@font-face {
    font-family: 'OCR-A';
    src: url('fonts/ocr-a-regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
}

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

:root {
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --text-muted: #666666;
    --border-color: #eaeaea;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header & Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 72px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-family: 'OCR-A', 'SF Mono', Monaco, monospace;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-color);
    text-decoration: underline;
}

.nav-links a.social-icon {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.nav-links a.social-icon:hover {
    text-decoration: none;
}

/* Main Content */
main {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

/* Hero Section */
.hero {
    text-align: left;
    padding: 8rem 0 5rem;
    max-width: 700px;
}

.hero h1 {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 1.2rem;
    line-height: 1.25;
    color: var(--text-color);
    letter-spacing: -0.025em;
}

.hero .subtitle {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    font-size: 1.1rem;
    color: var(--text-muted);
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: -0.01em;
}

/* Portfolio Grid */
.portfolio {
    padding: 2rem 0 5rem;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.portfolio-card {
    position: relative;
    display: block;
    overflow: hidden;
    aspect-ratio: 2/1;
    text-decoration: none;
    border-radius: 16px;
}

.portfolio-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.portfolio-card .overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-card:hover .overlay {
    opacity: 1;
}

.portfolio-card:hover img {
    transform: scale(1.05);
}

.portfolio-card .company-name {
    font-family: 'OCR-A', 'SF Mono', Monaco, monospace;
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}


/* About Page */
.about-content {
    padding: 8rem 0;
    max-width: 650px;
}

.about-text p {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    font-weight: 400;
}

.about-text p.lead {
    color: var(--text-color);
    font-size: 1.15rem;
}

/* Mobile Responsive */
@media (max-width: 900px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    nav {
        padding: 1rem;
    }

    .nav-links {
        gap: 1.5rem;
    }

    .hero {
        padding: 5rem 0 3rem;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .hero .subtitle {
        font-size: 0.95rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .about-content {
        padding: 4rem 0;
    }

    .portfolio-card .overlay {
        opacity: 1;
        background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 50%);
    }

    .portfolio-card .company-name {
        position: absolute;
        bottom: 1rem;
    }
}