/* CSS Variables for Colors */
:root {
    --primary-black: #0a0a0a;
    --secondary-black: #111111;
    --accent-purple: #8a2be2;
    --accent-deep: #6a0dad;
    --accent-light: #b19cd9;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --border-color: #333333;
    --card-bg: #1a1a1a;
}

/* Base Reset & Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--primary-black);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--accent-purple), var(--accent-light));
    border-radius: 2px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-deep));
    color: white;
    border-radius: 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(138, 43, 226, 0.5);
}

/* Centered button: duplicate of .btn but centered when used alone */
.centered-btn {
    display: block;
    width: max-content;
    margin-left: auto;
    margin-right: auto;
    padding: 12px 30px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-deep));
    color: white;
    border-radius: 30px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
}

.centered-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(138, 43, 226, 0.5);
}

/* CV Page Styles */
.cv-header {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(rgba(10, 10, 10, 0.9), rgba(10, 10, 10, 0.9)), 
                radial-gradient(circle at 30% 50%, rgba(138, 43, 226, 0.2) 0%, transparent 50%),
                radial-gradient(circle at 70% 20%, rgba(106, 13, 173, 0.15) 0%, transparent 50%);
    overflow: hidden;
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    z-index: 2;
    position: relative;
}

.name-title {
    margin-bottom: 30px;
}

.name {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--accent-purple), var(--accent-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.1;
    margin-bottom: 10px;
}

.title {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.tagline {
    font-size: 1.2rem;
    max-width: 600px;
    margin-bottom: 40px;
    color: var(--text-secondary);
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-icon {
    background-color: var(--accent-purple);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Skills Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.skill-category {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border-left: 4px solid var(--accent-purple);
}

.skill-category h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--accent-light);
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-item {
    background-color: rgba(138, 43, 226, 0.1);
    border: 1px solid rgba(138, 43, 226, 0.3);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Experience & Education */
.timeline {
    position: relative;
    max-width: 800px;
}

.timeline-item {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 30px;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border-left: 4px solid var(--accent-purple);
}

.timeline-date {
    color: var(--accent-light);
    font-weight: 600;
    margin-bottom: 5px;
}

.timeline-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.timeline-company {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

/* Navigation */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s ease;
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
}

.nav-scrolled {
    padding: 15px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--accent-purple), var(--accent-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-weight: 600;
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-purple);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Footer */
.footer {
    background-color: var(--secondary-black);
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--accent-purple);
    transform: translateY(-5px);
}

/* Page Link */
.page-link-container {
    text-align: center;
    padding: 40px 0;
}

/* Project Page Styles */
.project-header {
    position: relative;
    padding: 150px 0 100px;
    background: linear-gradient(rgba(10, 10, 10, 0.9), rgba(10, 10, 10, 0.9)), 
                radial-gradient(circle at 20% 30%, rgba(138, 43, 226, 0.2) 0%, transparent 50%);
}

.project-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, var(--accent-purple), var(--accent-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.project-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 40px;
}

/* Sticky Progress Bar */
.progress-container {
    position: fixed;
    top: 50%;
    right: 20px;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.progress-bar {
    width: 4px;
    height: 300px;
    background-color: var(--border-color);
    border-radius: 2px;
    position: relative;
    margin-bottom: 20px;
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: linear-gradient(to bottom, var(--accent-purple), var(--accent-light));
    border-radius: 2px;
    transition: height 0.3s ease;
}

.progress-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.progress-link {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--border-color);
    position: relative;
    transition: all 0.3s ease;
}

.progress-link.active {
    background-color: var(--accent-purple);
    transform: scale(1.3);
}

.progress-link:hover {
    background-color: var(--accent-light);
}

.progress-tooltip {
    position: absolute;
    right: 25px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--accent-purple);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.progress-link:hover .progress-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Project Sections */
.project-section {
    padding: 100px 0;
    border-bottom: 1px solid var(--border-color);
}

.project-section:nth-child(even) {
    background-color: rgba(26, 26, 26, 0.5);
}

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

.section-content h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--accent-light);
}

.section-content p {
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.section-content ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.section-content li {
    margin-bottom: 10px;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
}

.section-content li::before {
    content: '▸';
    color: var(--accent-purple);
    position: absolute;
    left: 0;
}

.code-block {
    background-color: var(--secondary-black);
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
    overflow-x: auto;
    border-left: 4px solid var(--accent-purple);
}

.code-block code {
    font-family: 'Courier New', monospace;
    color: var(--accent-light);
}

/* Responsive Design */
@media (max-width: 992px) {
    .name {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .project-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .name {
        font-size: 2.5rem;
    }
    
    .title {
        font-size: 1.5rem;
    }
    
    .progress-container {
        right: 10px;
    }
    
    .project-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 576px) {
    .container {
        width: 95%;
        padding: 0 10px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 15px;
    }
    
    .project-title {
        font-size: 1.8rem;
    }
}

/* Center images by default */
img {
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
    height: auto;
}

/* Also center images inside common content wrappers */
.section-content img,
.project-section img,
.container img {
    display: block;
    margin-left: auto;
    margin-right: auto;
}