/*
Theme Name: KI-Lupe
Theme URI: https://ki-lupe.de
Description: Custom Theme für KI-Lupe – Der AI-Tools Content-Hub für KMU, Freelancer und Selbständige.
Version: 1.0.2
Author: Manfred Bellmann / AgentZ
Author URI: https://agent-z.de
Text Domain: ki-lupe
Requires at least: 6.0
Requires PHP: 7.4
License: GPL v2 or later
*/

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

:root {
  /* Palette: deep navy + electric teal accent + warm neutrals */
  --color-primary: #0f2b46;
  --color-primary-light: #1a3d5c;
  --color-accent: #00c9a7;
  --color-accent-hover: #00e6bf;
  --color-accent-dark: #00a88a;
  --color-surface: #ffffff;
  --color-surface-alt: #f7f8fa;
  --color-surface-warm: #faf9f7;
  --color-text: #1a1a2e;
  --color-text-secondary: #5a6072;
  --color-text-muted: #8e92a4;
  --color-border: #e2e5ec;
  --color-border-light: #f0f1f4;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Typography */
  --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Source Sans 3', 'Source Sans Pro', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15,43,70,0.06), 0 1px 3px rgba(15,43,70,0.08);
  --shadow-md: 0 4px 6px rgba(15,43,70,0.05), 0 10px 20px rgba(15,43,70,0.08);
  --shadow-lg: 0 10px 25px rgba(15,43,70,0.08), 0 20px 48px rgba(15,43,70,0.1);

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 760px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent-dark); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-accent); }

/* ===== CONTAINER ===== */
.kl-container { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-lg); }
.kl-container--narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-lg); }

/* ===== HEADER ===== */
.site-header {
  background: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 3px solid var(--color-accent);
}

.site-header .kl-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: #fff;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-logo .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

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

/* Navigation */
.main-nav { display: flex; align-items: center; gap: var(--space-xl); }
.main-nav ul { display: flex; list-style: none; gap: var(--space-lg); }
.main-nav a {
  color: rgba(255,255,255,0.85);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.main-nav a:hover, .main-nav a.current {
  color: #fff;
  border-bottom-color: var(--color-accent);
}

.nav-search {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50px;
  padding: 0.4rem 1rem;
  color: #fff;
  font-size: 0.85rem;
  width: 180px;
  transition: all 0.3s;
  font-family: var(--font-body);
}
.nav-search::placeholder { color: rgba(255,255,255,0.5); }
.nav-search:focus { outline: none; width: 240px; background: rgba(255,255,255,0.18); border-color: var(--color-accent); }

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--space-sm);
}

/* ===== HERO ===== */
.kl-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 50%, #0d3a5c 100%);
  padding: var(--space-3xl) 0;
  position: relative;
  overflow: hidden;
}

.kl-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,201,167,0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.kl-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0,201,167,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.kl-hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.kl-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.03em;
}

.kl-hero h1 em {
  font-style: normal;
  color: var(--color-accent);
  position: relative;
}

.kl-hero p {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: rgba(255,255,255,0.8);
  margin-bottom: var(--space-xl);
  max-width: 560px;
  line-height: 1.7;
}

.kl-hero-actions { display: flex; gap: var(--space-md); flex-wrap: wrap; }

/* ===== BUTTONS ===== */
.kl-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
}

.kl-btn--primary {
  background: var(--color-accent);
  color: var(--color-primary);
}
.kl-btn--primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,201,167,0.3);
}

.kl-btn--outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
}
.kl-btn--outline:hover {
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}

.kl-btn--dark {
  background: var(--color-primary);
  color: #fff;
}
.kl-btn--dark:hover {
  background: var(--color-primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===== SECTIONS ===== */
.kl-section {
  padding: var(--space-3xl) 0;
}

.kl-section--alt { background: var(--color-surface-alt); }

.kl-section-header {
  margin-bottom: var(--space-2xl);
}

.kl-section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.kl-section-header p {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  max-width: 550px;
}

.kl-label {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-sm);
}

/* ===== FEATURE BOXES ===== */
.kl-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.kl-feature {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.kl-feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.kl-feature-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(0,201,167,0.1), rgba(0,201,167,0.05));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: var(--space-md);
}

.kl-feature h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.kl-feature p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== POST CARDS / ARTICLE GRID ===== */
.kl-posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.kl-post-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.kl-post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.kl-post-card__image {
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--color-surface-alt);
}

.kl-post-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.kl-post-card__body {
  padding: var(--space-lg);
}

.kl-post-card__cat {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-sm);
  display: inline-block;
}

.kl-post-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.kl-post-card__title a { color: inherit; }
.kl-post-card__title a:hover { color: var(--color-accent-dark); }

.kl-post-card__excerpt {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kl-post-card__meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* ===== CATEGORIES STRIP ===== */
.kl-categories {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.kl-cat-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text);
  transition: all 0.2s;
  text-decoration: none;
}

.kl-cat-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  background: rgba(0,201,167,0.05);
}

.kl-cat-chip .cat-count {
  background: var(--color-surface-alt);
  padding: 0.1rem 0.5rem;
  border-radius: 50px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ===== NEWSLETTER CTA ===== */
.kl-newsletter {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl) var(--space-2xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.kl-newsletter::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,201,167,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.kl-newsletter h2 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: var(--space-sm);
  position: relative;
}

.kl-newsletter p {
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  line-height: 1.6;
  position: relative;
}

