:root {
    --primary-color: #1e5c85;
    --secondary-color: #11364e;
    --dark-bg: #121212;
    --dark-bg-lighter: #1e1e1e;
    --dark-text: #f5f5f5;
    --border-color: #2d2d2d;
}

/* Base styles */
body.dark-theme {
    background-color: var(--dark-bg);
    color: var(--dark-text);
    font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
    overflow-x: hidden;
}

.custom-container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Navbar styling */
.navbar {
    background-color: rgba(18, 18, 18, 0.9) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    padding: 15px 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--primary-color) !important;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    transition: all 0.3s;
    margin: 0 8px;
    position: relative;
}

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

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

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

/* Hero section */
.hero-section {
    height: 100vh;
    background: linear-gradient(rgba(18, 18, 18, 0.8), rgba(18, 18, 18, 0.9)), url('/img/tausta1.jpg') no-repeat center center;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
}

.hero-section h1 {
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.6);
}

.hero-section p {
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
}

.hero-buttons {
    margin-top: 20px;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: all 0.3s;
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Section styling */
section {
    position: relative;
}

.bg-dark-lighter {
    background-color: var(--dark-bg-lighter);
}

.section-header {
    position: relative;
    margin-bottom: 50px;
}

.section-header h2 {
    font-weight: 700;
    color: var(--dark-text);
    position: relative;
    display: inline-block;
}

.section-divider {
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 20px auto 0;
}

/* About section */
.profile-img-container {
    padding: 10px;
    border: 2px solid var(--border-color);
    border-radius: 15px;
    overflow: hidden;
    background-color: var(--dark-bg-lighter);
}

.profile-img-placeholder {
    background-color: var(--primary-color);
    width: 100%;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
}

.profile-img-placeholder i {
    font-size: 100px;
    color: rgba(255, 255, 255, 0.8);
}

.about-info p {
    margin-bottom: 10px;
    color: #ccc;
}

.about-info strong {
    color: #fff;
}

.social-links .social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--dark-bg-lighter);
    color: var(--primary-color);
    font-size: 18px;
    transition: all 0.3s;
    text-decoration: none;
}

.social-links .social-icon:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

/* Skills section */
.skill-card {
    background-color: var(--dark-bg);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.skill-icon {
    width: 70px;
    height: 70px;
    line-height: 70px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
}

.skill-icon i {
    font-size: 30px;
    line-height: 70px;
}

.skill-card h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
    font-weight: 600;
}

.skill-list {
    list-style-type: none;
    padding-left: 0;
    text-align: left;
    margin-bottom: 0;
}

.skill-list li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.skill-list li:before {
    content: "✓";
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

/* projektit section */
.projektit-item {
    background-color: var(--dark-bg-lighter);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s;
    height: 100%;
}


.projektit-img {
    position: relative;
    overflow: hidden;
}

.project-placeholder {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 50px;
    color: white;
}

.projektit-info {
    padding: 20px;
    text-align: center;
}

.projektit-info h4 {
    font-size: 18px;
    margin-bottom: 10px;
    font-weight: 600;
    color: #fff;
}

.projektit-info p {
    color: #aaa;
    font-size: 14px;
    margin-bottom: 15px;
}

.projektit-links {
    margin-top: 15px;
}

/* Contact section */
.contact-info {
    background-color: var(--dark-bg);
    padding: 25px;
    border-radius: 10px;
    height: 100%;
}

.contact-info h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

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

.form-control {
    background-color: var(--dark-bg);
    border: 1px solid var(--border-color);
    color: var(--dark-text);
    padding: 12px 15px;
    border-radius: 5px;
}

.form-control:focus {
    box-shadow: none;
    border-color: var(--primary-color);
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

.form-control::placeholder {
    color: #777;
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
}

/* Responsive styles */
@media (max-width: 991px) {
    .navbar-dark .navbar-nav {
        padding: 20px 0;
    }
    
    .navbar-dark .navbar-nav .nav-link {
        margin: 8px 0;
    }
    
    .hero-section {
        height: 80vh;
    }
}

@media (max-width: 767px) {
    .profile-img-placeholder {
        height: 250px;
    }
    
    .contact-info {
        margin-bottom: 30px;
    }
}