/*
Theme Name: AI News Daily Digest
Theme URI: https://github.com/nicolascukas
Author: Nicolas Cukas
Author URI: https://nicolascukas.com
Description: Minimalistisches WordPress Theme im Swiss Tech Style für automatisierte AI News. Dark Mode mit Electric Blue Akzenten, vollständig responsive, barrierefrei (WCAG 2.1 AA) und SEO-optimiert.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ai-news-digest
Tags: blog, news, dark, minimal, accessibility-ready, custom-colors, responsive-layout
*/

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
:root {
  /* Colors - Dark Mode */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b0;
  --accent: #00d4ff;
  --accent-hover: #00ffea;
  --border: #2a2a3a;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;

  /* Layout */
  --max-width: 900px;
  --header-height: 70px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   SKIP LINK (Accessibility)
   ============================================ */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--bg-primary);
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
  z-index: 1000;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 1rem;
  outline: 2px solid var(--accent-hover);
  outline-offset: 3px;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-base);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: var(--header-height);
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: color var(--transition-fast);
}

.site-logo:hover {
  color: var(--accent);
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.site-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  padding: var(--space-xs) 0;
}

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

/* ============================================
   MAIN CONTENT
   ============================================ */
.site-content {
  flex: 1;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

h1 {
  font-size: 1.75rem;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

h2 {
  font-size: 1.25rem;
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
}

p {
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
  max-width: 90ch;
}

/* ============================================
   POST META
   ============================================ */
.post-meta {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.post-date {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================
   BOT CONTENT STYLING
   ============================================ */

/* Kategorie-Header (h2) */
.entry-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: var(--space-xl) 0 var(--space-md);
  color: var(--text-primary);
  position: relative;
}

.entry-content h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin-top: var(--space-xs);
  transition: width 0.4s ease;
}

.entry-content h2:hover::after {
  width: 120px;
}

/* News Cards (.wp-block-group) */
.entry-content .wp-block-group {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
  transition: border-color var(--transition-base),
              transform var(--transition-base),
              box-shadow var(--transition-base);
  animation: fadeInUp 0.5s ease-out forwards;
}

.entry-content .wp-block-group:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 212, 255, 0.15);
}

.entry-content .wp-block-group h3 {
  color: var(--text-primary);
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
}

.entry-content .wp-block-group p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Links mit Animation */
.entry-content a {
  color: var(--accent);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-fast);
}

.entry-content a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-base);
}

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

.entry-content a:hover::after {
  width: 100%;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Stagger Animation für Cards */
.entry-content .wp-block-group:nth-child(1) { animation-delay: 0.05s; }
.entry-content .wp-block-group:nth-child(2) { animation-delay: 0.1s; }
.entry-content .wp-block-group:nth-child(3) { animation-delay: 0.15s; }
.entry-content .wp-block-group:nth-child(4) { animation-delay: 0.2s; }
.entry-content .wp-block-group:nth-child(5) { animation-delay: 0.25s; }

/* ============================================
   PAGINATION
   ============================================ */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.pagination a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.pagination a:hover {
  background: var(--accent);
  color: var(--bg-primary);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  margin-top: auto;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
}

.site-footer p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-xs);
  max-width: 100%;
}

.site-footer .credits {
  color: var(--text-secondary);
  opacity: 0.7;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* ============================================
   ACCESSIBILITY - FOCUS STATES
   ============================================ */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

a:focus-visible {
  text-decoration: underline;
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================
   RESPONSIVE - MOBILE
   ============================================ */
@media (max-width: 767px) {
  :root {
    --header-height: 60px;
  }

  h1 {
    font-size: 1.5rem;
  }

  h2 {
    font-size: 1.125rem;
  }

  .site-content {
    padding: var(--space-lg) var(--space-sm);
  }

  .header-inner {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .site-nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
  }

  .site-nav a,
  .pagination a {
    padding: 0.75rem 1rem;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .entry-content .wp-block-group {
    padding: var(--space-sm);
  }

  .entry-content h2 {
    font-size: 1.25rem;
    margin: var(--space-lg) 0 var(--space-sm);
  }

  .pagination {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

/* ============================================
   RESPONSIVE - TABLET
   ============================================ */
@media (min-width: 768px) and (max-width: 1023px) {
  .site-content {
    max-width: 720px;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.375rem;
  }
}

/* ============================================
   RESPONSIVE - DESKTOP
   ============================================ */
@media (min-width: 1024px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .entry-content h2 {
    font-size: 1.75rem;
  }

  .entry-content .wp-block-group {
    padding: var(--space-lg);
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  .site-header,
  .site-nav,
  .pagination,
  .site-footer {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .entry-content a {
    color: black;
    text-decoration: underline;
  }
}