/* ============================================================
   MERIDIAN — Bauträger / Projektentwicklung
   Plantilla 11 · Space Grotesk + IBM Plex Sans
   ============================================================ */

/* ---- Fonts (variable, self-hosted) ---- */
@font-face {
  font-family: 'Space Grotesk';
  src: url('../fonts/space-grotesk-var.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Sans';
  src: url('../fonts/ibm-plex-sans-var.woff2') format('woff2');
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

/* ---- Tokens ---- */
:root {
  --concrete-50:  #f5f2ec;
  --concrete-100: #ece7dd;
  --concrete-200: #ddd5c6;
  --concrete-300: #c8bfae;
  --ink:    #1b1c1e;
  --ink-2:  #24262a;
  --graphite: #3a3d42;
  --muted:  #6c6f75;
  --bronze: #a97f45;
  --bronze-2: #c39a5e;
  --line:   rgba(27,28,30,.12);
  --line-light: rgba(245,242,236,.16);

  --font-display: 'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif;

  --shell: 1200px;
  --pad: clamp(1.15rem, 4vw, 2.5rem);
  --radius: 4px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---- Reset-ish ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--ink);
  background: var(--concrete-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-family: var(--font-display); font-weight: 500; line-height: 1.05; letter-spacing: -0.01em; }
p { margin: 0; }
ul, ol, dl { margin: 0; padding: 0; list-style: none; }

.shell { width: 100%; max-width: var(--shell); margin-inline: auto; padding-inline: var(--pad); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--concrete-50); padding: .6rem 1rem; border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--bronze-2); outline-offset: 3px; }

/* ---- Buttons ---- */
.btn {
  --btn-fg: var(--ink);
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--font-display); font-weight: 500; font-size: .95rem;
  letter-spacing: .01em; padding: .85rem 1.6rem; border-radius: var(--radius);
  border: 1px solid transparent; cursor: pointer; transition: transform .3s var(--ease), background-color .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease);
}
.btn--primary { background: var(--bronze); color: #fff; }
.btn--primary:hover { background: var(--bronze-2); transform: translateY(-2px); }
.btn--ghost { border-color: var(--line-light); color: var(--concrete-100); }
.btn--ghost:hover { border-color: var(--bronze-2); color: #fff; transform: translateY(-2px); }
.btn--block { width: 100%; }

/* ---- Eyebrows / heads ---- */
.eyebrow {
  font-family: var(--font-display); font-weight: 500; font-size: .78rem;
  letter-spacing: .22em; text-transform: uppercase; color: var(--bronze-2);
  margin: 0 0 1rem;
}
.eyebrow--dark { color: var(--bronze); }
.section__head { max-width: 46rem; margin: 0 auto clamp(2.2rem,5vw,3.6rem); text-align: center; }
.section__head--left { text-align: left; margin-inline: 0; }
.section__title { font-size: clamp(1.9rem, 4.4vw, 3.2rem); }
.section__intro { margin-top: 1.1rem; color: var(--muted); font-size: 1.06rem; }
.section--dark .section__intro { color: var(--concrete-200); }

/* ---- Header ---- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  transition: background-color .4s var(--ease), backdrop-filter .4s var(--ease), box-shadow .4s var(--ease);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; padding-block: 1.15rem; }
.site-header.is-scrolled {
  background: rgba(20,21,23,.86);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--line-light);
}
.brand { display: inline-flex; align-items: baseline; gap: .55rem; color: var(--concrete-50); }
.brand__mark {
  width: 12px; height: 12px; border: 2px solid var(--bronze-2);
  transform: rotate(45deg); align-self: center;
}
.brand__word { font-family: var(--font-display); font-weight: 700; letter-spacing: .16em; font-size: 1.05rem; }
.brand__sub { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--concrete-300); }
@media (max-width: 560px){ .brand__sub { display: none; } }

