/* ========================================
   DYNSELL LLC - Minimalist Corporate Site
   Inspired by Berkshire Hathaway's simplicity
   ======================================== */

/* CSS Custom Properties */
:root {
    --color-bg: #fafafa;
    --color-text: #1a1a1a;
    --color-text-secondary: #555;
    --color-link: #0066cc;
    --color-link-hover: #004499;
    --color-border: #ccc;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --max-width: 720px;
    --spacing-unit: 1rem;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 1.5);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 3);
    padding-bottom: calc(var(--spacing-unit) * 2);
    border-bottom: 1px solid var(--color-border);
}

.logo {
    max-width: 280px;
    width: 100%;
    height: auto;
    margin-bottom: calc(var(--spacing-unit) * 0.75);
    /* Invert for dark logo on light background if needed */
    filter: invert(1);
}

.tagline {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Content Sections */
.content {
    margin-bottom: calc(var(--spacing-unit) * 2.5);
}

.content h2 {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: calc(var(--spacing-unit) * 0.75);
}

/* Links List */
.links {
    list-style: none;
}

.links li {
    margin-bottom: calc(var(--spacing-unit) * 0.5);
    font-size: 1rem;
}

.links a {
    color: var(--color-link);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.link-description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* About Text */
.about-text {
    font-size: 0.95rem;
    color: var(--color-text);
    max-width: 600px;
}

/* Footer */
.footer {
    margin-top: calc(var(--spacing-unit) * 4);
}

.divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.copyright {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

/* Responsive */
@media (max-width: 480px) {
    html {
        font-size: 15px;
    }
    
    .container {
        padding: calc(var(--spacing-unit) * 2) var(--spacing-unit);
    }
    
    .logo {
        max-width: 220px;
    }
}

/* Subtle hover effect for links - professional touch */
.links a::after {
    content: ' →';
    opacity: 0;
    transition: opacity 0.2s ease;
}

.links a:hover::after {
    opacity: 1;
}

/* Selection styling */
::selection {
    background-color: var(--color-link);
    color: white;
}