/* 
 * Alexander Feick Personal Website
 * Design: Clean, architectural, deliberate
 * Color Palette: Slate gray, off-white, copper accent
 * Typography: Modern sans-serif (Inter, Source Sans Pro)
 */

/* CSS Variables */
:root {
    --color-primary: #94694d; /* Copper */
    --color-primary-dark: #7a5640;
    --color-secondary: #475569; /* Slate gray */
    --color-dark: #1e293b;
    --color-light: #f8fafc; /* Off-white */
    --color-text: #334155;
    --color-text-light: #64748b;
    --color-border: #e2e8f0;
    --color-bg-alt: #f1f5f9;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --transition-base: all 0.3s ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-light);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 3rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.25rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
}

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

a:hover {
    color: var(--color-primary-dark);
}

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.navbar {
    background-color: white;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-dark);
    letter-spacing: -0.01em;
    text-decoration: none;
}

.nav-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 2px solid var(--color-primary);
    object-fit: cover;
    transition: var(--transition-base);
}

.nav-brand:hover .nav-logo {
    border-color: var(--color-primary-dark);
    transform: scale(1.05);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 0.25rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-dark);
    border-radius: 3px;
    transition: var(--transition-base);
}

.nav-toggle:hover span {
    background-color: var(--color-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-text-light);
    font-size: 0.95rem;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background-color: rgba(148, 105, 77, 0.1);
}

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

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.hero-title {
    color: white;
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.hero-portrait {
    margin: 0 auto var(--spacing-md);
    max-width: 150px;
}

.hero-image {
    width: 100%;
    height: auto;
    aspect-ratio: 1/1;
    object-fit: cover;
    border-radius: 12px;
    border: 3px solid var(--color-primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.hero-quote {
    font-size: 2rem;
    font-style: italic;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 400;
    line-height: 1.4;
}

.hero-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    border-radius: 6px;
    transition: var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(148, 105, 77, 0.3);
}

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

.btn-secondary:hover {
    background-color: white;
    color: var(--color-primary);
}

/* Feature Section */
.featured-section {
    padding: var(--spacing-xl) 0;
    background-color: white;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--color-primary);
}

.feature-icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* Mission Section */
.mission-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-alt);
}

.mission-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.mission-portrait {
    position: relative;
}

.mission-image {
    width: 100%;
    height: auto;
    aspect-ratio: 1/1;
    object-fit: cover;
    border-radius: 12px;
    border: 3px solid var(--color-primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.mission-text-wrapper {
    text-align: left;
}

.mission-quote {
    font-size: 2rem;
    font-style: italic;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 400;
    position: relative;
}

.mission-quote::before {
    content: '"';
    font-size: 4rem;
    color: var(--color-primary);
    position: absolute;
    left: -2rem;
    top: -1rem;
    opacity: 0.3;
}

.mission-text {
    font-size: 1.125rem;
    color: var(--color-text);
    line-height: 1.8;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-secondary) 100%);
    color: white;
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.page-header h1 {
    color: white;
    margin-bottom: var(--spacing-xs);
}

.subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
}

/* Content Section */
.content-section {
    padding: var(--spacing-xl) 0;
    background-color: white;
}

.intro-text {
    margin-bottom: var(--spacing-lg);
}

/* Speaker intro section */
.speaker-intro {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--spacing-lg);
    align-items: start;
    margin-bottom: var(--spacing-lg);
}

.speaker-portrait {
    position: relative;
}

.speaker-image {
    width: 100%;
    height: auto;
    aspect-ratio: 1/1;
    object-fit: cover;
    border-radius: 12px;
    border: 3px solid var(--color-primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.speaker-intro .intro-text {
    margin-bottom: 0;
}

/* About Page */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    align-items: start;
}

.about-image .profile-image {
    width: 100%;
    height: auto;
    aspect-ratio: 1/1;
    object-fit: cover;
    border-radius: 12px;
    border: 3px solid var(--color-primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transition: var(--transition-base);
}

.about-image .profile-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

/* Fallback placeholder styling if image doesn't load */
.about-image .placeholder-image {
    aspect-ratio: 3/4;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-dark) 100%);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    padding: var(--spacing-md);
    text-align: center;
}

.about-content p {
    margin-bottom: var(--spacing-md);
}

.expertise-section {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--color-border);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.expertise-item {
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
}

.expertise-item h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.expertise-item p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* Book Page */
.book-showcase {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.book-cover-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transition: var(--transition-base);
}

.book-cover-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

/* Fallback for placeholder if needed */
.book-cover .placeholder-image {
    aspect-ratio: 2/3;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.book-details h2 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.book-meta {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
}

