/* ========================================
   Variables & Reset
   ======================================== */

:root {
    /* Color Palette */
    --bg-primary: rgb(15, 23, 42);
    --bg-secondary: rgb(30, 41, 59);
    --text-primary: rgb(226, 232, 240);
    --text-secondary: rgb(148, 163, 184);
    --text-muted: rgb(100, 116, 139);
    --accent-primary: rgb(94, 234, 212);
    --accent-secondary: rgb(56, 189, 248);
    --border-color: rgb(51, 65, 85);
    --highlight-bg: rgba(94, 234, 212, 0.1);
    --spotlight-color: rgba(29, 78, 216, 0.15);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-mono: 'Fira Code', 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* ========================================
   Mouse Spotlight Effect
   ======================================== */

.spotlight {
    pointer-events: none;
    position: fixed;
    inset: 0;
    z-index: 30;
    transition: background var(--transition-smooth);
    background: radial-gradient(600px at 0px 0px, var(--spotlight-color), transparent 80%);
}

/* ========================================
   Layout Structure
   ======================================== */

/* Container wrapper - centers sidebar and content as a unit */
.container-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.sidebar {
    position: sticky;
    top: 0;
    width: 320px;
    height: 100vh;
    background-color: var(--bg-primary);
    padding: var(--spacing-2xl) var(--spacing-xl);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    z-index: 100;
    overflow-y: auto;
    align-self: flex-start;
}

.nav-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    height: 100%;
}

.nav-header {
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.name {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
}

.title {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.tagline {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-style: italic;
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: var(--spacing-xs) 0;
    padding-left: 28px;
    transition: color var(--transition-fast);
    position: relative;
    display: block;
    opacity: 0.7;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 1px;
    background-color: var(--text-muted);
    transition: all var(--transition-smooth);
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    opacity: 1;
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 24px;
    background-color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: all var(--transition-smooth);
    opacity: 0.7;
}

.social-links a:hover {
    color: var(--text-primary);
    opacity: 1;
    transform: translateY(-2px);
}

.whatsapp-link:hover {
    color: #25D366;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--accent-primary);
    color: var(--bg-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-smooth);
    text-align: center;
    justify-content: center;
}

.cta-button:hover {
    background-color: var(--accent-secondary);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(94, 234, 212, 0.25);
}

.main-content {
    width: 667px;
    padding: var(--spacing-2xl) 0;
    flex-shrink: 0;
}

/* ========================================
   Section Styling
   ======================================== */

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

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
}

/* ========================================
   About Section
   ======================================== */

.about-content {
    max-width: 900px;
}

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.highlight {
    color: var(--accent-primary);
    font-weight: 600;
}

.about-content p {
    margin-bottom: var(--spacing-md);
    font-size: 1.05rem;
}

.about-highlights {
    list-style: none;
    margin: var(--spacing-lg) 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.about-highlights li {
    padding-left: var(--spacing-md);
    position: relative;
}

.about-highlights li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-size: 1.2rem;
}

.quote {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--accent-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    color: var(--text-primary);
    border-radius: 4px;
}

.quote i {
    color: var(--accent-primary);
    margin-right: var(--spacing-xs);
}

.quote-author {
    display: block;
    margin-top: var(--spacing-sm);
    font-size: 0.95rem;
    color: var(--text-muted);
    font-style: normal;
}

.personal-info {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

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

.info-item i {
    color: var(--accent-primary);
    font-size: 1.1rem;
}

/* ========================================
   Experience Section
   ======================================== */

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

.experience-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    border-radius: 8px;
    transition: all var(--transition-smooth);
    position: relative;
    cursor: pointer;
}

.experience-item:hover {
    background-color: rgba(94, 234, 212, 0.05);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.exp-date {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.exp-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.exp-title {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
    transition: color var(--transition-fast);
    display: inline-block;
}

.exp-title:hover {
    color: var(--accent-primary);
}

.arrow {
    display: inline-block;
    transition: transform var(--transition-fast);
    margin-left: var(--spacing-xs);
}

.exp-title:hover .arrow {
    transform: translateX(3px);
}

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

.exp-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: var(--spacing-sm) 0;
}

.exp-achievements {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin: var(--spacing-sm) 0;
}

.exp-achievements li {
    padding-left: var(--spacing-md);
    position: relative;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

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

.tag {
    background-color: var(--highlight-bg);
    color: var(--accent-primary);
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(94, 234, 212, 0.3);
}

.view-more {
    margin-top: var(--spacing-lg);
    text-align: left;
}

.view-more-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    display: inline-block;
    transition: all var(--transition-fast);
}

