/* ---------- Farbthemen ---------- */
:root {
  --bg: #fdf6ec;
  --card: #fff9f2;
  --text: #3b2a1e;
  --muted: #7a5c48;
  --accent: #c2410c;
  --accent-soft: #fde7d3;
  --border: #ecd9c4;
  --header-bg: rgba(253, 246, 236, 0.92);
  --btn-text: #ffffff;
  --radius: 12px;
}

[data-theme="dark"] {
  --bg: #1f1510;
  --card: #2a1d16;
  --text: #f3e6da;
  --muted: #bfa592;
  --accent: #fb923c;
  --accent-soft: #3a2619;
  --border: #3d2a1f;
  --header-bg: rgba(31, 21, 16, 0.92);
  --btn-text: #1f1510;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Header / Navigation ---------- */
header {
  position: sticky;
  top: 0;
  background: var(--header-bg);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

nav {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
}

.logo {
  justify-self: start;
  display: block;
}

.logo img {
  height: 36px;
  width: auto;
  display: block;
}

nav ul {
  justify-self: center;
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

nav a:hover,
nav a[aria-current="page"] {
  color: var(--accent);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.crane-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.nav-right {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  background: var(--accent-soft);
  border: 1px solid var(--border);
  color: var(--text);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, transform 0.2s;
}

.theme-toggle:hover {
  border-color: var(--accent);
  transform: rotate(15deg);
}

.theme-toggle:focus-visible,
.lang-toggle button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Sprach-Umschalter ---------- */
.lang-toggle {
  display: flex;
  align-items: center;
  height: 32px;
  padding: 2px;
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
}

.lang-toggle button {
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0 0.6rem;
  height: 100%;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.lang-toggle button:hover {
  color: var(--accent);
}

.lang-toggle button.active {
  background: var(--accent);
  color: var(--btn-text);
}

/* ---------- Layout ---------- */
main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.page {
  padding: 5rem 0;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1.15;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.page-title {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 1.5rem;
}

.page-title .crane-icon {
  width: 32px;
  height: 32px;
  color: var(--accent);
}

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

/* ---------- Startseite / Hero ---------- */
.hero {
  padding: 6rem 0;
}

.hero p.lead {
  color: var(--muted);
  font-size: 1.2rem;
  margin-top: 1rem;
  max-width: 600px;
}

.btn {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--btn-text);
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.85;
}

/* ---------- Über mich ---------- */
.about p {
  color: var(--muted);
  max-width: 700px;
  margin-bottom: 1rem;
}

.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.skills span {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.9rem;
}

/* ---------- Bauen / Projekte ---------- */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.card .tags {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--accent);
}

/* ---------- Kontakt ---------- */
.contact p {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.contact a {
  color: var(--accent);
  text-decoration: none;
  font-size: 1.1rem;
}

.contact a:hover {
  text-decoration: underline;
}

/* ---------- Footer ---------- */
footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}

footer a {
  color: var(--muted);
}

/* ---------- Mobil ---------- */
@media (max-width: 600px) {
  nav {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .logo,
  .nav-right {
    justify-self: center;
  }

  nav ul {
    gap: 1rem;
  }

  .page {
    padding: 3.5rem 0;
  }

  .hero {
    padding: 4rem 0;
  }
}