/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* Variables */
:root {
    --primary-color: #4C6EF5;
    --primary-light: #748FFC;
    --primary-dark: #364FC7;
    --secondary-color: #20C997;
    --dark-bg: #121212;
    --dark-bg-light: #252525;
    --light-text: #F8F9FA;
    --gray-text: #ADB5BD;
    --transition-speed: 0.3s;
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* No scroll for body when mobile menu is open */
body.no-scroll {
    overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

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

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

ul {
    list-style: none;
}

/* Canvas Container (Three.js) */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.4;
    pointer-events: none;
}

/* Main Container */
.main-container {
    position: relative;
    z-index: 2;
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--dark-bg-light);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
    padding: 2rem 0;
    z-index: 100;
    transition: width var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
}

/* Toggle button for sidebar */
.sidebar-toggle {
    position: absolute;
    top: 20px;
    right: -15px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: var(--primary-color);
    border: none;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 101;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-speed) ease;
    outline: none;
}

.sidebar-toggle:hover {
    background-color: var(--primary-dark);
    transform: scale(1.1);
}

.sidebar-toggle i {
    transition: transform var(--transition-speed) ease;
}

.sidebar.collapsed .sidebar-toggle i {
    transform: rotate(180deg);
}

.sidebar.collapsed .sidebar-toggle:hover {
    transform: scale(1.1);
}

/* Profile Section in Sidebar */
.profile {
    text-align: center;
    padding: 0 1.5rem 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1.5rem;
    border: 4px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(76, 110, 245, 0.6);
}

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

.name {
    font-size: 1.8rem;
    color: var(--light-text);
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.title {
    color: var(--primary-light);
    font-size: 1rem;
}

/* Sidebar Menu */
.sidebar-menu {
    flex-grow: 1;
    overflow-y: auto;
    margin-top: 2rem;
}

.sidebar-menu ul {
    padding: 0;
}

.sidebar-menu li {
    margin-bottom: 0.5rem;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 0.8rem 1.5rem;
    color: var(--gray-text);
    transition: all var(--transition-speed) ease;
    position: relative;
    overflow: hidden;
}

.menu-item:hover, .menu-item.active {
    color: var(--light-text);
    background-color: rgba(76, 110, 245, 0.1);
}

.menu-item:hover::before, .menu-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background-color: var(--primary-color);
}

.menu-item .icon {
    margin-right: 1rem;
    width: 20px;
    text-align: center;
}

.menu-item .text {
    font-size: 1rem;
    transition: opacity var(--transition-speed) ease, visibility var(--transition-speed) ease;
    white-space: nowrap;
    overflow: hidden;
}

/* Collapsed Sidebar */
.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .profile {
    padding: 1rem 0;
}

.sidebar.collapsed .profile-image {
    width: 50px;
    height: 50px;
}

.sidebar .name,
.sidebar .title,
.sidebar .menu-item .text {
    transition: opacity var(--transition-speed) ease, visibility var(--transition-speed) ease;
}

.sidebar.collapsed .name,
.sidebar.collapsed .title,
.sidebar.collapsed .menu-item .text {
    opacity: 0;
    visibility: hidden;
    display: none;
}

.sidebar.collapsed .menu-item {
    justify-content: center;
    padding: 0.8rem;
}

.sidebar.collapsed .menu-item .icon {
    margin-right: 0;
}

/* Content Wrapper */
.content-wrapper {
    flex-grow: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-speed) ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    width: calc(100% - var(--sidebar-width));
}

.content-wrapper.expanded {
    margin-left: var(--sidebar-collapsed-width);
    width: calc(100% - var(--sidebar-collapsed-width));
}

/* Horizontal Navigation */
.horizontal-nav {
    background-color: rgba(37, 37, 37, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 90;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    overflow-x: auto;
    white-space: nowrap;
    display: flex;
    align-items: center;
}

.nav-content {
    display: inline-flex;
    align-items: center;
    gap: 2rem;
    flex-grow: 1;
}

.horizontal-nav a {
    color: var(--gray-text);
    font-weight: 500;
    transition: all var(--transition-speed) ease;
    padding: 0.5rem 0;
    position: relative;
}

.horizontal-nav a:hover, 
.horizontal-nav a.active {
    color: var(--light-text);
}

.horizontal-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-speed) ease;
}

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

/* Content Sections */
.content-sections {
    flex-grow: 1;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

@media (max-width: 576px) {
    .content-sections {
        padding: 1rem;
    }
}

.section {
    opacity: 0;
    visibility: hidden;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: opacity var(--transition-speed) ease;
    padding: 2rem;
    overflow-y: auto;
}

.section.active {
    opacity: 1;
    visibility: visible;
    position: relative;
}

.section-content {
    max-width: 1200px;
    margin: 0 auto;
    background-color: rgba(37, 37, 37, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
    padding: 2.5rem;
    transition: transform 0.4s ease, opacity 0.4s ease;
    transform: translateY(0);
}

.section:not(.active) .section-content {
    transform: translateY(50px);
    opacity: 0;
}

.section h2 {
    font-size: 2.5rem;
    color: var(--light-text);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 50px;
    height: 4px;
    background-color: var(--primary-color);
}

/* Hero Section */
.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 0;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.highlight {
    color: var(--primary-color);
}

.cta-buttons {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-speed) ease;
}

.cta-button.primary {
    background-color: var(--primary-color);
    color: white;
}

.cta-button.primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(76, 110, 245, 0.2);
}

.cta-button.secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.cta-button.secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(76, 110, 245, 0.2);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.about-content h3 {
    color: var(--primary-light);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.about-content ul {
    list-style-type: disc;
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.about-content ul li {
    margin-bottom: 0.5rem;
}

