/* Dan Woodruff Consulting — hand-written CSS.
   Aesthetic: simple, editorial, "engineering instrument". Warm paper, near-black
   ink, one accent, monospace labels. No web fonts, no layout shift, no
   render-blocking work — built to score 100 in Lighthouse / Core Web Vitals. */

:root {
  --paper: #0a0c10;
  --paper-2: #111418;
  --ink: #e7edf3;
  --muted: #8b97a7;
  --line: #1e242c;
  --line-strong: #2c343e;
  --accent: #3ddc84;        /* "passing vitals" green */
  --accent-ink: #06210f;
  --maxw: 1080px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; }

a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }

h1, h2, h3 { margin: 0 0 0.5em; line-height: 1.1; letter-spacing: -0.025em; font-weight: 650; }
h1 { font-size: clamp(2.4rem, 6vw, 4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }

p { margin: 0 0 1em; }
.muted { color: var(--muted); }

/* Monospace label — the engineering signature, used everywhere */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.2em;
}
.eyebrow a { color: var(--accent); }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: var(--ink); color: var(--paper); padding: 10px 16px; z-index: 100; text-decoration: none; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(10, 12, 16, 0.88); backdrop-filter: blur(6px); z-index: 50; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { font-family: var(--mono); font-weight: 600; text-decoration: none; color: var(--ink); font-size: 0.95rem; }
.brand span { color: var(--muted); margin-left: 6px; font-weight: 400; }
.nav ul { list-style: none; display: flex; align-items: center; gap: 26px; margin: 0; padding: 0; }
.nav a:not(.btn) { text-decoration: none; color: var(--muted); font-size: 0.92rem; }
.nav a:not(.btn):hover { color: var(--ink); }
.nav-toggle { display: none; background: none; border: 1px solid var(--line-strong); border-radius: 8px; padding: 4px 12px; font-size: 1.1rem; cursor: pointer; }

/* Buttons */
.btn {
  display: inline-block; font-family: var(--sans); font-weight: 600; font-size: 0.98rem;
  background: var(--ink); color: var(--paper); padding: 13px 24px; border-radius: 4px;
  border: 1px solid var(--ink); text-decoration: none; transition: background 0.15s, color 0.15s;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-sm { padding: 8px 16px; font-size: 0.88rem; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { background: transparent; color: var(--accent); border-color: var(--accent); }

/* Hero */
.hero {
  padding: clamp(64px, 11vw, 130px) 0 clamp(40px, 7vw, 80px);
  background:
    radial-gradient(900px 460px at 85% -10%, rgba(61, 220, 132, 0.10), transparent 60%),
    radial-gradient(700px 420px at 0% 0%, rgba(56, 189, 248, 0.08), transparent 55%);
}
.hero h1 { max-width: 14ch; }
.lead { font-size: clamp(1.1rem, 2.2vw, 1.4rem); color: var(--muted); max-width: 54ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

/* Core Web Vitals — Lighthouse terminal readout (signature element) */
.vitals-term { margin-top: 44px; max-width: 600px; }
.vitals-term .term-body { padding: 16px 18px; }
.vital-line {
  display: grid; grid-template-columns: 96px 86px 1fr; align-items: baseline; gap: 8px;
  margin: 9px 0 0; font-family: var(--mono); font-size: 0.92rem;
}
.vital-line .vk { color: var(--accent); }
.vital-line .vv { color: var(--ink); font-weight: 600; }
.vital-line .vl { color: var(--muted); font-size: 0.78rem; }
.vitals-term .term-pass { margin: 14px 0 0; font-family: var(--mono); font-size: 0.86rem; color: var(--muted); }
.vitals-term .term-pass strong { color: var(--accent); }
@media (max-width: 560px) {
  .vital-line { grid-template-columns: 70px 1fr; }
  .vital-line .vl { grid-column: 1 / -1; }
}

/* Sections divided by hairlines, not boxes */
.section { padding: clamp(56px, 8vw, 96px) 0; border-top: 1px solid var(--line); }
.section-lead { color: var(--muted); max-width: 60ch; margin-top: -0.2em; }

/* Mini quote strip */
.ministrip-wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.mini-quote { margin: 0; }
.mini-quote p { font-size: 0.98rem; color: var(--ink); margin: 0 0 10px; }
.mini-quote cite { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); font-style: normal; }

/* Services — bordered hairline columns, no shadow */
.grid { display: grid; gap: 0; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.services-grid { border-top: 1px solid var(--line); }
.service { padding: 28px 0; border-bottom: 1px solid var(--line); }
.service .num { font-family: var(--mono); font-size: 0.78rem; color: var(--accent); }
.service h3 { margin: 10px 0 8px; }
.service .outcome { font-weight: 600; margin: 0 0 8px; }
.service .muted { font-size: 0.96rem; }
@media (min-width: 760px) {
  .services-grid { display: grid; grid-template-columns: repeat(3, 1fr); column-gap: 40px; }
  .service { border-bottom: none; padding: 8px 0; }
}

/* Results */
.results-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 0; }
.results-list li { padding: 18px 0 18px 30px; border-bottom: 1px solid var(--line); position: relative; }
.results-list li:first-child { border-top: 1px solid var(--line); }
.results-list li::before { content: "↗"; position: absolute; left: 0; top: 18px; color: var(--accent); font-weight: 700; font-family: var(--mono); }

