/* ==========================================================================
   Generative Crafting — Stylesheet
   Technical / professional dark theme with generative line-art accents.
   ========================================================================== */

:root {
  /* Dark theme (default) */
  --bg: #0a0e14;
  --bg-alt: #0e131c;
  --surface: #131a24;
  --surface-border: #232c3a;
  --text: #e8edf4;
  --text-muted: #93a1b5;
  --accent: #ff6a3d;
  --accent-2: #00d9c0;
  --header-bg: rgba(10, 14, 20, 0.85);
  --grid-line: rgba(255, 255, 255, 0.03);

  --brand-orange: #ff6a3d;
  --brand-teal: #00d9c0;
  --accent-grad: linear-gradient(135deg, var(--brand-orange), var(--brand-teal));
  --font-body: 'Space Grotesk', system-ui, -apple-system, Segoe UI, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  --radius: 10px;
  --max-width: 1180px;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f6f4f0;
    --bg-alt: #edeae2;
    --surface: #ffffff;
    --surface-border: #ddd6c9;
    --text: #181b21;
    --text-muted: #5c6472;
    --accent: #cf4a1f;
    --accent-2: #0b8a76;
    --header-bg: rgba(246, 244, 240, 0.85);
    --grid-line: rgba(0, 0, 0, 0.045);
  }
}

:root[data-theme="light"] {
  --bg: #f6f4f0;
  --bg-alt: #edeae2;
  --surface: #ffffff;
  --surface-border: #ddd6c9;
  --text: #181b21;
  --text-muted: #5c6472;
  --accent: #cf4a1f;
  --accent-2: #0b8a76;
  --header-bg: rgba(246, 244, 240, 0.85);
  --grid-line: rgba(0, 0, 0, 0.045);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s ease, color 0.2s ease;
}

@media (prefers-reduced-motion: reduce) {
  body { transition: none; }
}

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

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

/* Background grid overlay */
.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--surface-border);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo { width: 38px; height: 38px; }

.brand-name {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.2;
  letter-spacing: 0.02em;
  font-weight: 500;
}

.main-nav {
  display: flex;
  gap: 28px;
}

.main-nav a {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
  white-space: nowrap;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-toggle {
  background: none;
  border: 1px solid var(--surface-border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
}
.lang-toggle .lang-current { color: var(--text); font-weight: 600; }

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--surface-border);
  color: var(--text);
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 6px;
  cursor: pointer;
}
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
}

.hero-inner { position: relative; z-index: 1; max-width: 640px; }

.eyebrow, .section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-2);
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.15;
  margin: 0 0 22px;
  font-weight: 600;
}

.hero-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 34px;
  max-width: 520px;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-visual {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 460px;
  height: 460px;
  color: var(--accent-2);
  opacity: 0.5;
  z-index: 0;
}

.hero-mesh { width: 100%; height: 100%; animation: rotate 40s linear infinite; }

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--accent-grad);
  color: #0a0e14;
  font-weight: 600;
}
.btn-primary:hover { opacity: 0.92; }

.btn-outline {
  border-color: var(--surface-border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--accent-2); }

/* ---------- Capabilities strip ---------- */
.capabilities {
  border-top: 1px solid var(--surface-border);
  border-bottom: 1px solid var(--surface-border);
  background: var(--bg-alt);
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 36px 24px;
}

.cap-item { display: flex; flex-direction: column; gap: 6px; text-align: center; }

.cap-value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--accent);
  font-weight: 600;
}

.cap-label { font-size: 0.82rem; color: var(--text-muted); }

/* ---------- Sections ---------- */
.section { padding: 96px 0; position: relative; z-index: 1; }
.section-alt { background: var(--bg-alt); }

.section h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.3rem);
  margin: 0 0 16px;
  font-weight: 600;
}

.section-lead {
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 48px;
}

/* ---------- Portfolio ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.portfolio-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 18px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.portfolio-card:hover { border-color: var(--accent-2); transform: translateY(-3px); }

.portfolio-card h3 { margin: 4px 0 8px; font-size: 1.08rem; }
.portfolio-card p { color: var(--text-muted); font-size: 0.92rem; margin: 8px 0 0; }

.portfolio-thumb {
  aspect-ratio: 4 / 3;
  border-radius: 6px;
  border: 1px dashed var(--surface-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  position: relative;
  overflow: hidden;
}

.portfolio-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.7);
  background: rgba(0,0,0,0.35);
  padding: 4px 10px;
  border-radius: 20px;
  z-index: 1;
}

.thumb-1 { background: linear-gradient(135deg, #ff6a3d33, var(--surface)); }
.thumb-2 { background: linear-gradient(135deg, #00d9c033, var(--surface)); }
.thumb-3 { background: linear-gradient(135deg, #8b5cf633, var(--surface)); }
.thumb-4 { background: linear-gradient(135deg, #f4c14033, var(--surface)); }
.thumb-5 { background: linear-gradient(135deg, #ff6a3d33, #00d9c022); }
.thumb-6 { background: linear-gradient(135deg, #00d9c033, #8b5cf622); }

.tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin: 0; }

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--surface-border);
  color: var(--text-muted);
  padding: 3px 8px;
  border-radius: 20px;
}

/* ---------- Process ---------- */
.process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
}

.process-list li { position: relative; padding-left: 4px; }

.process-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 10px;
}

.process-list h3 { font-size: 1.05rem; margin: 0 0 8px; }
.process-list p { color: var(--text-muted); font-size: 0.92rem; margin: 0; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
}

.about-tagline {
  font-weight: 600;
  margin: 0 0 18px;
}

.about-facts {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.92rem;
}
.about-facts strong { color: var(--text-muted); font-weight: 500; margin-right: 8px; }

.about-visual { color: var(--accent-2); opacity: 0.5; }
.about-mesh { width: 100%; height: auto; }

/* ---------- Order form ---------- */
.order-form {
  max-width: 640px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-field { display: flex; flex-direction: column; gap: 8px; }

.form-field label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.form-field input,
.form-field select,
.form-field textarea {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 6px;
  padding: 11px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent-2);
}

.order-form .btn { align-self: flex-start; }

.form-status { font-size: 0.9rem; min-height: 1.2em; }
.form-status.success { color: var(--accent-2); }
.form-status.error { color: var(--accent); }

.form-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  opacity: 0.7;
  font-family: var(--font-mono);
}

/* ---------- Contact ---------- */
.contact-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-list li { display: flex; flex-direction: column; gap: 4px; }
.contact-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.contact-list a { color: var(--accent-2); }
.placeholder-text { color: var(--text-muted); font-style: italic; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--surface-border);
  padding: 28px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-inner a:hover { color: var(--text); }

/* ---------- Legal (Impressum) ---------- */
.legal-content { max-width: 720px; }
.legal-content h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin: 0 0 8px;
  font-weight: 600;
}
.legal-content h2 {
  font-size: 1.05rem;
  margin: 36px 0 10px;
  font-weight: 600;
}
.legal-content p {
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 4px;
}
.legal-content a { color: var(--accent-2); text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 220px; margin: 0 auto; }
  .capabilities-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .main-nav {
    position: fixed;
    top: 66px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--surface-border);
    flex-direction: column;
    padding: 20px 24px 28px;
    gap: 18px;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .nav-toggle { display: flex; }
  .hero-visual { display: none; }
  .hero { padding: 80px 0 60px; }
  .form-row { grid-template-columns: 1fr; }
  .capabilities-grid { grid-template-columns: 1fr 1fr; }
}