/* ============================================================
   PetriiArt — Design Tokens
   Switch the palette by editing these variables.
   ============================================================ */
:root {
  /* Brand palette — light theme: white + sky blue */
  --bg: #ffffff;
  --bg-elevated: #f5f9fd;
  --card: #ffffff;
  --card-hover: #f0f6fc;
  --text: #0e2233;
  --text-muted: #5b7388;
  --accent: #38bdf8;          /* sky-400 */
  --accent-hover: #0ea5e9;    /* sky-500 */
  --accent-deep: #0284c7;     /* sky-600 — for text on light bg */
  --accent-soft: rgba(56, 189, 248, 0.10);
  --accent-glow: rgba(56, 189, 248, 0.18);
  --border: #e2eef8;
  --border-strong: #c9deef;

  /* Status */
  --success: #10b981;
  --error: #ef4444;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(14, 34, 51, 0.05);
  --shadow-md: 0 4px 12px rgba(14, 34, 51, 0.08);
  --shadow-lg: 0 12px 32px rgba(14, 34, 51, 0.10);

  /* Layout */
  --max-width: 1200px;
  --transition: 180ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--accent-deep);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent-hover);
}

/* ============================================================
   Layout helpers
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-24) 0;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 600;
  margin: 0 0 var(--space-4);
  letter-spacing: -0.01em;
  color: var(--text);
}

.section-subtitle {
  color: var(--text-muted);
  margin: 0 0 var(--space-12);
  font-size: 1.05rem;
}

/* ============================================================
   Header & nav
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.nav-links {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-8);
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--accent-deep);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.lang-toggle {
  display: inline-flex;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.lang-toggle button {
  background: transparent;
  border: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

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

.lang-toggle button:hover:not(.active) {
  color: var(--text);
}

/* Mobile menu toggle */
.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: 0;
  padding: var(--space-2);
  cursor: pointer;
}

.menu-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
  .menu-toggle {
    display: none;
  }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  padding: var(--space-24) 0 var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at top, var(--accent-soft) 0%, transparent 60%),
    linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: var(--space-4);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  margin: 0 0 var(--space-6);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto var(--space-8);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  font-family: inherit;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

/* ============================================================
   Product grid
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.product-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.product-image {
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, #e9f3fc 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--accent);
  position: relative;
  overflow: hidden;
}

.product-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(255,255,255,0.6));
  pointer-events: none;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  flex: 1;
}

.product-name {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0;
  color: var(--text);
}

.product-description {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0;
  flex: 1;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

.product-price {
  font-weight: 600;
  color: var(--accent-deep);
}

.product-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}
.product-card-link:hover,
.product-card-link:focus {
  color: inherit;
  text-decoration: none;
}
.product-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: var(--space-3);
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  pointer-events: none; /* let the parent <a> handle the click */
}
.products-source {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 var(--space-4);
}

/* ============================================================
   Category filter
   ============================================================ */
.category-filter {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  justify-content: center;
}

.category-btn {
  padding: var(--space-2) var(--space-4);
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.category-btn:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.category-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

/* ============================================================
   About
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.about-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0 0 var(--space-4);
}

.about-image {
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, var(--bg-elevated) 0%, #e9f3fc 100%);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--accent);
  position: relative;
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* ============================================================
   Contact
   ============================================================ */
.contact {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-soft);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-deep);
  flex-shrink: 0;
}

.contact-detail-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0 0 var(--space-1);
}

.contact-detail-value {
  font-weight: 500;
  margin: 0;
  color: var(--text);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  background: var(--card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-status {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.10);
  color: #047857;
  border: 1px solid #10b981;
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.10);
  color: #b91c1c;
  border: 1px solid #ef4444;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid var(--border);
  background: var(--bg-elevated);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: var(--space-3) 0 0;
  max-width: 360px;
}

.footer-column h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin: 0 0 var(--space-4);
}

.footer-column ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-column a {
  color: var(--text);
  font-size: 0.95rem;
}

.footer-column a:hover {
  color: var(--accent-deep);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: center;
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
}

.footer-legal {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  justify-content: center;
}
.footer-legal a {
  color: var(--text-muted);
  text-decoration: none;
}
.footer-legal a:hover {
  color: var(--accent-deep);
  text-decoration: underline;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ============================================================
   Utility
   ============================================================ */
[hidden] {
  display: none !important;
}

/* Smooth focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: var(--accent-soft);
  color: var(--accent-deep);
}

/* ============================================================
   Legal pages (Impressum, Datenschutz)
   ============================================================ */
.legal-page {
  max-width: 800px;
  padding: var(--space-12) var(--space-6) var(--space-16);
}
.legal-page h1 {
  font-size: 2rem;
  margin-bottom: var(--space-2);
  color: var(--text);
}
.legal-updated {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-8);
  font-style: italic;
}
.legal-section {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border);
}
.legal-section:last-of-type {
  border-bottom: none;
}
.legal-section h2 {
  font-size: 1.25rem;
  margin: 0 0 var(--space-3);
  color: var(--text);
}
.legal-section h3 {
  font-size: 1rem;
  margin: var(--space-4) 0 var(--space-2);
  color: var(--text);
  font-weight: 600;
}
.legal-section p,
.legal-section ul {
  color: var(--text);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}
.legal-section ul {
  padding-left: var(--space-6);
}
.legal-section li {
  margin-bottom: var(--space-2);
}
.legal-section a {
  color: var(--accent-deep);
  text-decoration: underline;
}
.legal-section a:hover {
  color: var(--accent);
}
.legal-optional {
  color: var(--text-muted);
  font-weight: normal;
  font-size: 0.85em;
}
.legal-back {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
}
.legal-back a {
  color: var(--accent-deep);
}
[data-fill] {
  /* Subtle marker so you can see unfilled placeholders at a glance */
  background: rgba(56, 189, 248, 0.10);
  padding: 0 0.25rem;
  border-radius: 3px;
}