:root {
    /* Color Palette - Premium Blue Range */
    --bg-color: #0b0e14;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #00a8e8; /* Vibrant Sky Blue */
    --accent-glow: rgba(0, 168, 232, 0.4);
    --secondary-color: #004e92; /* Deep Professional Blue */
    --highlight-color: #91d8ff; /* Light Cyan Highlight */
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-family: 'Inter', sans-serif;
    
    /* Transitions (Resource Efficient) */
    --transition-speed: 0.3s;
    --transition-timing: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-color);
}

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

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s infinite alternate var(--transition-timing);
}

.orb-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-color), transparent 70%);
}

.orb-2 {
    bottom: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--secondary-color), transparent 70%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(5%, 5%) scale(1.1); }
}

/* Typography & Utilities */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* Glassmorphism Classes */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 1rem 0;
    border-bottom: 1px solid var(--glass-border);
    transition: transform var(--transition-speed) var(--transition-timing);
}

.navbar.hidden {
    transform: translateY(-100%);
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed);
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-content {
    text-align: center;
}

.avatar-container {
    margin-bottom: 2rem;
}

.avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 40px var(--accent-glow);
    border: 4px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

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

.avatar-text {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    letter-spacing: 2px;
}

.title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.bio {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-speed);
    display: inline-block;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* About Section */
.about-content {
    padding: 3rem;
    border-radius: 20px;
}

.about-content p {
    color: var(--text-secondary);
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-content p:last-child {
    margin-bottom: 0;
    font-style: italic;
    color: var(--text-primary);
    border-top: 1px solid var(--glass-border);
    padding-top: 1.5rem;
    margin-top: 2rem;
}

/* Experience Accordion */
.experience-desc {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion-item {
    border-radius: 12px;
    overflow: hidden;
    transition: transform var(--transition-speed);
}

.accordion-item:hover {
    transform: translateX(5px);
}

.accordion-header {
    width: 100%;
    padding: 1.5rem 2rem;
    background: transparent;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
    color: inherit;
    font-family: inherit;
}

.role-summary-container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.company-logo {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: cover;
    background: white; /* Ensures logos with transparency look good on dark background */
    padding: 2px;
}

.role-summary h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.role-summary .company {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.role-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.role-meta .date {
    color: var(--accent-color);
    font-weight: 500;
    font-size: 0.9rem;
}

.toggle-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-secondary);
    transition: transform var(--transition-speed);
    width: 24px;
    text-align: center;
}

.accordion-header[aria-expanded="true"] .toggle-icon {
    transform: rotate(45deg);
    color: var(--accent-color);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-speed) var(--transition-timing), opacity var(--transition-speed) var(--transition-timing);
    opacity: 0;
}

.accordion-header[aria-expanded="true"] + .accordion-content {
    opacity: 1;
}

.content-inner {
    padding: 0 2rem 1.5rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: 1rem;
    padding-top: 1.5rem;
}

.content-inner ul {
    list-style-position: outside;
    margin-left: 1rem;
    color: var(--text-secondary);
}

.content-inner li {
    margin-bottom: 0.75rem;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.skill-category {
    padding: 2rem;
    border-radius: 12px;
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.pill-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.pill {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--text-primary);
    border-radius: 50px;
    font-size: 0.9rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all var(--transition-speed);
    text-decoration: none;
    cursor: pointer;
}

.pill:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 168, 232, 0.2);
}

/* Contact Section */
.contact-card {
    padding: 4rem 2rem;
    border-radius: 20px;
    text-align: center;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.contact-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-speed);
}

.contact-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
    transform: translateY(-3px);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-secondary);
    border-top: 1px solid var(--glass-border);
}

/* Scroll Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--transition-timing), transform 0.8s var(--transition-timing);
    will-change: opacity, transform;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .title { font-size: 2.5rem; }
    .subtitle { font-size: 1.2rem; }
    .nav-links { display: none; }
    .hero-actions { flex-direction: column; }
    .role-meta { flex-direction: column; align-items: flex-end; gap: 0.5rem; }
}