/* ============================================
   GLOBAL STYLES & RESET
   ============================================ */

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

:root {
    /* Color palette - muted and professional */
    --primary-color: #2563eb;        /* Muted blue for accents */
    --text-primary: #1a1a1a;         /* Near black */
    --text-secondary: #4a5568;       /* Gray for secondary text */
    --text-light: #718096;           /* Light gray */
    --background: #ffffff;           /* White background */
    --divider-color: #e2e8f0;        /* Light gray for dividers */
    --hover-background: #f7fafc;     /* Very light gray for hover */
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Container sizing - A4-like proportions */
    --container-max-width: 850px;
    --container-padding: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: #f5f5f5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   RESUME CONTAINER - Mimics A4 paper
   ============================================ */

.resume-container {
    max-width: var(--container-max-width);
    margin: 2rem auto;
    padding: var(--container-padding);
    background-color: var(--background);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    border-radius: 4px;
    
    /* Print-friendly */
    position: relative;
}

/* ============================================
   HEADER SECTION
   ============================================ */

.header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.name {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.title {
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md) var(--spacing-xl);
    font-size: 0.875rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
}

.contact-item .icon {
    width: 16px;
    height: 16px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* ============================================
   SECTION DIVIDERS
   ============================================ */

.divider {
    height: 1px;
    background-color: var(--divider-color);
    margin: var(--spacing-xl) 0;
}

/* ============================================
   SECTION COMMON STYLES
   ============================================ */

.section {
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

/* ============================================
   SUMMARY SECTION
   ============================================ */

.summary-text {
    color: var(--text-secondary);
    line-height: 1.7;
    text-align: justify;
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */

.experience-item {
    margin-bottom: var(--spacing-xl);
}

.experience-item:last-child {
    margin-bottom: 0;
}

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

.job-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.company {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.date-location {
    text-align: right;
    flex-shrink: 0;
}

.date {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 0.125rem;
}

.location {
    font-size: 0.875rem;
    color: var(--text-light);
}

.responsibilities {
    list-style: none;
    padding-left: 0;
}

.responsibilities li {
    padding-left: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
}

.responsibilities li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 600;
}

.responsibilities li:last-child {
    margin-bottom: 0;
}

/* ============================================
   EDUCATION SECTION
   ============================================ */

.education-item {
    margin-bottom: var(--spacing-lg);
}

.education-item:last-child {
    margin-bottom: 0;
}

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

.degree {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.school {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.education-details {
    font-size: 0.875rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* ============================================
   SKILLS SECTION
   ============================================ */

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.skill-category {
    margin-bottom: var(--spacing-md);
}

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

.skill-category-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-tag {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background-color: var(--hover-background);
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-radius: 4px;
    border: 1px solid var(--divider-color);
    transition: all var(--transition-fast);
    cursor: default;
}

.skill-tag:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

/* ============================================
   PROJECTS SECTION
   ============================================ */

.project-item {
    margin-bottom: var(--spacing-lg);
}

.project-item:last-child {
    margin-bottom: 0;
}

.project-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.project-tech {
    font-size: 0.875rem;
    color: var(--text-light);
}

.project-tech strong {
    color: var(--text-secondary);
}

/* ============================================
   CERTIFICATIONS SECTION
   ============================================ */

.certification-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.certification-item {
    padding-left: 1.25rem;
    position: relative;
}

.certification-item::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1rem;
}

.certification-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.certification-issuer {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* ============================================
   ANIMATIONS
   ============================================ */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablets and smaller */
@media (max-width: 768px) {
    :root {
        --container-padding: 2.5rem;
        --font-size-base: 15px;
    }
    
    .resume-container {
        margin: 1rem;
        border-radius: 0;
    }
    
    .name {
        font-size: 2rem;
    }
    
    .contact-info {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .experience-header,
    .education-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .date-location {
        text-align: left;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* Mobile devices */
@media (max-width: 480px) {
    :root {
        --container-padding: 1.5rem;
        --spacing-xl: 1.5rem;
    }
    
    .resume-container {
        margin: 0.5rem;
    }
    
    .name {
        font-size: 1.75rem;
    }
    
    .title {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.125rem;
    }
}

/* ============================================
   PRINT STYLES - For PDF export
   ============================================ */

@media print {
    body {
        background-color: white;
    }
    
    .resume-container {
        max-width: 100%;
        margin: 0;
        padding: 1.5cm;
        box-shadow: none;
        border-radius: 0;
    }
    
    .divider {
        page-break-inside: avoid;
    }
    
    .section {
        page-break-inside: avoid;
    }
    
    .experience-item,
    .education-item,
    .project-item {
        page-break-inside: avoid;
    }
    
    a {
        color: var(--text-secondary);
        text-decoration: none;
    }
    
    .skill-tag {
        border: 1px solid var(--divider-color);
    }
    
    /* Remove animations for print */
    .fade-in {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

/* Focus styles for keyboard navigation */
a:focus,
.skill-tag:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Ensure sufficient color contrast */
@media (prefers-contrast: high) {
    :root {
        --text-secondary: #2d3748;
        --text-light: #4a5568;
    }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .fade-in {
        opacity: 1;
        transform: none;
    }
}