/*
Theme Name: Carbacan Theme
Theme URI: https://carbacan.com
Author: Carbacan GmbH
Author URI: https://carbacan.com
Description: Custom WordPress theme for Carbacan with integrated React 3D KnowledgeSphere
Version: 1.1.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 8.0
License: Proprietary
License URI: https://carbacan.com
Text Domain: carbacan
*/

:root {
  /* B2B Color Scheme - MAXIMAL 3 HINTERGRUNDFARBEN */
  --color-primary: #1E3A8A;
  --color-secondary: #3B82F6;
  --color-neutral: #475569;
  --color-neutral-light: #94A3B8;
  
  /* HINTERGRUNDFARBEN (maximal 3) */
  --color-bg-white: #FFFFFF;        /* Hintergrund 1: Weiß */
  --color-bg-light: #F8FAFC;        /* Hintergrund 2: Hellgrau */
  --color-bg-dark: #0A0E27;         /* Hintergrund 3: Dunkel (für 3D Sphere) */
  
  --color-text: #1E293B;
  --color-text-light: #FFFFFF;

  /* Matrix Colors (for 3D Sphere) */
  --color-matrix-green: #00FF41;
  --color-matrix-glow: #008F11;

  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-mono: 'JetBrains Mono', monospace;

  --font-size-hero: 3.5rem;
  --font-size-h1: 2.5rem;
  --font-size-h2: 2rem;
  --font-size-h3: 1.5rem;
  --font-size-body: 1.125rem;
  --font-size-small: 0.875rem;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Header */
  --header-height: 80px;
}

@media (max-width: 768px) {
  :root {
    --font-size-hero: 2rem;
    --font-size-h1: 1.75rem;
    --font-size-h2: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --header-height: 60px;
  }
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }

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

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

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

/* ==========================================================================
   HEADER & NAVIGATION - BLAUER HINTERGRUND
   ========================================================================== */

.site-header {
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--spacing-md);
}

.site-branding a {
  color: var(--color-text-light);
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
}

.site-branding a:hover {
  color: var(--color-text-light);
  opacity: 0.9;
}

/* Navigation Menu */
.main-navigation {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  margin: 0;
  padding: 0;
}

.nav-menu li {
  margin: 0;
}

.nav-menu a {
  color: var(--color-text-light);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 0.25rem;
  transition: background 0.2s ease;
}

.nav-menu a:hover,
.nav-menu .current-menu-item a {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-light);
}

/* Language Switcher */
.language-switcher {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-link {
  color: var(--color-text-light);
  font-weight: 500;
  padding: 0.25rem 0.5rem;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.lang-link:hover,
.lang-link.active {
  opacity: 1;
  color: var(--color-text-light);
}

.separator {
  color: rgba(255, 255, 255, 0.3);
}

/* Burger Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  position: relative;
  width: 40px;
  height: 40px;
}

.menu-icon,
.menu-icon::before,
.menu-icon::after {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--color-text-light);
  border-radius: 3px;
  transition: all 0.3s ease;
}

.menu-icon {
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}

.menu-icon::before,
.menu-icon::after {
  content: '';
  position: absolute;
  left: 0;
}

.menu-icon::before {
  top: -8px;
}

.menu-icon::after {
  top: 8px;
}

/* Burger Menu Animation - Open State */
.menu-toggle[aria-expanded="true"] .menu-icon {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  
  .main-navigation {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-primary);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  
  .main-navigation.active {
    max-height: 400px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  }
  
  .nav-menu {
    flex-direction: column;
    padding: var(--spacing-sm);
    gap: 0;
  }
  
  .nav-menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .nav-menu a {
    display: block;
    padding: var(--spacing-sm);
  }
  
  .language-switcher {
    padding: var(--spacing-sm);
    justify-content: center;
  }
}

/* ==========================================================================
   SECTIONS - 3 HINTERGRUNDFARBEN
   ========================================================================== */

section {
  padding: var(--spacing-xl) 0;
}

/* Hintergrund 1: Weiß */
section.hero-text,
section.services-preview,
section.cta {
  background: var(--color-bg-white);
}

/* Hintergrund 2: Hellgrau */
section.bg-alt,
section.team-teaser {
  background: var(--color-bg-light);
}

