/* =========================================================================
   main.css — Tokens, Typografie, Layout  ·  Variante 2 "Raute"
   Motiv: das Rauten-/Diamant-Zeichen des Logos zieht sich durch die Seite.
   ========================================================================= */

:root {
  --bg:          #fbfbfd;
  --surface:     #f1f3f8;
  --surface-2:   #e7eaf2;
  --ink:         #11131a;
  --text:        #3a4150;
  --muted:       #6a7081;
  --line:        #e3e6ef;
  --line-strong: #d2d7e4;

  --accent:        #2c5fd6;
  --accent-hover:  #2350bd;
  --accent-deep:   #1d3f95;
  --accent-ink:    #ffffff;
  --accent-soft:   rgba(44, 95, 214, 0.09);
  --accent-ring:   rgba(44, 95, 214, 0.32);

  --space-1: .5rem; --space-2: 1rem; --space-3: 1.5rem; --space-4: 2rem; --space-5: 3rem; --space-6: 4rem;
  --section-y: clamp(4.5rem, 9vw, 7.5rem);

  --radius: 16px; --radius-sm: 11px; --radius-lg: 24px;
  --maxw: 1140px;
  --shadow-sm: 0 1px 2px rgba(17,19,26,.05), 0 3px 10px rgba(17,19,26,.05);
  --shadow-md: 0 16px 44px rgba(17,19,26,.12);
  --shadow-accent: 0 18px 44px rgba(44,95,214,.24);

  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --t-eyebrow: .8rem; --t-body: 1.0625rem; --t-lead: clamp(1.05rem,1.6vw,1.28rem);
  --t-h3: 1.35rem; --t-h2: clamp(2rem,4vw,3rem); --t-h1: clamp(2.6rem,6.2vw,4.6rem);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body); font-size: var(--t-body); line-height: 1.65;
  color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  transition: background-color .3s ease, color .3s ease; overflow-x: hidden;
}
body.is-nav-open { overflow: hidden; }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
input, textarea { font: inherit; color: inherit; }
ul { list-style: none; padding: 0; }

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

.skip-link { position: absolute; left: 50%; top: -60px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: .6rem 1rem; border-radius: 0 0 10px 10px; z-index: 200; transition: top .2s ease; }
.skip-link:focus { top: 0; }

h1, h2, h3 { font-family: var(--font-display); color: var(--ink); line-height: 1.06; font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: var(--t-h3); line-height: 1.2; }
p { text-wrap: pretty; }
strong { color: var(--ink); font-weight: 600; }
em { font-style: normal; color: var(--muted); }

/* Eyebrow mit Rauten-Marker */
.eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--font-display); font-size: var(--t-eyebrow); font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent);
  margin-bottom: var(--space-2);
}
.eyebrow::before { content: ""; width: 10px; height: 10px; background: var(--accent); transform: rotate(45deg); border-radius: 2px; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(1.1rem, 4vw, 2rem); }
.section { padding-block: var(--section-y); scroll-margin-top: 90px; }
.section--alt { background: var(--surface); border-block: 1px solid var(--line); }
.section__head { max-width: 46rem; margin-bottom: clamp(2.5rem,5vw,3.5rem); }
.section__title { font-size: var(--t-h2); margin-bottom: var(--space-2); }
.section__lead { font-size: var(--t-lead); color: var(--muted); }

.grid { display: grid; gap: clamp(1rem,2.4vw,1.5rem); }
.grid--services { grid-template-columns: repeat(2,1fr); }
.grid--projects { grid-template-columns: repeat(2,1fr); }
.grid--pricing  { grid-template-columns: repeat(3,1fr); align-items: stretch; }

/* ---------- Hero ----------------------------------------------------------- */
.hero { position: relative; padding-block: clamp(4.5rem,10vw,8rem) clamp(3rem,6vw,5rem); scroll-margin-top: 90px; overflow: hidden; }
.hero__bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(120% 90% at 80% 0%, #000 0%, transparent 65%);
          mask-image: radial-gradient(120% 90% at 80% 0%, #000 0%, transparent 65%);
  opacity: .6;
}
.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(2rem,5vw,4rem); align-items: center; }
.hero__title { font-size: var(--t-h1); margin-bottom: var(--space-3); max-width: 14ch; }
.hero__lead { font-size: var(--t-lead); color: var(--muted); max-width: 46ch; margin-bottom: var(--space-4); }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* Logo-Medaillon mit Rauten-Ringen */
.hero__mark { position: relative; display: grid; place-items: center; aspect-ratio: 1; max-width: 360px; margin-inline: auto; }
.hero__logo { width: clamp(120px, 18vw, 168px); height: auto; position: relative; z-index: 2; }
.rune { position: absolute; border: 2px solid var(--accent); border-radius: 14px; transform: rotate(45deg); opacity: .25; }
.rune--1 { width: 64%; height: 64%; }
.rune--2 { width: 92%; height: 92%; opacity: .14; border-color: var(--ink); }
@media (prefers-reduced-motion: no-preference) {
  .rune--1 { animation: float 7s ease-in-out infinite; }
  .rune--2 { animation: float 9s ease-in-out infinite reverse; }
}
@keyframes float { 0%,100% { transform: rotate(45deg) translateY(0); } 50% { transform: rotate(45deg) translateY(-10px); } }

.hero__strip { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-5); margin-top: clamp(2.5rem,5vw,3.5rem); padding-top: var(--space-4); border-top: 1px solid var(--line); color: var(--muted); }
.hero__strip strong { color: var(--ink); margin-right: .35rem; }

/* ---------- About ---------------------------------------------------------- */
.about { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(2rem,5vw,4rem); align-items: start; }
.about__text p { margin-top: var(--space-3); }
.about__facts { display: grid; gap: var(--space-2); }
.about__facts li { display: flex; align-items: baseline; gap: .7rem; padding: .9rem 1.1rem; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); }
.about__facts .dot { flex: none; width: 9px; height: 9px; background: var(--accent); transform: rotate(45deg); border-radius: 2px; }
.about__facts strong { margin-right: .15rem; }

/* ---------- Contact -------------------------------------------------------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem,5vw,4rem); align-items: start; }
.contact__intro p { color: var(--muted); margin-bottom: var(--space-4); max-width: 38ch; }
.contact__links { display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4); }
.contact__links a { color: var(--accent); font-weight: 600; border-bottom: 1px solid transparent; }
.contact__links a:hover { border-color: currentColor; }

/* ---------- Reveal --------------------------------------------------------- */
[data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.2,1); }
[data-reveal].is-visible { opacity: 1; transform: none; }
.grid [data-reveal]:nth-child(2){transition-delay:.06s}
.grid [data-reveal]:nth-child(3){transition-delay:.12s}
.grid [data-reveal]:nth-child(4){transition-delay:.18s}
.grid [data-reveal]:nth-child(5){transition-delay:.24s}
.grid [data-reveal]:nth-child(6){transition-delay:.30s}
@media (prefers-reduced-motion: reduce){ [data-reveal]{transition:none;transform:none;opacity:1} }

/* ---------- Responsive ----------------------------------------------------- */
@media (max-width: 880px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__mark { order: -1; max-width: 240px; }
  .about, .contact { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .grid--services, .grid--projects, .grid--pricing { grid-template-columns: 1fr; }
}
@media (min-width: 1200px) {
  .grid--services { grid-template-columns: repeat(4,1fr); }
  .grid--projects { grid-template-columns: repeat(3,1fr); }
}