/* Portfolio Styles - Inspired by astro-theme-cactus / jrosseruk.github.io */

:root {
    --color-bg: #ffffff;
    --color-bg-alt: #fafafa;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-text-muted: #999999;
    --color-border: #e5e5e5;
    --color-accent: #0066cc;
    --color-accent-hover: #0052a3;
    
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    --sidebar-width: 280px;
    --max-content-width: 800px;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --color-bg: #1a1a1a;
    --color-bg-alt: #2a2a2a;
    --color-text: #e5e5e5;
    --color-text-light: #b0b0b0;
    --color-text-muted: #808080;
    --color-border: #3a3a3a;
    --color-accent: #4a9eff;
    --color-accent-hover: #6bb0ff;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Touch-friendly tap targets */
a, button {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
    touch-action: manipulation;
}

.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-bg);
    border-right: 1px solid var(--color-border);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

.sidebar-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Theme Toggle */
.theme-toggle-container {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.theme-toggle {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--color-text);
    padding: 0;
}

.theme-toggle:hover {
    background: var(--color-border);
    transform: scale(1.05);
}

.theme-icon {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.theme-icon.moon-icon {
    display: none;
}

[data-theme="dark"] .theme-icon.sun-icon {
    display: none;
}

[data-theme="dark"] .theme-icon.moon-icon {
    display: block;
}

.profile {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.profile-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: var(--spacing-md);
    border: 3px solid var(--color-border);
}

.profile-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.profile-title {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.profile-bio {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Navigation */
.nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.nav-link {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 0.95rem;
    padding: var(--spacing-xs) 0;
    transition: color 0.2s ease;
    position: relative;
}

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

.nav-link::before {
    content: '';
    position: absolute;
    left: -1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background: var(--color-accent);
    transition: height 0.2s ease;
}

.nav-link:hover::before,
.nav-link.active::before {
    height: 60%;
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.social-link {
    color: var(--color-text-light);
    transition: color 0.2s ease, transform 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 6px;
    background: var(--color-bg-alt);
}

.social-link:hover {
    color: var(--color-text);
    background: var(--color-border);
    transform: translateY(-2px);
}

.sidebar-footer {
    margin-top: auto;
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding-top: var(--spacing-lg);
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: var(--spacing-xl);
    max-width: var(--max-content-width);
}

.section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.section:last-child {
    border-bottom: none;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.5px;
}

.content {
    color: var(--color-text-light);
}

.content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.content strong {
    color: var(--color-text);
    font-weight: 600;
}

.quote {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--color-accent);
}

/* Buttons */
.cta {
    margin-top: var(--spacing-lg);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--color-bg);
    color: var(--color-text);
    border: 2px solid var(--color-border);
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn:hover {
    border-color: var(--color-text);
    background: var(--color-text);
    color: var(--color-bg);
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: var(--color-bg);
}

/* Experience */
.experience-item {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.experience-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.experience-header {
    margin-bottom: var(--spacing-md);
}

.experience-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xs);
    gap: var(--spacing-sm);
}

.experience-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
    flex: 1;
}

.position-title {
    font-size: 0.95rem;
    color: var(--color-text-light);
    font-weight: 500;
    margin: 0;
    display: block;
}

.experience-date {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    background: var(--color-bg-alt);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
}

.project-list {
    list-style: none;
    padding-left: 0;
    margin-top: var(--spacing-md);
}

.project-list > li {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    position: relative;
}

.project-list > li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.project-list ul {
    margin-top: var(--spacing-xs);
    padding-left: var(--spacing-md);
    list-style: disc;
}

.project-list ul li {
    margin-bottom: var(--spacing-xs);
    padding-left: 0;
}

.project-list ul li::before {
    display: none;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.project-card {
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.project-card:hover {
    border-color: var(--color-text);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.project-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.project-link {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.project-card p {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.text-link {
    color: var(--color-accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.text-link:hover {
    border-bottom-color: var(--color-accent);
}

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.skill-item {
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.skill-item:hover {
    border-color: var(--color-text);
    transform: translateX(4px);
}

