/* ===========================
   CSS Variables & Reset
   =========================== */
:root {
    /* Corporate Color Palette */
    --primary-color: #1e3a8a;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #64748b;
    --accent-color: #0ea5e9;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Layout */
    --max-width: 1200px;
    --border-radius: 12px;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --box-shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --box-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--gray-700);
    background-color: #f0f4f8;
}

/* ===========================
   Typography
   =========================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-light);
}

/* ===========================
   Layout & Container
   =========================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--gray-900);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: var(--box-shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-menu .nav-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-left: var(--spacing-md);
}

/* ===========================
   Language & PDF Buttons
   =========================== */
.lang-btn, .pdf-btn {
    background: var(--white);
    border: 1.5px solid var(--gray-300);
    border-radius: 8px;
    padding: 8px 14px;
    cursor: pointer;
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--gray-700);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.lang-btn:hover, .pdf-btn:hover {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(30, 58, 138, 0.15);
}

.lang-btn:active, .pdf-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.pdf-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}


.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
}

.nav-brand {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
}

.nav-link:hover {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.2);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--gray-700);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    background-color: #f8fafc;
    color: var(--gray-900);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.hero-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--gray-900);
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-color);
}

.hero-location {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===========================
   Profile Photo
   =========================== */
.profile-photo {
    width: 200px;
    height: 200px;
    flex-shrink: 0;
    border-radius: 50%;
    overflow: hidden;
    border: 5px solid var(--primary-color);
    box-shadow: 0 10px 30px rgba(30, 58, 138, 0.2);
    transition: all var(--transition-base);
}

.profile-photo:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(30, 58, 138, 0.3);
}

.profile-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-weight: 600;
    font-size: var(--font-size-base);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: 0 2px 4px rgba(30, 58, 138, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(30, 58, 138, 0.3);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(30, 58, 138, 0.15);
}

/* ===========================
   About Section
   =========================== */
.about-section {
    background-color: #f8fafc;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--gray-700);
    text-align: center;
}

/* ===========================
   Experience Section - Timeline
   =========================== */
.experience-section {
    background-color: #f8fafc;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.timeline-marker {
    position: absolute;
    left: -46px;
    top: 8px;
    width: 15px;
    height: 15px;
    background-color: var(--white);
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    z-index: 1;
}

.timeline-content {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-md);
    transition: all var(--transition-base);
}

.timeline-content:hover {
    box-shadow: var(--box-shadow-lg);
    transform: translateX(5px);
}

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

.company-name {
    color: var(--primary-color);
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.timeline-period {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    font-weight: 500;
    background-color: var(--gray-100);
    padding: 4px 12px;
    border-radius: 20px;
}

.job-title {
    color: var(--gray-800);
    margin-bottom: var(--spacing-xs);
}

.job-location {
    color: var(--gray-600);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.job-responsibilities {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.job-responsibilities li {
    margin-bottom: var(--spacing-xs);
    color: var(--gray-700);
    line-height: 1.6;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.tech-tag {
    display: inline-block;
    background-color: var(--gray-100);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tech-tag:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Job Description */
.job-description {
    color: var(--gray-700);
    font-size: var(--font-size-base);
    line-height: 1.7;
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--gray-100);
    border-left: 3px solid var(--accent-color);
    border-radius: 4px;
}

/* Client Projects */
.client-projects {
    margin-top: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.client-project {
    padding: var(--spacing-md);
    background-color: #f8fafc;
    border-radius: var(--border-radius);
    border-left: 3px solid var(--accent-color);
}

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

.client-name {
    color: var(--gray-800);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.client-period {
    font-size: var(--font-size-xs);
    color: var(--gray-600);
    font-weight: 500;
    background-color: var(--white);
    padding: 3px 10px;
    border-radius: 15px;
}


/* ===========================
   Skills Section
   =========================== */
.skills-section {
    background-color: #f8fafc;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.skill-category {
    background-color: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: all var(--transition-base);
}

.skill-category:hover {
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.skill-category-title {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
    border-bottom: 2px solid var(--gray-200);
    padding-bottom: var(--spacing-xs);
}

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

.skill-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.skill-name {
    font-weight: 600;
    color: var(--gray-800);
}

.skill-level {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

.skill-bar {
    height: 8px;
    background-color: var(--gray-200);
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 10px;
    transition: width 1s ease-in-out;
}

