/* ==================== Variables ==================== */
:root {
    --primary-color: #2196F3;
    --secondary-color: #00BCD4;
    --dark-bg: #0a192f;
    --light-bg: #f8f9fa;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --white: #ffffff;
    --accent: #64ffda;
    --shadow: rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* ==================== Reset & Base ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

section {
    padding: 80px 0;
}

/* ==================== Navigation ==================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h2 {
    font-size: 28px;
    color: var(--primary-color);
    font-weight: 700;
}

.logo .dot {
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition);
}

/* ==================== Hero Section ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.05)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,96C1248,75,1344,53,1392,42.7L1440,32L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    color: var(--white);
}

.greeting {
    font-size: 18px;
    margin-bottom: 10px;
    opacity: 0.9;
}

.hero h1 {
    font-size: 56px;
    margin-bottom: 10px;
    font-weight: 700;
    background: linear-gradient(45deg, #fff, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 28px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.description {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 30px;
    opacity: 0.85;
}

.cta-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
}

.btn {
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-outline {
    border: 2px solid var(--white);
    color: var(--white);
}

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

.social-links {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.social-icon:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-5px);
}

/* Profile Card with Floating Elements */
.profile-card {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.profile-icon {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0.1));
    backdrop-filter: blur(20px);
    border: 3px solid rgba(255,255,255,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
    color: var(--white);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: float 6s ease-in-out infinite;
}

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

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

.float-item {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--white);
    animation: orbit 20s linear infinite;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.float-item.code {
    top: 0;
    left: 50%;
    animation-delay: 0s;
}

.float-item.database {
    top: 50%;
    right: 0;
    animation-delay: -5s;
}

.float-item.laptop {
    bottom: 0;
    left: 50%;
    animation-delay: -10s;
}

.float-item.terminal {
    top: 50%;
    left: 0;
    animation-delay: -15s;
}

.float-item.server {
    top: 15%;
    right: 15%;
    animation-delay: -7s;
}

@keyframes orbit {
    0% { transform: rotate(0deg) translateX(150px) rotate(0deg); }
    100% { transform: rotate(360deg) translateX(150px) rotate(-360deg); }
}

/* ==================== Section Titles ==================== */
.section-title {
    font-size: 42px;
    text-align: center;
    margin-bottom: 15px;
    color: var(--text-dark);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 20px auto 0;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 18px;
    margin-bottom: 50px;
}

/* ==================== About Section ==================== */
.about {
    background: var(--light-bg);
}

.about-text p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin: 40px 0;
}

.info-item {
    background: var(--white);
    padding: 25px;
    border-radius: 15px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    box-shadow: 0 5px 20px var(--shadow);
    transition: var(--transition);
}

.info-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(33, 150, 243, 0.2);
}

.info-item i {
    font-size: 32px;
    color: var(--primary-color);
}

.info-item h4 {
    margin-bottom: 8px;
    color: var(--text-dark);
}

.info-item p {
    margin: 0;
    color: var(--text-light);
    font-size: 15px;
}

.info-item .year,
.info-item .location {
    color: var(--primary-color);
    font-weight: 600;
}

.passions-title {
    font-size: 28px;
    margin: 40px 0 25px;
    color: var(--text-dark);
}

.passions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.passion-item {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 5px 20px var(--shadow);
}

.passion-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(33, 150, 243, 0.3);
}

.passion-item i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.passion-item p {
    margin: 0;
    font-weight: 600;
    color: var(--text-dark);
}

.qualities h3 {
    font-size: 28px;
    margin-bottom: 25px;
    color: var(--text-dark);
}

.qualities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.quality-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 5px 20px var(--shadow);
    transition: var(--transition);
}

.quality-badge:hover {
    transform: scale(1.05);
}

.quality-badge i {
    font-size: 32px;
}

.quality-badge span {
    font-size: 16px;
}

.quality-badge strong {
    display: block;
    font-size: 18px;
    margin-top: 5px;
}

/* ==================== Skills Section ==================== */
.skills {
    background: var(--white);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.skill-category {
    background: var(--light-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px var(--shadow);
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary-color);
}

.category-header i {
    font-size: 28px;
    color: var(--primary-color);
}

.category-header h3 {
    font-size: 20px;
    color: var(--text-dark);
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    background: var(--white);
    padding: 15px;
    border-radius: 10px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.skill-name {
    font-weight: 600;
    color: var(--text-dark);
}

.skill-level {
    color: var(--primary-color);
    font-weight: 700;
}

.skill-bar {
    height: 8px;
    background: #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    transition: width 1s ease;
    animation: progressLoad 2s ease-out;
}

@keyframes progressLoad {
    0% { width: 0; }
}

/* Tech Stack Icons */
.tech-stack {
    margin-top: 60px;
    text-align: center;
}

.tech-stack h3 {
    font-size: 28px;
    margin-bottom: 30px;
    color: var(--text-dark);
}

.tech-icons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.tech-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 25px;
    background: var(--light-bg);
    border-radius: 15px;
    transition: var(--transition);
    min-width: 120px;
    box-shadow: 0 5px 15px var(--shadow);
}

.tech-icon:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 15px 40px rgba(33, 150, 243, 0.3);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.tech-icon i {
    font-size: 48px;
    color: var(--primary-color);
    transition: var(--transition);
}

.tech-icon:hover i {
    color: var(--white);
}

.tech-icon span {
    font-weight: 600;
    font-size: 14px;
}

/* ==================== Projects Section ==================== */
.projects {
    background: var(--light-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--white);
    padding: 35px;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(33, 150, 243, 0.3);
}

.project-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.project-icon i {
    font-size: 36px;
    color: var(--white);
}

.project-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.project-card p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 20px;
}

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

.tag {
    padding: 6px 15px;
    background: var(--light-bg);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

/* ==================== Contact Section ==================== */
.contact {
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    margin-top: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 25px;
    background: var(--light-bg);
    border-radius: 15px;
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px var(--shadow);
}

.contact-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 20px;
    color: var(--white);
}

.contact-details h4 {
    margin-bottom: 8px;
    color: var(--text-dark);
}

.contact-details p,
.contact-details a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

.contact-details a:hover {
    color: var(--primary-color);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--light-bg);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group label {
    position: absolute;
    left: 15px;
    top: 15px;
    color: var(--text-light);
    pointer-events: none;
    transition: var(--transition);
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 10px;
    font-size: 12px;
    background: var(--white);
    padding: 0 5px;
    color: var(--primary-color);
}

.contact-form button {
    cursor: pointer;
    border: none;
    font-size: 16px;
}

/* ==================== Footer ==================== */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: var(--accent);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a,
.footer-links li {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* ==================== Responsive ==================== */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero h1 {
        font-size: 40px;
    }

    .profile-card {
        width: 300px;
        height: 300px;
    }

    .profile-icon {
        width: 200px;
        height: 200px;
        font-size: 80px;
    }

    .float-item {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 32px;
    }

    .cta-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 32px;
    }

    .tagline {
        font-size: 20px;
    }

    .profile-card {
        width: 250px;
        height: 250px;
    }

    .skills-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
}