadow); }
.btn-accent  { background: var(--btn2-bg); color: var(--btn2-fg); box-shadow: 0 3px 14px var(--shadow); }
.btn-ghost   { background: transparent; color: var(--ghost-c); border: 1.5px solid var(--ghost-b); }

/* ---------- cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.card {
  display: flex; flex-direction: column; gap: 10px;
  background: var(--card); border: 1px solid var(--card-edge);
  border-top: 3px solid var(--card-top); border-radius: var(--radius); padding: 20px;
  text-decoration: none;
  transition: background-color var(--transition), border-color var(--transition),
              transform .12s ease, box-shadow .2s ease;
}
a.card:hover { transform: translateY(-3px); box-shadow: 0 10px 26px var(--shadow); }
.card .pill {
  align-self: flex-start; font-family: var(--font-mono); font-size: 9.5px; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
  background: var(--pill-bg); color: var(--pill-fg); border: 1px solid var(--pill-b);
  border-radius: var(--radius-pill); padding: 3px 10px;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}
.card .pill.archived { background: var(--btn2-bg); color: var(--btn2-fg); border-color: transparent; }
.card h2 { font-size: 16.5px; font-weight: 700; color: var(--head); transition: color var(--transition); }
.card .tag { font-family: var(--font-mono); font-size: 11px; color: var(--trim); }
.card .desc { font-size: 13px; color: var(--tag); line-height: 1.55; transition: color var(--transition); }
.card .go { margin-top: auto; font-family: var(--font-mono); font-size: 11.5px; font-weight: 700; color: var(--head); transition: color var(--transition); }

/* ---------- quotes ---------- */
.quote {
  margin-top: 18px; background: var(--card); border: 1px solid var(--card-edge);
  border-radius: var(--radius); padding: 22px 24px;
  font-size: 14.5px; color: var(--tag); line-height: 1.65;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}
.quote b { color: var(--head); font-weight: 600; transition: color var(--transition); }
.quote .who { display: block; margin-top: 10px; font-family: var(--font-mono); font-size: 11px; color: var(--tag); opacity: .85; }

/* ---------- footer ---------- */
footer { margin-top: 56px; padding: 26px 0 44px; border-top: 1px solid var(--rule); text-align: center; transition: border-color var(--transition); }
footer .line { font-size: 12.5px; color: var(--tag); transition: color var(--transition); }
footer .line a { color: var(--head); text-decoration: none; }
footer .line a:hover { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--trim); }
footer .fine { margin-top: 8px; font-size: 12px; color: var(--tag); opacity: .85; transition: color var(--transition); }
footer .fine a { color: var(--head); text-decoration: none; }
footer .fine a:hover { text-decoration: underline; text-underline-offset: 3px; }
footer .copyright { margin-top: 14px; font-family: var(--font-mono); font-size: 10.5px; color: var(--tag); opacity: .75; transition: color var(--transition); }

@media (max-width: 560px) {
  .topbar .inner { padding: 10px 16px; }
  .top-actions { gap: 8px; }
  .hero { padding-top: 54px; }
}