/* johninthe.cloud — Signal tokens (dark default + Daylight light theme),
   the Signal core components this page uses, and the page layout.
   Theme switching is a data-theme attribute swap on <html>. */

/* ---------- Tokens ---------- */
:root {
  --bg: #0a0b0d; --panel: #101216; --panel-2: #15171c; --panel-3: #1b1e24; --hover: #1d2027;
  --line: #23262d; --line-strong: #2c313a;
  --ink: #e7e9ec; --ink-2: #9aa0aa; --ink-3: #646a74;
  --accent: #3b82f6; --accent-ink: #ffffff;
  --accent-bg: rgba(59,130,246,0.14); --accent-line: rgba(59,130,246,0.32);
  --good: #34d399; --good-bg: rgba(52,211,153,0.12); --good-line: rgba(52,211,153,0.26);
  --scrim: rgba(0,0,0,0.45);

  --font: "Helvetica Neue", Helvetica, "Segoe UI", Arial, system-ui, sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, monospace;
  --r: 12px; --r-sm: 8px; --r-xs: 6px;

  --px: 56px;          /* section side padding */
  --section-gap: 72px;
  --header-h: 63px;    /* sticky offset for anchor scrolling */
  color-scheme: dark;
}

:root[data-theme="daylight"] {
  --bg: #f3eee4; --panel: #fffefb; --panel-2: #f7f2ea; --panel-3: #efe8db; --hover: #ece3d3;
  --line: #e4dac9; --line-strong: #cdbfa7;
  --ink: #2b2620; --ink-2: #6a5f51; --ink-3: #9c8f7c;
  --accent: #c2703a; --accent-ink: #ffffff;
  --accent-bg: rgba(194,112,58,0.13); --accent-line: rgba(194,112,58,0.30);
  --good: #2f8f5b; --good-bg: rgba(47,143,91,0.12); --good-line: rgba(47,143,91,0.28);
  color-scheme: light;
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
[hidden] { display: none !important; } /* also covers inline <svg>, which ignores hidden */
html { background: var(--bg); scroll-padding-top: var(--header-h); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font); font-size: 14px; line-height: 1.45;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  transition: background-color .2s ease, color .2s ease;
}
body.is-locked { overflow: hidden; }
h1, h2, h3, p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
button { font-family: inherit; cursor: pointer; }
::selection { background: var(--accent-bg); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
svg { flex: none; }
.num { font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.mono { font-family: var(--mono); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 50; padding: 8px 12px; background: var(--accent); color: var(--accent-ink); border-radius: var(--r-sm); font-weight: 600; }
.skip:focus { top: 12px; color: var(--accent-ink); }

/* ---------- Signal components ---------- */
.sig-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-family: var(--font); font-size: 12.5px; font-weight: 650; line-height: 1.2;
  border-radius: var(--r-sm); border: 1px solid transparent;
  padding: 8px 13px; cursor: pointer; white-space: nowrap;
  transition: filter .12s, background .12s, color .12s, border-color .12s;
}
.sig-btn--primary, .sig-btn--primary:hover { background: var(--accent); color: var(--accent-ink); }
.sig-btn--primary:hover { filter: brightness(1.08); }
.sig-btn--ghost { background: transparent; color: var(--ink-2); border-color: var(--line-strong); }
.sig-btn--ghost:hover { background: var(--hover); color: var(--ink); }
.sig-btn--sm { padding: 6px 11px; font-size: 12px; }
.sig-btn--lg { padding: 11px 18px; font-size: 14px; }
.sig-btn--block { width: 100%; }

.sig-pill {
  display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; align-self: flex-start;
  font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 20px; border: 1px solid;
}
.sig-pill--good { color: var(--good); background: var(--good-bg); border-color: var(--good-line); }

.sig-seg { display: inline-flex; background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 3px; gap: 2px; }
.sig-seg button {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 6px 12px;
  background: none; border: none; color: var(--ink-3); font-size: 12px; font-weight: 680;
  border-radius: var(--r-xs); transition: color .12s, background .12s;
}
.sig-seg button:hover:not([aria-pressed="true"]) { color: var(--ink-2); }
.sig-seg button[aria-pressed="true"] { background: var(--panel-3); color: var(--ink); }

