:root {
    --color-primary: #2d3748;
    --color-accent: #2b6cb0;
    --color-text: #4a5568;
    --color-text-dark: #1a202c;
    --color-border: #a0aec0;
    --color-border-light: #e2e8f0;
    --color-bg: #ffffff;
    --color-bg-subtle: #f7fafc;
    --font-sans: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Source Serif 4', Georgia, serif;
    --max-width: 800px;
    --spacing: 1rem;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 2rem;
}

/* Selection styling */
::selection {
    background: var(--color-accent);
    color: var(--color-bg);
}

::-moz-selection {
    background: var(--color-accent);
    color: var(--color-bg);
}

body {
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-bg);
    padding: 0.5rem 1rem;
    z-index: 100;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* Header */
header {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: calc(var(--spacing) * 2) var(--spacing);
    padding-bottom: 0;
    width: 100%;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo-line {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.logo {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-dark);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.logo:hover {
    color: var(--color-accent);
}

.tagline {
    font-size: 1.35rem;
    font-weight: 300;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.linkedin-header {
    color: var(--color-text);
    transition: color var(--transition-normal), transform var(--transition-fast);
    display: flex;
    align-items: center;
}

.linkedin-header:hover {
    color: var(--color-accent);
    transform: translateY(-1px);
}

.linkedin-header svg {
    width: 24px;
    height: 24px;
    display: block;
}

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

/* Main content */
main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: calc(var(--spacing) * 2) var(--spacing);
    width: 100%;
    flex: 1;
}

h1 {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing);
}

h2 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-top: calc(var(--spacing) * 2);
    margin-bottom: var(--spacing);
}

p {
    margin-bottom: var(--spacing);
    color: var(--color-text);
}

.intro {
    font-size: 1rem;
    line-height: 1.8;
}

/* Page navigation */
.page-nav {
    margin-top: calc(var(--spacing) * 2);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.page-nav a {
    display: inline-block;
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    padding: 0.25rem 0;
    position: relative;
    transition: color var(--transition-normal);
}

.page-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-normal);
}

.page-nav a:hover::after {
    width: 100%;
}

.page-nav a[aria-current="page"] {
    color: var(--color-text-dark);
    font-weight: 700;
}

.page-nav a[aria-current="page"]::before {
    content: '→ ';
    color: var(--color-accent);
}

.page-nav a[aria-current="page"]::after {
    display: none;
}

/* Contact page specific */
.contact-intro {
    margin-bottom: calc(var(--spacing) * 1.5);
}

.contact-method {
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-method a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-normal);
    position: relative;
}

.contact-method a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width var(--transition-normal);
}

.contact-method a:hover::after {
    width: 100%;
}

.contact-method a:hover {
    color: var(--color-text-dark);
}

/* Consulting page - Profile list */
.profile-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: calc(var(--spacing) * 1.5);
}

.profile-list li {
    padding: 0.6rem 0;
    padding-left: 1.5rem;
    color: var(--color-text);
    position: relative;
}

.profile-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 1rem;
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
}

/* Experience items */
.experience-item {
    padding: calc(var(--spacing) * 1.25) 0;
    border-bottom: 1px solid var(--color-border-light);
    transition: background-color var(--transition-normal);
}

.experience-item:first-of-type {
    padding-top: 0;
}

.experience-item:last-of-type {
    border-bottom: none;
}

.experience-item p {
    margin-bottom: 0;
}

/* Skills table */
.skills-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing);
}

.skills-table tr {
    border-bottom: 1px solid var(--color-border-light);
}

.skills-table tr:last-child {
    border-bottom: none;
}

.skills-table td {
    padding: 0.75rem 0;
    vertical-align: top;
}

.skills-table td:first-child {
    width: 45%;
    color: var(--color-text-dark);
    font-weight: 600;
}

.skills-table td:last-child {
    color: var(--color-text);
}

/* Footer */
footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: calc(var(--spacing) * 2) var(--spacing);
    width: 100%;
    border-top: 1px solid var(--color-border-light);
    margin-top: calc(var(--spacing) * 2);
}

footer p {
    color: var(--color-text);
    font-size: 0.9rem;
    margin: 0;
}

/* Responsive */
@media (max-width: 600px) {
    .logo {
        font-size: 1.6rem;
    }

    .tagline {
        font-size: 1.1rem;
        flex-basis: 100%;
    }

    .logo-line {
        gap: 0.25rem;
    }

    .skills-table td:first-child {
        width: 50%;
    }
}

/* Print styles */
@media print {
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
        background: #fff;
    }

    header, footer, .page-nav {
        display: none;
    }

    main {
        max-width: 100%;
        padding: 0;
    }

    h1 {
        font-size: 18pt;
        margin-bottom: 12pt;
    }

    h2 {
        font-size: 14pt;
        margin-top: 18pt;
        margin-bottom: 8pt;
    }

    a {
        color: #000;
        text-decoration: none;
    }

    a[href]::after {
        content: " (" attr(href) ")";
        font-size: 10pt;
        color: #666;
    }

    .experience-item {
        page-break-inside: avoid;
    }

    .skills-table {
        page-break-inside: avoid;
    }
}