/* =========================================================
   Felix Gabler – BIM Consulting und Baukostenanalyse
   main.css
   1. Tokens
   2. Reset und Basis
   3. Typografie
   4. Layout und Sektionen
   5. Komponenten
   6. Rechtsseiten
   7. Responsiv
   ========================================================= */

/* --- 1. Tokens ------------------------------------------ */

:root {
  /* Petrol-Skala */
  --petrol-900: #08262C;
  --petrol-800: #0B3037;
  --petrol-700: #14535E;
  --petrol-600: #1E6572;
  --petrol-500: #2A8C99;
  --petrol-200: #A9CBD1;
  --petrol-100: #DCEAEC;
  --petrol-050: #EFF5F6;

  /* Neutral */
  --paper:      #FCFCFB;
  --ink:        #16211F;
  --ink-muted:  #4E5C5F;
  --hairline:   #DDE5E6;

  /* Rollen */
  --bg:         var(--paper);
  --text:       var(--ink);
  --text-muted: var(--ink-muted);
  --accent:     var(--petrol-700);
  --accent-dim: var(--petrol-600);

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

  /* Raster */
  --measure:  36rem;
  --wrap:     68rem;
  --gap:      1.5rem;
  --section-y: clamp(4rem, 9vw, 7rem);
}

/* --- 2. Reset und Basis --------------------------------- */

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  font-feature-settings: "tnum" 1, "kern" 1;
  -webkit-font-smoothing: antialiased;
}

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

/* Hintergrund-Canvas: liegt hinter allem, nimmt keine Klicks an */
#graph-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Sprungmarke für Tastatur und Screenreader */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--petrol-800);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 2px solid var(--petrol-500);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- 3. Typografie -------------------------------------- */

h1, h2, h3 {
  margin: 0;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--petrol-900);
  text-wrap: balance;
}

h1 { font-size: clamp(2.25rem, 6vw, 3.4rem); letter-spacing: -0.025em; }
h2 { font-size: clamp(1.5rem, 3.2vw, 1.95rem); }
h3 { font-size: 1.1875rem; letter-spacing: -0.005em; }

p { margin: 0 0 1.1em; max-width: var(--measure); }
p:last-child { margin-bottom: 0; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color 0.15s ease;
}

a:hover { color: var(--petrol-500); }

/* Mono-Label: Normbezüge, Kontaktdaten, Kennungen.
   Bewusst gewählt, weil KG-Nummern und IFC-Klassen im Arbeitsalltag
   ohnehin in fester Laufweite stehen. */
.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.9rem;
}

.lead {
  font-size: clamp(1.125rem, 2.2vw, 1.3rem);
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 34rem;
}

/* --- 4. Layout und Sektionen ---------------------------- */

.wrap {
  width: min(100% - 2.5rem, var(--wrap));
  margin-inline: auto;
}

.site-header {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--hairline);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 2rem;
}

.wordmark {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--petrol-900);
  text-decoration: none;
  white-space: nowrap;
}

.wordmark span {
  font-weight: 400;
  color: var(--text-muted);
}

.site-nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.9375rem;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
}

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

.section {
  padding-block: var(--section-y);
  border-bottom: 1px solid var(--hairline);
}

.section:last-of-type { border-bottom: 0; }

.section-head { margin-bottom: 2.75rem; }

/* Hero bekommt mehr Luft: hier soll der Graph sichtbar bleiben */
.hero {
  padding-block: clamp(5rem, 14vw, 10rem);
  border-bottom: 1px solid var(--hairline);
}

.hero h1 { margin-bottom: 0.6rem; }

.hero .role {
  font-size: clamp(1.125rem, 2.6vw, 1.4rem);
  font-weight: 400;
  color: var(--accent);
  margin-bottom: 1.75rem;
}

/* --- 5. Komponenten ------------------------------------- */

.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.service {
  border-top: 2px solid var(--petrol-700);
  padding-top: 1.25rem;
}

.service .eyebrow { margin-bottom: 0.75rem; }
.service h3 { margin-bottom: 0.75rem; }

.service p {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: none;
}

.service ul {
  margin: 0.9rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

.service li {
  padding-left: 1rem;
  margin-bottom: 0.35rem;
  position: relative;
}

.service li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 1px;
  background: var(--petrol-500);
}

/* Profil: Text links, Eckdaten rechts */
.profile-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 3.5rem;
  align-items: start;
}

.facts {
  margin: 0;
  font-size: 0.9375rem;
}

.facts div + div {
  margin-top: 1.1rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--hairline);
}

.facts dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.facts dd {
  margin: 0;
  color: var(--text);
  line-height: 1.55;
}

/* Kontakt */
.contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 1.0625rem;
}

.contact-list li { margin-bottom: 0.7rem; }

.contact-list a {
  text-decoration: none;
  border-bottom: 1px solid var(--petrol-200);
  padding-bottom: 1px;
}

.contact-list a:hover { border-bottom-color: var(--petrol-500); }

.site-footer {
  padding: 2.25rem 0 3rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.75rem;
  justify-content: space-between;
}

.site-footer nav {
  display: flex;
  gap: 1.5rem;
}

.site-footer a { color: var(--text-muted); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }

/* --- 6. Rechtsseiten ------------------------------------ */

.legal {
  padding-block: clamp(3rem, 7vw, 5rem);
}

.legal .inner { max-width: 42rem; }

.legal h1 { margin-bottom: 2.5rem; }

.legal h2 {
  font-size: 1.25rem;
  margin: 2.75rem 0 0.85rem;
}

.legal h3 {
  font-size: 1.0625rem;
  margin: 1.75rem 0 0.6rem;
}

.legal p, .legal li { max-width: none; }

.legal ul { padding-left: 1.15rem; margin: 0 0 1.1em; }
.legal li { margin-bottom: 0.35rem; }

.legal address {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.8;
  padding: 1.1rem 1.25rem;
  background: var(--petrol-050);
  border-left: 2px solid var(--petrol-700);
  margin: 0 0 1.1em;
}

.back-link {
  display: inline-block;
  margin-top: 3rem;
  font-size: 0.9375rem;
}

/* Platzhalter, die vor dem Livegang ersetzt werden müssen */
.todo {
  background: #FFF3CD;
  color: #6B4E00;
  padding: 0.05em 0.35em;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.875em;
}

/* --- 7. Responsiv --------------------------------------- */

@media (max-width: 60rem) {
  .services { grid-template-columns: 1fr; gap: 2.25rem; }
  .profile-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 34rem) {
  body { font-size: 1rem; }
  .site-header .wrap { flex-direction: column; align-items: flex-start; }
  .site-nav { gap: 1.15rem; }
}

@media print {
  #graph-bg { display: none; }
  body { color: #000; background: #fff; }
}