/* Base Styles and Variables */
:root {
    /* Dark Mode Colors */
    --bg-primary: #121212;
    --bg-secondary: #1E1E1E;
    --text-primary: #FFFFFF;
    --text-secondary: #B3B3B3;
    --border-color: #333333;
    
    /* Accent Colors */
    --accent-primary: #4F46E5;
    --accent-secondary: #10B981;
    --accent-tertiary: #F59E0B;
    --error-color: #EF4444;
    --success-color: #10B981;
    
    /* Fonts */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Roboto Mono', monospace;
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.8s ease;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    --border-radius-full: 9999px;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

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

a:hover {
    color: var(--accent-secondary);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    display: block;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--border-radius-full);
}

/* Particle Background */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(10px);
    transition: all var(--transition-fast);
}

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

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-secondary);
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    margin: 0 var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    position: relative;
    font-weight: 500;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transition: width var(--transition-fast);
    border-radius: var(--border-radius-full);
}

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

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: var(--border-radius-full);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 80px;
    background: linear-gradient(135deg, rgba(30, 30, 30, 0.8), rgba(18, 18, 18, 0.9));
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    padding: 0 var(--spacing-md);
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(90deg, var(--text-primary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--accent-secondary);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

.cta-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.cta-button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    color: var(--text-primary);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.5);
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-full);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--accent-primary);
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    z-index: 1;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--text-secondary);
    border-radius: var(--border-radius-full);
    position: relative;
    display: flex;
    justify-content: center;
}

.wheel {
    width: 6px;
    height: 6px;
    background-color: var(--text-secondary);
    border-radius: var(--border-radius-full);
    position: absolute;
    top: 10px;
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(20px);
    }
}

.arrow {
    margin-top: var(--spacing-xs);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.arrow span {
    display: block;
    width: 10px;
    height: 10px;
    border-bottom: 2px solid var(--text-secondary);
    border-right: 2px solid var(--text-secondary);
    transform: rotate(45deg);
    margin: -5px 0;
    animation: arrow 1.5s infinite;
}

.arrow span:nth-child(2) {
    animation-delay: 0.2s;
}

.arrow span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes arrow {
    0% {
        opacity: 0;
        transform: rotate(45deg) translate(-5px, -5px);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: rotate(45deg) translate(5px, 5px);
    }
}

/* About Section */
.about {
    background-color: rgba(30, 30, 30, 0.3);
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.about-image {
    position: relative;
}

.image-container {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

.profile-image {
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-lg);
    background-image: url('../images/profile.png');
    background-size: cover;
    background-position: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
    transition: transform var(--transition-medium);
}

.profile-image:hover {
    transform: scale(1.05);
}

.image-container::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    width: calc(100% - 20px);
    height: calc(100% - 20px);
    border: 4px solid var(--accent-primary);
    border-radius: var(--border-radius-lg);
    z-index: 0;
}

.about-text h3 {
    color: var(--accent-secondary);
    margin: var(--spacing-md) 0 var(--spacing-sm);
    font-size: 1.5rem;
}

.what-i-do {
    margin: var(--spacing-sm) 0 var(--spacing-md);
}

.what-i-do li {
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-left: var(--spacing-md);
}

.what-i-do li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background-color: var(--accent-primary);
    border-radius: var(--border-radius-full);
}

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

.connect {
    margin-top: var(--spacing-md);
    font-style: italic;
    color: var(--accent-secondary);
}

/* Experience Section */
.experience {
    background-color: rgba(18, 18, 18, 0.4);
    position: relative;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50px;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    padding-left: 100px;
}

.timeline-dot {
    position: absolute;
    left: 44px;
    top: 0;
    width: 14px;
    height: 14px;
    border-radius: var(--border-radius-full);
    background-color: var(--accent-primary);
    border: 2px solid var(--bg-primary);
    z-index: 1;
}

.timeline-item.current .timeline-dot {
    background-color: var(--accent-tertiary);
    box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.3);
}

.timeline-content {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.timeline-header {
    margin-bottom: var(--spacing-sm);
}

