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

:root {
    /* Color System */
    --primary-navy: #1B365C;
    --primary-blue: #4A90D9;
    --accent-blue: #2E7BD4;
    --light-blue: #E8F4FD;
    --success-green: #22C55E;
    --warning-orange: #F59E0B;
    --error-red: #EF4444;
    
    /* Neutrals */
    --neutral-900: #0F172A;
    --neutral-800: #1E293B;
    --neutral-700: #334155;
    --neutral-600: #475569;
    --neutral-500: #64748B;
    --neutral-400: #94A3B8;
    --neutral-300: #CBD5E1;
    --neutral-200: #E2E8F0;
    --neutral-100: #F1F5F9;
    --neutral-50: #F8FAFC;
    --white: #FFFFFF;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    --spacing-24: 6rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-base: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-base: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--neutral-800);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-8);
    }
}

/* Header */
.header {
    background-color: var(--white);
    border-bottom: 1px solid var(--neutral-200);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    padding: var(--spacing-4) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

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

.logo-text {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: #000000;
    font-family: var(--font-family);
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav-link {
    font-weight: 500;
    color: var(--neutral-600);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-navy);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-blue);
    border-radius: var(--radius-full);
}

.nav-link.back-to-site {
    color: var(--primary-blue);
    font-weight: 600;
    border: 1px solid var(--primary-blue);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-base);
    transition: all var(--transition-fast);
}

.nav-link.back-to-site:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
@media (max-width: 768px) {
    .nav {
        display: none;
    }
}

/* Events Section */
.events {
    padding: var(--spacing-16) 0;
    background-color: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.section-description {
    font-size: var(--font-size-xl);
    color: var(--neutral-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-8);
    margin-top: var(--spacing-12);
}

@media (max-width: 768px) {
    .events-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
}

/* Event Card */
.event-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-base);
    transition: all var(--transition-base);
    position: relative;
    border: 1px solid var(--neutral-200);
}

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

.event-header {
    padding: var(--spacing-6);
    background: linear-gradient(135deg, var(--neutral-50) 0%, var(--white) 100%);
    border-bottom: 1px solid var(--neutral-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.event-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.event-logo-placeholder {
    width: 64px;
    height: 64px;
    background: var(--white);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--neutral-200);
}

.event-badge {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 100%);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.event-content {
    padding: var(--spacing-6);
}

.event-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-4);
    line-height: 1.3;
}

.event-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
}

.event-date,
.event-location {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--neutral-600);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.event-date svg,
.event-location svg {
    color: var(--primary-blue);
}

.event-description {
    color: var(--neutral-700);
    line-height: 1.6;
    margin-bottom: var(--spacing-5);
}

.event-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
}

.highlight-tag {
    background: var(--light-blue);
    color: var(--primary-navy);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.event-footer {
    padding: 0 var(--spacing-6) var(--spacing-6) var(--spacing-6);
}

.book-meeting-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 100%);
    color: var(--white);
    border: none;
    padding: var(--spacing-4) var(--spacing-6);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    position: relative;
    overflow: hidden;
    z-index: 2;
}

.book-meeting-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
    transition: left var(--transition-slow);
    z-index: 1;
    border-radius: inherit;
}

.book-meeting-btn:hover::before {
    left: 100%;
}

.book-meeting-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.book-meeting-btn:active {
    transform: translateY(0);
}

/* Calendly Section */
.calendly-section {
    padding: var(--spacing-16) 0;
    background: var(--neutral-50);
}

.calendly-content {
    max-width: 1000px;
    margin: 0 auto;
}

.calendly-header {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.calendly-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-navy);
    margin-bottom: var(--spacing-4);
    line-height: 1.2;
}

.calendly-description {
    font-size: var(--font-size-xl);
    color: var(--neutral-600);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

.calendly-inline-widget {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--neutral-200);
    background: var(--white);
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .calendly-title {
        font-size: var(--font-size-3xl);
    }
    
    .calendly-description {
        font-size: var(--font-size-lg);
    }
    
    .calendly-inline-widget {
        margin: 0 -1rem;
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #00bf93 0%, #00a67d 100%);
    color: var(--white);
    padding: var(--spacing-20) 0;
    text-align: center;
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"%3E%3Cdefs%3E%3Cpattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"%3E%3Ccircle cx="10" cy="10" r="2" fill="rgba(255,255,255,0.1)" /%3E%3C/pattern%3E%3C/defs%3E%3Crect width="100" height="100" fill="url(%23dots)" /%3E%3C/svg%3E') center/40px 40px;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
    line-height: 1.2;
}

.cta-description {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-8);
    line-height: 1.6;
}

.cta-button {
    background: var(--white);
    color: var(--primary-navy);
    border: none;
    padding: var(--spacing-5) var(--spacing-8);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-3);
    position: relative;
    overflow: hidden;
    z-index: 2;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(26, 54, 92, 0.1) 50%, transparent 100%);
    transition: left var(--transition-slow);
    z-index: 1;
    border-radius: inherit;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

@media (max-width: 768px) {
    .cta-title {
        font-size: var(--font-size-3xl);
    }
    
    .cta-description {
        font-size: var(--font-size-lg);
    }
    
    .cta-button {
        padding: var(--spacing-4) var(--spacing-6);
        font-size: var(--font-size-base);
    }
}

/* Footer */
.footer {
    background-color: var(--white);
    color: var(--neutral-600);
    padding: var(--spacing-8) 0;
    border-top: 1px solid var(--neutral-200);
    text-align: center;
}

.footer p {
    font-size: var(--font-size-sm);
    margin: 0;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-4);
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    position: relative;
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    width: 40px;
    height: 40px;
    background: var(--white);
    border: 1px solid var(--neutral-300);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
    box-shadow: var(--shadow-sm);
}

.modal-close:hover {
    background: var(--neutral-100);
    transform: rotate(90deg);
}

#calendly-embed {
    width: 100%;
    height: 700px;
    border: none;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .events-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}

@media (max-width: 640px) {
    .events-grid {
        grid-template-columns: 1fr;
    }
    
    .event-highlights {
        justify-content: center;
    }
    
    .modal-content {
        margin: var(--spacing-4);
        max-height: calc(100vh - 2rem);
    }
    
    #calendly-embed {
        height: 600px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for accessibility */
button:focus,
a:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Loading state for Calendly */
.calendly-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
    color: var(--neutral-600);
    font-size: var(--font-size-lg);
}

.calendly-loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 2px solid var(--neutral-300);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    margin-left: var(--spacing-3);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}