/* ===== VARIABLES ===== */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --secondary: #0e7c7b;
    --accent: #db2777;
    --dark: #0f172a;
    --light: #f8fafc;
    --gray: #475569;
    --gray-light: #94a3b8;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --glass-bg: rgba(255, 255, 255, 0.2);
    --glass-border: rgba(255, 255, 255, 0.3);
    --card-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.2);
    --text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --primary: #818cf8;
    --primary-dark: #6366f1;
    --primary-light: #a5b4fc;
    --secondary: #14b8a6;
    --light: #0f172a;
    --dark: #f1f5f9;
    --gray: #cbd5e1;
    --gray-light: #64748b;
    --glass-bg: rgba(0, 0, 0, 0.3);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.7;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
    font-weight: 400;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== PARTICLES BACKGROUND ===== */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* ===== THEME TOGGLE ===== */
.theme-toggle {
    position: fixed;
    top: 100px;
    right: 20px;
    z-index: 1000;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* ===== HEADER ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
    text-shadow: var(--text-shadow);
}

.logo span {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
    position: relative;
    padding-bottom: 5px;
    text-shadow: var(--text-shadow);
}

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

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

.menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 100px 0;
}

.hero-content {
    max-width: 800px;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 40px;
    padding: 3rem;
    box-shadow: var(--card-shadow);
}

.hero-greeting {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 1rem;
    display: block;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-name {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    text-shadow: var(--text-shadow);
}

.hero-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 1.5rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    color: var(--dark);
    font-weight: 600;
}

.dynamic-text {
    color: var(--primary);
    font-weight: 700;
    position: relative;
}

.dynamic-text::after {
    content: '|';
    animation: blink 1s infinite;
}

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

.hero-description {
    font-size: 1.2rem;
    color: var(--dark);
    margin-bottom: 2rem;
    max-width: 600px;
    font-weight: 500;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 14px 36px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    box-shadow: var(--card-shadow);
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 10px 20px -5px var(--primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px -5px var(--primary);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--dark);
    backdrop-filter: blur(4px);
}

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

/* ===== LIVE STATS ===== */
.live-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.stat-card {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1.5rem 2rem;
    text-align: center;
    min-width: 150px;
    transition: var(--transition);
    box-shadow: var(--card-shadow);
}

[data-theme="dark"] .stat-card {
    background: rgba(0, 0, 0, 0.3);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow);
}

.stat-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    display: block;
}

.stat-label {
    color: var(--dark);
    font-size: 0.9rem;
    opacity: 0.8;
    font-weight: 500;
}

/* ===== SCROLL INDICATOR ===== */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--dark);
    animation: bounce 2s infinite;
    background: var(--glass-bg);
    backdrop-filter: blur(4px);
    padding: 0.5rem 1rem;
    border-radius: 30px;
    border: 1px solid var(--glass-border);
}

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

/* ===== SECTION STYLES ===== */
section {
    padding: 80px 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
    color: var(--dark);
    text-shadow: var(--text-shadow);
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--primary);
    border-radius: 2px;
}

/* ===== ABOUT SECTION ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.about-content, .personal-card {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    padding: 2.5rem;
    box-shadow: var(--card-shadow);
}

.about-text {
    font-size: 1.1rem;
    color: var(--dark);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.tech-stack h3 {
    margin-bottom: 1rem;
    color: var(--dark);
    font-size: 1.3rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tech-tags span {
    background: rgba(79, 70, 229, 0.15);
    backdrop-filter: blur(4px);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1.2rem;
    border-radius: 30px;
    font-size: 0.9rem;
    color: var(--dark);
    transition: var(--transition);
    font-weight: 500;
}

.tech-tags span:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.05);
}

/* ===== PERSONAL INFO CARD ===== */
.personal-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark);
    font-size: 1.5rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--dark);
    font-size: 1.1rem;
    font-weight: 500;
}

.info-item i {
    color: var(--primary);
    width: 24px;
    font-size: 1.2rem;
}

/* ===== PROJECTS SECTION ===== */
.projects-filter {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.filter-btn {
    padding: 8px 20px;
    border-radius: 30px;
    background: var(--glass-bg);
    backdrop-filter: blur(4px);
    border: 1px solid var(--glass-border);
    color: var(--dark);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

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

.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--card-shadow);
}

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

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

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

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--dark);
    font-weight: 700;
}

.project-description {
    color: var(--dark);
    margin-bottom: 1rem;
    font-size: 0.95rem;
    opacity: 0.9;
    font-weight: 500;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-badge {
    background: rgba(79, 70, 229, 0.2);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 600;
}

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

.project-link {
    color: var(--dark);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: var(--transition);
    font-weight: 600;
}

.project-link:hover {
    color: var(--primary);
}

/* ===== FUN FACT SECTION ===== */
.fun-fact-section {
    padding: 40px 0;
}

.fun-fact-card {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    padding: 3rem;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--card-shadow);
}

.fun-fact-card i {
    font-size: 3rem;
    color: var(--warning);
    margin-bottom: 1rem;
}

.fun-fact-card h3 {
    margin-bottom: 1rem;
    color: var(--dark);
    font-size: 1.8rem;
}

.fun-fact-card p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--dark);
    font-weight: 500;
}

/* ===== BLOG SECTION ===== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 1.5rem;
    transition: var(--transition);
    box-shadow: var(--card-shadow);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow);
}

.blog-date {
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.blog-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--dark);
    font-weight: 700;
}

.blog-summary {
    color: var(--dark);
    margin-bottom: 1rem;
    font-size: 0.95rem;
    opacity: 0.9;
    font-weight: 500;
}

.blog-link {
    color: var(--primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

/* ===== CONTACT SECTION ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info, .contact-form {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    padding: 2.5rem;
    box-shadow: var(--card-shadow);
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.contact-info p {
    color: var(--dark);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    opacity: 0.9;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--dark);
    font-size: 1.1rem;
    font-weight: 500;
}

.contact-item i {
    color: var(--primary);
    font-size: 1.2rem;
    width: 24px;
}

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

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--dark);
    transition: var(--transition);
    font-size: 1.2rem;
}

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

/* ===== CONTACT FORM ===== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    color: var(--dark);
    transition: var(--transition);
    font-weight: 500;
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group textarea {
    background: rgba(0, 0, 0, 0.3);
    color: var(--dark);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray);
    opacity: 0.7;
}

.contact-status {
    text-align: center;
    margin-top: 1rem;
    font-size: 1rem;
    min-height: 2rem;
    font-weight: 600;
}

/* ===== FOOTER ===== */
footer {
    text-align: center;
    padding: 2rem 0;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--glass-border);
    color: var(--dark);
    font-weight: 500;
}

footer i {
    color: var(--error);
}

/* ===== LOADER ===== */
.loader {
    text-align: center;
    padding: 3rem;
    color: var(--primary);
    font-size: 1.2rem;
    font-weight: 600;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--glass-bg);
        backdrop-filter: blur(10px);
        flex-direction: column;
        align-items: center;
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--glass-border);
    }
    
    .nav-links.show {
        display: flex;
    }
    
    .menu-btn {
        display: block;
    }
    
    .hero-content {
        padding: 2rem;
    }
    
    .hero-title {
        flex-direction: column;
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .live-stats {
        justify-content: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .stat-card {
        width: 100%;
    }
    
    .hero-content, .about-content, .personal-card, .contact-info, .contact-form {
        padding: 1.5rem;
    }
}