/* ruefmark.com – Aufbau in Anlehnung an itarchitect.ch (Twenty Fifteen), Farben gedämpft: warmes Grau, Senf als Akzent */

@font-face { font-family: "Noto Sans"; src: url("fonts/noto-sans.woff2") format("woff2"); font-weight: 400 700; font-display: swap; }
@font-face { font-family: "Noto Serif"; src: url("fonts/noto-serif.woff2") format("woff2"); font-weight: 400 700; font-display: swap; }
@font-face { font-family: "Noto Serif"; src: url("fonts/noto-serif-italic.woff2") format("woff2"); font-weight: 400 700; font-style: italic; font-display: swap; }

:root {
  --bg: #ebe7df;
  --side: #e2ddd2;
  --card: #f8f6f1;
  --ink: #26241f;
  --muted: #6b665c;
  --line: rgba(38, 36, 31, 0.12);
  --accent: #26241f;
  --accent-ink: #f8f6f1;
  --chip: #ece4cf;
  --hl: #c4a24a;
  --mark: rgba(196, 162, 74, 0.32);
  --shadow: 0 1px 2px rgba(38, 36, 31, 0.05), 0 6px 18px rgba(38, 36, 31, 0.05);
  --radius: 14px;
  --sans: "Noto Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Noto Serif", Georgia, serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151412;
    --side: #1b1a17;
    --card: #211f1c;
    --ink: #e6e2d9;
    --muted: #a39e92;
    --line: rgba(255, 255, 255, 0.09);
    --accent: #c9ab5c;
    --accent-ink: #1b1a17;
    --chip: #2c2920;
    --hl: #b8994d;
    --mark: rgba(201, 171, 92, 0.28);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #151412; --side: #1b1a17; --card: #211f1c; --ink: #e6e2d9; --muted: #a39e92;
  --line: rgba(255, 255, 255, 0.09); --accent: #c9ab5c; --accent-ink: #1b1a17; --chip: #2c2920;
  --hl: #b8994d; --mark: rgba(201, 171, 92, 0.28);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4); color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 1.5rem; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.7 var(--serif);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4 { font-family: var(--sans); line-height: 1.2; margin: 0 0 0.6em; letter-spacing: -0.01em; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- Layout ---------- */
.layout { display: grid; grid-template-columns: 320px minmax(0, 1fr); min-height: 100vh; }

.sidebar {
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  background: var(--side);
  padding: 2.5rem 2rem;
  display: flex; flex-direction: column; gap: 2rem;
  border-right: 1px solid var(--line);
  font-family: var(--sans);
}
.logo { display: inline-flex; flex-direction: column; gap: 0.15rem; text-decoration: none; width: max-content; }
.logo-brand { font: 500 0.95rem/1 var(--sans); letter-spacing: 0.02em; color: var(--muted); }
.logo-brand .br { color: var(--hl); font-weight: 700; }
.logo-name { font: 700 1.6rem/1.1 var(--sans); letter-spacing: -0.01em; color: var(--ink); }
.tagline { font-size: 0.95rem; color: var(--muted); margin: 0; }

.nav ul { list-style: none; margin: 0; padding: 0; }
.nav a {
  display: block; padding: 0.45rem 0; text-decoration: none; font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.nav a:hover { padding-left: 0.35rem; transition: padding 0.15s; }
.side-foot { margin-top: auto; font-size: 0.85rem; color: var(--muted); }
.side-foot a { display: inline-block; margin-right: 0.9rem; font-weight: 600; color: var(--ink); }

.menu-toggle { display: none; }

main { padding: 3rem clamp(1rem, 4vw, 4rem) 4rem; max-width: 1040px; width: 100%; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1.5rem, 3vw, 2.75rem);
  margin-bottom: 2rem;
}
.eyebrow {
  font: 700 0.75rem/1 var(--sans); text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--muted); margin-bottom: 0.9rem;
}

/* ---------- Hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 180px; gap: 2.5rem; align-items: center; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); margin-bottom: 0.3em; }
.claim { font: 600 clamp(1.1rem, 2.2vw, 1.35rem)/1.4 var(--sans); margin-bottom: 1.2rem; }
.claim mark { background: linear-gradient(transparent 55%, var(--mark) 55%); color: inherit; padding: 0 0.1em; }
.portrait {
  width: 180px; height: 180px; border-radius: 50%; object-fit: cover;
  background: var(--chip); display: grid; place-items: center;
  font: 700 3rem var(--sans); color: var(--muted); border: 4px solid var(--hl);
}
.motto { font-style: italic; color: var(--muted); margin: 0; }