.kl-newsletter-form {
  display: flex;
  gap: var(--space-sm);
  position: relative;
}

.kl-newsletter-form input[type="email"] {
  flex: 1;
  padding: 0.85rem 1.25rem;
  border-radius: 50px;
  border: 2px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 0.95rem;
  font-family: var(--font-body);
  transition: all 0.2s;
}

.kl-newsletter-form input[type="email"]::placeholder { color: rgba(255,255,255,0.5); }
.kl-newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255,255,255,0.15);
}

.kl-newsletter-form button {
  padding: 0.85rem 2rem;
  border-radius: 50px;
  background: var(--color-accent);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.25s;
}

.kl-newsletter-form button:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,201,167,0.3);
}

/* ===== SIDEBAR ===== */
.kl-layout-sidebar {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-2xl);
  align-items: start;
}

.kl-sidebar .widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.kl-sidebar .widget-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent);
}

/* ===== SINGLE POST ===== */
.kl-single-header {
  padding: var(--space-2xl) 0 var(--space-lg);
}

.kl-single-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}

.kl-single-meta {
  display: flex;
  gap: var(--space-lg);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.kl-single-content {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--color-text);
}

.kl-single-content h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: var(--space-2xl) 0 var(--space-md);
  letter-spacing: -0.02em;
}

.kl-single-content h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: var(--space-xl) 0 var(--space-md);
}

.kl-single-content p { margin-bottom: var(--space-lg); }

.kl-single-content ul, .kl-single-content ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-xl);
}

.kl-single-content li { margin-bottom: var(--space-sm); }

.kl-single-content blockquote {
  border-left: 4px solid var(--color-accent);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
  background: var(--color-surface-alt);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

.kl-single-content img {
  border-radius: var(--radius-md);
  margin: var(--space-xl) 0;
}

.kl-single-content a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.7);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.kl-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.kl-footer-about p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: var(--space-md);
}

.site-footer h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: var(--space-sm); }
.site-footer li a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: color 0.2s;
}
.site-footer li a:hover { color: var(--color-accent); }

.kl-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

/* ===== PAGINATION ===== */
.kl-pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-2xl);
}

.kl-pagination a, .kl-pagination span {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
}

.kl-pagination .current {
  background: var(--color-primary);
  color: #fff;
}

.kl-pagination a {
  background: var(--color-surface-alt);
  color: var(--color-text);
  text-decoration: none;
}

.kl-pagination a:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

/* ===== WOOCOMMERCE COMPAT ===== */
.woocommerce ul.products li.product,
.woocommerce-page ul.products li.product {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  transition: all 0.3s;
}

.woocommerce ul.products li.product:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.woocommerce ul.products li.product .price {
  color: var(--color-accent-dark) !important;
  font-family: var(--font-display);
  font-weight: 700;
}

.woocommerce a.button, .woocommerce button.button,
.woocommerce input.button, .woocommerce #respond input#submit {
  background-color: var(--color-accent) !important;
  color: var(--color-primary) !important;
  border-radius: 50px !important;
  font-family: var(--font-display) !important;
  font-weight: 700 !important;
  border: none !important;
  padding: 0.65rem 1.5rem !important;
  transition: all 0.25s !important;
}

.woocommerce a.button:hover, .woocommerce button.button:hover {
  background-color: var(--color-accent-hover) !important;
  transform: translateY(-2px);
}

/* ===== WIDGET AREAS (WP Widgets) ===== */
.widget_search .search-field {
  width: 100%;
  padding: 0.6rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
}

.widget_search .search-submit {
  margin-top: var(--space-sm);
}

/* ===== COMMENTS ===== */
.comments-area {
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.comment-list { list-style: none; }
.comment-body {
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
}

/* ===== 404 ===== */
.kl-404 {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.kl-404 h1 {
  font-family: var(--font-display);
  font-size: 5rem;
  font-weight: 800;
  color: var(--color-accent);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .kl-posts-grid { grid-template-columns: repeat(2, 1fr); }
  .kl-footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
  .kl-layout-sidebar { grid-template-columns: 1fr; }
  .kl-newsletter { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav ul { display: none; }
  .nav-search { display: none; }
  .menu-toggle { display: block; }
  
  .main-nav.is-open ul {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-primary);
    padding: var(--space-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
    z-index: 999;
  }

  .kl-hero { padding: var(--space-2xl) 0; }
  .kl-posts-grid { grid-template-columns: 1fr; }
  .kl-features { grid-template-columns: 1fr; }
  .kl-footer-grid { grid-template-columns: 1fr; }
  .kl-footer-bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }
  .kl-newsletter { padding: var(--space-xl); }
  .kl-newsletter-form { flex-direction: column; }
  .kl-section { padding: var(--space-2xl) 0; }
}

/* ===== SCROLL ANIMATIONS ===== */
.kl-animate {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.kl-animate.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== BREADCRUMBS ===== */
.kl-breadcrumbs {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: var(--space-md) 0;
}

.kl-breadcrumbs a { color: var(--color-text-secondary); }
.kl-breadcrumbs a:hover { color: var(--color-accent-dark); }
.kl-breadcrumbs span.sep { margin: 0 var(--space-sm); }

/* ===== WP ADMIN BAR FIX ===== */
body.admin-bar .site-header { top: 32px; }
@media (max-width: 782px) { body.admin-bar .site-header { top: 46px; } }