/*
Theme Name: Runderkopf Modern
Theme URI: https://runderkopf.de/
Author: Paul Dittmer
Author URI: https://runderkopf.de/
Description: Modernes, ultraschnelles Swiss-Editorial-Theme für runderkopf.de ohne Elementor-Ballast. 100/100 PageSpeed, Light/Dark-Mode responsiv, SEO-optimiert.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: runderkopf-modern
*/

:root {
  /* LIGHT MODE (DEFAULT) - Swiss Editorial Minimal */
  --bg-body: #fafafa;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-nav: rgba(255, 255, 255, 0.94);
  --border-light: #e2e8f0;
  --border-hover: #cbd5e1;

  --text-main: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent-blue: #0284c7;
  --accent-navy: #0f172a;

  --btn-primary-bg: #0f172a;
  --btn-primary-text: #ffffff;
  --btn-primary-hover: #1e293b;

  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 10px 24px -8px rgba(0, 0, 0, 0.04);
  --card-shadow-hover: 0 12px 32px -8px rgba(15, 23, 42, 0.1);

  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: all 0.2s ease-in-out;
}

[data-theme="dark"] {
  --bg-body: #0b0f19;
  --bg-card: #131b2e;
  --bg-subtle: #0f1626;
  --bg-nav: rgba(19, 27, 46, 0.94);
  --border-light: #1e293b;
  --border-hover: #334155;

  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-blue: #38bdf8;
  --accent-navy: #ffffff;

  --btn-primary-bg: #ffffff;
  --btn-primary-text: #0f172a;
  --btn-primary-hover: #f1f5f9;

  --card-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  --card-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.6);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  padding: 16px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.brand-logo {
  height: 32px;
  width: auto;
  object-fit: contain;
}
.brand-logo-svg {
  height: 32px;
  width: 32px;
  flex-shrink: 0;
  color: var(--text-main);
  transition: transform 0.25s ease;
}
.brand:hover .brand-logo-svg {
  transform: rotate(-10deg) scale(1.06);
}
.brand-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-main);
  letter-spacing: -0.03em;
}
.brand-dot {
  color: var(--accent-blue);
}

.nav-menu {
  display: flex;
  gap: 32px;
}
.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--text-main);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.btn-direct {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-main);
  padding: 8px 16px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  transition: var(--transition);
}
.btn-direct:hover {
  border-color: var(--text-main);
}

.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}
.theme-toggle-btn:hover {
  color: var(--text-main);
  border-color: var(--text-main);
}
[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }
[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-card);
}
.hero-container {
  max-width: 920px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-blue);
  background: var(--bg-subtle);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  border: 1px solid var(--border-light);
}
.tag-accent {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-blue);
}
.hero-headline {
  font-family: var(--font-heading);
  font-size: 3.6rem;
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-main);
  margin-bottom: 24px;
}
.hero-lead {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 800px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
}
.btn-dark {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  border: 1px solid var(--btn-primary-bg);
}
.btn-dark:hover {
  background-color: var(--btn-primary-hover);
  transform: translateY(-1px);
}
.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-hover);
}
.btn-outline:hover {
  background-color: var(--bg-subtle);
  border-color: var(--text-main);
}

/* Trust Strip */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 36px;
  border-top: 1px solid var(--border-light);
}
.trust-item {
  display: flex;
  flex-direction: column;
}
.trust-value {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}
.trust-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.trust-separator { display: none; }

/* Sections */
.section-padding {
  padding: 90px 0;
}
.bg-subtle {
  background-color: var(--bg-subtle);
}

.section-heading {
  margin-bottom: 50px;
}
.section-heading.text-center {
  text-align: center;
}
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-blue);
  margin-bottom: 12px;
}
.heading-title {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 14px;
}
.heading-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.6;
}
.section-heading.text-center .heading-subtitle {
  margin: 0 auto;
}

/* Pillars Cards */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.pillar-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.pillar-box-featured {
  border-color: var(--accent-blue);
  position: relative;
}
.pillar-box:hover {
  transform: translateY(-3px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border-hover);
}
.pillar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.pillar-index {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-muted);
}
.pillar-category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-blue);
}
.pillar-name {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}
.pillar-subname {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin-bottom: 12px;
}
.pillar-quote {
  font-size: 0.95rem;
  font-style: italic;
  color: var(--text-secondary);
  border-left: 2px solid var(--accent-blue);
  padding-left: 14px;
  margin: 14px 0 18px;
  line-height: 1.5;
}
.pillar-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}
.pillar-list {
  list-style: none;
  border-top: 1px solid var(--border-light);
  padding-top: 18px;
  margin-top: auto;
}
.pillar-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  padding: 6px 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.pillar-list li::before {
  content: "—";
  color: var(--accent-blue);
  font-weight: bold;
}

/* Branchenfokus Section (Clean Showcase) */
.industry-showcase-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 50px 40px;
  box-shadow: var(--card-shadow);
}
.industry-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.ind-card {
  display: flex;
  gap: 20px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  transition: var(--transition);
}
.ind-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.ind-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ind-content {
  display: flex;
  flex-direction: column;
}
.ind-title {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}
.ind-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}
.ind-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.ind-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

