:root {
    --primary-color: #0ea5e9;
    --secondary-color: #ec4899;
    --background-color: #020617;
    --text-color: #ffffff;
    --text-secondary: #94a3b8;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Header Styles */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 1rem 4rem;
    background-color: rgba(2, 6, 23, 0.8);
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s;
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1.2rem;
}

.download-cv {
    background-color: var(--secondary-color);
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: opacity 0.3s;
}

.download-cv:hover {
    opacity: 0.9;
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8rem 4rem 4rem;
    max-width: 1400px;
    margin: 0 auto;
    gap: 4rem;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 50%;
    box-shadow: 0 0 30px var(--primary-color);
    object-fit: cover;
    aspect-ratio: 1 / 1;
}

.hero-content {
    flex: 1;
}

h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.name {
    font-size: 3.5rem;
    font-weight: bold;
}

.highlight {
    color: var(--primary-color);
}

#dynamic-title {
    display: inline-block;
    min-width: 300px; /* Adjust based on your longest title */
    transition: color 0.3s ease;
}

.hero p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.social-links a {
    color: var(--text-color);
    font-size: 1.5rem;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--primary-color);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: bold;
    text-decoration: none;
    transition: opacity 0.3s;
}

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

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

.btn:hover {
    opacity: 0.9;
}

/* Contact Form Styles */
.contact-section {
    padding: 8rem 2rem 4rem;
    background-color: var(--background-color);
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 10px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: bold;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.75rem;
    border-radius: 5px;
    border: 1px solid var(--text-secondary);
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    font-size: 1rem;
}

.form-group select {
    appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23FFFFFF%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 0.7rem top 50%;
    background-size: 0.65rem auto;
}

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

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: normal;
}

.checkbox-group input[type="checkbox"] {
    width: 1.2rem;
    height: 1.2rem;
    border: 1px solid var(--text-secondary);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"]:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-group input[type="checkbox"]:checked::before {
    content: '\2713';
    display: block;
    text-align: center;
    color: var(--text-color);
    font-size: 0.8rem;
    line-height: 1.2rem;
}

.form-message {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 5px;
    background-color: rgba(14, 165, 233, 0.2);
    color: var(--text-color);
}

/* Light mode styles */
body.light-mode {
    --background-color: #ffffff;
    --text-color: #333333;
    --text-secondary: #666666;
}

.light-mode header {
    background-color: rgba(255, 255, 255, 0.8);
}

.light-mode .nav-links a,
.light-mode #theme-toggle,
.light-mode .download-cv {
    color: var(--text-color);
}

.light-mode .hero-image img {
    box-shadow: 0 0 30px rgba(14, 165, 233, 0.3);
}

.light-mode .btn-secondary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.light-mode .social-links a {
    color: var(--text-color);
}

.light-mode .social-links a:hover {
    color: var(--primary-color);
}

.light-mode .contact-form {
    background-color: rgba(0, 0, 0, 0.05);
}

.light-mode .form-group input,
.light-mode .form-group textarea,
.light-mode .form-group select,
.light-mode .checkbox-group input[type="checkbox"] {
    background-color: rgba(0, 0, 0, 0.05);
    border-color: var(--text-secondary);
}

.light-mode .form-group select {
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23333333%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
}

.light-mode .checkbox-group input[type="checkbox"]:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.light-mode .form-message {
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--text-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 6rem 2rem 2rem;
    }

    .hero-content {
        order: 2;
    }

    .hero-image {
        order: 1;
        margin-bottom: 2rem;
    }

    .hero p {
        margin: 0 auto 2rem;
    }

    .social-links, .cta-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    header {
        padding: 1rem;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 4rem 1rem 2rem;
    }

    h1, h2 {
        font-size: 2rem;
    }

    .name {
        font-size: 2.5rem;
    }

    #dynamic-title {
        min-width: 200px;
    }

    .hero-image img {
        max-width: 250px;
    }

    .contact-section {
        padding: 6rem 1rem 2rem;
    }

    .checkbox-group {
        flex-direction: column;
        gap: 0.5rem;
    }
}