.sig-kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 13px 14px; display: flex; flex-direction: column; gap: 7px; }
.sig-kpi-label { font-size: 11px; color: var(--ink-3); font-weight: 500; }
.sig-kpi-val { font-size: 26px; font-weight: 680; letter-spacing: -0.02em; }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); }
.eyebrow { font-size: 11px; font-weight: 650; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-2); }
.dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--good); }

/* ---------- Page ---------- */
.wrap { max-width: 1280px; margin: 0 auto; }
.section { padding: 0 var(--px) var(--section-gap); }
.section > .eyebrow { display: block; margin-bottom: 16px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 20; background: var(--bg); border-bottom: 1px solid var(--line); transition: background-color .2s ease; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px var(--px); }
.brand { display: flex; align-items: center; gap: 12px; font-size: 14px; font-weight: 600; }
.brand:hover { color: var(--ink); }
.mono-tile { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; background: var(--panel-3); border: 1px solid var(--line-strong); font-size: 12px; font-weight: 680; }
.nav { display: flex; align-items: center; gap: 28px; font-size: 13px; color: var(--ink-2); }
.nav ul { display: flex; gap: 28px; }
.menu-btn { display: none; }

/* Mobile menu sheet */
.sheet { position: fixed; inset: var(--header-h) 0 0 0; z-index: 15; }
.scrim { position: absolute; inset: 0; background: var(--scrim); }
.sheet-panel {
  position: relative; background: var(--panel); border-bottom: 1px solid var(--line);
  padding: 8px 20px 24px; display: flex; flex-direction: column; gap: 20px;
  max-height: 100%; overflow-y: auto;
}
.sheet-nav a { display: flex; align-items: center; justify-content: space-between; min-height: 52px; border-bottom: 1px solid var(--line); font-size: 16px; font-weight: 600; color: var(--ink); }
.sheet-nav a svg { color: var(--ink-2); }
.theme-row { display: flex; align-items: center; justify-content: space-between; }
.theme-row > span { font-size: 13px; color: var(--ink-2); }
.theme-row .sig-seg button { min-width: 44px; min-height: 44px; }

/* Hero */
.hero { padding: 88px var(--px) 56px; display: flex; flex-direction: column; gap: 28px; }
.hero h1 { font-size: 60px; line-height: 1.04; font-weight: 700; letter-spacing: -0.025em; max-width: 960px; text-wrap: balance; }
.hero .intro { font-size: 18px; line-height: 1.55; color: var(--ink-2); max-width: 720px; }
.ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.only-mobile { display: none; }

/* KPIs */
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

/* Experience */
.job { display: grid; grid-template-columns: 200px 1fr; gap: 32px; padding: 24px 28px; border-bottom: 1px solid var(--line); }
.job:last-child { border-bottom: 0; }
.job-co { display: flex; flex-direction: column; gap: 4px; }
.job-co h3 { font-size: 17px; font-weight: 680; display: flex; align-items: center; gap: 8px; }
.job-loc { font-size: 12px; color: var(--ink-2); }
.job-body { display: flex; flex-direction: column; gap: 12px; }
.roles { display: flex; flex-direction: column; gap: 6px; }
.role { display: flex; justify-content: space-between; gap: 16px; }
.role-title { font-weight: 600; }
.role-dates { font-family: var(--mono); font-size: 12px; color: var(--ink-2); white-space: nowrap; }
.job-summary { color: var(--ink-2); max-width: 760px; }

/* Projects */
.projects { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.project { padding: 24px 26px; display: flex; flex-direction: column; gap: 14px; }
.project-top { display: flex; align-items: center; justify-content: space-between; gap: 8px 12px; flex-wrap: wrap; }
.chip-metric { padding: 3px 9px; border-radius: 6px; background: var(--accent-bg); border: 1px solid var(--accent-line); color: var(--ink); font-family: var(--mono); font-size: 12px; white-space: nowrap; }
.project h3 { font-size: 20px; font-weight: 680; letter-spacing: -0.01em; line-height: 1.25; }
.project p { color: var(--ink-2); }

