/* ============================================================
   Valentin Weber — Freelance IT Consulting
   Eigenständiges Stylesheet, keine externen Abhängigkeiten
   ============================================================ */

:root {
  --bg: #f7f8fa;
  --bg-alt: #ffffff;
  --bg-deep: #0e1b2c;
  --bg-deep-alt: #13233a;
  --text: #1c2733;
  --text-soft: #4d5b6a;
  --text-inverse: #eef3f9;
  --text-inverse-soft: #a8b8ca;
  --accent: #1f6feb;
  --accent-strong: #1554b5;
  --accent-soft: #e3edfc;
  --border: #dde3ea;
  --border-deep: #24384f;
  --shadow: 0 1px 3px rgba(15, 30, 50, 0.06), 0 8px 24px rgba(15, 30, 50, 0.07);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b141f;
    --bg-alt: #101c2b;
    --bg-deep: #0a1420;
    --bg-deep-alt: #0f1e30;
    --text: #e6edf5;
    --text-soft: #9fb0c2;
    --text-inverse: #eef3f9;
    --text-inverse-soft: #9fb0c2;
    --accent: #4c8dff;
    --accent-strong: #75a8ff;
    --accent-soft: #16283f;
    --border: #223349;
    --border-deep: #223349;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-strong); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg-alt) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  letter-spacing: 0.01em;
}

.brand span { color: var(--accent); }

.main-nav { display: flex; gap: 26px; align-items: center; }

.main-nav a {
  color: var(--text-soft);
  font-size: 0.92rem;
  font-weight: 500;
}

.main-nav a:hover { color: var(--text); }

.nav-cta {
  background: var(--accent);
  color: #ffffff !important;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
}

.nav-cta:hover { background: var(--accent-strong); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text);
}

.nav-toggle svg { display: block; }

/* ---------- Hero ---------- */

.hero {
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(31, 111, 235, 0.22), transparent 60%),
    radial-gradient(800px 420px at 0% 110%, rgba(31, 111, 235, 0.12), transparent 55%),
    var(--bg-deep);
  color: var(--text-inverse);
  padding: 96px 0 88px;
}

.hero .kicker {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent-strong);
  color: #8db6ff;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  max-width: 820px;
}

.hero .subline {
  margin-top: 22px;
  font-size: 1.12rem;
  color: var(--text-inverse-soft);
  max-width: 700px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.hero-tags span {
  border: 1px solid var(--border-deep);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-inverse-soft);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.85rem;
}

.hero-actions { margin-top: 38px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary { background: var(--accent); color: #ffffff; }
.btn-primary:hover { background: var(--accent-strong); color: #ffffff; }

.btn-ghost {
  border: 1px solid var(--border-deep);
  color: var(--text-inverse);
}
.btn-ghost:hover { border-color: #ffffff; color: #ffffff; }

/* ---------- Sections ---------- */

section { padding: 84px 0; }

.section-head { max-width: 720px; margin-bottom: 48px; }

.section-head .kicker {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  font-weight: 750;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

.section-head p { margin-top: 14px; color: var(--text-soft); }

.alt-bg { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ---------- Leistungen ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 22px;
}

.card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.alt-bg .card { background: var(--bg); }

.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
}

.card h3 { font-size: 1.12rem; font-weight: 700; margin-bottom: 10px; }

.card ul { list-style: none; margin-top: 4px; }

.card li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  color: var(--text-soft);
  font-size: 0.94rem;
}

.card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.75;
}

/* ---------- Branchen / Zahlen ---------- */

.fact-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 22px;
  margin-bottom: 56px;
}

.fact {
  text-align: center;
  padding: 26px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.fact strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.fact span { color: var(--text-soft); font-size: 0.9rem; }

.chip-list { display: flex; flex-wrap: wrap; gap: 10px; }

.chip {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 0.9rem;
  color: var(--text-soft);
}

/* ---------- Zertifizierungen ---------- */

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.cert {
  display: flex;
  gap: 14px;
  align-items: baseline;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
}

.cert code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

.cert span { font-size: 0.92rem; color: var(--text-soft); }

.cert-note { margin-top: 26px; color: var(--text-soft); font-size: 0.95rem; }

.method-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }

.method-badges span {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.88rem;
  border-radius: 8px;
  padding: 7px 14px;
}

/* ---------- Über mich ---------- */

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p { margin-bottom: 16px; color: var(--text-soft); }
.about-text p strong { color: var(--text); }

.about-aside {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}

.about-aside h3 { font-size: 1rem; font-weight: 700; margin-bottom: 14px; }

.about-aside ul { list-style: none; }

.about-aside li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.93rem;
  color: var(--text-soft);
}

.about-aside li:last-child { border-bottom: none; }

.about-aside li strong { color: var(--text); display: block; font-size: 0.88rem; }

/* ---------- Kontakt ---------- */

.contact {
  background:
    radial-gradient(900px 400px at 15% -20%, rgba(31, 111, 235, 0.2), transparent 60%),
    var(--bg-deep);
  color: var(--text-inverse);
}

.contact .section-head h2, .contact .section-head .kicker { color: var(--text-inverse); }
.contact .section-head .kicker { color: #8db6ff; }
.contact .section-head p { color: var(--text-inverse-soft); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
}

.contact-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-deep);
  border-radius: var(--radius);
  padding: 26px;
}

.contact-card .label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-inverse-soft);
  margin-bottom: 8px;
}

.contact-card a, .contact-card .value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-inverse);
  word-break: break-word;
}

.contact-card a:hover { color: #8db6ff; }

.contact-note {
  margin-top: 30px;
  font-size: 0.88rem;
  color: var(--text-inverse-soft);
  max-width: 720px;
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--bg-deep);
  color: var(--text-inverse-soft);
  border-top: 1px solid var(--border-deep);
  padding: 28px 0;
  font-size: 0.88rem;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
}

.footer-links { display: flex; gap: 22px; }

.footer-links a { color: var(--text-inverse-soft); }
.footer-links a:hover { color: var(--text-inverse); }

/* ---------- Rechtsseiten ---------- */

.legal-page { padding: 72px 0 96px; max-width: 820px; margin: 0 auto; }

.legal-page h1 {
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.legal-page .updated { color: var(--text-soft); font-size: 0.9rem; margin-bottom: 40px; }

.legal-page h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 40px 0 12px;
}

.legal-page h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 26px 0 8px;
}

.legal-page p, .legal-page li { color: var(--text-soft); margin-bottom: 12px; }

.legal-page ul { padding-left: 22px; margin-bottom: 16px; }

.legal-page address { font-style: normal; color: var(--text); line-height: 1.8; margin-bottom: 16px; }

.placeholder {
  background: #fff3cd;
  color: #7a5b00;
  border-radius: 4px;
  padding: 1px 6px;
  font-weight: 600;
}

@media (prefers-color-scheme: dark) {
  .placeholder { background: #4a3b06; color: #ffd970; }
}

.back-link { display: inline-block; margin-bottom: 34px; font-size: 0.92rem; font-weight: 600; }

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .main-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    display: none;
    padding: 10px 0;
  }

  .main-nav.open { display: flex; }

  .main-nav a { padding: 13px 24px; }

  .nav-cta { margin: 10px 24px 6px; text-align: center; }

  .nav-toggle { display: block; }

  .main-nav.simple {
    position: static;
    display: flex;
    flex-direction: row;
    gap: 18px;
    background: none;
    border-bottom: none;
    padding: 0;
  }

  .main-nav.simple a { padding: 0; }

  section { padding: 64px 0; }

  .hero { padding: 72px 0 64px; }
}