/* ==========================================================================
   Maximilian Leopold - Personal Website Styles
   ========================================================================== */

/* CSS Custom Properties (Design Tokens) */
:root {
    /* Colors - Dark Theme */
    --background: #0f172a;
    --background-secondary: #1e293b;
    --foreground: #f1f5f9;
    --foreground-muted: #94a3b8;
    --primary: #38bdf8;
    --primary-hover: #7dd3fc;
    --border: #334155;
    --card: #1e293b;
    
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Spacing */
    --section-padding: 6rem;
    --container-max: 1200px;
    --container-padding: 1.5rem;
    
    /* Border Radius */
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    
    /* Transitions */
    --transition: 150ms ease;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background-color: var(--background);
    color: var(--foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.min-h-screen {
    min-height: 100vh;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--section-padding) var(--container-padding);
}

.section-title {
    font-size: 1.875rem;
    font-weight: 600;
    margin: 0 0 3rem 0;
    letter-spacing: -0.025em;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--section-padding) var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
    }
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.hero-greeting {
    font-size: 1rem;
    color: var(--primary);
    font-weight: 500;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--foreground-muted);
    margin: 0;
    font-weight: 500;
}

.hero-description {
    font-size: 1rem;
    color: var(--foreground-muted);
    margin: 0;
    max-width: 500px;
    line-height: 1.7;
}

/* Hero Navigation */
.hero-nav {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .hero-nav {
        justify-content: center;
    }
}

.nav-link {
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--foreground-muted);
    transition: color var(--transition);
}

.nav-link:hover {
    color: var(--foreground);
}

.nav-link-line {
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width var(--transition);
}

.nav-link:hover .nav-link-line {
    width: 100%;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .social-links {
        justify-content: center;
    }
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    background-color: var(--background-secondary);
    border: 1px solid var(--border);
    color: var(--foreground-muted);
    transition: all var(--transition);
}

.social-link:hover {
    color: var(--primary);
    border-color: var(--primary);
}

/* Profile Image */
.hero-image {
    display: flex;
    justify-content: center;
}

.profile-image-wrapper {
    position: relative;
    width: 320px;
    height: 320px;
}

@media (max-width: 768px) {
    .profile-image-wrapper {
        width: 240px;
        height: 240px;
    }
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 2;
}

.profile-image-border {
    position: absolute;
    inset: -8px;
    border: 2px solid var(--primary);
    border-radius: var(--radius-lg);
    opacity: 0.3;
    z-index: 1;
}

/* ==========================================================================
   Services Section
   ========================================================================== */

.services-section {
    background-color: var(--background-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

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

.service-card {
    background-color: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: border-color var(--transition);
}

.service-card:hover {
    border-color: var(--primary);
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--background-secondary);
    border-radius: var(--radius);
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.service-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 0.75rem 0;
}

.service-description {
    font-size: 0.9375rem;
    color: var(--foreground-muted);
    margin: 0;
    line-height: 1.6;
}

/* ==========================================================================
   Skills Section
   ========================================================================== */

.skills-section {
    background-color: var(--background);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

@media (max-width: 768px) {
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.skill-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-group-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--foreground-muted);
    margin: 0;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    display: inline-flex;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    background-color: var(--background-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.skill-tag:hover {
    border-color: var(--primary);
}

.skill-tag--highlight {
    background-color: rgba(56, 189, 248, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact-section {
    background-color: var(--background-secondary);
}

.contact-content {
    max-width: 600px;
}

.contact-description {
    font-size: 1.125rem;
    color: var(--foreground-muted);
    margin: 0 0 2rem 0;
    line-height: 1.7;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 0.9375rem;
    font-weight: 500;
    background-color: var(--primary);
    color: var(--background);
    border-radius: var(--radius);
    transition: background-color var(--transition);
}

.contact-button:hover {
    background-color: var(--primary-hover);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.contact-icon {
    color: var(--primary);
    flex-shrink: 0;
}

.contact-link,
.contact-text {
    font-size: 0.9375rem;
    color: var(--foreground-muted);
    transition: color var(--transition);
}

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

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    border-top: 1px solid var(--border);
    background-color: var(--background);
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 2rem var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 640px) {
    .footer-container {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--foreground-muted);
    margin: 0;
}

.footer-nav {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    font-size: 0.875rem;
    color: var(--foreground-muted);
    transition: color var(--transition);
}

.footer-link:hover {
    color: var(--foreground);
}

/* ==========================================================================
   Legal Pages
   ========================================================================== */

.legal-main {
    min-height: 100vh;
    padding: 6rem var(--container-padding);
}

@media (max-width: 768px) {
    .legal-main {
        padding: 4.5rem var(--container-padding);
    }
}

.legal-container {
    max-width: 720px;
    margin: 0 auto;
}

.legal-back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--foreground-muted);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 3rem;
    transition: color var(--transition);
}

.legal-back-link:hover {
    color: var(--foreground);
}

.legal-back-icon {
    display: inline-flex;
    color: var(--primary);
}

.legal-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin: 0 0 3rem 0;
    letter-spacing: -0.02em;
}

.legal-content {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    color: var(--foreground-muted);
}

.legal-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.legal-heading {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    color: var(--foreground);
}

.legal-subheading {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
    color: var(--foreground);
}

.legal-text {
    margin: 0;
}

.legal-emphasis {
    color: var(--foreground);
}

.legal-list {
    margin: 0;
    padding-left: 1.25rem;
    display: grid;
    gap: 0.4rem;
}