/* ==========================================================================
   Ioannis Ioannou - Personal Website
   A refined, modern design for an academic thought leader
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --color-primary: #1a365d;      /* Deep navy - authority, trust */
    --color-secondary: #2c5282;    /* Medium navy */
    --color-accent: #c53030;       /* Refined red - energy, passion */
    --color-accent-hover: #9b2c2c;
    
    --color-text: #1a202c;         /* Near black */
    --color-text-light: #4a5568;   /* Gray for secondary text */
    --color-text-muted: #718096;   /* Lighter gray */
    
    --color-bg: #ffffff;
    --color-bg-subtle: #f7fafc;    /* Very light gray */
    --color-bg-warm: #fffaf5;      /* Warm white */
    --color-bg-dark: #1a202c;      /* Dark sections */
    
    --color-border: #e2e8f0;
    --color-border-dark: #cbd5e0;
    
    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Font Sizes - Fluid Typography */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
    --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Layout */
    --container-max: 1280px;
    --container-narrow: 900px;
    
    /* Effects */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.2;
    color: var(--color-text);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p {
    margin-bottom: var(--space-md);
}

p:last-child {
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-2xl);
    }
}

/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: none;
    align-items: center;
    gap: var(--space-xl);
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
        position: fixed;
        top: 0;
        right: var(--space-2xl);
        height: 72px;
        z-index: 1001;
    }
}

.nav-menu a {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--color-primary);
}

.nav-cta {
    padding: var(--space-sm) var(--space-lg) !important;
    background: var(--color-primary);
    color: white !important;
    border-radius: var(--radius-sm);
}

.nav-cta:hover {
    background: var(--color-secondary);
    color: white !important;
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
}

@media (min-width: 1024px) {
    .nav-toggle {
        display: none;
    }
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

/* Mobile Navigation Menu */
@media (max-width: 1023px) {
    .nav-menu {
        display: flex;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: #ffffff;
        flex-direction: column;
        justify-content: flex-start;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 9999;
        overflow-y: auto;
    }
    
    .nav-menu.is-active {
        transform: translateX(0);
    }
    
    .nav-menu a {
        font-size: 1.25rem;
        padding: 0.5rem 0;
    }
    
    .nav-toggle.is-active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.is-active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.is-active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-border-dark);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--text-sm);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-subtle);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(72px + var(--space-3xl)) 0 var(--space-4xl);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--color-bg-subtle) 0%, var(--color-bg) 50%, var(--color-bg-warm) 100%);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(26, 54, 93, 0.03) 0%, transparent 70%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4xl);
    }
}

.hero-content {
    order: 2;
}

@media (min-width: 1024px) {
    .hero-content {
        order: 1;
    }
}

.hero-tagline {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.hero-title {
    font-size: var(--text-4xl);
    font-weight: 500;
    line-height: 1.1;
    color: var(--color-primary);
    margin-bottom: var(--space-xl);
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
    max-width: 540px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}

.hero-affiliations {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.hero-affiliations .separator {
    color: var(--color-border-dark);
}

.hero-image {
    order: 1;
    display: flex;
    justify-content: center;
}

@media (min-width: 1024px) {
    .hero-image {
        order: 2;
        justify-content: flex-end;
    }
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    max-width: 450px;
}

.hero-image-wrapper::before {
    content: '';
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    right: calc(var(--space-lg) * -1);
    bottom: calc(var(--space-lg) * -1);
    border: 2px solid var(--color-primary);
    opacity: 0.2;
    z-index: -1;
}

.hero-image-wrapper img {
    width: 100%;
    height: auto;
    object-fit: cover;
    box-shadow: var(--shadow-xl);
}

/* --------------------------------------------------------------------------
   Introduction Section
   -------------------------------------------------------------------------- */
.intro-section {
    padding: var(--space-4xl) 0;
    background: var(--color-bg);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
}

@media (min-width: 768px) {
    .intro-grid {
        grid-template-columns: 200px 1fr;
        gap: var(--space-4xl);
    }
}

.intro-label span {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
}

.intro-content h2 {
    font-size: var(--text-3xl);
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--space-xl);
    max-width: 700px;
}

