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

:root {
    --primary-color: #00ff88;
    --secondary-color: #00cc6a;
    --accent-color: #39ff9f;
    --text-primary: #f0fdf4;
    --text-secondary: #bbf7d0;
    --text-muted: #86efac;
    --bg-primary: #000000;
    --bg-secondary: #0f1419;
    --bg-tertiary: #1a1a1a;
    --border-color: #374151;
    --shadow: 0 25px 50px -12px rgba(0, 255, 136, 0.2);
    --shadow-lg: 0 35px 60px -12px rgba(0, 255, 136, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Space Grotesk', sans-serif;
    background: linear-gradient(135deg, #000000, #1a1a1a);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-right: 1px solid var(--border-color);
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-content {
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: white;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transform: translateX(5px);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow), 0 0 15px rgba(0, 255, 136, 0.4);
}

.nav-item i {
    font-size: 1.2rem;
    width: 20px;
}

.sidebar-footer {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.theme-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-btn:hover {
    background: var(--accent-color);
    color: white;
}

/* Main Content */
.main-content {
    margin-left: 280px;
    min-height: 100vh;
}

.section {
    min-height: 100vh;
    padding: 2rem;
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.section.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Intro Section */
.intro-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    height: 100vh;
    padding-top: 2rem;
}

.intro-greeting {
    margin-bottom: 2rem;
}

.greeting-line {
    font-size: 1.2rem;
    color: var(--text-muted);
    font-weight: 400;
}

.intro-name {
    font-size: 4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0.5rem 0;
    line-height: 1.1;
    white-space: nowrap;
    overflow: hidden;
}

.intro-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.title-cursor {
    animation: blink 1s infinite;
    color: var(--accent-color);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.intro-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.8;
}

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

.intro-contact .contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.intro-contact .contact-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.2);
}

.intro-contact .contact-item i {
    color: var(--primary-color);
    font-size: 1.1rem;
    width: 20px;
}

.intro-contact .contact-item span {
    color: var(--text-secondary);
    font-weight: 500;
}

.intro-actions {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
}

.about-actions {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
}

.about-actions .btn-primary {
    background: linear-gradient(135deg, #000000, #1a1a1a);
    color: var(--primary-color);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.about-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.3);
    border-color: var(--primary-color);
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow), 0 0 20px rgba(0, 255, 136, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 255, 136, 0.5);
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.intro-visual {
    position: relative;
    height: 500px;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-element {
    position: absolute;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: var(--shadow);
    animation: float 6s ease-in-out infinite;
}

.element-1 {
    top: 10%;
    left: 20%;
    animation-delay: 0s;
}

.element-2 {
    top: 30%;
    right: 10%;
    animation-delay: 1.5s;
}

.element-3 {
    bottom: 30%;
    left: 10%;
    animation-delay: 3s;
}

.element-4 {
    bottom: 10%;
    right: 20%;
    animation-delay: 4.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Work Section - Three Card Grid */
.work-container {
    max-width: 1200px;
    margin: 0 auto;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 3rem 0;
}

.project-card {
    background: var(--bg-secondary);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.project-image {
    height: 400px;
    background: linear-gradient(135deg, #000000, #1a1a1a);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    opacity: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-info {
    text-align: center;
    color: var(--primary-color);
    padding: 2rem;
    max-width: 100%;
}

.project-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.project-info p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.project-tech span {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.project-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.project-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(0, 255, 136, 0.1);
    border-radius: 10px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.project-link:hover {
    background: rgba(0, 255, 136, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 255, 136, 0.3);
}

/* About Section */
.about-container {
    max-width: 1200px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.about-description p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

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

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    color: white;
    box-shadow: var(--shadow-lg);
}

/* Skills Section */
.skills-container {
    max-width: 1200px;
    margin: 0 auto;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.category-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--text-primary);
    text-align: center;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skill-name {
    font-weight: 500;
    color: var(--text-primary);
}

.skill-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    width: 0%;
    transition: width 1s ease;
}

.skill-progress.animate {
    width: var(--width);
}

/* Contact Section */
.contact-container {
    max-width: 1200px;
    margin: 0 auto;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.contact-details h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

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

.contact-form {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.btn-submit {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 1001;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.75rem;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .intro-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .intro-name {
        font-size: 3rem;
        white-space: nowrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-image {
        height: 350px;
    }
    
    .project-info {
        padding: 2rem 1.5rem;
    }
    
    .project-links {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .project-link {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 768px) {
    .intro-name {
        font-size: 2.5rem;
        white-space: nowrap;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    
    .intro-contact {
        align-items: center;
    }
    
    .intro-contact .contact-item {
        width: 100%;
        max-width: 300px;
    }
    
    .floating-element {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .intro-name {
        font-size: 2rem;
        white-space: nowrap;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .intro-actions {
        width: 100%;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}