* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --dark-blue: #0a192f;
    --medium-blue: #112240;
    --light-blue: #233554;
    --accent: #64ffda;
    --text-light: #ccd6f6;
    --text-dark: #8892b0;
}

body {
    background-color: var(--dark-blue);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Header */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background-color: rgba(10, 25, 47, 0.9);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

.nav-links a.active {
    color: var(--accent);
}

.nav-links a:hover {
    color: var(--accent);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--medium-blue) 100%);
    z-index: -2;
}

.hero-content {
    max-width: 800px;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

.hero h2 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 30px;
    opacity: 0;
    animation: fadeInUp 1s ease 0.3s forwards;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: var(--text-dark);
    opacity: 0;
    animation: fadeInUp 1s ease 0.6s forwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    opacity: 0;
    animation: fadeInUp 1s ease 0.9s forwards;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    background-color: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn:hover {
    background-color: rgba(100, 255, 218, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-outline {
    background-color: transparent;
}

.btn-full {
    background-color: var(--accent);
    color: var(--dark-blue);
    border: none;
}

.btn-full:hover {
    background-color: rgba(100, 255, 218, 0.9);
}

/* Section */
.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -10px;
    left: 0;
    background-color: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.section-title:hover::after {
    transform: scaleX(1);
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--medium-blue);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 3rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-dark);
}

/* About Page */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: start;
}

.about-text h3 {
    font-size: 1.5rem;
    margin: 30px 0 15px;
    color: var(--accent);
}

.about-text p {
    margin-bottom: 20px;
    color: var(--text-dark);
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin: 20px 0;
}

.skill {
    background-color: var(--light-blue);
    padding: 10px 20px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.skill:hover {
    background-color: var(--accent);
    color: var(--dark-blue);
    transform: translateY(-5px);
}

.experience {
    margin-top: 20px;
}

.exp-item {
    background-color: var(--medium-blue);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 3px solid var(--accent);
    transition: all 0.3s ease;
}

.exp-item:hover {
    transform: translateX(10px);
}

.exp-item h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.exp-date {
    color: var(--accent);
    font-size: 0.9rem;
    display: block;
    margin-bottom: 10px;
}

.exp-item p {
    color: var(--text-dark);
}

.about-image {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.5s ease;
}

.about-image:hover {
    transform: scale(1.03);
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--light-blue), var(--accent));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.image-placeholder i {
    font-size: 4rem;
    margin-bottom: 15px;
}

/* Contact Page */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background-color: var(--medium-blue);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background-color: var(--light-blue);
    transform: translateX(10px);
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--accent);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    color: var(--text-dark);
    font-weight: 500;
}

.form-control {
    padding: 12px 15px;
    background-color: var(--medium-blue);
    border: 1px solid var(--light-blue);
    border-radius: 4px;
    color: var(--text-light);
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(100, 255, 218, 0.2);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* Footer */
footer {
    background-color: var(--medium-blue);
    padding: 50px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--light-blue);
    border-radius: 50%;
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: var(--accent);
    color: var(--dark-blue);
    transform: translateY(-5px);
}

.copyright {
    text-align: center;
    color: var(--text-dark);
    padding-top: 20px;
    border-top: 1px solid var(--light-blue);
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}