/* ==========================================================================
   sebastianmuth.net – Stylesheet
   Dunkles, minimalistisches Design. Keine externen Ressourcen.
   ========================================================================== */

:root {
  /* Farben */
  --c-bg:            #0A0E14;
  --c-bg-alt:        #0F141C;
  --c-surface:       #141B25;
  --c-surface-hover: #1A2330;
  --c-border:        rgba(255, 255, 255, 0.08);
  --c-border-strong: rgba(255, 255, 255, 0.16);

  --c-text:          #E7EDF4;
  --c-text-muted:    #93A1B1;
  --c-text-dim:      #6B7A8C;

  --c-accent:        #2DD4BF;
  --c-accent-soft:   #5EEAD4;
  --c-accent-dim:    rgba(45, 212, 191, 0.12);
  --c-accent-2:      #38BDF8;

  /* Typografie */
  --ff: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Maße */
  --wrap: 1120px;
  --wrap-narrow: 760px;
  --radius: 14px;
  --radius-sm: 8px;
  --header-h: 76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--ff);
  font-size: 17px;
  line-height: 1.75;
  color: var(--c-text-muted);
  background-color: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--c-accent);
  text-decoration: none;
  transition: color .2s ease;
}
a:hover { color: var(--c-accent-soft); }

h1, h2, h3, h4 {
  color: var(--c-text);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 .6em;
}

h1 { font-size: clamp(2.4rem, 6vw, 4rem); }
h2 { font-size: clamp(1.75rem, 3.6vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.3rem); letter-spacing: -0.01em; }
h4 { font-size: 1.05rem; letter-spacing: 0; }

p { margin: 0 0 1.2em; }
p:last-child { margin-bottom: 0; }

ul { margin: 0 0 1.2em; padding-left: 1.3em; }
li { margin-bottom: .45em; }

::selection { background: var(--c-accent); color: #06231F; }

/* Inline-SVG-Icons (keine Icon-Fonts, keine externen Ressourcen) */
.ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.ico svg {
  width: 1em;
  height: 1em;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

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

/* ---------- Layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}
.wrap--narrow { max-width: var(--wrap-narrow); }

.section { padding: clamp(64px, 10vw, 120px) 0; }
.section--alt { background: var(--c-bg-alt); border-block: 1px solid var(--c-border); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  background: var(--c-accent);
  color: #06231F;
  padding: 12px 20px;
  font-weight: 600;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; color: #06231F; }

/* ---------- Scroll-Reveal (ersetzt AOS, ohne Bibliothek) ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s cubic-bezier(.22, 1, .36, 1), transform .7s cubic-bezier(.22, 1, .36, 1);
}
[data-reveal].is-visible { opacity: 1; transform: none; }
.no-js [data-reveal] { opacity: 1; transform: none; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: var(--c-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--c-text);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.brand:hover { color: var(--c-text); }

.brand__mark {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-2) 100%);
  color: #06231F;
  font-weight: 800;
  font-size: .95rem;
  letter-spacing: -0.03em;
}

/* Navigation */
.nav { display: flex; align-items: center; gap: 4px; }

.nav a {
  display: inline-block;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--c-text-muted);
  font-size: .95rem;
  font-weight: 500;
  transition: color .2s ease, background .2s ease;
}
.nav a:hover,
.nav a[aria-current="page"] { color: var(--c-text); background: rgba(255, 255, 255, 0.06); }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--c-text);
  font-size: 1.05rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

@media (max-width: 767px) {
  .nav-toggle { display: inline-flex; }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px 20px 22px;
    background: rgba(10, 14, 20, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--c-border);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .22s ease, transform .22s ease, visibility .22s;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav a { padding: 12px 14px; font-size: 1rem; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 48px) 0 72px;
  overflow: hidden;
}

.hero__glow {
  position: absolute;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(110px);
  opacity: .5;
}
.hero__glow--1 {
  width: 620px; height: 620px;
  top: -220px; right: -160px;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.30) 0%, transparent 70%);
}
.hero__glow--2 {
  width: 520px; height: 520px;
  bottom: -240px; left: -180px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.22) 0%, transparent 70%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--c-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 20%, transparent 75%);
  opacity: .7;
}

.hero__inner { position: relative; z-index: 2; max-width: 840px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 15px 7px 12px;
  margin-bottom: 26px;
  border: 1px solid var(--c-border-strong);
  border-radius: 999px;
  background: var(--c-accent-dim);
  color: var(--c-accent-soft);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.18);
}

