:root {
    /* North Highland Brand Colors */
    --nh-dark-blue: #132e53;
    --nh-light-blue: #039fb8;
    --nh-white: #ffffff;
    --nh-gray: #525252;
    --nh-yellow: #dee22a;
    
    /* Application Color Mappings */
    --primary-color: var(--nh-dark-blue);
    --secondary-color: var(--nh-light-blue);
    --accent-color: var(--nh-light-blue);
    --neutral-dark: var(--nh-dark-blue);
    --neutral-gray: var(--nh-gray);
    --neutral-light: var(--nh-white);
    --background-light: #f8fafa;
    --success-color: var(--nh-light-blue);
    --warning-color: var(--nh-yellow);
    --text-primary: var(--nh-dark-blue);
    --text-secondary: var(--nh-gray);
    --border-color: #e0e0e0;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(19, 46, 83, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(19, 46, 83, 0.12);
    --shadow-lg: 0 10px 15px -3px rgba(19, 46, 83, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-light);
}

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

/* Header */
.site-header {
    background: var(--neutral-light);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.navbar-brand {
    display: flex;
    align-items: center;
}

.navbar-logo {
    height: 40px;
    width: auto;
}

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

.navbar-nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-icon {
    display: inline-block;
    vertical-align: middle;
}

.navbar-nav a:hover {
    color: var(--secondary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--nh-dark-blue) 0%, var(--nh-light-blue) 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
    min-height: 450px;
    display: flex;
    align-items: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path d="M0 0L50 50L0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    opacity: 0.3;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    font-weight: 800;
    letter-spacing: -0.025em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.75;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    letter-spacing: 0.025em;
    box-shadow: var(--shadow-sm);
}

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

.btn-primary:hover {
    background: #027a90;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
}

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

.btn-outline {
    background: transparent;
    color: var(--nh-dark-blue);
    border: 2px solid var(--nh-dark-blue);
}

.btn-outline:hover {
    background: var(--nh-dark-blue);
    color: white;
}

/* Event Cards */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(525px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    padding: 0 var(--spacing-sm);
}

.event-card {
    background: var(--neutral-light);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    overflow: hidden;
}

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

.event-card-header {
    padding: var(--spacing-lg);
    background: var(--primary-color);
    color: white;
    position: relative;
}

.event-card-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--nh-light-blue);
}

.event-category {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.event-card h2, .event-card h3 {
    margin: var(--spacing-sm) 0;
}

.event-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    opacity: 0.9;
    margin-top: var(--spacing-sm);
}

.event-meta span {
    display: flex;
    align-items: center;
}

.event-time {
    display: flex;
    align-items: center;
}

.event-card-body {
    padding: var(--spacing-lg);
    background: var(--neutral-light);
}

.event-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

/* Speaker Styles */
.event-speakers {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.speakers-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.speakers-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.speaker-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.speaker-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.speaker-info {
    flex: 1;
}

.speaker-name-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.speaker-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.speaker-title {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.125rem;
}

.linkedin-link {
    display: inline-flex;
    align-items: center;
    color: #0077b5;
    transition: transform 0.2s;
}

.linkedin-link:hover {
    transform: scale(1.1);
}

.linkedin-icon {
    width: 16px;
    height: 16px;
}

.event-card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--background-light);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Featured Events */
.featured-events {
    padding: 4rem 0;
    background: var(--background-light);
}

.featured-events h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 3rem;
    font-weight: 800;
    letter-spacing: -0.025em;
}

/* Value Proposition */
.value-proposition {
    padding: 4rem 0;
    background: var(--neutral-light);
}

.value-proposition h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 3rem;
    font-weight: 800;
    letter-spacing: -0.025em;
}

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

.value-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--background-light);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease;
}

.value-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.value-item h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
    font-weight: 700;
}

.value-item p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Footer */
.site-footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 2rem;
    margin-top: 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3, .footer-section h4 {
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.footer-section h3 {
    font-size: 1.5rem;
    color: var(--nh-light-blue);
}

.footer-section p {
    opacity: 0.9;
    line-height: 1.7;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.footer-section a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* Filters */
.filters-section {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--neutral-light);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.filter-form {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.filter-select {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: white;
    font-size: 0.95rem;
    color: var(--text-primary);
    min-width: 150px;
    transition: border-color 0.2s;
}

.filter-select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.pagination a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.pagination a:hover {
    color: var(--secondary-color);
}

/* Page Header */
.page-header {
    background: var(--primary-color);
    color: white;
    padding: 3rem 0;
    margin-bottom: 3rem;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
}

.page-header p {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-warning {
    color: var(--warning-color);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .navbar-nav {
        flex-direction: row;
        gap: var(--spacing-sm);
        flex-wrap: wrap;
    }
    
    .events-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-form {
        flex-direction: column;
        width: 100%;
    }
    
    .filter-select {
        width: 100%;
    }
}
/* Calendar Styles */
.calendar-view {
    padding: var(--spacing-lg) 0;
}

.timeline-events {
    position: relative;
    padding-left: 120px;
}

.timeline-event {
    display: flex;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.timeline-date {
    position: absolute;
    left: -120px;
    width: 100px;
    text-align: center;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    padding: var(--spacing-sm);
}

.date-day {
    display: block;
    font-size: 2rem;
    font-weight: 700;
}

.date-month {
    display: block;
    font-size: 0.875rem;
    text-transform: uppercase;
}

.speakers-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.speaker-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xl);
    background: white;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    overflow: hidden;
}

.speaker-image-container {
    flex-shrink: 0;
    width: 200px;
    height: 250px;
    overflow: hidden;
}

.speaker-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.speaker-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.speaker-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.speaker-title {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin: 0;
}

.speaker-company {
    font-size: 1rem;
    color: var(--text-tertiary);
    margin: 0 0 var(--spacing-md) 0;
}

.speaker-bio {
    line-height: 1.6;
    color: var(--text-secondary);
    margin: var(--spacing-md) 0;
}

.speaker-social {
    display: flex;
    gap: var(--spacing-md);
    margin-top: auto;
}

.speaker-social a {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: var(--primary-color);
    transition: opacity 0.3s;
}

.speaker-social a:hover {
    opacity: 0.7;
}

.speaker-social svg {
    width: 24px;
    height: 24px;
}

/* Responsive design for speakers */
@media (max-width: 768px) {
    .speaker-card {
        flex-direction: column;
    }
    
    .speaker-image-container {
        width: 100%;
        height: 300px;
    }
    
    .speaker-content {
        padding: var(--spacing-md);
    }
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}