/* Custom properties for theme */
:root {
    --primary-color: #3b82f6; /* Modern blue */
    --primary-light: #eff6ff;
    --primary-dark: #1d4ed8;
    --accent-color: #06b6d4; /* Cyan accent */
    --bg-color: #f8fafc; /* Slate 50 */
    --card-bg: #ffffff;
    --text-color: #1e293b; /* Slate 800 */
    --text-muted: #64748b; /* Slate 500 */
    --border-color: #e2e8f0; /* Slate 200 */
    --sidebar-width: 320px;
    --border-radius: 12px;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
}

[data-theme="dark"] {
    --primary-color: #60a5fa;
    --primary-light: #1e293b;
    --primary-dark: #3b82f6;
    --accent-color: #22d3ee;
    --bg-color: #0f172a; /* Slate 900 */
    --card-bg: #1e293b; /* Slate 800 */
    --text-color: #f1f5f9; /* Slate 100 */
    --text-muted: #94a3b8; /* Slate 400 */
    --border-color: #334155; /* Slate 700 */
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.2), 0 2px 4px -2px rgb(0 0 0 / 0.2);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

/* Reset and general styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Header UI */
header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: 0.05em;
    color: var(--text-color);
}

.logo-dot {
    color: var(--primary-color);
}

.controls {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-color);
}

.btn .icon {
    font-size: 1rem;
}

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

/* Resume layout */
.resume-container {
    max-width: 1200px;
    margin: 2rem auto;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    overflow: hidden;
    min-height: 1000px;
}

/* Sidebar styling */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--primary-light);
    padding: 2.5rem 2rem;
    border-right: 1px solid var(--border-color);
    flex-shrink: 0;
}

.profile-section {
    text-align: center;
    margin-bottom: 2rem;
}

.avatar-container {
    width: 200px;
    height: 200px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--card-bg);
    box-shadow: var(--shadow);
}

.avatar {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.name {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.75rem;
    line-height: 1.2;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.name .surname {
    color: var(--primary-color);
}

.title-tag {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

.section {
    margin-bottom: 2rem;
}

.section-title {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.25rem;
    margin-bottom: 1rem;
}

.profile-text {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.cert-card {
    display: flex;
    justify-content: center;
}

.cert-badge-img {
    max-width: 180px;
    height: auto;
    object-fit: contain;
    border-radius: var(--border-radius);
    transition: transform 0.2s ease;
}

.cert-badge-img:hover {
    transform: scale(1.05);
}

.contact-list {
    list-style: none;
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.2rem;
    height: 1.2rem;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-icon-svg {
    /* Inherits width, height, and display from .contact-icon */
}

.social-svg-icon {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 3px;
}

[data-theme="dark"] .social-svg-icon {
    filter: invert(1);
}

.contact-detail {
    word-break: break-all;
}

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

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

/* Main content styling */
.main-content {
    flex-grow: 1;
    padding: 2.5rem 3rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.content-section {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.main-section-title {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.main-section-title .subtitle {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-muted);
}

/* Abilities / Radar section */
.abilities-section {
    background-color: var(--primary-light);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    align-items: center;
}

.radar-container {
    width: 100%;
    max-width: 400px;
    height: 250px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Timeline/Work Experience */
.timeline {
    position: relative;
    padding-left: 1.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.25rem;
    top: 0.5rem;
    bottom: 0.5rem;
    width: 2px;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

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

.timeline-marker {
    position: absolute;
    left: -1.5rem;
    top: 0.35rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--primary-color);
    border: 2px solid var(--card-bg);
    box-shadow: 0 0 0 2px var(--primary-light);
}

.timeline-content {
    background-color: var(--card-bg);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.25rem;
}

.role {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-color);
}

.role-dept {
    font-weight: 400;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.duration {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-color);
    background-color: var(--primary-light);
    padding: 0.15rem 0.6rem;
    border-radius: 20px;
    white-space: nowrap;
}

.company {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--accent-color);
    margin-bottom: 0.75rem;
    letter-spacing: 0.02em;
}

.job-description {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: justify;
}

/* Education */
.education-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.edu-card {
    display: flex;
    gap: 1.5rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
}

.edu-year {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--primary-color);
    white-space: nowrap;
    min-width: 100px;
}

.edu-degree {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 0.15rem;
}

.edu-school {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.edu-research {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 0.25rem;
    line-height: 1.4;
}

.edu-gpa {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-color);
    display: block;
}

/* Skills blocks */
.skills-block {
    margin-bottom: 1.25rem;
}

.skills-block:last-child {
    margin-bottom: 0;
}

.skills-block-title {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-color);
    margin-bottom: 0.75rem;
}

