/* ==========================================================================
   Eder Bauconsulting — Redesign · Clean
   ========================================================================== */

:root {
  /* Palette — clean & neutral */
  --bg:        #ffffff;
  --bg-alt:    #f5f5f4;
  --bg-deep:   #ededec;
  --paper:     #ffffff;
  --fg:        #111111;
  --fg-soft:   #4a4a48;
  --muted:     #767672;
  --muted-2:   #a3a39f;
  --line:      #e5e5e3;
  --line-soft: #efefee;
  --accent:    #0395FF;          /* Brand Blau */
  --accent-ink:#0274cc;
  --accent-bg: #e4f3ff;
  color-scheme: light;

  /* Typo — eine Familie, klare Hierarchie */
  --sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Rhythm */
  --container: 1280px;
  --gutter: 32px;
  --radius: 6px;
  --radius-lg: 10px;
}

/* Dark theme ============================================================*/
[data-theme="dark"] {
  --bg:        #0a0a0a;
  --bg-alt:    #141414;
  --bg-deep:   #1c1c1c;
  --paper:     #141414;
  --fg:        #f5f5f4;
  --fg-soft:   #c2c2bf;
  --muted:     #8a8a86;
  --muted-2:   #5e5e5b;
  --line:      #262624;
  --line-soft: #1d1d1b;
  --accent:    #1aa0ff;
  --accent-ink:#0395FF;
  --accent-bg: rgba(3, 149, 255, 0.16);
  color-scheme: dark;
}

/* Smooth color transition on theme switch (limited scope) */
body, .nav, .nav.is-scrolled, .btn, .btn-ghost, .btn-accent,
.chip, .chip.is-on, .process, .maps-consent, .footer,
.service-row, .team-photo {
  transition:
    background-color .35s ease,
    color .3s ease,
    border-color .3s ease,
    box-shadow .3s ease;
}

/* Logos shipped as black PNG → invert in dark mode */
[data-theme="dark"] .nav-brand img,
[data-theme="dark"] .footer-brand-col img,
[data-theme="dark"] .footer-logo {
  filter: invert(1) brightness(1.08);
}

/* .btn bg is var(--fg); in dark mode that becomes light, so flip text dark */
[data-theme="dark"] .btn { color: #0a0a0a; }
[data-theme="dark"] .btn:hover { background: #ffffff; border-color: #ffffff; color: #0a0a0a; }
[data-theme="dark"] .btn-ghost { color: var(--fg); background: transparent; }
[data-theme="dark"] .btn-ghost:hover { background: var(--bg-alt); color: var(--fg); border-color: var(--muted-2); }
[data-theme="dark"] .btn-accent { color: #ffffff; }
[data-theme="dark"] .chip.is-on { color: #0a0a0a; }

/* Scrolled nav - frosted glass needs a dark backdrop */
[data-theme="dark"] .nav.is-scrolled {
  background: rgba(14, 14, 14, 0.78);
}
[data-theme="dark"] .nav.is-open {
  background: var(--bg);
}

/* Dark-mode toggle button ===============================================*/
.dm-toggle {
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--fg-soft);
  transition: color .2s ease, background .2s ease, border-color .2s ease;
  padding: 0;
  margin: 0;
}
.dm-toggle:hover { color: var(--fg); background: var(--bg-alt); }
.dm-icons {
  position: relative;
  width: 18px;
  height: 18px;
  display: inline-block;
}
.dm-icon {
  position: absolute;
  inset: 0;
  transition: opacity .25s ease, transform .35s cubic-bezier(.2,.7,.2,1);
}
.dm-sun  { opacity: 0; transform: rotate(-90deg) scale(0.6); }
.dm-moon { opacity: 1; transform: rotate(0deg)   scale(1); }
[data-theme="dark"] .dm-sun  { opacity: 1; transform: rotate(0deg)   scale(1); }
[data-theme="dark"] .dm-moon { opacity: 0; transform: rotate(90deg)  scale(0.6); }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--fg);
  background: var(--bg);
  font-size: 15.5px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}

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

/* Nur für Vorlesehilfen sichtbar */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* Type ===========================================================*/
.eyebrow {
  display: none;
}

.lead {
  font-size: 19px;
  line-height: 1.5;
  color: var(--fg-soft);
  font-weight: 400;
  letter-spacing: -0.005em;
  text-wrap: pretty;
}

h1, h2, h3, h4 {
  font-family: var(--sans);
  font-weight: 500;
  letter-spacing: -0.022em;
  line-height: 1.02;
  color: var(--fg);
}

/* Apple-style emphasis: same size, lower opacity */
.dim { color: var(--muted-2); font-weight: 500; }
.dim-strong { color: var(--fg-soft); }

