/* kianmoldenhauer.com */

:root {
  --bg: #fcfbf8;
  --band: #f2f1ec;
  --text: #1c1d1f;
  --muted: #62656b;
  --faint: #989ba1;
  --line: #e4e1da;
  --link: #1f6a4f;
  --link-hover: #0f4a35;
  --accent-soft: rgba(31, 106, 79, .08);
  --menu-bg: #ffffff;
  --sans: 'IBM Plex Sans', -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #131416; --band: #1a1b1e; --text: #e4e3df; --muted: #a2a3a6; --faint: #6c6e72; --line: #2a2b2e;
    --link: #8fd3b4; --link-hover: #b9e6d1; --accent-soft: rgba(143, 211, 180, .08); --menu-bg: #1b1c1f; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #131416; --band: #1a1b1e; --text: #e4e3df; --muted: #a2a3a6; --faint: #6c6e72; --line: #2a2b2e;
  --link: #8fd3b4; --link-hover: #b9e6d1; --accent-soft: rgba(143, 211, 180, .08); --menu-bg: #1b1c1f; color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 17px/1.7 var(--sans); -webkit-font-smoothing: antialiased; }
a { color: var(--link); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--link-hover); text-decoration-thickness: 2px; }
p { margin: 0 0 14px; }
strong { font-weight: 600; }
.muted { color: var(--muted); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--text); color: var(--bg); padding: 6px 10px; z-index: 100; }
.skip:focus { left: 12px; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }

/* ---------------------------------------------------------------- header */
.nav { position: sticky; top: 0; z-index: 50; background: var(--bg); border-bottom: 1px solid transparent; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner { max-width: 1160px; margin: 0 auto; padding: 0 40px; height: 60px; display: flex; align-items: center; gap: 12px; }
.brand { color: var(--text); text-decoration: none; font-weight: 600; font-size: 16px; }
.brand:hover { color: var(--text); }
.menu { margin-left: auto; display: flex; align-items: center; gap: 24px; }
.menu > a, .dropdown-toggle {
  font: 400 15px var(--sans); color: var(--muted); text-decoration: none; background: none; border: 0; padding: 4px 0;
  cursor: pointer; display: inline-flex; align-items: center; gap: 4px;
}
.menu > a:hover, .dropdown-toggle:hover, .dropdown-toggle[aria-expanded="true"] { color: var(--text); }
.chev { width: 11px; height: 11px; fill: none; stroke: currentColor; stroke-width: 1.5; transition: transform .15s; }
.dropdown-toggle[aria-expanded="true"] .chev { transform: rotate(180deg); }
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute; top: calc(100% + 10px); right: -12px; width: 250px; padding: 4px 0;
  background: var(--menu-bg); border: 1px solid var(--line); box-shadow: 0 6px 20px rgba(0, 0, 0, .07); display: none;
}
.dropdown.open .dropdown-menu { display: block; }
.dropdown-menu a { display: block; padding: 9px 14px; text-decoration: none; color: var(--text); font-size: 15px; line-height: 1.4; }
.dropdown-menu a:hover, .dropdown-menu a:focus-visible { background: var(--band); color: var(--link); }
.dropdown-menu span { display: block; color: var(--faint); font-size: 13px; }
.theme-toggle, .menu-toggle { width: 32px; height: 32px; display: grid; place-items: center; background: none; border: 0; color: var(--muted); cursor: pointer; padding: 0; }
.theme-toggle:hover, .menu-toggle:hover { color: var(--text); }
.theme-toggle svg, .menu-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; }
.i-moon { display: none; }
:root[data-theme="dark"] .i-sun { display: none; }
:root[data-theme="dark"] .i-moon { display: block; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .i-sun { display: none; } :root:not([data-theme="light"]) .i-moon { display: block; } }
.menu-toggle { display: none; margin-left: auto; }

/* ---------------------------------------------------------------- two-column layout */
.layout { max-width: 1160px; margin: 0 auto; padding: 0 40px; display: grid; grid-template-columns: 310px minmax(0, 1fr); gap: 80px; }
.side-inner { position: sticky; top: 92px; padding: 56px 0 40px; }
h1 { margin: 0; font-size: 36px; line-height: 1.15; font-weight: 600; letter-spacing: -.015em; }
.where { margin: 8px 0 18px; font-family: var(--mono); font-size: 14px; color: var(--faint); }
.tagline { color: var(--muted); font-size: 16px; line-height: 1.6; }
.side-links { list-style: none; margin: 22px 0 0; padding: 18px 0 0; border-top: 1px solid var(--line); display: grid; gap: 8px; font-size: 15px; }
.side-links a { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); overflow-wrap: anywhere; }
.side-links a:hover { color: var(--link); }
.side-links svg { width: 16px; height: 16px; flex: none; fill: currentColor; color: var(--muted); }
.side-links svg.stroke { fill: none; stroke: currentColor; stroke-width: 1.6; }
.side-links a:hover svg { color: var(--link); }

/* the quaternion table */
.quat-table { margin: 36px 0 0; }
.quat-table table { border-collapse: collapse; font-family: var(--mono); font-size: 15px; }
.quat-table th, .quat-table td { width: 42px; height: 36px; text-align: center; padding: 0; }
.quat-table thead th { color: var(--faint); font-weight: 400; border-bottom: 1px solid var(--text); }
.quat-table tbody th { color: var(--faint); font-weight: 400; border-right: 1px solid var(--text); }
.quat-table thead th:first-child { border-right: 1px solid var(--text); color: var(--text); }
.quat-table td { color: var(--text); }
.quat-table td.neg { color: var(--muted); }
.quat-table td.diag { color: var(--link); font-weight: 500; background: var(--accent-soft); }
.quat-table figcaption { margin-top: 12px; font-size: 13.5px; line-height: 1.55; color: var(--faint); max-width: 230px; }