.intro-content p {
    font-size: var(--text-lg);
    color: var(--color-text-light);
    max-width: 700px;
}

/* --------------------------------------------------------------------------
   Featured / Expertise Section
   -------------------------------------------------------------------------- */
.featured-section {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-subtle);
}

.section-header {
    margin-bottom: var(--space-3xl);
}

.section-header h2 {
    font-size: var(--text-3xl);
    color: var(--color-primary);
}

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

@media (min-width: 640px) {
    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .expertise-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.expertise-card {
    padding: var(--space-2xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.expertise-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.expertise-number {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 400;
    color: var(--color-border-dark);
    margin-bottom: var(--space-lg);
}

.expertise-card h3 {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.expertise-card p {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Latest Section (News & Events)
   -------------------------------------------------------------------------- */
.latest-section {
    padding: var(--space-4xl) 0;
    background: var(--color-bg);
}

.latest-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4xl);
}

@media (min-width: 768px) {
    .latest-grid {
        grid-template-columns: 1.2fr 1fr;
    }
}

.latest-header-full {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--color-primary);
}

.latest-header-full h2 {
    font-size: var(--text-3xl);
    color: var(--color-primary);
}

.latest-two-column {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
}

@media (min-width: 768px) {
    .latest-two-column {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4xl);
    }
}

.latest-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-md);
    border-bottom: 2px solid var(--color-primary);
}

.latest-header h2 {
    font-size: var(--text-2xl);
    color: var(--color-primary);
}

.view-all {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.view-all:hover {
    color: var(--color-accent-hover);
}

/* News Items */
.news-list {
    display: flex;
    flex-direction: column;
}

.news-item {
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.news-item:first-child {
    padding-top: 0;
}

.news-item a {
    display: block;
}

.news-item a:hover h3 {
    color: var(--color-accent);
}

.news-category {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.news-item h3 {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

/* Event Items */
.events-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.event-item {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-bg-subtle);
    border-left: 3px solid var(--color-accent);
}

.event-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 50px;
}

.event-month {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
}

.event-day {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 500;
    color: var(--color-primary);
}

.event-details h3 {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

.event-details p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Quote Section
   -------------------------------------------------------------------------- */
.quote-section {
    padding: var(--space-5xl) 0;
    background: var(--color-primary);
}

.featured-quote {
    max-width: var(--container-narrow);
    margin: 0 auto;
    text-align: center;
}

.featured-quote p {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 400;
    font-style: italic;
    line-height: 1.4;
    color: white;
    margin-bottom: var(--space-xl);
}

.featured-quote cite {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-style: normal;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.7);
}

/* --------------------------------------------------------------------------
   Research Highlight Section
   -------------------------------------------------------------------------- */
.research-highlight {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-warm);
}

/* --------------------------------------------------------------------------
   Featured Article Section
   -------------------------------------------------------------------------- */
.article-highlight {
    padding: var(--space-4xl) 0;
    background: var(--color-bg);
}

.research-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

@media (min-width: 768px) {
    .research-grid {
        grid-template-columns: 1.2fr 1fr;
    }
}

.section-label {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-lg);
}

.research-content h2 {
    font-size: var(--text-2xl);
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
}

.research-content p {
    font-size: var(--text-base);
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
}

.research-image img {
    width: 100%;
    box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
    background: var(--color-bg-dark);
    padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-logo {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: white;
    display: inline-block;
    margin-bottom: var(--space-md);
}

.footer-brand p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.footer-social a {
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.footer-social a:hover {
    color: white;
}

.footer-nav h4,
.footer-contact h4 {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: white;
    margin-bottom: var(--space-lg);
}

.footer-nav ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-nav a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
}

.footer-nav a:hover {
    color: white;
}

.footer-contact p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-xs);
}

.footer-link {
    font-size: var(--text-sm);
    color: white;
    display: inline-block;
    margin-bottom: var(--space-md);
}

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

.footer-bottom {
    padding-top: var(--space-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.4);
    text-align: center;
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.hero-image-wrapper {
    animation: fadeInUp 0.8s ease-out forwards;
}

