/* Base styles and variables */ 
:root {
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --spacing-unit: 1rem;
    --container-width: 1000px;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
    box-sizing: border-box;
}

/* Header Styles */
.main-header {
    background: var(--light-gray);
    padding: 2rem 0 1rem;
    text-align: center;
}

.header-content {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 1rem var(--spacing-unit);
}

.header-content .logo {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    margin-bottom: 1rem;
}

.header-content h1 {
    font-size: 2rem;
    color: var(--primary-color);
    margin: 0;
}

/* Sections */
section {
    padding: 5rem 0;
}

section h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--primary-color);
    text-align: center;
}

/* Experience Grid */
.experience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.experience-item {
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.experience-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.experience-item h4 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

/* Contact Section */
.contact {
    background: var(--light-gray);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: center;
}

.contact-item a {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--primary-color);
}

/* Footer */
.footer {
    background: var(--light-gray);
    color: var(--text-color);
    padding: 2rem 0;
}

.footer-content {
    text-align: center;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
        cursor: pointer;
    }

    .menu-toggle span {
        display: block;
        width: 25px;
        height: 3px;
        background: var(--primary-color);
        margin: 5px 0;
        transition: 0.3s;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem 0;
        text-align: center;
    }

    .nav-links.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero .tagline {
        font-size: 1.2rem;
    }

    section h2 {
        font-size: 2rem;
    }
}

/* Content Grid Styles */
.content-grid {
    padding-top: 0;
    background: var(--light-gray);
}

.masonry-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 0.5rem 0;
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
}

.flex-row {
    display: flex;
    gap: 1rem;
    width: 100%;
    box-sizing: border-box;
}

.flex-1 {
    flex: 1;
    min-width: 0;
}

.flex-2 {
    flex: 2;
    min-width: 0;
}

/* Other cards */
.card {
    min-width: 0;
    max-width: 100%;
    margin: 0;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    height: auto;
    min-height: 200px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-sizing: border-box;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.15);
}

.span-1 {
    grid-column: span 1;
}

.span-2 {
    grid-column: span 2;
}

.content-card {
    padding: 2rem;
    display: flex;
    flex-direction: column;
}

.content-card h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    text-align: left;
}

.content-card p {
    flex-grow: 1;
    margin: 0;
}

.image-card {
    padding: 0;
    position: relative;
    height: calc((100vw - 6rem) / 3);  /* Make it equal to width for 1:1 ratio */
    max-height: calc(var(--container-width) / 3);
}

/* Adjust height for flex-2 cards (2/3 width) */
.flex-2.image-card {
    height: calc((100vw - 6rem) / 3);  /* Keep same height as other cards */
    max-height: calc(var(--container-width) / 3);
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .masonry-grid {
        justify-content: center;
    }

    .card {
        flex: 1 1 400px;
    }
}

@media (max-width: 768px) {
    .main-header {
        padding: 1rem 0;
    }

    .header-content .logo {
        font-size: 1.2rem;
    }

    .header-content h1 {
        font-size: 1.8rem;
    }

    .masonry-grid {
        grid-template-columns: 1fr;
    }
    
    .span-1, .span-2, .span-3 {
        grid-column: span 1;
    }

    .card {
        min-height: 150px;
    }

    .content-card {
        padding: 1.5rem;
    }

    .content-card h2 {
        font-size: 1.5rem;
        margin-bottom: 0.75rem;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .contact-item h3 {
        font-size: 1.1rem;
    }

    .contact-item a {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .header-content .logo {
        font-size: 1.1rem;
    }

    .header-content h1 {
        font-size: 1.6rem;
    }

    .content-card {
        padding: 1rem;
    }

    .content-card h2 {
        font-size: 1.3rem;
    }

    .content-card p {
        font-size: 0.95rem;
    }

    .card {
        min-width: 300px;
        flex: 1 1 300px;
    }
    
    .container {
        padding: 0 0.5rem;
    }
}

.span-3 {
    grid-column: span 3;
}

.contact-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-icon {
    width: 24px;
    height: 24px;
    margin-right: 0.5rem;
}

.contact-item h3 {
    margin: 0;
    font-size: 1.2rem;
}

.contact-item a {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--primary-color);
}

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

@media (max-width: 1000px) {
    .flex-row {
        flex-direction: column;
        gap: 1rem;
    }
    
    .flex-1, .flex-2 {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .image-card, .flex-2.image-card {
        height: calc(100vw - 4rem);
    }
}