:root {
    --primary-color: #f0f0f0;
    --secondary-color: #b0b0b0;
    --accent-color: #4dabf7;
    --text-color: #e0e0e0;
    --bg-color: #1e1e1e;
    --container-bg: #2d2d2d;
    --border-color: #404040;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    background-image: url('images/background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-y: scroll;
}

.top-nav {
    display: flex;
    justify-content: flex-end;
    padding: 1.5rem 2rem;
    background: rgba(0, 0, 0, 0.7);
    width: 100%;
}

.top-nav a {
    color: #fff;
    margin-left: 2rem;
    font-weight: bold;
    text-transform: uppercase;
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 1px;
}

.top-nav a:hover {
    color: var(--accent-color);
    text-decoration: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    margin-left: auto; /* Push right if needed */
}
.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #fff;
    border-radius: 3px;
}
.nav-links {
    display: flex;
}


header {
    background-color: var(--bg-color);
    padding: 2rem 0 1rem 0;
    text-align: center;
    border-bottom: none;
}

.logo-container {
    display: inline-block;
    background-color: #ffffff;
    padding: 1rem 2rem;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}

.logo-container-dark {
    display: inline-block;
    background-color: #000000;
    padding: 1.5rem 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.8);
    border: 1px solid var(--border-color);
}

header img {
    max-width: 300px;
    height: auto;
    display: block;
}

main {
    flex: 1;
    max-width: 900px;
    margin: 3rem auto;
    padding: 0 1rem;
    width: 100%;
    display: flex;
    flex-direction: column;
}

.home-main {
    justify-content: center;
    align-items: center;
    margin: 1rem auto;
}

.home-main .logo-container img,
.home-main .logo-container-dark img {
    max-width: 600px;
    max-height: 40vh;
    width: 100%;
    height: auto;
    object-fit: contain;
}

.card {
    background-color: var(--container-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}

h1, h2, h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.2rem;
    margin-top: 1.5rem;
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.btn {
    display: inline-block;
    background-color: #3b82f6;
    color: #fff;
    padding: 1rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s;
    text-align: center;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #2563eb;
    color: #fff;
    text-decoration: none;
}

.btn-small-text {
    display: block;
    font-size: 0.85em;
    font-weight: normal;
    opacity: 0.9;
    margin-top: 4px;
}

.program-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.program-card {
    background-color: var(--container-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    width: 100%;
    max-width: 600px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    margin-bottom: 2rem;
}

.program-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    border: none;
}

.program-card p {
    font-size: 1.1rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.screenshots {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.screenshots img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    flex: 1 1 calc(33.333% - 1rem);
    min-width: 200px;
    object-fit: cover;
    transition: opacity 0.2s;
}

.screenshots img:hover {
    opacity: 0.8;
}

pre {
    background-color: #1a1a1a;
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    color: #dcdcdc;
}

code {
    background-color: #1a1a1a;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: monospace;
    color: #dcdcdc;
}

.license-content {
    background: #1a1a1a;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.95rem;
    color: #cccccc;
    margin-bottom: 2rem;
}

footer {
    background-color: #000000;
    color: var(--secondary-color);
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
    border-top: 1px solid var(--border-color);
}

.home-footer {
    padding: 1rem 0;
}

footer a {
    color: var(--accent-color);
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.9);
    justify-content: center;
    align-items: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    border-radius: 4px;
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

/* Responsive adjustments for smaller screens */
@media (max-width: 768px) {
    .top-nav {
        flex-wrap: wrap;
        padding: 1rem;
    }
    .hamburger {
        display: flex;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        text-align: center;
        margin-top: 1rem;
    }
    .nav-links.active {
        display: flex;
    }
    .top-nav a {
        margin: 0.5rem 0;
        font-size: 0.95rem;
    }

    main {
        margin: 1rem auto;
        padding: 0 0.5rem;
    }

    .card, .program-card {
        padding: 1rem;
    }

    .license-content {
        padding: 1rem;
    }

    .logo-container-dark {
        padding: 1rem 1.5rem;
    }

    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.4rem;
    }
    
    .btn {
        width: 100%;
        box-sizing: border-box;
        padding: 1rem;
    }
}