.hero-image-wrapper {
    animation-delay: 0.2s;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   Advisory Section (Homepage)
   -------------------------------------------------------------------------- */
.advisory-section {
    padding: var(--space-4xl) 0;
    background: var(--color-bg-subtle);
}

.advisory-section .section-title {
    font-size: var(--text-3xl);
}

.advisory-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3xl);
}

@media (max-width: 768px) {
    .advisory-grid {
        grid-template-columns: 1fr;
    }
}

.advisory-column h3 {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-accent);
}

.advisory-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.advisory-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.advisory-role {
    font-weight: 600;
    color: var(--color-text);
    font-size: var(--text-base);
}

.advisory-org {
    color: var(--color-text-light);
    font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   Press Photos Grid (Media Page)
   -------------------------------------------------------------------------- */
.press-photos-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

@media (max-width: 1024px) {
    .press-photos-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .press-photos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .press-photos-grid {
        grid-template-columns: 1fr;
    }
}

.press-photo-item {
    display: block;
    text-decoration: none;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.press-photo-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.press-photo-item img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
}

.photo-caption {
    display: block;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-dark);
    color: white;
    font-size: var(--text-sm);
    text-align: center;
}

/* --------------------------------------------------------------------------
   Publication Award Badge
   -------------------------------------------------------------------------- */
.publication-award {
    display: inline-block;
    font-size: var(--text-sm);
    color: var(--color-accent);
    background: rgba(197, 48, 48, 0.1);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    margin-top: var(--space-sm);
}

/* --------------------------------------------------------------------------
   Executive Education Course Callout
   -------------------------------------------------------------------------- */
.course-callout {
    background: var(--color-primary);
    padding: var(--space-4xl) 0;
    color: white;
}

.course-callout-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.course-callout-content {
    padding-right: var(--space-xl);
}

.course-callout .section-label {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
    display: block;
}

.course-callout h2 {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    color: white;
}

.course-callout p {
    font-size: var(--text-lg);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-lg);
}

.course-stats {
    display: flex;
    gap: var(--space-2xl);
    margin-bottom: var(--space-xl);
}

.course-stat {
    text-align: left;
}

.course-stat-number {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: white;
    line-height: 1;
}

.course-stat-label {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--space-xs);
}

.course-callout .btn-light {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: white;
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.course-callout .btn-light:hover {
    background: var(--color-bg-subtle);
    transform: translateY(-2px);
}

.course-video-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.course-video-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 3px solid var(--color-accent);
    border-radius: var(--radius-lg);
    pointer-events: none;
    z-index: 1;
}

.course-video-embed {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    background: #000;
}

.course-video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.course-video-thumbnail {
    position: relative;
    cursor: pointer;
}

.course-video-thumbnail img {
    width: 100%;
    display: block;
}

.course-video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.course-video-thumbnail:hover .course-video-play {
    transform: translate(-50%, -50%) scale(1.1);
    background: var(--color-accent-hover);
}

.course-video-play svg {
    width: 32px;
    height: 32px;
    fill: white;
    margin-left: 4px; /* Visual centering for play triangle */
}

@media (max-width: 900px) {
    .course-callout-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .course-callout-content {
        padding-right: 0;
        text-align: center;
    }
    
    .course-stats {
        justify-content: center;
    }
    
    .course-stat {
        text-align: center;
    }
}

/* About page course section */
.course-section {
    background: var(--color-bg-subtle);
    padding: var(--space-4xl) 0;
    margin-top: var(--space-3xl);
}

.course-section-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-3xl);
    align-items: start;
}

.course-section-video {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.course-section-video::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-lg);
    pointer-events: none;
    z-index: 1;
}

.course-section-content h2 {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    margin-bottom: var(--space-lg);
}

.course-section-content p {
    margin-bottom: var(--space-md);
    color: var(--color-text-light);
}

.course-section-content .course-highlights {
    margin: var(--space-xl) 0;
}

.course-highlights li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    list-style: none;
}

.course-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

@media (max-width: 900px) {
    .course-section-grid {
        grid-template-columns: 1fr;
    }
}