/* Testimonials / Social Proof */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 36px;
}
.testimonial-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.testimonial-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow-hover);
}
.testimonial-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.stars {
  color: #f59e0b;
  letter-spacing: 2px;
  font-size: 0.95rem;
}
.testimonial-context {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
}
.testimonial-quote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}
.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.author-name {
  display: block;
  font-size: 0.92rem;
  color: var(--text-main);
}
.author-meta {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* LinkedIn Banner */
.linkedin-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  gap: 24px;
}
.linkedin-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}
.linkedin-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.btn-linkedin {
  background-color: #0a66c2;
  color: #ffffff;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  transition: var(--transition);
}
.btn-linkedin:hover {
  background-color: #004182;
  transform: translateY(-1px);
}

/* Über mich: Editorial Magazin Layout */
.about-lead-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 50px;
  align-items: center;
  margin-bottom: 30px;
}
.about-portrait-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  background-color: var(--bg-card);
  box-shadow: var(--card-shadow);
}
.about-portrait-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
}
.portrait-caption {
  padding: 14px 18px;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
}
.portrait-caption strong {
  font-size: 1.05rem;
  color: var(--text-main);
}
.portrait-caption span {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.about-headline {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin-bottom: 18px;
}
.about-statement {
  font-size: 1.15rem;
  color: var(--text-main);
  line-height: 1.6;
  margin-bottom: 16px;
  font-weight: 500;
}
.about-summary {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

/* Prominenter Aufklapp-Button */
.about-action-row {
  display: flex;
  margin-top: 32px;
}
.btn-bio-toggle {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 26px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}
.bio-arrow-icon {
  transition: transform 0.3s ease;
}
.btn-bio-toggle[aria-expanded="true"] .bio-arrow-icon {
  transform: rotate(180deg);
}

/* Aufgeklappte Kapitel */
.collapsible-bio-container {
  margin-top: 40px;
  padding-top: 36px;
  border-top: 1px solid var(--border-light);
  animation: fadeInBio 0.35s ease-in-out;
}
@keyframes fadeInBio {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.story-chapters-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.bio-chapter-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--card-shadow);
}
.chapter-card-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-light);
}
.chapter-badge {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent-blue);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.chapter-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}
.chapter-body {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
}
.chapter-body p {
  margin-bottom: 16px;
}
.chapter-body p:last-child {
  margin-bottom: 0;
}
.chapter-body a {
  color: var(--accent-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.chapter-body a:hover {
  color: var(--text-main);
}
.chapter-quote-box {
  background-color: var(--bg-subtle);
  border-left: 3px solid var(--accent-blue);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  font-size: 1.05rem;
  color: var(--text-main);
  margin-bottom: 20px;
}
.quote-author {
  display: block;
  font-size: 0.85rem;
  font-style: normal;
  color: var(--text-muted);
  margin-top: 6px;
  font-weight: 600;
}
.styled-questions {
  list-style: none;
  background-color: var(--bg-subtle);
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  margin: 16px 0 20px;
}
.styled-questions li {
  padding: 6px 0;
  font-size: 0.95rem;
  color: var(--text-main);
}

/* Persönliches Side-Grid */
.personal-side-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 30px;
  align-items: center;
}
.personal-photo {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}
.personal-preferences {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  background-color: var(--bg-subtle);
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  margin-top: 14px;
  line-height: 1.6;
}

/* Zertifikate Grid */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.cert-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: var(--transition);
}
.cert-card:hover {
  border-color: var(--border-hover);
  background-color: var(--bg-card);
}
.cert-logo {
  height: 50px;
  max-width: 140px;
  object-fit: contain;
  margin-bottom: 14px;
}
.cert-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}
.cert-issuer {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Direkte Kontaktkarten */
.direct-contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.contact-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.contact-card:hover {
  transform: translateY(-3px);
  border-color: var(--text-main);
  box-shadow: var(--card-shadow-hover);
}
.contact-card-static:hover {
  transform: none;
  border-color: var(--border-light);
  box-shadow: var(--card-shadow);
}
.contact-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.contact-card-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-blue);
  margin-bottom: 8px;
}
.contact-card-val {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}
.contact-card-sub {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 20px;
}
.contact-card-cta {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-blue);
  margin-top: auto;
}
.contact-card-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 10px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  margin-top: auto;
}

/* Footer */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-light);
  background-color: var(--bg-card);
}
.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.footer-nav {
  display: flex;
  gap: 24px;
}
.footer-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer-nav a:hover {
  color: var(--text-main);
}
.footer-right {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .hero-headline { font-size: 2.8rem; }
  .pillars-grid, .testimonials-grid, .direct-contact-cards, .industry-cards, .certs-grid { grid-template-columns: 1fr; }
  .trust-strip { grid-template-columns: 1fr 1fr; gap: 24px; }
  .about-lead-grid { grid-template-columns: 1fr; gap: 40px; }
  .personal-side-grid { grid-template-columns: 1fr; }
  .linkedin-banner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 768px) {
  .nav-menu { display: none; }
  .hero-headline { font-size: 2.2rem; }
  .hero-lead { font-size: 1.1rem; }
  .industry-showcase-box, .bio-chapter-card { padding: 28px 20px; }
  .footer-grid { flex-direction: column; align-items: flex-start; gap: 16px; }
}