/*!
 * qsm-tokens.css — shared design language for the QSM family of sites.
 * Canonical home: https://qsmxt.github.io/qsm-tokens.css (repo: QSMxT/qsmxt.github.io)
 *
 * Dark-first. Every site loads this once, then sets its own accent:
 *
 *   <link rel="stylesheet" href="https://qsmxt.github.io/qsm-tokens.css">
 *   <style>:root{ --qsm-accent:#f97316; --qsm-accent-2:#fdba74; }</style>
 *
 * The neutral palette, type, spacing, and component classes are shared; only the
 * two accent stops differ per tool (orange=engine, purple=pipeline, blue=browser,
 * green=benchmark). The hub overrides --qsm-title-grad with a multi-hue gradient.
 */

:root {
  /* neutral ink palette (dark-first) */
  --qsm-ink: #0b0e14;
  --qsm-surface: #141922;
  --qsm-surface-2: #1b212c;
  --qsm-border: #262e3a;
  --qsm-text: #e6eaf0;
  --qsm-muted: #9aa4b2;
  --qsm-dim: #6b7683;

  /* accent — overridden per site (default = QSMxT purple) */
  --qsm-accent: #a855f7;
  --qsm-accent-2: #c084fc;
  --qsm-accent-soft: color-mix(in srgb, var(--qsm-accent) 14%, transparent);
  --qsm-accent-ring: color-mix(in srgb, var(--qsm-accent) 34%, transparent);

  /* headline gradient — hub overrides this to a rainbow */
  --qsm-title-grad: linear-gradient(100deg, var(--qsm-accent-2), var(--qsm-accent));

  /* type */
  --qsm-font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --qsm-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* shape */
  --qsm-radius: 12px;
  --qsm-radius-lg: 16px;
  --qsm-shadow: 0 10px 30px -16px rgba(0, 0, 0, .6);
  --qsm-maxw: 72rem;
}

/* ─────────────────────────── Base ─────────────────────────── */

.qsm-page {
  margin: 0;
  background: var(--qsm-ink);
  color: var(--qsm-text);
  font-family: var(--qsm-font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.qsm-wrap { max-width: var(--qsm-maxw); margin: 0 auto; padding: 0 1.25rem; }

/* ─────────────────────────── Site nav ───────────────────────
   Slim in-site bar that sits below the shared ecosystem bar. */

.qsm-subnav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--qsm-ink) 82%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--qsm-border);
}
.qsm-subnav__inner {
  max-width: var(--qsm-maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.qsm-subnav__brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  color: var(--qsm-text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -.01em;
  font-size: 1.05rem;
}
.qsm-subnav__brand img, .qsm-subnav__brand svg { display: block; width: 26px; height: 26px; border-radius: 6px; }
.qsm-subnav__links { display: flex; align-items: center; gap: .35rem; }
.qsm-subnav__links a {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .4rem .7rem; border-radius: 8px;
  color: var(--qsm-muted); text-decoration: none; font-size: .92rem; font-weight: 500;
  transition: color .15s, background-color .15s;
}
.qsm-subnav__links a:hover { color: var(--qsm-text); background: rgba(255, 255, 255, .06); }
.qsm-subnav__links a.is-active { color: var(--qsm-accent-2); }

/* ─────────────────────────── Hero ───────────────────────────
   Centered: badge → gradient headline → lede → CTA row. */

.qsm-hero { position: relative; overflow: hidden; text-align: left; padding: 5rem 0 3.75rem; }
.qsm-hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(760px 340px at 20% -12%, var(--qsm-accent-soft), transparent 60%);
  pointer-events: none;
}
/* matches .qsm-wrap so the hero's left edge lines up with the content below */
.qsm-hero__inner { position: relative; max-width: var(--qsm-maxw); margin: 0 auto; padding: 0 1.25rem; }

.qsm-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .76rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 600;
  color: var(--qsm-accent-2); background: var(--qsm-accent-soft);
  border: 1px solid var(--qsm-accent-ring);
  padding: .3rem .75rem; border-radius: 999px; margin-bottom: 1.4rem;
}

.qsm-title {
  font-size: clamp(2.3rem, 6vw, 3.7rem);
  line-height: 1.04; font-weight: 700; letter-spacing: -.025em; margin: 0 0 1.1rem;
}
.qsm-title .grad {
  background: var(--qsm-title-grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.qsm-lede { max-width: 42rem; margin: 0 0 2rem; font-size: 1.2rem; color: var(--qsm-muted); }
.qsm-lede a { color: var(--qsm-accent-2); text-decoration: none; }
.qsm-lede a:hover { text-decoration: underline; }

.qsm-cta { display: flex; flex-wrap: wrap; gap: .75rem; justify-content: flex-start; }

/* ─────────────────────────── Buttons ─────────────────────────── */

.qsm-btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .7rem 1.2rem; border-radius: 10px;
  font-weight: 600; font-size: .98rem; text-decoration: none; cursor: pointer;
  border: 1px solid transparent;
  transition: transform .14s ease, box-shadow .14s ease, background-color .14s, border-color .14s;
}
.qsm-btn:hover { transform: translateY(-1px); text-decoration: none; }
.qsm-btn--primary {
  color: #0b0e14;
  background: linear-gradient(100deg, var(--qsm-accent-2), var(--qsm-accent));
  box-shadow: 0 8px 22px -8px var(--qsm-accent-ring);
}
.qsm-btn--secondary { color: var(--qsm-text); background: var(--qsm-surface-2); border-color: var(--qsm-border); }
.qsm-btn--secondary:hover { border-color: var(--qsm-accent); }

/* ─────────────────────────── Cards ─────────────────────────── */

.qsm-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1.1rem; }
.qsm-card {
  display: flex; flex-direction: column;
  background: var(--qsm-surface); border: 1px solid var(--qsm-border);
  border-top: 3px solid var(--qsm-card-accent, var(--qsm-accent));
  border-radius: var(--qsm-radius-lg); padding: 1.4rem 1.35rem 1.5rem;
  color: var(--qsm-text); /* cards are <a>; don't inherit the UA link colour */
  text-decoration: none;
  transition: transform .16s ease, border-color .16s ease, background-color .16s ease;
}
.qsm-card:hover {
  transform: translateY(-3px);
  background: var(--qsm-surface-2);
  border-color: var(--qsm-card-accent, var(--qsm-accent));
  text-decoration: none;
}

/* ─────────────────────────── Section + footer ─────────────────────────── */

.qsm-section { padding: 3rem 0; border-top: 1px solid var(--qsm-border); }
.qsm-section h2 { font-size: 1.6rem; letter-spacing: -.015em; margin: 0 0 .6rem; }
.qsm-section p { color: var(--qsm-muted); max-width: 46rem; }

.qsm-footer { border-top: 1px solid var(--qsm-border); color: var(--qsm-dim); font-size: .9rem; padding: 2.2rem 0 3rem; }
.qsm-footer a { color: var(--qsm-muted); text-decoration: none; }
.qsm-footer a:hover { color: var(--qsm-text); }