/* =========================================================
   Weyerhäuser Volt & Logik · Brand CSS
   Primär: Anthrazit  ·  Akzent: Kupfer-Orange
   Typografie: Inter (geometrische Sans-Serif)
   ========================================================= */

/* --- Fonts (lokal, DSGVO-konform) ------------------------- */

/* Inter — variable font, deckt 400/500/600/700 ab */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('../fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* IBM Plex Mono — 400 + 500 */
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/ibm-plex-mono-400-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/ibm-plex-mono-400-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/ibm-plex-mono-500-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/ibm-plex-mono-500-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --ink: #14202C;
  --ink-soft: #2A3645;
  --copper: #E97A38;
  --copper-soft: #F4D1B4;
  --mute: #6B7280;
  --line: #E5E7EB;
  --line-soft: #F0F1F3;
  --bg: #FAFAF8;
  --white: #FFFFFF;

  --maxw: 1180px;
  --gap: clamp(1.5rem, 2.5vw, 2rem);
  --radius: 6px;

  --header-pad: clamp(1.75rem, 3vw, 2.5rem);

  --f-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--f-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--copper); }

h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); line-height: 1.05; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.15; }
h3 { font-size: 1.2rem; line-height: 1.3; }

p  { margin: 0 0 1em; }

.amp {
  font-family: var(--f-sans);
  font-style: italic;
  font-weight: 600;
  color: var(--copper);
  padding: 0 0.05em;
}

.mono { font-family: var(--f-mono); font-size: 0.85em; letter-spacing: 0.02em; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gap);
}

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(140%) blur(6px);
}
.site-header .container { padding-inline: var(--header-pad); }
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 0;
}
.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
}
.site-header__bildmarke { height: 64px; width: auto; }
.site-header__textmarke { height: 80px; width: auto; }
@media (max-width: 520px) {
  .site-header__textmarke { display: none; }
  .site-header__bildmarke { height: 52px; }
}
.site-header__nav a {
  margin-left: 1.8rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
  font-weight: 500;
}
.site-header__nav a:hover { color: var(--copper); }

/* ---------- Hero ---------- */
.hero {
  padding: clamp(4rem, 9vw, 7.5rem) 0 clamp(3rem, 7vw, 5.5rem);
  position: relative;
  overflow: hidden;
}
.hero .container { position: relative; }
.hero__eyebrow {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--mute);
  margin-bottom: 1.5rem;
  font-weight: 500;
}
.hero h1 .claim-amp { color: var(--copper); font-style: italic; font-weight: 600; }
.hero__lead {
  font-size: clamp(1.1rem, 1.5vw, 1.25rem);
  color: var(--ink-soft);
  max-width: 38em;
  margin-top: 1.5rem;
}
.hero__cta {
  margin-top: 2.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* dezente Schaltplan-Linie im Hero-Hintergrund */
.hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 70% 30%, #000 0%, transparent 65%);
  opacity: 0.55;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  transition: transform 120ms ease, background 120ms ease, color 120ms ease;
}
.btn:hover { background: var(--copper); border-color: var(--copper); color: var(--white); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--white); border-color: var(--ink); }
.btn__arrow { transition: transform 120ms ease; }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ---------- Sections ---------- */
section { padding: clamp(3.5rem, 7vw, 6rem) 0; }
section + section { border-top: 1px solid var(--line); }
.section__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--copper);
  font-weight: 600;
  margin-bottom: 0.9rem;
}
.section__intro { max-width: 44em; color: var(--ink-soft); }

/* ---------- Leistungen-Grid ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
  margin-top: 3rem;
}
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem 1.6rem;
  position: relative;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}
.card__tag {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 600;
}
.card h3 { margin: 0.5rem 0 0.4rem; }
.card p { color: var(--ink-soft); font-size: 0.97rem; margin: 0; }
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--copper);
}
.card--featured {
  border-color: var(--copper);
  background: linear-gradient(180deg, #fff 0%, #FFF7F0 100%);
}
.card--featured .card__tag { color: var(--copper); }
.card--featured:hover { transform: translateY(-2px); box-shadow: 0 12px 32px -18px rgba(233,122,56,0.55); }
.card--planned { opacity: 0.7; }
.card--planned .card__tag { color: var(--mute); }

/* ---------- Über / Profil ---------- */
.about {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: start;
}
@media (min-width: 820px) {
  .about { grid-template-columns: 1.1fr 1fr; gap: 4rem; }
}
.about__panel {
  border-left: 2px solid var(--copper);
  padding: 0.2rem 0 0.2rem 1.4rem;
}
.about__panel dt { font-weight: 600; color: var(--ink); margin-top: 1rem; }
.about__panel dd { margin: 0.1rem 0 0; color: var(--ink-soft); }

