* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

:root {
    --bg-color: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.7);
    --text-color: #0f172a;
    --text-light: #64748b;
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --border: rgba(15, 23, 42, 0.08);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    --glass-blur: blur(14px);
    --transition: all .3s cubic-bezier(0.4, 0, 0.2, 1);
}

body.dark-theme {
    --bg-color: #0a0a0c;
    --card-bg: rgba(18, 18, 22, 0.75);
    --text-color: #f8fafc;
    --text-light: #a1a1aa;
    --primary: #3b82f6;
    --primary-hover: #60a5fa;
    --border: rgba(255, 255, 255, 0.06);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    width: min(1150px, 90%);
    margin: auto;
}

.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header span {
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.section-header h2 {
    font-size: 2.2rem;
    margin-top: 8px;
    font-weight: 700;
}

.glass {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 10px;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.primary-btn {
    background: var(--primary);
    color: #fff;
}

.primary-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.secondary-btn {
    border: 1px solid var(--border);
    background: var(--card-bg);
    color: var(--text-color);
}

.secondary-btn:hover {
    background: var(--text-color);
    color: var(--bg-color);
}

.loader {
    position: fixed;
    inset: 0;
    background: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.loader-stage {
    position: relative;
    width: 320px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.document-track {
    display: flex;
    gap: 45px;
    position: absolute;
    white-space: nowrap;
    animation: slideDocuments 3.5s linear infinite;
}

.doc-item {
    width: 48px;
    height: 64px;
    background: var(--card-bg);
    border: 1.5px solid var(--border);
    border-radius: 6px;
    position: relative;
    padding: 10px 6px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    flex-shrink: 0;
}

.doc-item::before {
    content: '';
    position: absolute;
    top: -1px;
    right: -1px;
    width: 14px;
    height: 14px;
    background: var(--bg-color);
    border-bottom-left-radius: 4px;
    border-left: 1.5px solid var(--border);
    border-bottom: 1.5px solid var(--border);
}

.doc-line {
    height: 3px;
    background: var(--text-light);
    opacity: 0.4;
    border-radius: 2px;
}

.doc-line.short {
    width: 50%;
}

.doc-line.mid {
    width: 75%;
}

.doc-line.long {
    width: 100%;
}

.scanner-lens {
    position: absolute;
    width: 76px;
    height: 76px;
    border: 5px solid var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 25px rgba(37, 99, 235, 0.4), inset 0 0 15px rgba(37, 99, 235, 0.2);
    z-index: 5;
    background: rgba(37, 99, 235, 0.03);
    animation: lensPulse 1.8s ease-in-out infinite;
}

.scanner-lens::after {
    content: '';
    position: absolute;
    bottom: -14px;
    right: -14px;
    width: 6px;
    height: 24px;
    background: var(--primary);
    transform: rotate(-45deg);
    border-radius: 3px;
}

@keyframes slideDocuments {
    0% {
        transform: translateX(120px);
    }
    100% {
        transform: translateX(-250px);
    }
}

@keyframes lensPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 25px rgba(37, 99, 235, 0.4);
    }
    50% {
        transform: scale(1.06);
        box-shadow: 0 0 35px rgba(37, 99, 235, 0.6);
    }
}

#backToTop {
    position: fixed;
    right: 25px;
    bottom: 25px;
    width: 45px;
    height: 45px;
    border: none;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
    display: none;
    z-index: 999;
    box-shadow: var(--shadow);
    align-items: center;
    justify-content: center;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-color);
}

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

.nav-links {
    display: flex;
    gap: 28px;
}

.nav-link {
    color: var(--text-color);
    position: relative;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 5px 0;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle {
    width: 45px;
    height: 45px;
    border: 1px solid var(--border);
    border-radius: 50%;
    cursor: pointer;
    background: var(--card-bg);
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    z-index: 1005;
}

.hamburger span {
    width: 26px;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
}

.hamburger.toggle span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.toggle span:nth-child(2) {
    opacity: 0;
}

.hamburger.toggle span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 100px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.hero-subtitle {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.hero h1 {
    font-size: 3.5rem;
    margin: 10px 0;
    font-weight: 800;
}

.hero h1 span {
    color: var(--primary);
}

.hero h3 {
    margin-bottom: 15px;
    color: var(--text-light);
    font-weight: 500;
    min-height: 28px;
}

.hero p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 25px;
    max-width: 550px;
}

.hero-buttons, 
.social-icons {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-bottom: 25px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--border);
    color: var(--text-color);
    transition: var(--transition);
}

.social-icons a:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

.profile-card {
    border-radius: 20px;
    padding: 12px;
    overflow: hidden; 
    transition: var(--transition);
}

.profile-card img {
    border-radius: 14px;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), filter 0.5s ease;
    filter: brightness(0.95);
}
.profile-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.profile-card:hover img {
    transform: scale(1.04);
    filter: brightness(1.05); /* Soft illumination on hover */
}

.hero-bg span {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.4;
}

.hero-bg span:nth-child(1) {
    width: 300px;
    height: 300px;
    background: var(--primary);
    top: 15%;
    left: -5%;
}

.hero-bg span:nth-child(2) {
    width: 250px;
    height: 250px;
    background: #7c3aed;
    bottom: 15%;
    right: 5%;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.about-text p {
    color: var(--text-light);
    line-height: 1.7;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.stat-card {
    padding: 25px 15px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
}

.stat-card h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-card p {
    font-size: 0.85rem;
    color: var(--text-light);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.skill-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: var(--transition);
}

.skill-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.skill-card i {
    font-size: 2rem;
    color: var(--primary);
}

.skill-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.project-card {
    border-radius: 16px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-content {
    padding: 20px;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.project-content p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.tech-stack span {
    padding: 4px 10px;
    border-radius: 20px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 500;
}

.project-buttons {
    display: flex;
    gap: 10px;
}

.project-buttons a {
    flex: 1;
    text-align: center;
    padding: 10px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    background: var(--border);
    color: var(--text-color);
    transition: var(--transition);
}

.project-buttons a:hover {
    background: var(--primary);
    color: #fff;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-left: 70px;
    margin-bottom: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 26px;
    top: 28px;
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
}

.timeline-content {
    padding: 20px;
    border-radius: 12px;
}

.timeline-content span {
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
}

.contact-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 30px;
}

.contact-form {
    padding: 30px;
    border-radius: 16px;
}

.contact-form input, 
.contact-form textarea {
    width: 100%;
    padding: 14px;
    margin-bottom: 15px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-color);
    outline: none;
    font-family: inherit;
}

.contact-form textarea {
    height: 140px;
    resize: none;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.info-box {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 18px;
    border-radius: 12px;
    background: var(--card-bg);
    border: 1px solid var(--border);
}

.info-box i {
    font-size: 1.3rem;
    color: var(--primary);
}

.footer {
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--text-light);
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all .6s ease;
}

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

@media (max-width: 992px) {
    .hero-container, 
    .about-content, 
    .contact-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .hero {
        text-align: center;
    }
    
    .hero p {
        margin-inline: auto;
    }
    
    .hero-buttons, 
    .social-icons {
        justify-content: center;
    }
    
    .hero-image {
        order: -1;
        max-width: 320px;
        margin: auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        background: var(--card-bg);
        backdrop-filter: var(--glass-blur);
        border-left: 1px solid var(--border);
        padding: 100px 30px 30px 30px;
        gap: 30px;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .nav-links.show {
        right: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-link::after {
        bottom: -2px;
    }
    
    .hero h1 {
        font-size: 2.4rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}