/* Performance proof */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 28px 0; border: 1px solid var(--line-strong); border-radius: 8px; overflow: hidden; }
.metric { text-align: center; padding: 26px 14px; border-right: 1px solid var(--line); }
.metric:last-child { border-right: none; }
.metric .num { font-family: var(--mono); font-size: clamp(2rem, 5vw, 3rem); font-weight: 600; color: var(--accent); line-height: 1; }
.metric .label { font-size: 0.82rem; color: var(--muted); margin-top: 10px; }
.toolset { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.tool { font-family: var(--mono); font-size: 0.78rem; color: var(--ink); border: 1px solid var(--line-strong); padding: 6px 12px; border-radius: 999px; background: var(--paper-2); }

/* Videos */
.videos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 28px; }
.video { text-decoration: none; color: var(--ink); display: flex; flex-direction: column; }
.video img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 6px; background: var(--paper-2); display: block; }
.video-channel { font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent); margin-top: 12px; }
.video-title { font-size: 0.96rem; font-weight: 500; margin-top: 4px; line-height: 1.35; }
.video:hover .video-title { color: var(--accent); }

/* Testimonials */
.quotes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px 48px; margin-top: 28px; }
.quote { margin: 0; padding-top: 24px; border-top: 1px solid var(--line); }
.quote blockquote { margin: 0 0 16px; font-size: 1.02rem; }
.quote figcaption { display: flex; flex-direction: column; gap: 2px; }
.quote figcaption strong { font-size: 0.96rem; }
.quote figcaption span { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); }

/* Two column */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.post-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
.post-list li { padding: 14px 0; border-bottom: 1px solid var(--line); }
.post-list li:first-child { border-top: 1px solid var(--line); }

/* Blog */
.post-grid { display: grid; gap: 0; margin-top: 28px; }
.post { padding: 28px 0; border-bottom: 1px solid var(--line); }
.post:first-child { border-top: 1px solid var(--line); }
.post h2 { font-size: 1.4rem; }
.post h2 a { text-decoration: none; }
.prose { font-size: 1.1rem; line-height: 1.7; }
.prose p { margin: 0 0 1.1em; }
.prose ul { padding-left: 1.1em; }
.prose li { margin-bottom: 0.5em; }
.prose h2, .prose h3 { margin-top: 1.6em; }
.prose strong { font-weight: 650; }
.prose code { font-family: var(--mono); font-size: 0.9em; background: var(--paper-2); padding: 2px 6px; border-radius: 4px; }
.prose hr { border: none; border-top: 1px solid var(--line); margin: 2em 0; }
.canonical-note { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); border-left: 2px solid var(--line-strong); padding-left: 14px; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 44px 0; }
.site-footer p { margin: 4px 0; font-size: 0.92rem; }
.site-footer .brand-line { font-family: var(--mono); }

/* ---------------------------------------------------------------------------
   Terminal / "developer" components (global — the whole site is dark).
   --------------------------------------------------------------------------- */

/* Terminal window header block */
.term-window {
  border: 1px solid var(--line-strong); border-radius: 10px; overflow: hidden;
  max-width: 640px; background: var(--paper-2); font-family: var(--mono);
}
.term-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; background: #161a20; border-bottom: 1px solid var(--line);
  font-size: 0.78rem; color: var(--muted);
}
.term-bar span { width: 11px; height: 11px; border-radius: 50%; background: #3a424d; }
.term-bar span:nth-child(1) { background: #ff5f57; }
.term-bar span:nth-child(2) { background: #febc2e; }
.term-bar span:nth-child(3) { background: #28c840; }
.term-bar b { margin-left: 8px; font-weight: 500; }
.term-body { padding: 16px; font-size: 0.86rem; }
.term-line { margin: 0; color: var(--ink); }
.term-out { margin: 6px 0 0; color: var(--muted); }
.term-prompt { color: var(--accent); margin-right: 8px; }

.term-title { margin: 44px 0 28px; }

.term-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.term-quote {
  margin: 0; border: 1px solid var(--line); border-radius: 10px;
  background: var(--paper-2); padding: 0; overflow: hidden;
}
.term-head {
  font-family: var(--mono); font-size: 0.76rem; color: var(--muted);
  padding: 11px 16px; border-bottom: 1px solid var(--line); background: #0e1217;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.term-cmd { color: var(--ink); }
.term-quote blockquote { margin: 0; padding: 18px 16px 14px; font-size: 0.98rem; line-height: 1.6; }
.term-quote figcaption { display: flex; flex-direction: column; gap: 2px; padding: 0 16px 18px; }
.term-name { font-family: var(--mono); color: var(--accent); font-size: 0.86rem; }
.term-meta { font-family: var(--mono); font-size: 0.74rem; color: var(--muted); }
.term-meta.dim { color: #5c6675; }
.theme-term .site-footer { border-top-color: var(--line); }

@media (max-width: 760px) { .term-grid { grid-template-columns: 1fr; } }

/* Responsive */
@media (max-width: 860px) {
  .videos { grid-template-columns: repeat(2, 1fr); }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metric:nth-child(2) { border-right: none; }
  .metric:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .quotes, .two-col, .ministrip-wrap { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 560px) {
  .videos { grid-template-columns: 1fr; }
  .nav-toggle { display: block; }
  .nav ul { position: absolute; top: 66px; left: 0; right: 0; flex-direction: column; align-items: flex-start; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 24px; display: none; }
  .nav ul.open { display: flex; }
  .nav ul li { width: 100%; padding: 8px 0; }
}