/* Skills + education */
.split { display: grid; grid-template-columns: 2fr 1fr; gap: 14px; }
.split > div > .eyebrow { display: block; margin-bottom: 16px; }
.skills { padding: 24px 26px; display: grid; grid-template-columns: 1fr 1fr; gap: 22px 28px; }
.skill-group h3 { font-size: 13px; font-weight: 600; margin-bottom: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips li { padding: 4px 9px; border-radius: 6px; background: var(--panel-2); border: 1px solid var(--line-strong); font-size: 12px; color: var(--ink); }
.edu { padding: 8px 26px; }
.edu li { padding: 18px 0; border-bottom: 1px solid var(--line); }
.edu li:last-child { border-bottom: 0; }
.edu-school { font-weight: 600; }
.edu-degree { font-size: 13px; color: var(--ink-2); margin-top: 2px; }

/* Contact */
.contact { padding: 40px 44px; display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 40px; }
.contact-copy { max-width: 560px; display: flex; flex-direction: column; gap: 16px; }
.contact h2 { font-size: 32px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }
.contact-links { display: flex; flex-direction: column; gap: 10px; font-family: var(--mono); font-size: 14px; }
.contact-links .muted { color: var(--ink-2); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); }
.site-footer .wrap { display: flex; justify-content: space-between; align-items: center; padding: 20px var(--px) 28px; font-size: 12px; color: var(--ink-2); }

/* 404 */
.notfound { min-height: 60vh; padding: 88px var(--px); display: flex; flex-direction: column; gap: 20px; align-items: flex-start; }
.notfound h1 { font-size: 40px; line-height: 1.1; letter-spacing: -0.02em; }
.notfound p { color: var(--ink-2); }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) { :root { --px: 32px; } }
@media (max-width: 960px) { .projects { grid-template-columns: 1fr; } }

@media (max-width: 767.98px) {
  :root { --px: 20px; --section-gap: 48px; --header-h: 65px; }
  .site-header .wrap { padding: 10px 20px; min-height: 44px; }
  .brand { gap: 10px; }
  .mono-tile { width: 28px; height: 28px; font-size: 11px; }
  .nav { display: none; }
  .menu-btn { display: inline-flex; }

  .hero { padding: 40px 20px 32px; gap: 20px; }
  .hero h1 { font-size: 36px; line-height: 1.08; }
  .hero .intro { font-size: 16px; }
  .ctas { flex-direction: column; gap: 10px; }
  .ctas .sig-btn { width: 100%; }
  .only-desktop { display: none; }
  .only-mobile { display: inline-flex; }

  .kpis { grid-template-columns: 1fr 1fr; gap: 10px; }

  .job { grid-template-columns: 1fr; gap: 12px; padding: 18px; }
  .job-co { flex-direction: row; justify-content: space-between; align-items: baseline; gap: 12px; }
  .job-loc { text-align: right; }
  .roles { gap: 8px; }
  .role { flex-direction: column; gap: 2px; }

  .project { padding: 20px; gap: 12px; }
  .project h3 { font-size: 18px; }

  .split { grid-template-columns: 1fr; gap: var(--section-gap); }
  .skills { padding: 20px; grid-template-columns: 1fr; gap: 20px; }
  .edu { padding: 4px 20px; }
  .edu li { padding: 16px 0; }

  .contact { padding: 24px 20px; flex-direction: column; align-items: stretch; gap: 20px; }
  .contact h2 { font-size: 24px; line-height: 1.2; }
  .contact-links { gap: 0; }
  .contact-links > * { display: flex; align-items: center; min-height: 44px; border-top: 1px solid var(--line); overflow-wrap: anywhere; }

  .site-footer .wrap { padding: 20px 20px 32px; }
  .site-footer a { display: inline-flex; align-items: center; min-height: 44px; }
}