.skill-label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.skill-item strong {
    color: var(--color-text);
    font-weight: 600;
}

/* Contact */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.contact-item strong {
    display: block;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-item span,
.contact-item a {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

/* Responsive Design */

/* Tablet and below (1024px) */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 260px;
        --spacing-xl: 2rem;
    }
    
    .main-content {
        padding: var(--spacing-lg);
    }
    
    .section-title {
        font-size: 1.75rem;
    }
}

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) and (min-width: 769px) {
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }
    
    .skills-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

/* Mobile and Tablet (768px and below) */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }
    
    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
        min-height: auto;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-md);
        overflow-y: visible;
    }
    
    .sidebar-content {
        height: auto;
    }
    
    .profile {
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }
    
    .profile-img {
        width: 100px;
        height: 100px;
    }
    
    .profile-name {
        font-size: 1.3rem;
    }
    
    .profile-title {
        font-size: 0.9rem;
    }
    
    .profile-bio {
        font-size: 0.85rem;
    }
    
    .nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        justify-content: center;
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }
    
    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .nav-link::before {
        display: none;
    }
    
    .nav-link.active {
        background: var(--color-bg-alt);
        border-radius: 4px;
    }
    
    .social-links {
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }
    
    .sidebar-footer {
        margin-top: var(--spacing-md);
        padding-top: var(--spacing-md);
    }
    
    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
        width: 100%;
    }
    
    .section {
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
    
    .section-title {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-md);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .experience-header-row {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .experience-header h3 {
        font-size: 1.2rem;
        width: 100%;
    }
    
    .position-title {
        font-size: 0.9rem;
    }
    
    .experience-date {
        font-size: 0.85rem;
        align-self: flex-start;
    }
    
    .project-card {
        padding: var(--spacing-sm);
    }
    
    .project-card h3 {
        font-size: 1.1rem;
    }
    
    .skill-item {
        padding: var(--spacing-sm);
    }
    
    .contact-item {
        padding: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        text-align: center;
        padding: 0.875rem 1.5rem;
    }
    
    .quote {
        font-size: 1rem;
        padding-left: var(--spacing-sm);
    }
}

/* Medium Mobile (481px - 600px) */
@media (max-width: 600px) and (min-width: 481px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

/* Small Mobile (480px and below) */
@media (max-width: 480px) {
    :root {
        --spacing-xs: 0.4rem;
        --spacing-sm: 0.75rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
    }
    
    html {
        font-size: 15px;
    }
    
    .sidebar {
        padding: var(--spacing-sm);
    }
    
    .profile-img {
        width: 80px;
        height: 80px;
        margin-bottom: var(--spacing-sm);
    }
    
    .profile-name {
        font-size: 1.2rem;
    }
    
    .profile-title {
        font-size: 0.85rem;
    }
    
    .profile-bio {
        font-size: 0.8rem;
    }
    
    .nav {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-link {
        text-align: center;
        padding: var(--spacing-xs);
    }
    
    .social-link {
        width: 32px;
        height: 32px;
    }
    
    .main-content {
        padding: var(--spacing-sm);
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    .section {
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-md);
    }
    
    .content p {
        font-size: 0.9rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .experience-header h3 {
        font-size: 1.1rem;
    }
    
    .experience-date {
        font-size: 0.8rem;
        padding: 0.2rem 0.6rem;
    }
    
    .project-card h3 {
        font-size: 1rem;
    }
    
    .project-card p {
        font-size: 0.85rem;
    }
    
    .skill-label {
        font-size: 0.75rem;
    }
    
    .contact-item strong {
        font-size: 0.8rem;
    }
    
    .contact-item span,
    .contact-item a {
        font-size: 0.85rem;
    }
    
    .btn {
        font-size: 0.9rem;
        padding: 0.75rem 1.25rem;
    }
}

/* Large screens (1440px and above) */
@media (min-width: 1440px) {
    .main-content {
        max-width: 900px;
    }
    
    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
}

/* Print styles */
@media print {
    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 2px solid var(--color-border);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .social-links,
    .nav {
        display: none;
    }
    
    .section {
        page-break-inside: avoid;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-alt);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}