/* ---------- Kontakt ---------- */
.contact {
  background: var(--ink);
  color: var(--white);
  border-radius: var(--radius);
  padding: clamp(2rem, 4vw, 3rem);
  display: grid;
  gap: 2rem;
}
@media (min-width: 720px) { .contact { grid-template-columns: 1.3fr 1fr; align-items: center; } }
.contact h2 { color: var(--white); margin: 0; }
.contact p { color: rgba(255,255,255,0.78); }
.contact a { color: var(--white); border-bottom: 1px solid rgba(255,255,255,0.4); }
.contact a:hover { color: var(--copper); border-color: var(--copper); }
.contact .btn { background: var(--copper); border-color: var(--copper); }
.contact .btn:hover { background: var(--white); color: var(--ink); border-color: var(--white); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.4rem 0 2.5rem;
  color: var(--mute);
  font-size: 0.88rem;
  background: var(--white);
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 2.2rem;
  align-items: center;
  justify-content: space-between;
}
.site-footer__brand { display: flex; align-items: center; gap: 0.9rem; }
.site-footer__brand strong { color: var(--ink); font-weight: 600; }
.site-footer__brand .amp { font-size: 1.05em; }
.site-footer__meta a { color: var(--mute); }
.site-footer__meta a + a { margin-left: 1.4rem; }
.site-footer__meta a:hover { color: var(--copper); }

/* ---------- Impressum-Seite ---------- */
.legal {
  padding: clamp(2.5rem, 5vw, 4rem) 0 clamp(3rem, 6vw, 5rem);
}
.legal h1 { font-size: clamp(2rem, 3.5vw, 2.6rem); margin-bottom: 0.6em; }
.legal h2 {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--copper);
  margin-top: 2.4rem;
  margin-bottom: 0.6em;
}
.legal p, .legal address {
  max-width: 44em;
  font-style: normal;
  color: var(--ink-soft);
}
.legal .placeholder {
  display: inline-block;
  padding: 0.05rem 0.45rem;
  background: #FFF1E2;
  color: var(--copper);
  border: 1px dashed var(--copper);
  border-radius: 3px;
  font-family: var(--f-mono);
  font-size: 0.85em;
}
.legal .back { margin-top: 2.5rem; }

/* ---------- Zurück-Link (generisch) ---------- */
.back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--ink);
}
.back:hover { color: var(--copper); }

/* ---------- Eingebetteter Bereich (iframe, full-bleed) ---------- */
/* Flex-Layout statt fester Höhenrechnung: das iframe bekommt den
   tatsächlichen Restplatz zwischen Header und Footer, egal wie hoch
   beide sind (z. B. bei umbrechender Navigation auf Mobile). */
body.tools-page {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}
.tools-page main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.embed {
  padding: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.embed__frame {
  display: block;
  width: 100%;
  flex: 1;
  min-height: 480px;
  border: 0;
  background: var(--white);
}
.legal__stand {
  margin-top: 3rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--mute);
}
.legal address strong { color: var(--ink); }

/* ---------- Tools-Seite ---------- */
.tools-page .site-header__nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
}
.tools-page .site-header__nav a.tools-back {
  margin-left: 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--ink-soft);
}
.tools-page .site-header__nav a.tools-back:hover { color: var(--copper); }
.tools-page .site-header__nav .tools-sep {
  width: 1px;
  height: 1.2rem;
  background: var(--line);
  display: inline-block;
}
.tools-page #tools-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.tools-page .site-header__nav button {
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.4rem 0.95rem;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink-soft);
  border-radius: 999px;
  cursor: pointer;
  transition: color 120ms ease, border-color 120ms ease, background 120ms ease;
}
.tools-page .site-header__nav button:hover {
  color: var(--copper);
}
.tools-page .site-header__nav button[aria-pressed="true"] {
  color: var(--copper);
  border-color: var(--copper);
}
.tools-page .site-header__nav button[aria-pressed="true"][data-internal="true"]::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-left: 0.45rem;
  border-radius: 50%;
  background: var(--copper);
  vertical-align: middle;
  transform: translateY(-1px);
}

.tools-page .site-header__nav a.tools-ext {
  margin-left: 0;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.4rem 0.95rem;
  color: var(--ink-soft);
  border: 1px solid transparent;
  border-radius: 999px;
  transition: color 120ms ease, border-color 120ms ease;
}
.tools-page .site-header__nav a.tools-ext:hover {
  color: var(--copper);
  border-color: var(--copper);
}
.tools-page .site-header__nav a.tools-ext span {
  font-size: 0.85em;
  opacity: 0.7;
  margin-left: 0.15em;
}

.tools-page .site-header__nav a.tools-source {
  margin-left: 0.2rem;
  padding-left: 0.8rem;
  border-left: 1px solid var(--line);
  font-family: var(--f-mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--mute);
}
.tools-page .site-header__nav a.tools-source:hover { color: var(--copper); }
.tools-page .site-header__nav a.tools-source span {
  font-size: 0.85em;
  opacity: 0.7;
  margin-left: 0.15em;
}

/* ---------- Print ---------- */
@media print {
  .site-header, .site-footer, .hero__cta, .contact { display: none; }
  body { background: #fff; }
}