/* ============================================
   DR. ARTUR KOKORNACZYK — DESIGN SYSTEM
   "Academic Modernist"
   ============================================ */

/* ---------- CUSTOM PROPERTIES ---------- */
:root {
  /* Backgrounds */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F7F7F5;
  --bg-tertiary: #EEEEE9;
  --bg-dark: #1A1A2E;

  /* Text */
  --text-primary: #1A1A2E;
  --text-secondary: #4A4A5A;
  --text-tertiary: #7A7A8A;
  --text-inverse: #FFFFFF;

  /* Accent Colors */
  --accent: #0D7377;
  --accent-hover: #0A5C5F;
  --accent-light: #E8F4F4;
  --amber: #C4841D;
  --amber-light: #FDF3E4;
  --amber-hover: #A66F18;

  /* Borders & Shadows */
  --border: #E2E2DE;
  --border-hover: #D0D0CC;
  --shadow-xs: 0 1px 2px rgba(26, 26, 46, 0.04);
  --shadow-sm: 0 1px 3px rgba(26, 26, 46, 0.06);
  --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08);
  --shadow-lg: 0 8px 32px rgba(26, 26, 46, 0.10);
  --shadow-hover: 0 12px 40px rgba(26, 26, 46, 0.14);

  /* Typography */
  --font-heading: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Sizes — fluid */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.775rem + 0.1875vw, 0.9375rem);
  --text-base: clamp(0.9375rem, 0.9rem + 0.1875vw, 1.0625rem);
  --text-lg: clamp(1.0625rem, 1rem + 0.3125vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.625rem);
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.75rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  --text-5xl: clamp(2.75rem, 2rem + 3.75vw, 4.5rem);

  /* Spacing */
  --space-xs: clamp(0.5rem, 0.45rem + 0.25vw, 0.75rem);
  --space-sm: clamp(0.75rem, 0.65rem + 0.5vw, 1rem);
  --space-md: clamp(1rem, 0.85rem + 0.75vw, 1.5rem);
  --space-lg: clamp(1.5rem, 1.2rem + 1.5vw, 2.5rem);
  --space-xl: clamp(2rem, 1.5rem + 2.5vw, 3.75rem);
  --space-2xl: clamp(3rem, 2.25rem + 3.75vw, 5.625rem);
  --space-3xl: clamp(4rem, 3rem + 5vw, 8rem);

  /* Widths */
  --width-content: 720px;
  --width-wide: 1100px;
  --width-full: 1320px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 0.15s;
  --duration-normal: 0.3s;
  --duration-slow: 0.6s;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) ease;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

/* ---------- UTILITY ---------- */
.section-inner {
  max-width: var(--width-full);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.6;
}

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

.inline-link {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent-light);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--duration-fast) ease;
}
.inline-link:hover {
  text-decoration-color: var(--accent);
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 0.8125rem 1.625rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  border: 1.5px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-inverse);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(13, 115, 119, 0.25);
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  transform: translateY(-2px);
}

/* ---------- TAGS ---------- */
.tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 0.25rem 0.625rem;
  border-radius: 4px;
  background: var(--amber-light);
  color: var(--amber);
  letter-spacing: 0.01em;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
}

.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-xs);
}

.header-inner {
  max-width: var(--width-full);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.header-nav {
  display: flex;
  gap: 0.375rem;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 450;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) ease;
  position: relative;
}
.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}
.nav-link.active {
  color: var(--accent);
  font-weight: 500;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}
.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all var(--duration-normal) var(--ease-out);
  transform-origin: center;
}
.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 55%;
  height: 100%;
  background: var(--bg-secondary);
  z-index: 0;
  clip-path: polygon(12% 0, 100% 0, 100% 100%, 0% 100%);
}

.hero-inner {
  max-width: var(--width-full);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: 700;
  line-height: 1.08;
  margin-bottom: var(--space-md);
  letter-spacing: -0.03em;
}

.title-accent {
  color: var(--accent);
  position: relative;
}

.hero-description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: var(--space-lg);
}

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

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-frame {
  position: relative;
  z-index: 2;
  width: clamp(300px, 28vw, 460px);
  height: clamp(300px, 28vw, 460px);
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

