/* ───────────────────────────────────────────────────────
   Friedrich Gröger — IT Solutions & Services
   Editorial / Brutalist Dark
   ─────────────────────────────────────────────────────── */

:root {
  --ink: #0a0a0a;
  --paper: #f2f0ec;
  --muted: rgba(242, 240, 236, 0.7);
  --dim: rgba(242, 240, 236, 0.4);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.12);
  --accent: oklch(72% 0.18 50);
  --display: 'Space Grotesk', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --serif: 'Instrument Serif', 'Times New Roman', serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--display);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; }

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

button { font-family: inherit; cursor: pointer; }

::selection { background: var(--accent); color: var(--ink); }

/* ─────────── Typography helpers ─────────── */
em { font-family: var(--serif); font-weight: 400; font-style: italic; letter-spacing: -0.02em; }
.accent { color: var(--accent); }

.kicker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dim);
}
.kicker.accent { color: var(--accent); }

/* ─────────── Stripes placeholder ─────────── */
.stripes {
  background-image:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.06) 0 2px, transparent 2px 14px),
    linear-gradient(180deg, #1f1f1f, #0f0f0f);
  position: relative;
  overflow: hidden;
}
.stripes__caption {
  position: absolute;
  bottom: 12px;
  left: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  background: rgba(0,0,0,0.45);
  padding: 4px 8px;
}

/* ─────────── Reveal on scroll ─────────── */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-in { opacity: 1; transform: translateY(0); }

/* ─────────── NAV ─────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid var(--line);
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nav__logo {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: none;
  text-decoration: none;
}
.nav__logo span { color: var(--accent); }
.nav__links { display: flex; gap: 32px; }
.nav__links a { color: var(--muted); text-decoration: none; transition: color .15s; }
.nav__links a:hover { color: var(--paper); }
.nav__cta {
  background: var(--accent); color: var(--ink);
  padding: 10px 16px;
  text-decoration: none;
  font-weight: 600;
  transition: filter .15s;
}
.nav__cta:hover { filter: brightness(1.08); }
.nav__burger { display: none; background: none; border: none; padding: 8px; gap: 4px; flex-direction: column; }
.nav__burger span { display: block; width: 22px; height: 2px; background: var(--paper); }

/* ─────────── HERO ─────────── */
.hero {
  padding: 96px 32px 80px;
  border-bottom: 1px solid var(--line);
}
.meta-strip {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 56px;
}
.hero__title {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(64px, 14vw, 200px);
  line-height: 0.85;
  font-weight: 500;
  letter-spacing: -0.05em;
}
.hero__title em { font-weight: 300; }

.hero__grid {
  margin-top: 80px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 32px;
  align-items: start;
}
.hero__portrait { height: 360px; }
.hero__bio { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.bio__col .kicker { color: var(--accent); margin-bottom: 16px; }
.bio__col p { font-size: 20px; line-height: 1.4; margin: 0; }

/* ─────────── Marquee ─────────── */
.marquee {
  border-bottom: 1px solid var(--line);
  padding: 24px 0;
  white-space: nowrap;
  overflow: hidden;
}
.marquee__track {
  display: inline-block;
  animation: marq 40s linear infinite;
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 500;
  letter-spacing: -0.02em;
}
.marquee__track span { display: inline-block; margin-right: 48px; }
.marquee__track i { color: var(--accent); font-style: normal; }
@keyframes marq {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ─────────── Sections ─────────── */
.section {
  padding: 96px 32px;
  border-bottom: 1px solid var(--line);
}
.section__head {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 32px;
  margin-bottom: 48px;
}
.section__head--simple { display: block; margin-bottom: 64px; }
.section__head--simple .kicker { margin-bottom: 12px; }
.section__title {
  margin: 12px 0 0;
  font-family: var(--display);
  font-size: clamp(56px, 8vw, 120px);
  line-height: 0.9;
  font-weight: 500;
  letter-spacing: -0.04em;
}

/* ─────────── Filter ─────────── */
.filter { display: flex; flex-wrap: wrap; gap: 8px; max-width: 480px; justify-content: flex-end; }
.filter__btn {
  padding: 8px 14px;
  border: 1px solid rgba(255,255,255,0.2);
  background: transparent;
  color: var(--paper);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all .15s;
}
.filter__btn:hover { border-color: var(--paper); }
.filter__btn.is-active {
  background: var(--accent);
  color: var(--ink);
  border-color: var(--accent);
}

/* ─────────── Projekte ─────────── */
.projects { display: grid; gap: 0; }
.project {
  display: grid;
  grid-template-columns: 80px 1fr 360px 200px;
  gap: 32px;
  padding: 32px 24px;
  border-top: 1px solid var(--line-strong);
  align-items: start;
  transition: background .2s;
}
.project:hover { background: rgba(255,255,255,0.03); }
.project[hidden] { display: none; }

.project__num {
  font-family: var(--mono); font-size: 11px;
  color: var(--dim); letter-spacing: 0.08em;
}
.project__num span { display: block; margin-top: 8px; }

.project__title {
  font-family: var(--display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 8px 0 16px;
  line-height: 1.05;
}
.project__summary {
  font-size: 15px; line-height: 1.5;
  color: var(--muted);
  margin: 0 0 20px;
  max-width: 540px;
}

.project__img { height: 200px; transition: transform .3s; }
.project:hover .project__img { transform: scale(1.02); }

