/* 
 * Hauptstylesheet für die KI-Entwickler Website
 * Enthält grundlegende Stile, Layout und responsive Design
 */

/* ===== Variablen ===== */
:root {
  /* Farben (für Tagmodus) */
  --primary-color: #4a6bfb;
  --primary-hover: #3a5beb;
  --secondary-color: #8a3ffb;
  --background-color: #f8f9fa;
  --card-color: #ffffff;
  --text-color: #333333;
  --text-muted: #6c757d;
  --border-color: #e0e0e0;
  --shadow-color: rgba(0, 0, 0, 0.1);

  /* Fonts */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  --font-family-headings: 'Poppins', var(--font-family-base);
  --font-family-mono: 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;

  /* Abstände */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Breakpoints */
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;

  /* Container */
  --container-padding: var(--spacing-md);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;

  /* Border Radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;

  /* Box Shadows */
  --shadow-sm: 0 2px 4px var(--shadow-color);
  --shadow-md: 0 4px 8px var(--shadow-color);
  --shadow-lg: 0 6px 16px var(--shadow-color);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-base);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-headings);
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
  font-weight: 600;
  color: var(--text-color);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus {
  color: var(--primary-hover);
  text-decoration: underline;
}


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

pre,
code {
  font-family: var(--font-family-mono);
  font-size: 0.9em;
  background: rgba(0, 0, 0, 0.05);
  border-radius: var(--border-radius-sm);
}

code {
  padding: 0.2em 0.4em;
}

pre {
  padding: var(--spacing-md);
  overflow-x: auto;
}

pre code {
  padding: 0;
  background: none;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

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

/* ===== Header & Navigation ===== */
header {
  position: relative;
  top: 0;
  background-color: var(--card-color);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
}

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

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

img.logo {
  max-width: 145px;
  margin-top: 17px;
  height: auto;
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin-left: var(--spacing-lg);
}

.nav-links a {
  color: var(--text-color);
  font-weight: 500;
  text-decoration: none;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-color);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-color);
  margin: 5px 0;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-controls {
  display: flex;
  align-items: center;
}

/* Dunkelmodus-Schalter */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  margin-right: var(--spacing-md);
  color: var(--text-color);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  transition: opacity var(--transition-fast);
}

.sun-icon {
  display: none;
}

.moon-icon {
  display: block;
}

/* Sprachauswahl */
.language-selector select {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: var(--card-color);
  color: var(--text-color);
  font-size: 0.9rem;
  cursor: pointer;
}

/* ===== Hero-Bereich ===== */
.hero {
  padding: var(--spacing-xxl) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: white;
}

.hero p {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius-md);
  font-weight: 500;
  text-align: center;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  text-decoration: none;
}

.btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  text-decoration: none;
  color: white;
}

.btn-secondary {
  background-color: transparent;
  border: 2px solid white;
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* ===== Karten ===== */
.card {
  background-color: var(--card-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.card-img {
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
}

.card-img img {
  width: 100%;
  height: auto;
  transition: transform var(--transition-normal);
}

.card:hover .card-img img {
  transform: scale(1.05);
}

/* ===== Projekt-Grid ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.project-card {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.project-card .card-content {
  flex-grow: 1;
}

.project-card .btn {
  align-self: flex-start;
}

.project-links {
  margin-top: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
}

/* ===== Blog ===== */
.blog-post {
  margin-bottom: var(--spacing-xl);
}

.post-meta {
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
  font-size: 0.9rem;
}

.post-categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.category-tag {
  background-color: rgba(var(--primary-color-rgb), 0.1);
  color: var(--primary-color);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-size: 0.8rem;
  text-decoration: none;
}

.category-tag:hover {
  background-color: rgba(var(--primary-color-rgb), 0.2);
  text-decoration: none;
}

.pagination {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-xl);
}

.pagination a {
  padding: var(--spacing-sm) var(--spacing-md);
  margin: 0 var(--spacing-xs);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
}

.pagination a:hover {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  text-decoration: none;
}

/* ===== Über mich ===== */
.profile-section {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xxl);
}