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

.hero-image-decoration {
  position: absolute;
  top: -12px;
  right: -12px;
  width: clamp(300px, 28vw, 460px);
  height: clamp(300px, 28vw, 460px);
  border-radius: 50%;
  border: 2px dashed var(--border);
  z-index: 1;
  animation: slow-rotate 60s linear infinite;
}

@keyframes slow-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-tertiary);
  font-size: var(--text-xs);
  letter-spacing: 0.05em;
}

.scroll-dot {
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { cy: 8; }
  50% { cy: 16; }
}

/* ============================================
   EXPERTISE CARDS
   ============================================ */
.expertise {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.expertise-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
}
.expertise-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-left-color: var(--amber);
}

.card-icon {
  width: 48px;
  height: 48px;
  color: var(--accent);
  margin-bottom: var(--space-md);
}
.card-icon svg {
  width: 100%;
  height: 100%;
}

.card-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.card-text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.card-stats {
  display: flex;
  gap: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}

.stat {
  display: flex;
  flex-direction: column;
}
.stat-number {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-top: 0.25rem;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}

.card-highlight {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--amber);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
}
.card-highlight svg {
  flex-shrink: 0;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
  padding: var(--space-3xl) 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image {
  border-radius: var(--radius-lg);
  object-fit: cover;
  width: 100%;
  aspect-ratio: 1;
  box-shadow: var(--shadow-md);
}

.about-image-accent {
  position: absolute;
  bottom: -16px;
  right: -16px;
  width: 60%;
  height: 60%;
  background: var(--accent-light);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.75;
}
.about-text p:last-child {
  margin-bottom: 0;
}

/* ============================================
   SPEAKING SECTION
   ============================================ */
.speaking-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-dark);
  color: var(--text-inverse);
  position: relative;
  overflow: hidden;
}

.speaking-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(13, 115, 119, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(196, 132, 29, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.speaking-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.speaking-section .section-label {
  color: var(--amber);
}

.speaking-section .section-title {
  color: var(--text-inverse);
}

.speaking-text {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.speaking-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.topic-pill {
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 100px;
  color: rgba(255, 255, 255, 0.8);
  transition: all var(--duration-normal) var(--ease-out);
}
.topic-pill:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--text-inverse);
}

.speaking-image-wrapper {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
}

.speaking-image {
  width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   TIMELINE
   ============================================ */
.timeline-section {
  padding: var(--space-3xl) 0;
  background: var(--bg-secondary);
}

.timeline {
  max-width: var(--width-content);
  margin: 0 auto;
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-xl);
}
.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -40px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--border);
  z-index: 1;
  transition: all var(--duration-normal) var(--ease-out);
}

.timeline-item:hover .timeline-marker,
.timeline-item--current .timeline-marker {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-light);
}

.timeline-date {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.timeline-place {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-bottom: 0.5rem;
}

.timeline-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================
   ARTICLES / FEATURED POSTS
   ============================================ */
.articles-section {
  padding: var(--space-3xl) 0;
}

.articles-grid {
  display: grid;
  gap: var(--space-md);
  max-width: var(--width-wide);
  margin: 0 auto;
}

.article-card {
  display: block;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-left: 3px solid transparent;
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
  overflow: hidden;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-left-color: var(--accent);
}

.article-card-inner {
  padding: var(--space-lg) var(--space-lg);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  margin-bottom: var(--space-sm);
}

.article-reading-time {
  color: var(--accent);
  font-weight: 500;
}

.article-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  transition: color var(--duration-fast) ease;
  line-height: 1.3;
}
.article-card:hover .article-title {
  color: var(--accent);
}

.article-excerpt {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.articles-cta {
  text-align: center;
  margin-top: var(--space-xl);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  padding: var(--space-2xl) 0 var(--space-lg);
  border-top: 1px solid var(--border);
  background: var(--bg-secondary);
}

.footer-inner {
  max-width: var(--width-full);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.footer-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: 0.25rem;
}

.footer-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer-link {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  transition: color var(--duration-fast) ease;
}
.footer-link:hover {
  color: var(--accent);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: all var(--duration-normal) var(--ease-out);
  border: 1px solid var(--border);
}
.social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-light);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-disclaimer {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-style: italic;
}