/* ---------------------------------------------------------------- content */
.content { padding: 56px 0 0; min-width: 0; }
.content section { padding: 36px 0; border-top: 1px solid var(--line); }
.content section.intro { border-top: 0; padding-top: 6px; }
.lead { font-size: 21px; line-height: 1.6; color: var(--text); }
.intro p:not(.lead) { color: var(--muted); max-width: 640px; }
h2 { margin: 0 0 18px; font: 500 13.5px var(--mono); color: var(--faint); letter-spacing: .02em; text-transform: lowercase; }
h2::before { content: '§ '; color: var(--link); }
h3 { margin: 0 0 6px; font-size: 19px; font-weight: 600; letter-spacing: -.005em; }
.date, .meta, .num { font-family: var(--mono); color: var(--faint); }

/* Now: a tinted band with three columns */
.content section.band { background: var(--band); border-top: 0; padding: 26px 28px 22px; margin: 8px 0 0; }
.band + section { border-top: 0; }
.now-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.now-item .date { display: block; font-size: 13px; margin-bottom: 6px; }
.now-item p { margin: 0; font-size: 15.5px; line-height: 1.55; }

/* Projects: one featured, two side by side */
.project { display: grid; grid-template-columns: 44px 1fr; gap: 14px; }
.project p { color: var(--muted); font-size: 16px; }
.project .meta { font-size: 13px; margin-bottom: 4px; color: var(--faint); }
.num { font-size: 13px; padding-top: 4px; color: var(--link); }
.project.featured { padding-bottom: 26px; margin-bottom: 26px; border-bottom: 1px dashed var(--line); }
.project.featured h3 { font-size: 24px; }
.project.featured p:not(.meta) { font-size: 17.5px; max-width: 620px; }
.project.featured strong { color: var(--text); }
.project-row { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.more { font-size: 15px; font-weight: 500; }

/* Two-up sections */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.plain { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.plain li { color: var(--muted); }
.plain strong { color: var(--text); }
.tags { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
.tags li { padding-left: 22px; position: relative; }
.tags li::before { content: '→'; position: absolute; left: 0; font-family: var(--mono); font-size: 14px; color: var(--link); }
.timeline { margin: 0; display: grid; grid-template-columns: 88px 1fr; gap: 10px 16px; }
.timeline dt { font-family: var(--mono); font-size: 13.5px; color: var(--faint); padding-top: 3px; }
.timeline dd { margin: 0; color: var(--text); line-height: 1.5; }
.levels { margin: 0; display: grid; gap: 0; }
.levels div { display: flex; justify-content: space-between; align-items: baseline; padding: 8px 0; border-bottom: 1px dotted var(--line); }
.levels div:last-child { border-bottom: 0; }
.levels dt { font-weight: 500; }
.levels dd { margin: 0; font-family: var(--mono); font-size: 14px; color: var(--muted); }

/* Contact */
.contact-line { font-size: 22px; line-height: 1.45; margin-bottom: 10px; }
.contact-line a { overflow-wrap: anywhere; }

.footer { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 24px 0 48px; border-top: 1px solid var(--line); color: var(--faint); font-size: 14px; }
.quat { font-family: var(--mono); font-size: 13px; }

/* ---------------------------------------------------------------- tablet */
@media (max-width: 1020px) {
  .layout { grid-template-columns: 250px minmax(0, 1fr); gap: 48px; padding: 0 28px; }
  .nav-inner { padding: 0 28px; }
  .now-grid { grid-template-columns: 1fr; gap: 14px; }
  .project-row, .split { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------------------------------------------------------------- phone: one column */
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav-inner { padding: 0 18px; }
  .menu-toggle { display: grid; }
  .menu {
    position: absolute; top: 60px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--line); padding: 4px 18px 12px;
  }
  .menu.open { display: flex; }
  .menu > a, .dropdown-toggle { padding: 11px 0; font-size: 16px; width: 100%; justify-content: space-between; border-bottom: 1px solid var(--line); }
  .dropdown-menu { position: static; width: auto; border: 0; box-shadow: none; background: transparent; padding: 0 0 6px 14px; }
  .dropdown-menu a { padding: 8px 0; }
  .theme-toggle { width: auto; justify-content: start; margin-top: 8px; }

  .layout { grid-template-columns: 1fr; gap: 0; padding: 0 18px; }
  .side-inner { position: static; padding: 36px 0 8px; }
  h1 { font-size: 30px; }
  .quat-table { display: none; }
  .content { padding-top: 20px; }
  .lead { font-size: 18px; }
  .content section.band { padding: 20px 18px; margin: 0 -18px; }
  .project.featured h3 { font-size: 21px; }
  .project.featured p:not(.meta) { font-size: 16px; }
  .contact-line { font-size: 19px; }
  .footer { flex-direction: column; }
}

/* ---------------------------------------------------------------- 404 */
.page-404 { max-width: 640px; margin: 0 auto; padding: 18vh 24px 48px; }
.page-404 h1 { margin-bottom: 12px; }