.hero h1 { margin-bottom: .3em; }
.hero h1 .accent {
  background: linear-gradient(100deg, var(--c-accent) 0%, var(--c-accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--c-accent);
}

.hero__role {
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 500;
  color: var(--c-text);
  margin-bottom: .8em;
}

.hero__lead {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  max-width: 60ch;
  margin-bottom: 2.2em;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: .97rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: linear-gradient(100deg, var(--c-accent) 0%, var(--c-accent-2) 100%);
  color: #06231F;
  box-shadow: 0 8px 26px rgba(45, 212, 191, 0.22);
}
.btn--primary:hover { color: #06231F; box-shadow: 0 12px 32px rgba(45, 212, 191, 0.32); }

.btn--ghost {
  border-color: var(--c-border-strong);
  color: var(--c-text);
  background: transparent;
}
.btn--ghost:hover { color: var(--c-text); background: rgba(255, 255, 255, 0.05); border-color: var(--c-accent); }

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--c-text-dim);
  font-size: 1.1rem;
  animation: bob 2.4s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); }
  50%      { transform: translate(-50%, 9px); }
}

/* ---------- Section-Kopf ---------- */
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head--center { margin-inline: auto; text-align: center; }

.section-label {
  display: block;
  margin-bottom: 14px;
  color: var(--c-accent);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

/* ---------- Über mich ---------- */
.about {
  display: grid;
  grid-template-columns: 1.35fr .85fr;
  gap: clamp(32px, 6vw, 72px);
  align-items: start;
}
@media (max-width: 900px) { .about { grid-template-columns: 1fr; } }

.about__text p { font-size: 1.05rem; }
.about__text strong { color: var(--c-text); font-weight: 600; }

.facts {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.facts li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  margin: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
  transition: border-color .25s ease, background .25s ease, transform .25s ease;
}
.facts li:hover { border-color: var(--c-border-strong); background: var(--c-surface-hover); transform: translateY(-2px); }

.facts .ico {
  margin-top: 4px;
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--c-accent-dim);
  color: var(--c-accent);
  font-size: 1.05rem;
}
.facts .k {
  display: block;
  color: var(--c-text-dim);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  line-height: 1.4;
}
.facts .v { display: block; color: var(--c-text); font-weight: 600; line-height: 1.45; }

/* ---------- Porträt ---------- */
.portrait {
  position: relative;
  margin: 0 0 20px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-surface);
}
.portrait img {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  object-fit: cover;
  transition: transform .6s cubic-bezier(.22, 1, .36, 1);
}
.portrait:hover img { transform: scale(1.03); }
.portrait::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(190deg, transparent 55%, rgba(10, 14, 20, 0.55) 100%);
}

/* ---------- Bildergalerie ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  margin-top: 44px;
}

.gallery figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-surface);
  transition: border-color .25s ease, transform .25s ease;
}
.gallery figure:hover { border-color: var(--c-accent); transform: translateY(-3px); }

.gallery img {
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  transition: transform .6s cubic-bezier(.22, 1, .36, 1);
}
.gallery figure:hover img { transform: scale(1.05); }

.gallery figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 34px 18px 15px;
  background: linear-gradient(transparent, rgba(8, 11, 16, 0.92) 65%);
  color: var(--c-text);
  font-size: .92rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.gallery figcaption span {
  display: block;
  margin-top: 2px;
  color: var(--c-accent-soft);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.gallery .is-wide { grid-column: span 2; }
@media (max-width: 719px) { .gallery .is-wide { grid-column: span 1; } }

/* ---------- Schwerpunkte ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  padding: 30px 28px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
  overflow: hidden;
  transition: border-color .25s ease, transform .25s ease, background .25s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.card:hover { border-color: var(--c-border-strong); background: var(--c-surface-hover); transform: translateY(-4px); }
.card:hover::before { transform: scaleX(1); }

.card__icon {
  width: 46px; height: 46px;
  margin-bottom: 20px;
  border-radius: 12px;
  background: var(--c-accent-dim);
  color: var(--c-accent);
  font-size: 1.4rem;
}
.card h3 { margin-bottom: .5em; }
.card p { font-size: .96rem; margin: 0; }