.site-nav ul { display: flex; align-items: center; gap: 2rem; }
.site-nav a { color: var(--concrete-100); font-size: .95rem; font-family: var(--font-display); font-weight: 500; letter-spacing: .01em; position: relative; padding: .2rem 0; }
.site-nav a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 1px; width: 100%;
  background: var(--bronze-2); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.site-nav a:not(.nav-cta):hover::after { transform: scaleX(1); }
.nav-cta { border: 1px solid var(--line-light); padding: .5rem 1.1rem; border-radius: var(--radius); }
.nav-cta:hover { border-color: var(--bronze-2); color: #fff; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 42px; height: 42px; align-items: center; justify-content: center; background: none; border: 1px solid var(--line-light); border-radius: var(--radius); cursor: pointer; }
.nav-toggle span { width: 20px; height: 2px; background: var(--concrete-100); transition: transform .3s var(--ease), opacity .3s var(--ease); }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px);
    background: rgba(18,19,21,.98); backdrop-filter: blur(12px);
    transform: translateX(100%); transition: transform .4s var(--ease);
    padding: 6rem var(--pad) 2rem; box-shadow: -20px 0 60px rgba(0,0,0,.4);
  }
  .site-nav.is-open { transform: translateX(0); }
  .site-nav ul { flex-direction: column; align-items: flex-start; gap: 1.4rem; }
  .site-nav a { font-size: 1.15rem; }
}

/* ---- Hero ---- */
.hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 78% 8%, #2b2f35 0%, rgba(43,47,53,0) 55%),
    linear-gradient(180deg, #161719 0%, #1c1e21 60%, #1b1c1e 100%);
  color: var(--concrete-50);
  padding: clamp(9rem, 18vh, 12rem) 0 clamp(4rem, 10vh, 7rem);
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--line-light) 1px, transparent 1px), linear-gradient(90deg, var(--line-light) 1px, transparent 1px);
  background-size: 64px 64px; opacity: .35; mask-image: radial-gradient(90% 70% at 50% 30%, #000 20%, transparent 75%);
}
.hero__inner { position: relative; z-index: 1; max-width: 54rem; }
.hero__title { font-size: clamp(2.6rem, 7.5vw, 5.4rem); font-weight: 500; letter-spacing: -0.025em; }
.hero__title .accent { color: var(--bronze-2); }
.hero__lead { margin-top: 1.8rem; max-width: 40rem; font-size: clamp(1.05rem, 1.8vw, 1.28rem); color: var(--concrete-200); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.4rem; }
.hero__scrollcue { margin-top: clamp(3rem, 8vh, 5rem); font-family: var(--font-display); font-size: .8rem; letter-spacing: .18em; text-transform: uppercase; color: var(--concrete-300); display: flex; align-items: center; gap: .8rem; }
.hero__scrollcue::before { content: ""; width: 46px; height: 1px; background: var(--bronze-2); }

/* ============================================================
   SIGNATURE BUILD STAGE
   ============================================================ */
.build-stage { background: #1b1c1e; color: var(--concrete-100); }
.build-track { position: relative; }

/* Default (no-JS / fallback): readable, image + phase grid */
.build-viz { position: relative; padding: clamp(2rem,6vw,4rem) 0; }
.build-canvas { display: none; }
.build-fallback {
  width: 100%; height: auto; border-radius: var(--radius);
  box-shadow: 0 30px 80px rgba(0,0,0,.45);
}
.build-hud { max-width: var(--shell); margin-inline: auto; padding-inline: var(--pad); }
.build-hud__kicker {
  font-family: var(--font-display); font-weight: 500; font-size: .8rem;
  letter-spacing: .22em; text-transform: uppercase; color: var(--bronze-2);
  margin: clamp(1.6rem,4vw,2.4rem) 0 1.4rem;
}
.phase-hud { display: grid; gap: 1.6rem; grid-template-columns: 1fr; }
.phase {
  border-top: 1px solid var(--line-light); padding-top: 1.1rem;
  display: grid; gap: .4rem;
}
.phase__no { font-family: var(--font-display); font-weight: 700; color: var(--bronze-2); font-size: .9rem; letter-spacing: .1em; }
.phase__title { font-size: 1.5rem; color: #fff; }
.phase__text { color: var(--concrete-200); font-size: .98rem; max-width: 30rem; }
.build-progress { display: none; }

@media (min-width: 720px) {
  .phase-hud { grid-template-columns: repeat(2, 1fr); gap: 2rem 3rem; }
}