.project__result {
  border-left: 1px solid var(--line-strong);
  padding-left: 24px;
}
.project__result p { margin: 0; font-size: 13px; line-height: 1.5; }
.project__result .kicker { margin-bottom: 8px; }
.project__more {
  margin-top: 16px;
  font-family: var(--mono); font-size: 11px;
  color: var(--dim);
  transition: color .2s;
}
.project:hover .project__more { color: var(--accent); }

/* ─────────── Tags ─────────── */
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags span {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.05em;
  padding: 4px 8px;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.7);
}

/* ─────────── Services ─────────── */
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}
.service {
  background: var(--ink);
  padding: 32px;
  min-height: 240px;
}
.service__head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 24px;
}
.service__n { font-family: var(--mono); font-size: 11px; color: var(--accent); letter-spacing: 0.1em; }
.service__arrow { font-family: var(--mono); font-size: 12px; color: var(--dim); }
.service h3 {
  font-size: 28px; font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}
.service p {
  font-size: 14px; line-height: 1.5;
  color: var(--muted);
  margin: 0 0 20px;
}

/* ─────────── About ─────────── */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.about__text p {
  font-size: 18px; line-height: 1.6;
  color: rgba(242,240,236,0.8);
  margin: 0 0 24px;
}
.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line-strong);
  margin-bottom: 32px;
}
.stat { background: var(--ink); padding: 24px 16px; }
.stat__n {
  font-size: 56px; font-weight: 500;
  letter-spacing: -0.04em; line-height: 1;
  color: var(--accent);
}
.stat__l {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: rgba(242,240,236,0.5); margin-top: 8px;
}
.private {
  border-top: 1px solid var(--line-strong);
  padding-top: 24px;
}
.private p { font-size: 14px; line-height: 1.6; color: var(--muted); margin: 12px 0 0; }

/* ─────────── Contact ─────────── */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}
.contact__list {
  font-family: var(--mono); font-size: 13px; line-height: 2;
  color: rgba(242,240,236,0.75);
  margin: 0;
}
.contact__list > div { display: flex; gap: 16px; }
.contact__list dt { color: var(--dim); width: 80px; }
.contact__list dd { margin: 0; }
.contact__list a { color: inherit; text-decoration: none; }
.contact__list a:hover { color: var(--accent); }

.contact__form-wrap { border: 1px solid var(--line-strong); padding: 32px; }

.form .field { display: block; margin-bottom: 20px; }
.form .field > span {
  display: block;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(242,240,236,0.5);
  margin-bottom: 8px;
}
.form input, .form textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  color: var(--paper);
  font-family: inherit;
  font-size: 16px;
  padding: 8px 0;
  outline: none;
  resize: none;
  transition: border-color .15s;
}
.form input:focus, .form textarea:focus { border-bottom-color: var(--accent); }
.form .hp { position: absolute; left: -9999px; }
.form button {
  margin-top: 8px;
  width: 100%;
  padding: 16px;
  background: var(--accent);
  color: var(--ink);
  border: none;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  transition: filter .15s;
}
.form button:hover { filter: brightness(1.08); }

.form-success {
  display: flex; flex-direction: column; justify-content: center;
  min-height: 320px;
}
.form-success__icon { font-size: 48px; color: var(--accent); margin-bottom: 16px; }
.form-success h3 { font-size: 28px; margin: 0 0 8px; font-weight: 500; }
.form-success p { color: var(--muted); margin: 0; }

/* ─────────── Footer ─────────── */
.footer {
  padding: 24px 32px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--dim);
}
.footer a { color: inherit; text-decoration: none; }
.footer a:hover { color: var(--paper); }

/* ─────────── Legal pages ─────────── */
.legal {
  max-width: 760px;
  margin: 0 auto;
  padding: 96px 32px;
}
.legal h1 {
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 0.9;
  margin: 0 0 48px;
}
.legal h2 { font-size: 24px; font-weight: 500; margin: 32px 0 12px; letter-spacing: -0.01em; }
.legal h3 { font-size: 18px; font-weight: 500; margin: 24px 0 8px; }
.legal p, .legal li { font-size: 15px; line-height: 1.6; color: rgba(242,240,236,0.8); }
.legal a { color: var(--accent); }

/* ─────────── Responsive ─────────── */
@media (max-width: 960px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__portrait { height: 280px; }
  .hero__bio { grid-template-columns: 1fr; gap: 32px; }
  .project { grid-template-columns: 1fr; gap: 16px; }
  .project__img { height: 240px; order: 3; }
  .project__result { border-left: none; padding-left: 0; border-top: 1px solid var(--line-strong); padding-top: 16px; order: 4; }
  .services { grid-template-columns: 1fr 1fr; }
  .about, .contact { grid-template-columns: 1fr; gap: 48px; }
  .section__head { flex-direction: column; align-items: flex-start; }
  .filter { justify-content: flex-start; max-width: none; }
}
@media (max-width: 640px) {
  .nav { padding: 14px 20px; }
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: flex; }
  .nav__links.is-open {
    display: flex;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--ink);
    border-bottom: 1px solid var(--line);
    padding: 16px 20px;
  }
  .nav__links.is-open a { padding: 12px 0; border-top: 1px solid var(--line); }
  .hero, .section { padding: 64px 20px; }
  .footer { padding: 24px 20px; }
  .services { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .meta-strip { flex-direction: column; gap: 4px; margin-bottom: 32px; }
  .hero__title { font-size: clamp(48px, 16vw, 96px); }
}

/* ─────────── Reduced motion ─────────── */
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}