.project-detail {
    max-width: 900px;
    margin: 100px auto 0;
    padding: 40px;
    min-height: calc(100vh - 100px);
}

.project-header {
    text-align: center;
    margin-bottom: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.project-header h1 {
    font-size: 48px;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.subtitle {
    font-size: 20px;
    color: #aaa;
    margin-bottom: 30px;
    font-style: italic;
}

.project-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.btn-primary,
.btn-secondary {
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 4px;
    font-size: 16px;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background-color: #4a9eff;
    color: #fff;
}

.btn-primary:hover {
    background-color: #6bb3ff;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.project-detail section {
    margin-bottom: 50px;
}

.project-detail h2 {
    font-size: 36px;
    margin-bottom: 25px;
    letter-spacing: 2px;
    color: #fff;
}

.project-detail h3 {
    font-size: 24px;
    margin-top: 30px;
    margin-bottom: 15px;
    letter-spacing: 1px;
    color: #fff;
}

.project-detail p {
    color: #ccc;
    line-height: 1.8;
    margin-bottom: 15px;
    font-size: 16px;
}

.project-detail ul {
    color: #ccc;
    line-height: 1.8;
    margin-left: 20px;
    margin-bottom: 20px;
}

.project-detail li {
    margin-bottom: 10px;
}

.key-points {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 25px 25px 25px 45px;
    border-radius: 8px;
    border-left: 4px solid #4a9eff;
}

.key-points li {
    margin-bottom: 15px;
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 25px;
}

.tech-item {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.tech-item strong {
    color: #4a9eff;
    display: block;
    margin-bottom: 8px;
}

.principle,
.feature,
.ux-decision {
    background-color: rgba(255, 255, 255, 0.03);
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 25px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.principle h3,
.feature h3,
.ux-decision h3 {
    margin-top: 0;
    color: #4a9eff;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
    background-color: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    overflow: hidden;
}

.results-table thead {
    background-color: rgba(74, 158, 255, 0.2);
}

.results-table th,
.results-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.results-table th {
    color: #4a9eff;
    font-weight: bold;
    letter-spacing: 1px;
}

.results-table td {
    color: #ccc;
}

.results-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.reference {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #4a9eff;
    font-style: italic;
    color: #aaa;
}

.project-footer {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #888;
}

.project-footer p {
    color: #888;
    margin-bottom: 10px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .project-detail {
        padding: 20px;
    }

    .project-header h1 {
        font-size: 32px;
    }

    .subtitle {
        font-size: 16px;
    }

    .project-detail h2 {
        font-size: 28px;
    }

    .project-detail h3 {
        font-size: 20px;
    }

    .project-links {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .results-table {
        font-size: 14px;
    }

    .results-table th,
    .results-table td {
        padding: 10px;
    }
}