/* JS-enabled 3D mode: pin canvas, scrub, cross-fade phase HUD */
.js-build .build-track { height: 460vh; }
.js-build .build-viz {
  position: sticky; top: 0; height: 100vh; padding: 0; overflow: hidden;
  display: block;
}
.js-build .build-canvas { display: block; position: absolute; inset: 0; width: 100%; height: 100%; }
.js-build .build-fallback { display: none; }

.js-build .build-hud {
  position: absolute; inset: auto auto clamp(1.6rem,5vh,3rem) 0;
  width: 100%; padding-inline: var(--pad); margin: 0;
  pointer-events: none;
}
.js-build .build-hud__kicker { margin: 0 0 1rem; }
.js-build .phase-hud { display: block; position: relative; min-height: 9.5rem; max-width: 34rem; }
.js-build .phase {
  position: absolute; inset: 0 auto auto 0; width: 100%;
  border-top: none; padding-top: 0;
  opacity: 0; transform: translateY(14px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
.js-build .phase.is-active { opacity: 1; transform: translateY(0); }
.js-build .phase__no { display: inline-block; }
.js-build .phase__title { font-size: clamp(1.8rem,3.4vw,2.6rem); margin: .2rem 0 .5rem; }
.js-build .phase__title::before {
  content: ""; display: inline-block; width: 26px; height: 2px; background: var(--bronze-2);
  vertical-align: middle; margin-right: .7rem;
}
.js-build .phase__text { font-size: 1.02rem; }
.js-build .build-progress {
  display: block; position: absolute; left: var(--pad); right: var(--pad); bottom: 0;
  height: 2px; background: var(--line-light); max-width: 34rem; margin-top: 1.4rem;
}
.js-build .build-progress { position: static; margin-top: 1.6rem; }
.build-progress__bar { display: block; height: 100%; width: 0%; background: var(--bronze-2); transition: width .2s linear; }

/* ---- Generic sections ---- */
.section { padding-block: clamp(4rem, 9vw, 7.5rem); }
.section--dark { background: var(--ink); color: var(--concrete-100); }
.section--soft { background: var(--concrete-100); }

/* ---- Projekte ---- */
.projekt-grid { display: grid; gap: 1.8rem; grid-template-columns: 1fr; }
@media (min-width: 680px) { .projekt-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .projekt-grid { grid-template-columns: repeat(3, 1fr); } }
.projekt-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.projekt-card:hover { transform: translateY(-6px); box-shadow: 0 26px 60px rgba(27,28,30,.14); }
.projekt-card__visual { aspect-ratio: 4 / 3; background: var(--concrete-200); }
.projekt-card__visual svg { width: 100%; height: 100%; }
.projekt-card__body { padding: 1.5rem 1.5rem 1.8rem; }
.projekt-card__status { font-family: var(--font-display); font-size: .76rem; letter-spacing: .12em; text-transform: uppercase; color: var(--bronze); margin-bottom: .6rem; }
.projekt-card__title { font-size: 1.35rem; }
.projekt-card__desc { margin-top: .7rem; color: var(--muted); font-size: .96rem; }
.projekt-card__meta { display: flex; flex-wrap: wrap; gap: 1.2rem 1.8rem; margin-top: 1.3rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.projekt-card__meta dt { font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.projekt-card__meta dd { margin: .15rem 0 0; font-family: var(--font-display); font-weight: 500; font-size: 1.02rem; }

/* ---- Zahlen ---- */
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.4rem 1.5rem; }
@media (min-width: 760px) { .stat-grid { grid-template-columns: repeat(4, 1fr); } }
.stat { text-align: center; border-top: 1px solid var(--line-light); padding-top: 1.4rem; }
.stat__value { font-family: var(--font-display); font-weight: 500; font-size: clamp(2.4rem, 6vw, 3.6rem); color: #fff; letter-spacing: -0.02em; }
.stat__label { margin-top: .5rem; color: var(--concrete-200); font-size: .92rem; letter-spacing: .02em; }