/* ---------- Kompetenzen ---------- */
.tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.tile { border: 1px solid var(--line); border-radius: 12px; padding: 1.4rem; }
.tile h3 { display: flex; align-items: center; gap: 0.6rem; }
.tile h3::before { content: ""; width: 10px; height: 10px; border-radius: 3px; background: var(--hl); box-shadow: 0 0 0 2px var(--ink); }
.tile p { font-size: 0.97rem; }
.chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0; padding: 0; list-style: none; }
.chips li { font: 500 0.78rem/1 var(--sans); background: var(--chip); padding: 0.4rem 0.6rem; border-radius: 999px; }

/* ---------- Projekte ---------- */
.projects { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.25rem; }
.project {
  display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 12px;
  padding: 1.4rem; text-decoration: none; transition: transform 0.15s, box-shadow 0.15s;
}
a.project:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.project .tag { font: 700 0.72rem/1 var(--sans); text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.project .metric { font: 700 1.5rem/1.15 var(--sans); margin: 0.7rem 0 0.5rem; }
.project p { font-size: 0.95rem; color: var(--muted); margin: 0; }
.project .more { margin-top: auto; padding-top: 1rem; font: 600 0.88rem var(--sans); }
.project .more::after { content: " →"; }
.project.soon .more { color: var(--muted); }
.project.soon .more::after { content: ""; }

/* ---------- Werdegang ---------- */
.timeline { list-style: none; margin: 0; padding: 0; border-left: 3px solid var(--hl); }
.timeline li { position: relative; padding: 0 0 1.4rem 1.5rem; }
.timeline li::before {
  content: ""; position: absolute; left: -8px; top: 0.45rem; width: 13px; height: 13px;
  border-radius: 50%; background: var(--card); border: 3px solid var(--ink);
}
.timeline .when { font: 700 0.85rem var(--sans); color: var(--muted); }
.timeline .what { font: 700 1.02rem/1.35 var(--sans); }
.timeline .where { font-size: 0.95rem; color: var(--muted); }

/* ---------- Listen ---------- */
.cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; }
.plain { list-style: none; padding: 0; margin: 0; }
.plain li { padding: 0.55rem 0; border-bottom: 1px solid var(--line); font-size: 0.97rem; }
.plain li:last-child { border-bottom: 0; }
.plain .meta { display: block; font: 500 0.8rem var(--sans); color: var(--muted); }
.meta-note { font-size: 0.9rem; color: var(--muted); margin: 0.75rem 0 0; }

/* ---------- Kontakt ---------- */
.contact-links { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 1.2rem 0; }
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem; font: 700 0.95rem var(--sans);
  padding: 0.75rem 1.2rem; border-radius: 999px; text-decoration: none;
  background: var(--accent); color: var(--accent-ink);
}
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); }
.btn:hover { filter: brightness(1.1); }

/* ---------- Fallbeispiel-Seiten ---------- */
.back { font: 600 0.9rem var(--sans); text-decoration: none; display: inline-block; margin-bottom: 1.25rem; }
.back::before { content: "← "; }
.case h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
.lead { font-size: 1.15rem; color: var(--muted); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin: 1.75rem 0; }
.fact { background: var(--chip); border-radius: 12px; padding: 1rem 1.2rem; }
.fact b { display: block; font: 700 1.6rem/1.1 var(--sans); }
.fact span { font: 500 0.82rem var(--sans); color: var(--muted); }
.case h2 { font-size: 1.3rem; margin-top: 2rem; }
.case ul { padding-left: 1.2rem; }
.case li { margin-bottom: 0.4rem; }
.case code { font-size: 0.88em; background: var(--chip); padding: 0.1em 0.35em; border-radius: 4px; }

/* ---------- Footer ---------- */
.footer { font: 400 0.82rem/1.6 var(--sans); color: var(--ink); opacity: 0.85; padding: 0 0.5rem; }
.footer a { font-weight: 600; }
.footer p { margin: 0 0 0.4rem; }

/* ---------- Mobil ---------- */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    position: sticky; top: 0; z-index: 10; height: auto; padding: 0.75rem 1rem;
    flex-direction: row; flex-wrap: wrap; align-items: center; gap: 0.75rem;
  }
  .logo-brand { font-size: 0.78rem; }
  .logo-name { font-size: 1.25rem; }
  .tagline, .side-foot { display: none; }
  .menu-toggle {
    display: inline-flex; margin-left: auto; font: 700 0.9rem var(--sans); background: var(--ink);
    color: var(--side); border: 0; border-radius: 999px; padding: 0.55rem 1rem; cursor: pointer;
  }
  .nav { display: none; width: 100%; }
  .nav.open { display: block; }
  main { padding: 1.5rem 1rem 3rem; }
  .hero { grid-template-columns: 1fr; }
  .hero .portrait { order: -1; width: 120px; height: 120px; font-size: 2rem; }
  .tiles, .cols { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}