:root {
    --primary-blue: #0a192f;
    --secondary-blue: #112240;
    --accent-blue: #64ffda; /* Teal accent for contrast */
    --bright-blue: #007bff;
    --text-main: #e6f1ff;
    --text-dim: #8892b0;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
    --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background-color: var(--primary-blue);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Background Animation */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, #112240 0%, #0a192f 100%);
    z-index: -1;
}

header {
    padding: 2rem 10%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--glass-border);
}

header h1 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--accent-blue);
    text-transform: uppercase;
}

.admin-link {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent-blue);
    border-radius: 4px;
    transition: var(--transition);
}

.admin-link:hover {
    background: rgba(100, 255, 218, 0.1);
    color: var(--accent-blue);
}

main {
    flex: 1;
    padding: 3rem 10%;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    animation: fadeInUp 0.8s ease-out;
}

/* Project Card */
.project-card {
    background: var(--secondary-blue);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-blue);
    box-shadow: 0 20px 40px -15px rgba(2, 12, 27, 0.9);
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

.project-card:hover .project-image {
    opacity: 0.8;
}

.project-info {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-info h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.btn-open {
    display: inline-block;
    width: 100%;
    padding: 0.8rem;
    background: transparent;
    border: 1px solid var(--bright-blue);
    color: var(--bright-blue);
    text-align: center;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    margin-top: auto;
    transition: var(--transition);
}

.btn-open:hover {
    background: var(--bright-blue);
    color: white;
}

/* Footer */
footer {
    padding: 3rem 10%;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    background: var(--secondary-blue);
    color: var(--text-dim);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.footer-links a {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    filter: brightness(1.2);
    text-decoration: underline;
}

/* Login/Admin Form */
.form-container {
    max-width: 450px;
    margin: 4rem auto;
    background: var(--secondary-blue);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dim);
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    background: var(--primary-blue);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    color: white;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus {
    border-color: var(--accent-blue);
}

.btn-primary {
    width: 100%;
    padding: 0.8rem;
    background: var(--bright-blue);
    border: none;
    color: white;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background: #0056b3;
}

/* Admin Dashboard */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    background: var(--secondary-blue);
    border-radius: 8px;
    overflow: hidden;
}

.admin-table th, .admin-table td {
    padding: 1.2rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.admin-table th {
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent-blue);
    font-weight: 600;
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.btn-delete {
    background: #ff4d4d;
    color: white;
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-delete:hover {
    background: #cc0000;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    header, main, footer {
        padding: 1.5rem 5%;
    }
    .footer-links {
        flex-direction: column;
        gap: 0.5rem;
    }
}