/* Reveal-on-scroll =======================================================*/
.reveal {
  opacity: 0;
  will-change: opacity, transform;
}
.reveal.up { transform: translateY(22px); }
.reveal.is-visible {
  opacity: 1;
  transform: none;
  transition:
    opacity .9s cubic-bezier(.16,.84,.3,1) var(--d, 0ms),
    transform .9s cubic-bezier(.16,.84,.3,1) var(--d, 0ms);
}
.reveal.d-0.is-visible { transition-delay: 0ms; }
.reveal.d-1.is-visible { transition-delay: 60ms; }
.reveal.d-2.is-visible { transition-delay: 120ms; }
.reveal.d-3.is-visible { transition-delay: 180ms; }
.reveal.d-4.is-visible { transition-delay: 240ms; }
.reveal.d-5.is-visible { transition-delay: 300ms; }
.reveal.d-6.is-visible { transition-delay: 380ms; }
.reveal.d-7.is-visible { transition-delay: 460ms; }
.reveal.d-8.is-visible { transition-delay: 560ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* Layout primitives =======================================================*/
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.container-wide {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.rule {
  height: 1px;
  background: var(--line);
  border: 0;
  margin: 0;
}

/* Buttons =================================================================*/
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  border-radius: var(--radius);
  font-family: var(--sans);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: -0.005em;
  border: 1px solid var(--fg);
  background: var(--fg);
  color: #fff;
  transition: background .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
}
.btn:hover { background: #000; border-color: #000; transform: translateY(-1px); }
.btn .arrow { display: inline-block; transition: transform .2s ease; font-size: 14px; }
.btn:hover .arrow { transform: translateX(3px); }

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--line);
}
.btn-ghost:hover { background: var(--bg-alt); border-color: var(--muted-2); color: var(--fg); }

.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-accent:hover { background: var(--accent-ink); border-color: var(--accent-ink); }

.btn-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans); font-size: 14px; font-weight: 500;
  color: var(--fg);
  padding: 0;
  cursor: pointer; background: none; border: 0;
  transition: color .2s ease, gap .2s ease;
}
.btn-link::after {
  content: "→";
  transition: transform .2s ease;
}
.btn-link:hover { color: var(--accent); gap: 12px; }
.btn-link:hover::after { transform: translateX(2px); }

/* Nav =====================================================================*/
.nav {
  position: sticky; top: 0; z-index: 50;
  background: transparent;
  backdrop-filter: none;
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease, backdrop-filter .25s ease;
}
.nav.is-scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(140%) blur(12px);
}
.nav-inner {
  max-width: 1440px; margin: 0 auto;
  padding: 14px var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}
.nav-brand {
  display: inline-flex; align-items: center;
  cursor: pointer; background: none; border: 0; padding: 0;
}
.nav-brand img {
  height: 36px;
  width: auto;
  display: block;
}
.nav-links {
  display: flex; gap: 4px; justify-content: center;
  list-style: none; padding: 0; margin: 0;
}
.nav-links li button {
  background: none; border: 0;
  padding: 8px 14px;
  font-family: var(--sans); font-size: 14px; font-weight: 500;
  color: var(--fg-soft);
  border-radius: var(--radius);
  transition: color .15s ease, background .15s ease;
}
.nav-links li button:hover { color: var(--fg); background: var(--bg-alt); }
.nav-cta {
  display: flex; align-items: center; gap: 16px;
}
.nav-phone {
  font-size: 14px;
  color: var(--fg-soft);
  font-weight: 500;
  transition: color .2s ease;
}
.nav-phone:hover { color: var(--accent); }

/* Section header pattern ==================================================*/
.sec-head {
  display: block;
  padding-bottom: 64px;
}
.sec-head .eyebrow { margin-bottom: 20px; }
.sec-head h2 {
  margin: 0;
  font-size: clamp(44px, 6.4vw, 80px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1;
  max-width: 18ch;
}
.sec-sub {
  margin: 22px 0 0;
  font-size: 17px;
  line-height: 1.5;
  color: var(--fg-soft);
  max-width: 56ch;
  text-wrap: pretty;
  font-weight: 400;
}
.sec-head .sec-lead {
  margin: 24px 0 0;
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--fg-soft);
  max-width: 56ch;
  text-wrap: pretty;
}

/* Section wrappers ========================================================*/
section { padding: 110px 0; }

/* Die Navigationsleiste klebt oben und ist rund 72px hoch. Ohne diesen
   Abstand landet ein angesprungener Abschnitt exakt am Seitenrand - und
   damit teilweise hinter der Leiste. Der Aufschlag gibt der Überschrift
   zusätzlich etwas Luft nach oben. */
section[id] { scroll-margin-top: 48px; }
section.tight { padding: 72px 0; }

@media (max-width: 860px) {
  :root { --gutter: 20px; }
  section { padding: 72px 0; }
  .sec-head { padding-bottom: 40px; }
  .nav-links { display: none; }
  .nav-inner { grid-template-columns: 1fr auto; }
  .nav-cta .nav-phone { display: none; }
}

/* Focus =================================================================*/
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Utility =================================================================*/
.muted { color: var(--muted); }
.center { text-align: center; }
.mono { font-family: var(--mono); font-feature-settings: "ss01"; }