/* ===== VARIABLES ===== */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #0099cc;
    --accent-color: #ff6b35;
    --dark-bg: #0a0a0a;
    --darker-bg: #050505;
    --light-text: #ffffff;
    --gray-text: #b0b0b0;
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.3);
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.3);
    --border-radius: 15px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== GLOBAL STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', monospace;
    font-weight: 700;
}

.section-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray-text);
    margin-bottom: 2rem;
}

/* ===== NAVIGATION ===== */
.navbar {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition);
    padding: 1rem 0;
}

.navbar.scrolled {
    background: rgba(5, 5, 5, 0.98);
    box-shadow: var(--shadow-glow);
}

.navbar-brand {
    font-family: 'Orbitron', monospace;
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--light-text) !important;
    text-decoration: none;
}

.navbar-nav .nav-link {
    color: var(--gray-text) !important;
    font-weight: 500;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
    background: rgba(0, 212, 255, 0.1);
}

.navbar-nav .nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.navbar-nav .nav-link:hover::before,
.navbar-nav .nav-link.active::before {
    width: 80%;
}

/* ===== HERO SECTION ===== */
.hero-section {
    background: var(--gradient-dark);
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.particles-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
    }
    to {
        text-shadow: 0 0 30px rgba(0, 212, 255, 0.8), 0 0 40px rgba(0, 212, 255, 0.6);
    }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--gray-text);
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-buttons .btn {
    margin: 0.5rem;
    padding: 1rem 2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(0, 212, 255, 0.5);
}

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

.btn-outline-light:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
}

.btn-gradient {
    background: var(--gradient-secondary);
    border: none;
    color: white;
}

.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.5);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-arrow {
    width: 30px;
    height: 50px;
    border: 2px solid var(--primary-color);
    border-radius: 25px;
    position: relative;
    animation: bounce 2s infinite;
}

.scroll-arrow::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes scroll {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(0);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

/* ===== ABOUT SECTION ===== */
.avatar-container {
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
}

.avatar-img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-color);
    box-shadow: var(--shadow-glow);
    transition: var(--transition);
}

.avatar-img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 50px rgba(0, 212, 255, 0.6);
}

.avatar-border {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid transparent;
    border-radius: 50%;
    background: var(--gradient-primary);
    z-index: -1;
    animation: rotate 10s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.about-stats .stat-item {
    padding: 1rem;
    border-radius: var(--border-radius);
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: var(--transition);
}

.about-stats .stat-item:hover {
    transform: translateY(-5px);
    background: rgba(0, 212, 255, 0.2);
    box-shadow: var(--shadow-card);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray-text);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== SKILLS SECTION ===== */
.skills-category-title {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
}

.skills-category-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: var(--gradient-primary);
}

.skill-card {
    background: var(--gradient-dark);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: var(--transition);
}

.skill-card:hover::before {
    left: 100%;
}

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

.skill-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: var(--transition);
}

.skill-card:hover .skill-icon {
    transform: scale(1.2);
    color: var(--accent-color);
}

.skill-name {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

.skill-level {
    color: var(--gray-text);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.skill-progress {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 1rem;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 3px;
    width: 0;
    transition: width 2s ease-in-out;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio-grid {
    margin-top: 2rem;
}

.portfolio-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--gradient-dark);
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: var(--transition);
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-content {
    text-align: center;
    padding: 2rem;
}

.portfolio-content h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.portfolio-content p {
    color: var(--gray-text);
    margin-bottom: 1.5rem;
}

.portfolio-links .btn {
    margin: 0.25rem;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
}

/* ===== CONTACT SECTION ===== */
.contact-form {
    background: var(--gradient-dark);
    padding: 3rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 212, 255, 0.1);
    box-shadow: var(--shadow-card);
}

.form-label {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.form-control {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--border-radius);
    color: var(--light-text);
    padding: 1rem;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 212, 255, 0.25);
    color: var(--light-text);
}

.form-control::placeholder {
    color: var(--gray-text);
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--gradient-dark);
    border: 2px solid rgba(0, 212, 255, 0.2);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 1.5rem;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    border-radius: 50%;
    transform: scale(0);
    transition: var(--transition);
    z-index: -1;
}

.social-link:hover::before {
    transform: scale(1);
}

.social-link:hover {
    color: var(--dark-bg);
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ===== FOOTER ===== */
footer {
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    background: var(--darker-bg);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
    }
    
    .avatar-img {
        width: 200px;
        height: 200px;
    }
    
    .contact-form {
        padding: 2rem;
    }
    
    .skill-card {
        margin-bottom: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .navbar-brand {
        font-size: 1.5rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-primary {
    color: var(--primary-color) !important;
}

.bg-dark {
    background: var(--dark-bg) !important;
}

.z-3 {
    z-index: 3;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Smooth scrolling for all browsers */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}