/* ==========================================================================
   Lakeside Analytics — shared stylesheet
   Editorial, near-monochrome, one accent. No external requests.
   ========================================================================== */

:root {
  --bg:            #fcfcfb;
  --bg-sunk:       #f4f5f4;
  --surface:       #ffffff;
  --ink:           #16191d;
  --ink-soft:      #4a5158;
  --ink-faint:     #6e767e;
  --rule:          #e3e5e3;
  --rule-strong:   #cdd1cf;
  --accent:        #0f5f6a;
  --accent-hover:  #0a4750;
  --accent-wash:   #eef4f5;
  --focus:         #0f5f6a;

  --measure:       66ch;
  --page:          1080px;
  --radius:        5px;

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:           #101316;
    --bg-sunk:      #16191d;
    --surface:      #191d21;
    --ink:          #e9ecef;
    --ink-soft:     #a8b0b6;
    --ink-faint:    #838b92;
    --rule:         #272c31;
    --rule-strong:  #3a4045;
    --accent:       #6fc9d6;
    --accent-hover: #9adde7;
    --accent-wash:  #16262a;
    --focus:        #6fc9d6;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--surface);
  color: var(--ink);
  padding: 0.6rem 1rem;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- Layout ---------- */

.wrap {
  max-width: var(--page);
  margin: 0 auto;
  padding-inline: clamp(1.25rem, 5vw, 2.5rem);
}

.prose { max-width: var(--measure); }

section { padding-block: clamp(3.5rem, 8vw, 6rem); }

.band {
  background: var(--bg-sunk);
  border-block: 1px solid var(--rule);
}

/* ---------- Type ---------- */

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 640;
  letter-spacing: -0.021em;
  line-height: 1.18;
  text-wrap: balance;
}

h1 { font-size: clamp(2.15rem, 5.4vw, 3.35rem); letter-spacing: -0.032em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.15rem); letter-spacing: -0.026em; }
h3 { font-size: 1.13rem; line-height: 1.35; }
h4 { font-size: 1rem; }

p { margin: 0 0 1.15rem; }
p:last-child { margin-bottom: 0; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.735rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 0.9rem;
  display: block;
}

.lede {
  font-size: clamp(1.08rem, 1.9vw, 1.24rem);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 60ch;
}

.section-intro { margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-intro h2 + p { margin-top: 1rem; color: var(--ink-soft); }

/* ---------- Header / nav ---------- */

.site-header {
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 66px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.022em;
  font-size: 1.02rem;
  white-space: nowrap;
}
.brand:hover { color: var(--ink); }
.brand .mark { flex: none; color: var(--accent); }

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 1.9rem);
  font-size: 0.94rem;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-block: 0.35rem;
  border-bottom: 1.5px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.nav a:hover { color: var(--ink); border-bottom-color: var(--rule-strong); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.68rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--bg);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 560;
  text-decoration: none;
  line-height: 1.2;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--bg);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-strong);
}
.btn-ghost:hover {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* ---------- Hero ---------- */

.hero { padding-block: clamp(4rem, 10vw, 7.5rem) clamp(3rem, 7vw, 5rem); }
.hero h1 { max-width: 19ch; }
.hero .lede { margin-top: 1.5rem; }

/* ---------- Credibility strip ---------- */

.strip {
  border-top: 1px solid var(--rule);
  padding-block: 1.65rem;
}
.strip-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.strip-items {
  list-style: none;
  margin: 0.85rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 2rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- Card grid ---------- */

.grid {
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* Four-up grids read better as 2x2 than as 3 + an orphan. */
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }

.card {
  background: var(--surface);
  padding: clamp(1.5rem, 3vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.card .num {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.97rem;
  line-height: 1.58;
}

/* ---------- Service detail blocks ---------- */

.service {
  display: grid;
  grid-template-columns: minmax(0, 7.5rem) minmax(0, 1fr);
  gap: clamp(1.25rem, 4vw, 3rem);
  padding-block: clamp(2.25rem, 5vw, 3.25rem);
  border-top: 1px solid var(--rule);
}
.service:last-child { border-bottom: 1px solid var(--rule); }

.service-index {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-top: 0.4rem;
}

.service-body h3 { font-size: 1.32rem; letter-spacing: -0.023em; }
.service-body > p {
  margin-top: 0.85rem;
  color: var(--ink-soft);
  max-width: 62ch;
}

.checklist {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
  max-width: 62ch;
}
.checklist li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--ink-soft);
  font-size: 0.97rem;
  line-height: 1.55;
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 1.5px;
  background: var(--accent);
}

/* ---------- Writing list ---------- */

.entry-group { margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.entry-group:last-child { margin-bottom: 0; }

.entry-group > h2 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.005em;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--rule-strong);
}

.entries { list-style: none; margin: 0; padding: 0; }

.entry {
  display: grid;
  grid-template-columns: minmax(0, 8.5rem) minmax(0, 1fr);
  gap: clamp(0.5rem, 3vw, 2rem);
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--rule);
}

.entry-meta {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  padding-top: 0.28rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.entry-role { color: var(--accent); }

.entry h3 a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1.5px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.entry h3 a:hover { color: var(--accent-hover); border-bottom-color: var(--accent-hover); }

.entry p {
  margin: 0.45rem 0 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
  line-height: 1.58;
  max-width: 64ch;
}

/* ---------- Engagement / callout ---------- */

.callout {
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  background: var(--surface);
  padding: clamp(1.75rem, 4vw, 2.75rem);
}

.cta { text-align: left; }
.cta h2 { max-width: 22ch; }
.cta p { margin-top: 1rem; color: var(--ink-soft); max-width: 56ch; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 2.5rem 3rem;
  color: var(--ink-faint);
  font-size: 0.89rem;
  line-height: 1.6;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.25rem 2rem;
}
.site-footer a { color: var(--ink-soft); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  body { font-size: 16.5px; }

  .site-header .wrap {
    justify-content: flex-start;
    padding-block: 0.75rem;
  }
  .nav { width: 100%; gap: 1.1rem; }

  .service,
  .entry {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }
  .service-index, .entry-meta { padding-top: 0; }
  .entry-meta { flex-direction: row; gap: 0.85rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}