.profile-image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.skills-section {
  margin-bottom: var(--spacing-xxl);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--spacing-md);
}

.skill-item {
  background-color: var(--card-color);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.skill-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

/* ===== Kontaktformular ===== */
.contact-form {
  background-color: var(--card-color);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: var(--background-color);
  color: var(--text-color);
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

/* ===== Footer ===== */
footer {
  background-color: var(--card-color);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-xxl);
  border-top: 1px solid var(--border-color);
}

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

.footer-section h3 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-md);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-links a {
  color: var(--text-color);
}

.social-links svg {
  width: 24px;
  height: 24px;
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.copyright {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding-top: var(--spacing-lg);
}

/* ===== Alert Boxes ===== */
.alert {
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  border-left: 4px solid transparent;
}

.alert-success {
  background-color: rgba(25, 135, 84, 0.1);
  border-left-color: #198754;
  color: #0f5132;
}

.alert-error {
  background-color: rgba(220, 53, 69, 0.1);
  border-left-color: #dc3545;
  color: #842029;
}

.alert-info {
  background-color: rgba(13, 110, 253, 0.1);
  border-left-color: #0d6efd;
  color: #084298;
}

/* ===== Media Queries für Responsive Design ===== */
/* Small devices (landscape phones) */
@media (max-width: 767px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    /* Ändern von fixed zu absolute */
    top: 100%;
    /* Positionierung direkt unter dem Header */
    left: 0;
    right: 0;
    background-color: var(--card-color);
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md) 0;
    transform: translateY(-100%);
    /* Versteckt das Menü oberhalb */
    transition: transform var(--transition-normal);
    z-index: 999;
    /* Höherer z-index */
  }

  .nav-links.active {
    transform: translateY(0);
  }

  /* Zusätzlicher Abstand für den Hauptinhalt wenn Menü aktiv ist */
  .nav-active main {
    margin-top: 200px;
    /* Anpassen je nach Höhe des Menüs */
    transition: margin-top var(--transition-normal);
  }

  .nav-links li {
    margin: var(--spacing-sm) 0;
  }

  .profile-section {
    grid-template-columns: 1fr;
  }

  .profile-image {
    max-width: 50%;
    margin: 0 auto;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  header {
    position: relative;
    /* Ändern von sticky zu relative */
    z-index: 1000;
  }

}

/* Medium devices (tablets) */
@media (min-width: 768px) and (max-width: 991px) {
  .profile-section {
    grid-template-columns: 1fr 1.5fr;
  }
}

/* For high-contrast media-query */
@media (prefers-contrast: high) {
  :root {
    --shadow-color: rgba(0, 0, 0, 0.3);
  }

  .card {
    border: 1px solid var(--text-color);
  }

  a:hover,
  a:focus {
    text-decoration: underline;
  }
}

/* For reduced motion preference */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    transition-duration: 0.01s !important;
    animation-duration: 0.01s !important;
    animation-iteration-count: 1 !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* Helper Classes */
.text-center {
  text-align: center;
}

.mb-1 {
  margin-bottom: var(--spacing-sm);
}

.mb-2 {
  margin-bottom: var(--spacing-md);
}

.mb-3 {
  margin-bottom: var(--spacing-lg);
}

.mb-4 {
  margin-bottom: var(--spacing-xl);
}

.mb-5 {
  margin-bottom: var(--spacing-xxl);
}

.mt-1 {
  margin-top: var(--spacing-sm);
}

.mt-2 {
  margin-top: var(--spacing-md);
}

.mt-3 {
  margin-top: var(--spacing-lg);
}

.mt-4 {
  margin-top: var(--spacing-xl);
}

.mt-5 {
  margin-top: var(--spacing-xxl);
}

.p-1 {
  padding: var(--spacing-sm);
}

.p-2 {
  padding: var(--spacing-md);
}

.p-3 {
  padding: var(--spacing-lg);
}

.p-4 {
  padding: var(--spacing-xl);
}

.p-5 {
  padding: var(--spacing-xxl);
}

.d-none {
  display: none;
}

.d-block {
  display: block;
}

.d-flex {
  display: flex;
}

.w-100 {
  width: 100%;
}

.w-50 {
  width: 50%;
}

.text-muted {
  color: var(--text-muted);
}

.text-primary {
  color: var(--primary-color);
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--spacing-lg);
}