.book-meta p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.book-cta {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.book-release {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
    margin-top: var(--spacing-md);
}

.book-release h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.book-release .release-date {
    font-size: 1.125rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.book-release p:last-child {
    margin-bottom: 0;
    color: var(--color-text-light);
}

.book-highlights {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 2px solid var(--color-border);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.highlight-item {
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-radius: 8px;
}

.highlight-item h3 {
    font-size: 1.125rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.highlight-item p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* Speaking Page */
.topics-section {
    margin: var(--spacing-xl) 0;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.topic-card {
    padding: var(--spacing-md);
    background-color: white;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    transition: var(--transition-base);
}

.topic-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.topic-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.topic-card p {
    color: var(--color-text-light);
    margin-bottom: 0;
    font-size: 0.95rem;
}

.services-section {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    background-color: var(--color-bg-alt);
    border-radius: 8px;
}

.services-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.service-item {
    background-color: white;
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
}

.service-item h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.service-item p {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 0;
}

.cta-section {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-dark) 100%);
    border-radius: 8px;
    color: white;
}

.cta-section h2 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

/* Articles Page */
.articles-section {
    margin-bottom: var(--spacing-xl);
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.article-card {
    padding: var(--spacing-md);
    background-color: white;
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: 8px;
    transition: var(--transition-base);
}

.article-card.featured {
    background-color: var(--color-bg-alt);
    border-left-width: 6px;
}

.article-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateX(4px);
}

.article-meta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xs);
    align-items: center;
}

.article-type {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    background-color: rgba(148, 105, 77, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-date {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.article-publisher {
    font-size: 0.875rem;
    color: var(--color-primary);
    font-weight: 500;
}

.article-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.article-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.article-link {
    color: var(--color-primary);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}

.article-link:hover {
    color: var(--color-primary-dark);
}

.media-section {
    margin: var(--spacing-xl) 0;
}

.media-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.media-card {
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
}

.media-card.featured {
    background-color: white;
    border-left: 4px solid var(--color-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.media-type {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    background-color: rgba(148, 105, 77, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    margin-bottom: var(--spacing-sm);
}

.media-meta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.media-date {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.media-publisher {
    font-size: 0.875rem;
    color: var(--color-primary);
    font-weight: 500;
}

.media-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.media-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

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

.media-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background-color: var(--color-bg-alt);
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 6px;
    transition: var(--transition-base);
    border: 1px solid var(--color-border);
}

.media-link:hover {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(148, 105, 77, 0.2);
}

.media-link svg {
    flex-shrink: 0;
}

.newsletter-section {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-alt);
    border-radius: 8px;
}

.newsletter-section h2 {
    margin-bottom: var(--spacing-sm);
}

.newsletter-section p {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
}

.contact-info h2 {
    margin-bottom: var(--spacing-md);
}

.contact-methods {
    margin-top: var(--spacing-lg);
}

.contact-method {
    margin-bottom: var(--spacing-lg);
}

.contact-method h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.contact-method p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.contact-link {
    color: var(--color-primary);
    font-weight: 500;
}

.contact-link:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Contact Form */
.contact-form-container {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-md);
    border-radius: 8px;
}

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

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    font-size: 1rem;
    font-family: var(--font-sans);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    transition: var(--transition-base);
    background-color: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(148, 105, 77, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.form-status {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: 6px;
    display: none;
}

.form-status.success {
    display: block;
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.form-status.error {
    display: block;
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

/* Footer */
.footer {
    background-color: var(--color-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-md) 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer p {
    margin: 0;
    font-size: 0.95rem;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-base);
}

.social-link:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        gap: 0;
        padding: 0;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .nav-menu.active {
        max-height: 400px;
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-menu li {
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
        width: 100%;
    }
    
    .nav-link:hover,
    .nav-link.active {
        background-color: var(--color-bg-alt);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-portrait {
        max-width: 120px;
    }
    
    .hero-quote {
        font-size: 1.5rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .feature-grid,
    .expertise-grid,
    .highlights-grid,
    .topics-grid,
    .services-list,
    .media-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid,
    .book-showcase,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .speaker-intro {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .speaker-portrait {
        max-width: 200px;
        margin: 0 auto;
    }
    
    .mission-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .mission-portrait {
        max-width: 200px;
        margin: 0 auto;
    }
    
    .mission-text-wrapper {
        text-align: center;
    }
    
    .mission-quote::before {
        display: none;
    }
    
    .book-cta {
        flex-direction: column;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .nav-brand span {
        display: none;
    }
    
    .nav-logo {
        width: 36px;
        height: 36px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}