.timeline-header h3 {
    font-size: 1.3rem;
    color: var(--accent-primary);
    margin-bottom: var(--spacing-xs);
}

.company {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.date {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

.achievements {
    margin-top: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

.achievements li {
    margin-bottom: var(--spacing-xs);
    position: relative;
}

.achievements li::before {
    content: '•';
    position: absolute;
    left: -15px;
    color: var(--accent-secondary);
}

.earlier-positions li {
    margin-bottom: var(--spacing-xs);
}

/* Skills Section */
.skills {
    background-color: rgba(30, 30, 30, 0.3);
    position: relative;
}

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

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

.skills-category h3 {
    font-size: 1.3rem;
    color: var(--accent-secondary);
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
}

.skills-category h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-secondary);
    border-radius: var(--border-radius-full);
}

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

.skill-item {
    margin-bottom: var(--spacing-xs);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
}

.skill-bar {
    height: 8px;
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: var(--border-radius-full);
    width: 0;
    transition: width 1.5s ease-in-out;
}

.skills-network {
    margin-top: var(--spacing-xl);
}

.skills-network h3 {
    font-size: 1.3rem;
    color: var(--accent-tertiary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

#skills-graph {
    width: 100%;
    height: 400px;
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

/* Contact Section */
.contact {
    background-color: rgba(18, 18, 18, 0.4);
    position: relative;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-top: 5px;
}

.contact-item h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-item p {
    color: var(--text-secondary);
}

.contact-form {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-message {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

input, textarea {
    width: 100%;
    padding: var(--spacing-sm);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-primary);
    transition: border-color var(--transition-fast);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    color: var(--text-primary);
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.5);
}

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md) 0;
    position: relative;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-secondary);
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-social a {
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-social a:hover {
    color: var(--accent-primary);
}

.footer-copyright {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Animation Classes */
.reveal-text {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

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

.reveal-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

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

.success-message {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    text-align: center;
    padding: 2rem;
    background-color: rgba(16, 185, 129, 0.1);
    border-radius: var(--border-radius-md);
    margin-top: 2rem;
}

.success-message.show {
    display: block;
    opacity: 1;
}

.success-message h3 {
    color: var(--accent-secondary);
    margin-bottom: 0.5rem;
}

.form-fade-out {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    pointer-events: none;
}

.submit-button {
    background-color: #4F46E5; /* Indigo accent color */
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    margin-top: 1rem;
    position: relative;
    overflow: hidden;
}

.submit-button:hover {
    background-color: #4338CA; /* Slightly darker indigo */
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.submit-button:active {
    transform: translateY(1px);
}

.submit-button:disabled {
    background-color: #6B7280;
    cursor: not-allowed;
    box-shadow: none;
}

.g-recaptcha-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.g-recaptcha {
    transform: scale(0.95);
    transform-origin: center;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.recaptcha-error {
    margin-top: 8px;
    color: var(--error-color);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.error-toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--error-color);
    color: white;
    padding: 12px 20px;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error-toast i {
    font-size: 1.2rem;
}

@media screen and (max-width: 340px) {
    .g-recaptcha {
        transform: scale(0.85);
    }
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
    html {
        font-size: 14px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .image-container {
        margin-bottom: var(--spacing-md);
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        order: 2;
    }
    
    .contact-form {
        order: 1;
        margin-bottom: var(--spacing-md);
    }
}

@media screen and (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--bg-secondary);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: var(--spacing-lg);
        transition: left var(--transition-medium);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        margin: var(--spacing-sm) 0;
        font-size: 1.2rem;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        padding-left: 70px;
    }
    
    .timeline-dot {
        left: 24px;
    }
    
    .skills-container {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 576px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero h2 {
        font-size: 1.2rem;
    }
    
    .timeline-content {
        padding: var(--spacing-sm);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    .reveal-text, .reveal-item {
        transition: none;
    }
    
    .wheel, .arrow span {
        animation: none;
    }
    
    .skill-level {
        transition: none;
    }
}