/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-lighter: #9ca3af;
    --color-bg: #ffffff;
    --color-bg-alt: #f9fafb;
    --color-border: #e5e7eb;
    --color-sidebar-bg: #1e293b;
    --color-sidebar-text: #f1f5f9;
    --color-sidebar-text-muted: #94a3b8;
    --color-sidebar-accent: #3b82f6;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 22px;
    --font-size-2xl: 28px;
    --font-size-3xl: 36px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

* {
    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-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
}

/* ============================================
   Layout
   ============================================ */
.cv-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
    max-width: 1000px;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
    background: var(--color-sidebar-bg);
    color: var(--color-sidebar-text);
    padding: var(--space-xl) var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.profile-section {
    text-align: center;
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.profile-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-sidebar-accent), #8b5cf6);
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
}

.name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: var(--space-xs);
}

.title {
    font-size: var(--font-size-sm);
    color: var(--color-sidebar-text-muted);
    font-weight: 400;
}

.sidebar h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-sidebar-text-muted);
    margin-bottom: var(--space-md);
}

.contact-info ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--color-sidebar-text);
    line-height: 1.5;
}

.contact-info .icon {
    font-size: var(--font-size-base);
    flex-shrink: 0;
    margin-top: 1px;
}

.contact-info a {
    color: var(--color-sidebar-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-info a:hover {
    color: #60a5fa;
}

/* Skills */
.skill-category {
    margin-bottom: var(--space-lg);
}

.skill-category:last-child {
    margin-bottom: 0;
}

.skill-category h4 {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-sidebar-text-muted);
    margin-bottom: var(--space-sm);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.skill-tags span {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-sidebar-accent);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Languages */
.languages-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.languages-section li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
}

.languages-section .level {
    font-size: var(--font-size-xs);
    color: var(--color-sidebar-text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    padding: var(--space-2xl) var(--space-xl);
}

.section {
    margin-bottom: var(--space-2xl);
}

.section:last-child {
    margin-bottom: 0;
}

.section h2 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

/* Objective */
.objective {
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Jobs */
.job {
    margin-bottom: var(--space-xl);
}

.job:last-child {
    margin-bottom: 0;
}

.job-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.job-header h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
}

.job-header .company {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: 500;
    margin-top: var(--space-xs);
}

.job-header .date {
    font-size: var(--font-size-sm);
    color: var(--color-text-lighter);
    background: var(--color-bg-alt);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    white-space: nowrap;
    font-weight: 500;
}

.job-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    padding-left: var(--space-md);
    border-left: 2px solid var(--color-primary-light);
}

.job-details li {
    position: relative;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.6;
    padding-left: var(--space-md);
}

.job-details li::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--color-primary);
    border-radius: 50%;
}

.tech-stack {
    font-size: var(--font-size-xs);
    color: var(--color-text-lighter);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tech-stack::before {
    content: 'Tech: ';
    font-weight: 500;
    color: var(--color-text-light);
}

/* Projects */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.project {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.project:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.project h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.project p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.project-tech {
    font-size: var(--font-size-xs);
    color: var(--color-text-lighter);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.project-link {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Education */
.education {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.edu-item h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

.edu-item .school {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.edu-item .edu-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-lighter);
}

/* Achievements */
.achievements {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.achievements li {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    line-height: 1.6;
    padding-left: var(--space-lg);
    position: relative;
}

.achievements li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

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

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .cv-container {
        display: block;
        max-width: none;
        box-shadow: none;
    }

    .sidebar {
        display: none;
    }

    .main-content {
        padding: 0;
    }

    .section {
        page-break-inside: avoid;
    }

    .job {
        page-break-inside: avoid;
    }
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .cv-container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        padding: var(--space-lg);
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--space-xl);
    }

    .profile-section {
        flex: 1;
        min-width: 200px;
        text-align: left;
        border-bottom: none;
        border-right: 1px solid rgba(255, 255, 255, 0.1);
        padding-right: var(--space-xl);
        padding-bottom: 0;
    }

    .profile-photo {
        margin: 0 0 var(--space-md);
    }

    .contact-info,
    .skills-section,
    .languages-section {
        flex: 1;
        min-width: 180px;
    }

    .main-content {
        padding: var(--space-xl) var(--space-lg);
    }

    .section h2 {
        font-size: var(--font-size-base);
    }

    .job-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .job-header .date {
        margin-top: var(--space-sm);
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .sidebar {
        flex-direction: column;
    }

    .profile-section {
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding-right: 0;
        padding-bottom: var(--space-lg);
    }

    :root {
        --space-xl: 24px;
        --space-2xl: 32px;
    }
}

/* ============================================
   Dark Mode Support (Optional)
   ============================================ */
@media (prefers-color-scheme: dark) {
    :root {
        --color-text: #f1f5f9;
        --color-text-light: #94a3b8;
        --color-text-lighter: #64748b;
        --color-bg: #0f172a;
        --color-bg-alt: #1e293b;
        --color-border: #334155;
        --color-primary-light: #1e3a5f;
    }

    .job-details {
        border-left-color: var(--color-primary-light);
    }

    .project {
        background: var(--color-bg-alt);
        border-color: var(--color-border);
    }

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