.view-more-link:hover {
    color: var(--accent-secondary);
}

.view-more-link .arrow {
    transition: transform var(--transition-fast);
}

.view-more-link:hover .arrow {
    transform: translateX(3px);
}

/* ========================================
   Projects Section
   ======================================== */

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

.project-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    border-radius: 8px;
    transition: all var(--transition-smooth);
    background-color: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.project-item:hover {
    background-color: rgba(94, 234, 212, 0.05);
    border-color: rgba(94, 234, 212, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Make project title change color when hovering anywhere on the card */
.project-item:hover .project-title {
    color: var(--accent-primary);
}

/* Make arrow move when hovering anywhere on the card */
.project-item:hover .arrow {
    transform: translateX(3px);
}

.project-image {
    width: 100%;
    height: 140px;
    border-radius: 6px;
    overflow: hidden;
}

.project-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-color);
    border-radius: 6px;
}

.project-placeholder i {
    font-size: 3rem;
    color: var(--accent-primary);
    opacity: 0.5;
}

.project-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.project-title {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
    transition: color var(--transition-fast);
    display: inline-block;
}

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

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   Skills Page
   ======================================== */

.skills-category {
    margin-bottom: var(--spacing-2xl);
}

.skills-category-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.skills-category-title i {
    color: var(--accent-primary);
    font-size: 1.3rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-md);
}

.skill-item {
    background-color: rgba(30, 41, 59, 0.5);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-smooth);
}

.skill-item:hover {
    border-color: rgba(94, 234, 212, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.skill-name {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.skill-years {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.skill-bar {
    width: 100%;
    height: 6px;
    background-color: var(--bg-primary);
    border-radius: 3px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
    border-radius: 3px;
    transition: width 1s ease;
}

/* ========================================
   Certifications Section
   ======================================== */

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.cert-item {
    background-color: rgba(30, 41, 59, 0.5);
    padding: var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    gap: var(--spacing-md);
    transition: all var(--transition-smooth);
}

.cert-item:hover {
    border-color: rgba(94, 234, 212, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.cert-year {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 600;
    min-width: 80px;
}

.cert-content {
    flex: 1;
}

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

.cert-org,
.cert-status {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.cert-status {
    color: var(--accent-primary);
    font-style: italic;
}

/* ========================================
   Professional Attributes (Circle Diagrams)
   ======================================== */

.attributes-section {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-color);
}

.attributes-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.attributes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.attribute-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    transition: transform var(--transition-smooth);
}

.attribute-item:hover {
    transform: translateY(-2px);
}

.circle-progress {
    width: 80px;
    height: 80px;
    transform: rotate(-90deg);
}

.circle-bg {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 6;
}

.circle-fill {
    fill: none;
    stroke: var(--accent-secondary);
    stroke-width: 6;
    stroke-linecap: round;
    stroke-dasharray: 283;
    stroke-dashoffset: 283;
    transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1), stroke 0.3s ease;
    filter: drop-shadow(0 0 4px rgba(56, 189, 248, 0.3));
}

.attribute-item:hover .circle-fill {
    stroke: var(--accent-primary);
    filter: drop-shadow(0 0 6px rgba(94, 234, 212, 0.4));
}

.attribute-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.attribute-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-secondary);
    margin-bottom: 0.125rem;
    transition: color 0.3s ease;
}

.attribute-item:hover .attribute-value {
    color: var(--accent-primary);
}

.attribute-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-2xl);
    color: var(--text-muted);
}

.footer p {
    margin: var(--spacing-xs) 0;
}

.footer i {
    color: #e74c3c;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1200px) {
    .container-wrapper {
        max-width: 100%;
        padding: var(--spacing-lg);
    }
    
    .main-content {
        width: 550px;
    }
    
    .sidebar {
        width: 280px;
    }
    
    .experience-item,
    .project-item {
        grid-template-columns: 120px 1fr;
    }
}

@media (max-width: 768px) {
    .container-wrapper {
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-lg);
    }
    
    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
        border-bottom: 1px solid var(--border-color);
        padding: var(--spacing-lg);
    }
    
    .nav-content {
        gap: var(--spacing-lg);
    }
    
    .nav-menu {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .nav-link::before {
        display: none;
    }
    
    .main-content {
        width: 100%;
        padding: var(--spacing-lg) 0;
    }
    
    .experience-item,
    .project-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .exp-date {
        margin-bottom: var(--spacing-xs);
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .personal-info {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .name {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .attributes-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .circle-progress {
        width: 70px;
        height: 70px;
    }
}

@media (max-width: 480px) {
    .name {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.25rem;
    }
    
    .lead {
        font-size: 1.1rem;
    }
    
    .cta-button {
        width: 100%;
    }
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeIn 0.6s ease;
}

/* ========================================
   Scrollbar Styling
   ======================================== */

::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}