@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;700&display=swap');

:root {
    --primary-color: #00a8ff;
    --secondary-color: #e0e0e0;
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --on-primary: #000;
    --on-secondary: #000;
    --on-background: #f1f1f1;
    --on-surface: #e0e0e0;
}

body {
    font-family: 'Open Sans', sans-serif;
    background-color: var(--background-color);
    color: var(--on-background);
    font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
}

.navbar {
    background-color: var(--surface-color) !important;
    border-bottom: 1px solid #333;
}

.navbar-brand, .nav-link {
    color: var(--on-surface) !important;
    transition: color 0.3s ease;
}

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

.hero {
    background: var(--surface-color);
    color: white;
    padding: 6rem 2rem;
    text-align: center;
}

.hero h1 {
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--on-primary);
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn-primary:hover {
    background-color: #007bb5;
    border-color: #007bb5;
    transform: translateY(-2px);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.section {
    padding: 4rem 2rem;
}

.section h2 {
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 3rem;
}

#skills a {
    text-decoration: none;
    color: var(--on-background);
}

#skills .fas {
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

#skills .col-md-3:hover .fas {
    transform: scale(1.2);
}

#cta {
    background-color: var(--surface-color);
}

.card {
    background-color: var(--surface-color);
    border: 1px solid #333;
    color: var(--on-surface);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.card-title {
    color: var(--primary-color);
}

#services .card .fas {
    color: var(--primary-color);
}

.portfolio-item {
    transition: all 0.3s ease-in-out;
}

.portfolio-item.hide {
    display: none;
}

#contact .form-control {
    background-color: var(--surface-color);
    color: var(--on-surface);
    border: 1px solid #333;
}

#contact .form-control:focus {
    background-color: var(--surface-color);
    color: var(--on-surface);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(0, 168, 255, 0.25);
}

#contact .form-select {
    background-color: var(--surface-color);
    color: var(--on-surface);
    border: 1px solid #333;
}

#contact .form-select:focus {
    background-color: var(--surface-color);
    color: var(--on-surface);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(0, 168, 255, 0.25);
}

#contact .form-control::placeholder {
    color: var(--on-surface);
    opacity: 0.5;
}

#contact #map {
    margin-top: 2rem;
}

#contact .contact-info i {
    color: var(--primary-color);
    margin-right: 10px;
}

.footer {
    background-color: var(--surface-color);
    color: var(--on-surface);
    padding: 2rem 1rem;
    text-align: center;
    border-top: 1px solid #333;
}

.footer .fab {
    color: var(--on-surface);
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

.footer .fab:hover {
    color: var(--primary-color);
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--primary-color);
}

.timeline-item {
    margin-bottom: 2rem;
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 5px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--primary-color);
    border: 2px solid var(--background-color);
}

.progress-container p {
    margin-bottom: 0.5rem;
}

.progress {
    height: 20px;
    background-color: var(--surface-color);
    border-radius: 10px;
    margin-bottom: 1rem;
}

.progress-bar {
    background-color: var(--primary-color);
    color: var(--on-primary);
    text-align: center;
    line-height: 20px;
}

a {
    color: var(--primary-color);
}

a:hover {
    color: #007bb5;
}