/* Hintergrund 3: Dunkel (für 3D Sphere) */
section.sphere-section {
  background: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: var(--spacing-xl) 0;
}

/* ==========================================================================
   HERO TEXT SECTION
   ========================================================================== */

.hero-text {
  padding-top: calc(var(--spacing-xl) + var(--header-height));
  padding-bottom: var(--spacing-xl);
  text-align: center;
  background: var(--color-bg-white);
}

.hero-title {
  font-size: var(--font-size-hero);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  /* Bessere Lesbarkeit: Solide Farbe statt Gradient-Text */
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--color-neutral);
  margin-bottom: var(--spacing-md);
  font-weight: 500;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-neutral);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ==========================================================================
   3D SPHERE SECTION
   ========================================================================== */

.sphere-section .section-title {
  font-size: var(--font-size-h2);
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-light);
}

.sphere-container {
  width: 100%;
  height: 600px;
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
}

@media (max-width: 768px) {
  .sphere-container {
    height: 400px;
  }
}

/* ==========================================================================
   LAYOUT
   ========================================================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn-primary {
  display: inline-block;
  padding: 1rem 2rem;
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--color-secondary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
  color: #fff;
}

.btn-link {
  color: var(--color-secondary);
  font-weight: 600;
  transition: color 0.2s ease;
}

.btn-link:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   GRID SYSTEMS
   ========================================================================== */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   SERVICE CARDS
   ========================================================================== */

.service-card {
  padding: var(--spacing-md);
  border-radius: 0.5rem;
  border: 1px solid #E2E8F0;
  transition: all 0.3s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  border-color: var(--color-secondary);
}

.service-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.service-card p {
  color: var(--color-neutral);
  margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   TEAM CARDS
   ========================================================================== */

.team-member-card {
  text-align: center;
  padding: var(--spacing-md);
  border-radius: 0.5rem;
  transition: transform 0.3s ease;
}

.team-member-card:hover {
  transform: translateY(-4px);
}

.team-avatar {
  width: 150px;
  height: 150px;
  margin: 0 auto var(--spacing-sm);
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-primary);
}

.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-member-card h3 {
  margin-bottom: 0.25rem;
}

.team-member-card .role {
  color: var(--color-neutral);
  font-size: var(--font-size-small);
}

/* ==========================================================================
   CTA SECTION
   ========================================================================== */

.cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-light);
}

.cta h2 {
  color: var(--color-text-light);
}

.cta p {
  color: var(--color-text-light);
  opacity: 0.95;
}

/* ==========================================================================
   PAGE TEMPLATES - Einheitliches Design für alle Seiten
   ========================================================================== */

/* Page Header Section (für page.php) */
.page-header-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: var(--color-text-light);
  padding: calc(var(--spacing-xl) + var(--header-height)) 0 var(--spacing-xl);
  text-align: center;
}

.page-title {
  font-size: var(--font-size-h1);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
}

.page-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  opacity: 0.95;
  max-width: 700px;
  margin: 0 auto;
}

/* Page Content Section */
.page-content-section {
  background: var(--color-bg-white);
  padding: var(--spacing-xl) 0;
}

.entry-content {
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.8;
}

.entry-content h2 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.entry-content h3 {
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  color: var(--color-neutral);
}

.entry-content p {
  margin-bottom: var(--spacing-sm);
}

.entry-content ul,
.entry-content ol {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.entry-content li {
  margin-bottom: 0.5rem;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-col h3 {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
}

.footer-col p,
.footer-col a {
  color: var(--color-text-light);
  opacity: 0.9;
}

.footer-col a:hover {
  opacity: 1;
  text-decoration: underline;
}

.footer-menu {
  list-style: none;
  padding: 0;
}

.footer-menu li {
  margin-bottom: 0.5rem;
}

.footer-menu a {
  color: var(--color-text-light);
  opacity: 0.9;
  transition: opacity 0.2s ease;
}

.footer-menu a:hover {
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--spacing-md);
  text-align: center;
}

.footer-legal {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
}

.footer-legal p {
  color: var(--color-text-light);
  opacity: 0.8;
  margin: 0;
}

.footer-legal-menu {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.footer-legal-menu a {
  color: var(--color-text-light);
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.footer-legal-menu a:hover {
  opacity: 1;
}

.footer-legal-menu .separator {
  color: rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }