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

/* CSS Variables for consistent theming */
:root {
    --primary-bg: #ffffff;
    --secondary-bg: #f8f9fa;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --accent-color: #525252;
    --border-color: #e9ecef;
    --hover-bg: #f1f3f5;
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
    --max-width: 800px;
    --spacing-unit: 1rem;
    --border-radius: 0;
}

/* Typography */
html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: calc(var(--spacing-unit) * 4) calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 6);
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 5);
}

.site-title {
    font-family: 'Pixelify Sans', cursive;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    letter-spacing: -0.02em;
}

.site-description {
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto;
}

.site-description a {
    color: var(--text-secondary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.2s ease;
}

.site-description a:hover {
    color: var(--text-primary);
}

/* Portfolio Section */
.portfolio {
    margin-top: calc(var(--spacing-unit) * 4);
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
}

.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;
}

.portfolio-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 1.25);
}

.portfolio-item {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.portfolio-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-color);
}

.portfolio-link {
    display: flex;
    align-items: center;
    padding: calc(var(--spacing-unit) * 1.5);
    text-decoration: none;
    color: var(--text-primary);
    transition: background-color 0.2s ease;
}

.portfolio-link:hover {
    background-color: var(--hover-bg);
}

.portfolio-logo {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    margin-right: calc(var(--spacing-unit) * 1.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Temporary placeholder for logos */
.logo-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color), #707070);
    color: white;
    font-size: 1.75rem;
    font-weight: 600;
    border-radius: calc(var(--border-radius) / 2);
    font-family: 'Inter', sans-serif;
}

/* When actual logos are added, use this style */
.portfolio-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: calc(var(--border-radius) / 2);
}

.portfolio-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.portfolio-title {
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    margin: 0;
}

.portfolio-tagline {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 5);
    }

    .hero {
        margin-bottom: calc(var(--spacing-unit) * 3);
    }

    .site-title {
        font-size: 2.25rem;
    }

    .site-description {
        font-size: 1rem;
    }

    .portfolio-link {
        padding: calc(var(--spacing-unit) * 1.25);
    }

    .portfolio-logo {
        width: 50px;
        height: 50px;
        margin-right: var(--spacing-unit);
    }

    .portfolio-title {
        font-size: 1.125rem;
    }

    .portfolio-tagline {
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .site-title {
        font-size: 2rem;
    }

    .site-description {
        font-size: 0.95rem;
    }
}

/* Footer */
.footer {
    margin-top: calc(var(--spacing-unit) * 5);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

/* Print styles */
@media print {
    .container {
        max-width: 100%;
    }

    .portfolio-item {
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }
}