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

.tag {
    font-size: 0.8rem;
    font-weight: 500;
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    border: 1px solid transparent;
}

.tag-primary {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-color: rgba(59, 130, 246, 0.15);
}

.tag-secondary {
    background-color: var(--bg-color);
    color: var(--text-muted);
    border-color: var(--border-color);
}

/* Page break and printer optimization */
.page-break {
    display: none;
}

/* Responsive rules */
@media screen and (max-width: 768px) {
    header {
        padding: 1rem;
    }

    .header-container {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
        width: 100%;
    }

    .logo-text {
        font-size: 1.1rem;
        word-break: break-word;
    }

    .resume-container {
        flex-direction: column;
        margin: 0;
        border-radius: 0;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 2rem 1.25rem;
    }
    
    .main-content {
        width: 100%;
        padding: 2rem 1.25rem;
    }
    
    .timeline-header {
        flex-direction: column;
        gap: 0.35rem;
        align-items: flex-start;
    }

    .edu-card {
        flex-direction: column;
        gap: 0.5rem;
        padding: 1rem;
    }
}

/* Print Styling */
@media print {
    :root {
        --primary-color: #1e3a8a; /* High contrast dark blue */
        --accent-color: #0d9488;
        --bg-color: #ffffff;
        --card-bg: #ffffff;
        --text-color: #0f172a;
        --text-muted: #334155;
        --border-color: #cbd5e1;
        --sidebar-width: 260px;
    }

    html {
        font-size: 10pt !important;
    }

    body {
        background-color: #ffffff;
        color: #0f172a;
    }

    .profile-text, .job-description, .edu-school, .edu-gpa, .edu-research, .contact-list li {
        font-size: 0.9rem !important; /* 0.9 * 10pt = 9pt */
    }

    header, .no-print {
        display: none !important;
    }

    .resume-container {
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        margin: 0;
        padding: 0;
        box-shadow: none;
        width: 100% !important;
        max-width: 100%;
        border-radius: 0;
        background-color: #ffffff;
    }

    .sidebar {
        width: 28% !important;
        flex-shrink: 0 !important;
        padding: 0 1.5rem 0 0;
        background-color: #ffffff;
        border-right: 1px solid var(--border-color);
    }

    .section-title {
        letter-spacing: 0.01em !important;
    }

    .cert-badge-img {
        max-width: 140px !important;
    }

    .main-content {
        width: 72% !important;
        flex-grow: 1 !important;
        padding: 0 0 0 1.5rem;
    }

    .avatar-container {
        width: 140px;
        height: 140px;
        border: 2px solid var(--border-color);
    }

    .company {
        margin-bottom: 0.35rem;
    }

    .duration {
        background: transparent;
        color: var(--text-color);
        padding: 0;
        font-weight: bold;
    }

    .page-break {
        display: none !important;
    }

    .timeline-item {
        page-break-inside: avoid;
        margin-bottom: 1.5rem;
    }

    .edu-card {
        page-break-inside: avoid;
        background-color: #ffffff;
        padding: 0.5rem 0;
        border: none;
        border-bottom: 1px dashed var(--border-color);
        border-radius: 0;
    }
    
    .edu-year {
        min-width: 120px !important;
        flex-shrink: 0 !important;
    }

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

    .tag {
        background: transparent !important;
        border: 1px solid var(--border-color) !important;
        color: var(--text-color) !important;
        font-size: 7.5pt;
    }

    @page {
        margin: 1.2cm 1cm;
    }
    
    .print-page-break {
        page-break-before: always !important;
        break-before: page !important;
    }

    .print-br {
        display: block !important;
    }

    .section {
        margin-bottom: 1.25rem !important;
    }
    
    .profile-section {
        margin-bottom: 1.25rem !important;
    }
    
    .avatar-container {
        margin-bottom: 0.75rem !important;
    }
    
    .main-content {
        gap: 1.5rem !important;
    }
    
    .timeline-item {
        margin-bottom: 1.25rem !important;
    }

    .timeline {
        padding-left: 0 !important;
    }

    .timeline::before {
        display: none !important;
    }

    .timeline-marker {
        display: none !important;
    }

}

/* Sidebar adjustments for Education and Skills */
.sidebar .edu-card {
    flex-direction: column;
    gap: 0.35rem;
    padding: 0.75rem;
    background-color: var(--card-bg);
}

.sidebar .edu-year {
    min-width: auto;
    font-size: 0.85rem;
}

.sidebar .edu-degree {
    font-size: 0.9rem;
}

.sidebar .edu-school {
    font-size: 0.8rem;
}

.sidebar .tags-container {
    gap: 0.35rem;
}

.sidebar .tag {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
}