/* ---- Garantien ---- */
.garantien__inner { display: grid; gap: clamp(2.4rem,5vw,4rem); grid-template-columns: 1fr; align-items: start; }
@media (min-width: 900px) { .garantien__inner { grid-template-columns: 0.9fr 1.1fr; } }
.garantie-list { display: grid; gap: 1.6rem; grid-template-columns: 1fr; }
@media (min-width: 560px) { .garantie-list { grid-template-columns: repeat(2, 1fr); } }
.garantie { border-top: 2px solid var(--bronze); padding-top: 1.1rem; }
.garantie__no { font-family: var(--font-display); font-weight: 700; color: var(--bronze); font-size: .85rem; letter-spacing: .12em; }
.garantie h3 { font-size: 1.2rem; margin: .5rem 0 .5rem; }
.garantie p { color: var(--muted); font-size: .95rem; }

/* ---- Team ---- */
.team-grid { display: grid; gap: 1.6rem; grid-template-columns: 1fr; }
@media (min-width: 680px) { .team-grid { grid-template-columns: repeat(3, 1fr); } }
.team-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem 1.6rem; text-align: center; }
.team-card__avatar {
  display: inline-grid; place-items: center; width: 68px; height: 68px; border-radius: 50%;
  background: linear-gradient(140deg, var(--bronze), var(--bronze-2)); color: #fff;
  font-family: var(--font-display); font-weight: 700; letter-spacing: .05em; font-size: 1.2rem; margin-bottom: 1rem;
}
.team-card__name { font-size: 1.2rem; }
.team-card__role { margin-top: .4rem; color: var(--muted); font-size: .92rem; }

/* ---- Kontakt ---- */
.kontakt__inner { display: grid; gap: clamp(2.4rem,5vw,4rem); grid-template-columns: 1fr; align-items: start; }
@media (min-width: 900px) { .kontakt__inner { grid-template-columns: 1fr 1fr; } }
.kontakt__facts { margin-top: 2rem; display: grid; gap: 1rem; }
.kontakt__facts li { display: flex; flex-wrap: wrap; gap: .6rem; align-items: baseline; border-top: 1px solid var(--line-light); padding-top: 1rem; }
.kontakt__facts span { font-family: var(--font-display); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--bronze-2); min-width: 5rem; }
.kontakt__facts a:hover { color: var(--bronze-2); }

.kontakt-form { background: rgba(255,255,255,.03); border: 1px solid var(--line-light); border-radius: var(--radius); padding: clamp(1.5rem,4vw,2.4rem); display: grid; gap: 1.1rem; }
.field { display: grid; gap: .4rem; }
.field label { font-family: var(--font-display); font-size: .82rem; letter-spacing: .06em; color: var(--concrete-200); }
.field input, .field select, .field textarea {
  width: 100%; font-family: var(--font-body); font-size: 1rem; color: var(--concrete-50);
  background: rgba(0,0,0,.24); border: 1px solid var(--line-light); border-radius: var(--radius);
  padding: .8rem .9rem; transition: border-color .3s var(--ease), background-color .3s var(--ease);
}
.field textarea { resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: rgba(236,231,221,.4); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--bronze-2); background: rgba(0,0,0,.34); outline: none; }
.field select { appearance: none; }
.form-note { font-size: .8rem; color: var(--concrete-300); text-align: center; }

/* ---- Footer ---- */
.site-footer { background: #141517; color: var(--concrete-200); padding-block: clamp(2.6rem,6vw,4rem); }
.site-footer__inner { display: grid; gap: 1.8rem; }
@media (min-width: 720px) { .site-footer__inner { grid-template-columns: 1fr auto; align-items: center; } }
.site-footer__brand .brand__word { color: var(--concrete-50); font-size: 1.2rem; }
.site-footer__brand p { color: var(--concrete-300); font-size: .9rem; margin-top: .3rem; }
.site-footer__nav { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.site-footer__nav a { font-family: var(--font-display); font-size: .9rem; }
.site-footer__nav a:hover { color: var(--bronze-2); }
.site-footer__note { grid-column: 1 / -1; font-size: .82rem; color: var(--muted); border-top: 1px solid var(--line-light); padding-top: 1.4rem; }

/* ---- Reveals (fail-open) ---- */
[data-reveal].reveal-init { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
[data-reveal].reveal-init.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .btn, .projekt-card, .phase, .site-header, .site-nav { transition: none !important; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}