/* Purdue University Brand Colors */
:root {
    --campus-gold: #C28E0E;
    --athletic-gold: #CEB888;
    --purdue-black: #000000;
    --gray: #9D968D;
    --dark-gray: #373A36;
    --white: #FFFFFF;
    --light-bg: #F5F5F5;
    --border-color: #D3D3D3;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--purdue-black);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--purdue-black) 0%, var(--dark-gray) 100%);
    color: var(--white);
    padding: 2.5rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--athletic-gold);
    font-weight: 300;
}

/* Main Content */
main {
    padding: 2rem 0;
    min-height: calc(100vh - 300px);
}

/* Intro Section */
.intro-section {
    margin-bottom: 3rem;
}

.info-box {
    background-color: var(--light-bg);
    border-left: 5px solid var(--campus-gold);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.info-box h2 {
    color: var(--purdue-black);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.info-box p {
    color: var(--dark-gray);
    font-size: 1.05rem;
    margin-bottom: 1rem;
}

.important-notes {
    margin-top: 1.5rem;
    background-color: var(--white);
    padding: 1.25rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.important-notes h3 {
    color: var(--campus-gold);
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.important-notes ul {
    list-style: none;
    padding-left: 0;
}

.important-notes li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--dark-gray);
}

.important-notes li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--campus-gold);
    font-weight: bold;
}

.important-notes strong {
    color: var(--purdue-black);
}

/* Filters Section */
.filters-section {
    background-color: var(--white);
    border: 2px solid var(--athletic-gold);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.filters-section h2 {
    color: var(--purdue-black);
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}

.filters-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.filter-group select {
    padding: 0.75rem;
    border: 2px solid var(--gray);
    border-radius: 5px;
    font-size: 1rem;
    background-color: var(--white);
    color: var(--purdue-black);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-group select:hover {
    border-color: var(--campus-gold);
}

.filter-group select:focus {
    outline: none;
    border-color: var(--campus-gold);
    box-shadow: 0 0 0 3px rgba(194, 142, 14, 0.1);
}

.btn-secondary {
    padding: 0.75rem 1.5rem;
    background-color: var(--dark-gray);
    color: var(--white);
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: var(--purdue-black);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Use Cases Section */
.use-cases-section .section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.use-cases-section h2 {
    color: var(--purdue-black);
    font-size: 1.8rem;
    margin-bottom: 0;
}

#results-count {
    font-size: 1.2rem;
    color: var(--gray);
    font-weight: 400;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Use Case Cards */
.use-case-card {
    background-color: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.use-case-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--campus-gold) 0%, var(--athletic-gold) 100%);
}

.use-case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    border-color: var(--campus-gold);
}

.use-case-card h3 {
    color: var(--purdue-black);
    font-size: 1.4rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.card-meta {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-tool {
    background-color: var(--campus-gold);
    color: var(--white);
}

.badge-user {
    background-color: var(--athletic-gold);
    color: var(--purdue-black);
}

.card-purpose {
    color: var(--dark-gray);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-link {
    color: var(--campus-gold);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.card-link::after {
    content: "→";
    transition: transform 0.3s ease;
}

.card-link:hover {
    color: var(--purdue-black);
}

.card-link:hover::after {
    transform: translateX(5px);
}

/* No Results */
.no-results {
    text-align: center;
    padding: 3rem;
    background-color: var(--light-bg);
    border-radius: 8px;
    color: var(--gray);
    font-size: 1.1rem;
}

/* Footer */
footer {
    background-color: var(--purdue-black);
    color: var(--white);
    padding: 2rem 0;
    margin-top: 4rem;
    text-align: center;
}

footer p {
    color: var(--gray);
    margin: 0.5rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .filters-container {
        grid-template-columns: 1fr;
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .use-cases-section .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .info-box h2 {
        font-size: 1.5rem;
    }
}

/* Detail Page Styles */
.detail-header {
    background: linear-gradient(135deg, var(--purdue-black) 0%, var(--dark-gray) 100%);
    color: var(--white);
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.detail-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--athletic-gold);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.back-link:hover {
    color: var(--white);
    transform: translateX(-5px);
}

.detail-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.submitted-by {
    color: var(--gray);
    font-size: 0.95rem;
    font-style: italic;
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

.timestamps {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--light-bg);
    color: var(--gray);
    font-size: 0.9rem;
}

.timestamps p {
    margin: 0.5rem 0;
}

.timestamps strong {
    color: var(--dark-gray);
    font-weight: 600;
}

.detail-content {
    background-color: var(--white);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.section-block {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--light-bg);
}

.section-block:last-child {
    border-bottom: none;
}

.section-block h2 {
    color: var(--campus-gold);
    font-size: 1.6rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--athletic-gold);
}

.section-block p,
.section-block pre {
    color: var(--dark-gray);
    font-size: 1.05rem;
    line-height: 1.7;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.section-block a {
    color: var(--campus-gold);
    word-break: break-all;
}

.section-block a:hover {
    color: var(--purdue-black);
    text-decoration: underline;
}

/* Prompt Block Styling */
.prompt-block {
    background-color: var(--light-bg);
    border-left: 4px solid var(--campus-gold);
    padding: 1.5rem;
    border-radius: 5px;
    margin-top: 1rem;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    overflow-x: auto;
}

/* Placeholder Styling */
.placeholder {
    color: var(--gray);
    font-style: italic;
}

/* Screenshot Styling */
.screenshot {
    margin: 1.5rem 0;
}

.screenshot h3 {
    color: var(--campus-gold);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.screenshot img {
    max-width: 100%;
    height: auto;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}