.footer-copyright {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

/* ============================================
   ANIMATIONS
   ============================================ */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
[data-animate="fade-in"] {
  transform: translateY(0) scale(0.97);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
[data-animate].visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
[data-animate][data-delay="1"] { transition-delay: 0.1s; }
[data-animate][data-delay="2"] { transition-delay: 0.2s; }
[data-animate][data-delay="3"] { transition-delay: 0.3s; }
[data-animate][data-delay="4"] { transition-delay: 0.4s; }

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-page {
  padding: calc(72px + var(--space-3xl)) 0 var(--space-3xl);
  min-height: 100vh;
}

.contact-inner {
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.contact-intro {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 560px;
}

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

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--duration-normal) var(--ease-out);
}
.contact-method:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.contact-method-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.contact-method-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.contact-method-value {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--accent);
}

/* ============================================
   BLOG LISTING
   ============================================ */
.blog-page {
  padding: calc(72px + var(--space-3xl)) 0 var(--space-3xl);
}

.blog-inner {
  max-width: var(--width-wide);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.blog-intro {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  max-width: 640px;
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-xl);
}

.tag-filter-btn {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--bg-primary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}
.tag-filter-btn:hover,
.tag-filter-btn.active {
  background: var(--accent);
  color: var(--text-inverse);
  border-color: var(--accent);
}

.blog-posts {
  display: grid;
  gap: var(--space-md);
}

/* ============================================
   BLOG POST (single)
   ============================================ */
.blog-post-page {
  padding: calc(72px + var(--space-2xl)) 0 var(--space-3xl);
}

.blog-post-inner {
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.blog-post-header {
  margin-bottom: var(--space-xl);
}

.blog-post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--space-sm);
}

.blog-post-title {
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}

.blog-post-excerpt {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  line-height: 1.6;
}

.blog-post-body {
  font-size: var(--text-base);
  line-height: 1.8;
  color: var(--text-secondary);
}
.blog-post-body h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}
.blog-post-body h3 {
  font-size: var(--text-xl);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}
.blog-post-body p {
  margin-bottom: var(--space-md);
}
.blog-post-body blockquote {
  border-left: 3px solid var(--accent);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
  font-style: italic;
  color: var(--text-primary);
}
.blog-post-body ul, .blog-post-body ol {
  margin-bottom: var(--space-md);
  padding-left: 1.5rem;
}
.blog-post-body li {
  margin-bottom: 0.5rem;
}

/* Author bio at post bottom */
.author-bio {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  margin-top: var(--space-2xl);
}

.author-bio-image {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.author-bio-name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-base);
}

.author-bio-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Share links */
.share-section {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.share-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-tertiary);
}

.share-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--duration-fast) ease;
}
.share-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-light);
}

/* ============================================
   LEGAL PAGES (Impressum, Datenschutz)
   ============================================ */
.legal-page {
  padding: calc(72px + var(--space-2xl)) 0 var(--space-3xl);
}

.legal-inner {
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.legal-inner h1 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-lg);
}

.legal-inner h2 {
  font-size: var(--text-xl);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.legal-inner p {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.75;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-xl);
  }
  .hero::before {
    display: none;
  }
  .hero-description {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-image-wrapper {
    order: -1;
  }
  .hero-image-frame {
    width: 280px;
    height: 280px;
  }
  .hero-image-decoration {
    width: 280px;
    height: 280px;
    top: -8px;
    right: calc(50% - 148px);
  }
  .hero-scroll-indicator {
    display: none;
  }

  .expertise-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .about-image-wrapper {
    max-width: 400px;
    margin: 0 auto;
  }

  .speaking-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .speaking-image-col {
    order: -1;
  }
}

@media (max-width: 768px) {
  .header-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--bg-primary);
    flex-direction: column;
    padding: 100px var(--space-lg) var(--space-lg);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.1);
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-out);
    z-index: 999;
    gap: 0;
  }
  .header-nav.open {
    transform: translateX(0);
  }
  .nav-link {
    font-size: var(--text-lg);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border);
  }
  .nav-link.active::after {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }

  .hero-title {
    font-size: var(--text-3xl);
  }
  .hero-image-frame {
    width: 220px;
    height: 220px;
  }
  .hero-image-decoration {
    width: 220px;
    height: 220px;
    right: calc(50% - 118px);
  }

  .footer-top {
    flex-direction: column;
    gap: var(--space-lg);
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    justify-content: center;
  }
}