/* Experience Section */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    width: 2px;
    background-color: rgba(255, 255, 255, 0.1);
    top: 0;
    bottom: 0;
    left: 20px;
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 3rem;
}

.timeline-dot {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--primary-color);
    left: 13px;
    top: 6px;
}

.timeline-date {
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.timeline-content {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 8px;
}

.timeline-content h3 {
    color: var(--light-text);
    margin-bottom: 1rem;
}

.tools-used, .environment {
    margin-top: 1rem;
}

.timeline-content h4 {
    color: var(--gray-text);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    display: inline-block;
    background-color: rgba(76, 110, 245, 0.1);
    color: var(--primary-color);
    font-size: 0.8rem;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
}

/* Skills Section */
.skill-category {
    margin-bottom: 3rem;
}

.skill-category h3 {
    color: var(--primary-light);
    margin-bottom: 1.5rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.skill-item {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 8px;
    transition: transform var(--transition-speed) ease;
    width: 100%;
}

.skill-item:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.08);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.skill-info h4 {
    margin-bottom: 0;
}

.skill-info p {
    color: var(--gray-text);
    font-size: 0.85rem;
}

.skill-bar {
    height: 6px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: width 1s ease;
}

/* Education Section */
.education, .certifications, .personal-experiences {
    margin-bottom: 2.5rem;
}

.education h3, .certifications h3, .personal-experiences h3 {
    color: var(--primary-light);
    margin-bottom: 1.5rem;
}

.education-item, .certification-item, .personal-experience {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.education-item h4, .certification-item h4, .personal-experience h4 {
    color: var(--light-text);
    margin-bottom: 0.5rem;
}

.education-item p, .certification-item p {
    color: var(--gray-text);
}

/* Contact Section */
.contact-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    width: 100%;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--primary-light);
    font-size: 1.2rem;
    transition: all var(--transition-speed) ease;
}

.social-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.contact-form {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 8px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 4px;
    color: var(--light-text);
    font-family: 'Poppins', sans-serif;
    transition: background-color var(--transition-speed) ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 2px rgba(76, 110, 245, 0.5);
}

/* Honeypot anti-spam field */
.honeypot-field {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    height: 0;
    width: 0;
    z-index: -1;
    pointer-events: none;
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light-text);
    font-size: 1.5rem;
    cursor: pointer;
    margin-right: 1rem;
    padding: 0.5rem;
    transition: color var(--transition-speed) ease;
}

.mobile-menu-toggle:hover {
    color: var(--primary-color);
}

/* Mobile Overlay */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--dark-bg);
    z-index: 1000;
    display: none;
    flex-direction: column;
    padding: 2rem;
    overflow-y: auto;
}

.mobile-overlay.active {
    display: flex;
}

.close-mobile-menu {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--light-text);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    transition: color var(--transition-speed) ease;
}

.close-mobile-menu:hover {
    color: var(--primary-color);
}

/* Mobile Menu Styling */
.mobile-overlay .profile {
    margin: 2rem 0;
    text-align: center;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-overlay .sidebar-menu {
    margin-top: 1rem;
}

.mobile-overlay .menu-item {
    padding: 1rem;
    font-size: 1.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-overlay .menu-item .icon {
    width: 30px;
    text-align: center;
    margin-right: 1rem;
    color: var(--primary-color);
}

.mobile-overlay .menu-item:hover,
.mobile-overlay .menu-item.active {
    background-color: rgba(76, 110, 245, 0.15);
}

.mobile-overlay .profile-image {
    width: 120px;
    height: 120px;
}

/* Responsive Styles */
@media (max-width: 992px) {
    :root {
        --sidebar-width: 240px;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .skills-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .contact-wrapper {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: var(--sidebar-collapsed-width);
        display: none;
    }
    
    .sidebar .profile-image {
        width: 50px;
        height: 50px;
    }
    
    .sidebar .name,
    .sidebar .title,
    .sidebar .menu-item .text {
        opacity: 0;
        visibility: hidden;
    }
    
    .sidebar .menu-item {
        justify-content: center;
        padding: 0.8rem;
    }
    
    .sidebar .menu-item .icon {
        margin-right: 0;
    }
    
    .content-wrapper {
        margin-left: var(--sidebar-collapsed-width);
        margin-left: 0;
        width: 100%;
    }
    
    .content-wrapper.expanded {
        margin-left: 0;
        width: 100%;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .horizontal-nav {
        display: flex;
        align-items: center;
        padding: 1rem;
    }
    
    .section {
        padding: 1rem;
    }
    
    .section-content {
        padding: 1.5rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .skill-item {
        padding: 1.2rem;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .section h2 {
        font-size: 1.8rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .timeline-item {
        padding-left: 40px;
    }
    
    .hero-content {
        padding: 1.5rem 0;
    }
    
    .section {
        padding: 0.5rem;
    }
    
    .section-content {
        padding: 1rem;
        border-radius: 8px;
    }
    
    .skill-item {
        padding: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .skill-info {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .skill-info h4 {
        margin-bottom: 0.3rem;
    }
    
    .contact-form {
        padding: 1.2rem;
    }

    .form-group input,
    .form-group textarea {
        padding: 1rem;
        font-size: 16px; /* Prevents iOS zoom on focus */
    }
    
    .cta-button {
        width: 100%;
        padding: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .social-links {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .contact-info p {
        text-align: center;
    }
}

/* Animation Classes */
.animate-in {
    animation: fadeInUp 0.5s ease forwards;
}

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