/* ===========================
   Contact Section
   =========================== */
.contact-section {
    background-color: var(--light-gray);
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-intro {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--gray-700);
    margin-bottom: var(--spacing-xl);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.contact-card {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.contact-card:hover {
    box-shadow: 0 12px 24px rgba(30, 58, 138, 0.12);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.contact-info h3 {
    font-size: var(--font-size-base);
    color: var(--gray-900);
    margin-bottom: 4px;
}

.contact-info p {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

/* ===========================
   Footer
   =========================== */
.footer {
    background-color: var(--gray-900);
    color: var(--gray-400);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

/* ===========================
   Scroll to Top Button
   =========================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--box-shadow-lg);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: left var(--transition-base);
        box-shadow: var(--box-shadow-lg);
        padding: var(--spacing-lg) 0;
        gap: var(--spacing-sm);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: var(--spacing-xs) 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
    
    .hero-actions {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .profile-photo {
        width: 140px;
        height: 140px;
        margin-bottom: var(--spacing-lg);
    }
    
    .timeline {
        padding-left: 30px;
    }
    
    .timeline-marker {
        left: -36px;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .company-name {
        font-size: var(--font-size-xl);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .nav-menu .nav-controls {
        margin-left: 0;
        margin-top: var(--spacing-sm);
        justify-content: center;
        width: 100%;
    }
}

/* ===========================
   Print Styles
   =========================== */
@media print {
    .navbar,
    .scroll-top,
    .hero-actions,
    .nav-toggle,
    .footer {
        display: none !important;
    }
    
    * {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    body {
        background-color: var(--white) !important;
        font-size: 10pt;
        line-height: 1.4;
        margin: 0;
        padding: 0;
    }
    
    .section {
        padding: 10px 0;
        page-break-inside: avoid;
    }

    .hero {
        padding: 15px 0;
        color: var(--gray-900) !important;
        background: var(--white) !important;
        page-break-after: avoid;
    }
    
    .hero-content {
        gap: var(--spacing-md);
    }
    
    .profile-photo {
        width: 120px;
        height: 120px;
        page-break-inside: avoid;
    }

    .hero-title {
        color: var(--gray-900) !important;
        font-size: 20pt;
        margin-bottom: 5px;
    }

    .hero-subtitle, .hero-location {
        color: var(--gray-700) !important;
        font-size: 11pt;
        margin-bottom: 3px;
    }
    
    .section-title {
        font-size: 16pt;
        margin-bottom: 10px;
        page-break-after: avoid;
    }

    .timeline-item, .skill-category, .contact-card, .client-project {
        page-break-inside: avoid;
        break-inside: avoid;
        margin-bottom: 10px;
    }
    
    .timeline-content,
    .skill-category,
    .contact-card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
        padding: 8px;
    }
    
    .client-project {
        padding: 8px;
        margin-top: 8px;
    }

    .timeline::before {
        background: var(--gray-300);
    }

    .timeline-marker {
        border-color: var(--primary-color);
    }
    
    .skills-grid {
        gap: 10px;
    }
    
    .contact-methods {
        gap: 10px;
    }
    
    /* Ensure no orphan pages */
    .about-section,
    .experience-section,
    .skills-section,
    .contact-section {
        page-break-before: auto;
    }
}
}


/* ===========================
   PDF Generation Styles (html2pdf)
   =========================== */
.generating-pdf .navbar,
.generating-pdf .scroll-top,
.generating-pdf .hero-actions,
.generating-pdf .nav-toggle {
    display: none !important;
}

.generating-pdf .section {
    padding: 16px 0 !important;
    page-break-inside: avoid;
}

.generating-pdf .hero {
    padding: 32px 0 !important;
    color: var(--gray-900) !important;
    background: var(--white) !important;
}

.generating-pdf .hero-title {
    color: var(--gray-900) !important;
}

.generating-pdf .hero-subtitle, 
.generating-pdf .hero-location {
    color: var(--gray-700) !important;
}

.generating-pdf .timeline-item, 
.generating-pdf .skill-category, 
.generating-pdf .contact-card,
.generating-pdf .client-project {
    page-break-inside: avoid;
    break-inside: avoid;
    box-shadow: none !important;
    border: 1px solid var(--gray-300) !important;
}

.generating-pdf body {
    background-color: var(--white) !important;
    font-size: 11pt;
    line-height: 1.5;
}

.generating-pdf .timeline::before {
    background: var(--gray-300) !important;
}

.generating-pdf .timeline-marker {
    border-color: var(--primary-color) !important;
    background-color: var(--white) !important;
}

.generating-pdf .tech-tag {
    border: 1px solid var(--gray-300);
}

.generating-pdf .contact-icon {
    background: var(--primary-color) !important;
}