/* ---------- Interessen ---------- */
.interests {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.interest {
  padding: 28px 26px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--c-surface) 0%, rgba(20, 27, 37, 0.35) 100%);
  transition: border-color .25s ease, transform .25s ease;
}
.interest:hover { border-color: var(--c-accent); transform: translateY(-4px); }
.interest .ico { margin-bottom: 16px; color: var(--c-accent); font-size: 1.7rem; }
.interest h3 { margin-bottom: .45em; }
.interest p { font-size: .95rem; margin: 0; }

/* Breite Karte über zwei Spalten */
.interest--wide { grid-column: span 2; }
@media (max-width: 719px) { .interest--wide { grid-column: span 1; } }

/* Chips (Reiseziele) */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.chips li {
  margin: 0;
  padding: 6px 13px;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--c-text-muted);
  font-size: .84rem;
  line-height: 1.5;
  transition: border-color .2s ease, color .2s ease;
}
.chips li:hover { border-color: var(--c-accent); color: var(--c-text); }

/* ---------- Kontakt ---------- */
.contact-card {
  position: relative;
  padding: clamp(38px, 6vw, 64px);
  border: 1px solid var(--c-border-strong);
  border-radius: 20px;
  background: linear-gradient(140deg, var(--c-surface) 0%, var(--c-bg) 100%);
  text-align: center;
  overflow: hidden;
}
.contact-card::after {
  content: "";
  position: absolute;
  width: 420px; height: 420px;
  top: -230px; left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.20) 0%, transparent 70%);
  filter: blur(70px);
  pointer-events: none;
}
.contact-card > * { position: relative; z-index: 1; }
.contact-card p { max-width: 52ch; margin-inline: auto; }

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 32px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  padding: 13px 22px;
  border: 1px solid var(--c-border-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--c-text);
  font-size: .95rem;
  font-weight: 500;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.contact-link:hover { color: var(--c-text); border-color: var(--c-accent); background: var(--c-accent-dim); transform: translateY(-2px); }
.contact-link .ico { color: var(--c-accent); font-size: 1.15rem; }

/* ---------- Footer ---------- */
.site-footer {
  padding: 56px 0 40px;
  border-top: 1px solid var(--c-border);
  background: var(--c-bg-alt);
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.site-footer p { margin: 0; font-size: .9rem; color: var(--c-text-dim); }

.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.footer-nav a { color: var(--c-text-muted); font-size: .9rem; }
.footer-nav a:hover { color: var(--c-accent); }

/* ---------- Rechtstexte (Unterseiten) ---------- */
.page-header {
  position: relative;
  padding: calc(var(--header-h) + 72px) 0 56px;
  border-bottom: 1px solid var(--c-border);
  overflow: hidden;
}
.page-header::before {
  content: "";
  position: absolute;
  width: 560px; height: 560px;
  top: -320px; right: -140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(45, 212, 191, 0.18) 0%, transparent 70%);
  filter: blur(90px);
  pointer-events: none;
}
.page-header > .wrap { position: relative; z-index: 1; }
.page-header h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: .25em; }
.page-header p { margin: 0; }

.legal { padding: clamp(48px, 8vw, 80px) 0 clamp(64px, 9vw, 100px); }
.legal h2 {
  margin-top: 2.2em;
  padding-top: 1.6rem;
  border-top: 1px solid var(--c-border);
  font-size: clamp(1.35rem, 2.6vw, 1.7rem);
}
.legal h2:first-of-type { margin-top: 0; padding-top: 0; border-top: 0; }
.legal h3 { margin-top: 1.9em; color: var(--c-text); }
.legal p, .legal li { font-size: 1rem; }
.legal address {
  margin: 0 0 1.4em;
  padding: 22px 26px;
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  color: var(--c-text);
  font-style: normal;
  line-height: 1.85;
}
.legal .note {
  padding: 20px 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-accent-dim);
  font-size: .95rem;
}
.legal .updated { margin-top: 3em; color: var(--c-text-dim); font-size: .88rem; }

/* ---------- Zurück nach oben ---------- */
.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--c-border-strong);
  border-radius: 50%;
  background: rgba(20, 27, 37, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--c-text);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s, border-color .2s ease, color .2s ease;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ---------- Bewegungsreduktion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* ---------- Druck ---------- */
@media print {
  :root { --c-bg: #fff; --c-text: #000; --c-text-muted: #333; }
  body { background: #fff; color: #000; }
  .site-header, .to-top, .scroll-hint, .hero__glow, .hero__grid { display: none !important; }
  a { color: #000; text-decoration: underline; }
}