/* Spaltenklassen für verschiedene Viewports */
.col-12 {
  grid-column: span 12;
}

.col-8 {
  grid-column: span 8;
}

.col-4 {
  grid-column: span 4;
}

@media (min-width: 992px) {
  .col-lg-8 {
    grid-column: span 8;
  }

  .col-lg-4 {
    grid-column: span 4;
  }

  /* Reihenfolge für Desktop */
  .order-lg-1 {
    order: 1;
  }

  .order-lg-2 {
    order: 2;
  }
}

/* Zusätzliche Klassen für Reihenfolge bei mobilem Layout */
.order-1 {
  order: 1;
}

.order-2 {
  order: 2;
}

/* Stellt sicher, dass Inhalte nicht abgeschnitten werden */
.blog-content {
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
  max-width: 100%;
  overflow: hidden;
}

/* Spezifische Anpassungen für den Blog-Post-Bereich */
.blog-post-detail .section .grid {
  position: relative;
}

/* CSS-Fix für das mobile Menü */
@media (max-width: 767px) {

  /* 1. Nav-Links Positionierung korrigieren */
  .nav-links {
    position: absolute;
    top: 100%;
    /* Direkt unter dem Header */
    left: 0;
    right: 0;
    background-color: var(--card-color);
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md) 0;
    /* Visibility statt Transform für zuverlässigeres Verhalten */
    transform: scaleY(0);
    transform-origin: top;
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
    z-index: 999;
  }

  /* 2. Aktiver Zustand des Menüs */
  .nav-links.active {
    transform: scaleY(1);
    opacity: 1;
    visibility: visible;
  }

  /* 3. Mehr Platz zwischen den Menüpunkten */
  .nav-links li {
    margin: var(--spacing-md) 0;
    width: 100%;
    text-align: center;
  }

  /* 4. Sicherstellen, dass der Header über anderen Elementen liegt */
  header {
    position: relative;
    z-index: 1000;
  }

  /* 5. Entfernen des Margin-Offsets für den Hauptinhalt, der nicht richtig funktionierte */
  .nav-active main {
    margin-top: 0;
    transition: none;
  }
}

    .post-languages {
      display: flex;
      align-items: center;
      margin-top: 15px;
      flex-wrap: wrap;
      gap: 10px;
    }
  
    .post-language-label {
      font-weight: 600;
      color: var(--text-muted);
      margin-right: 10px;
    }
  
    .language-buttons {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }
  
    .language-button {
      padding: 5px 10px;
      border-radius: var(--border-radius-sm);
      background-color: var(--card-color);
      border: 1px solid var(--border-color);
      font-size: 0.9em;
      text-decoration: none;
      color: var(--text-color);
      transition: all var(--transition-fast);
    }
  
    .language-button:hover {
      background-color: rgba(var(--primary-color-rgb), 0.1);
    }
  
    .language-button.active {
      background-color: var(--primary-color);
      color: white;
      border-color: var(--primary-color);
    }

.scroll-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-to-top:hover {
  background-color: var(--primary-color-dark, #2980b9);
}

.scroll-to-top svg {
  width: 20px;
  height: 20px;
}

/* Im Dark Mode ein bisschen anders stylen */
.dark-mode .scroll-to-top {
  background-color: var(--primary-color-dark, #2980b9);
}

.dark-mode .scroll-to-top:hover {
  background-color: var(--primary-color, #3498db);
}

th, tr, td {
  padding-right: 15px;
}

footer {
  background-color: var(--card-color);
  transition: background-color 0.3s;
  padding: 1rem 0;
  box-shadow: 0 2px 4px var(--shadow-color);
  width: 100%;
}


.copyright {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
}

.footer-links a:hover {
  color: var(--primary-color);
  text-decoration: underline;
}