:root {
    /* OWASP BLT Official Colors */
    --primary-color: #142a3a;        /* OWASP Blue - dark blue for backgrounds and headings */
    --secondary-color: #dc3545;      /* Red for attention and important elements */
    --accent-color: #f5f03e;         /* Yellow highlight for accents */
    --success-color: #28a745;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --cool-grey: #344851;            /* Cool grey for secondary sections */
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #212529;
    --border-color: #dee2e6;
    --shadow: 0 2px 12px rgba(20, 42, 58, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--cool-grey) 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

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

header {
    text-align: center;
    padding: 60px 20px;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    border-top: 4px solid var(--accent-color);
}

.owasp-badge {
    display: inline-block;
    background: var(--primary-color);
    padding: 8px 20px;
    border-radius: 25px;
    margin-bottom: 20px;
    border: 2px solid var(--accent-color);
}

.badge-text {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 1.1em;
    letter-spacing: 1px;
}

.badge-project {
    color: white;
    font-weight: 600;
    font-size: 0.9em;
    margin-left: 8px;
}

header h1 {
    font-size: 3em;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}

.subtitle {
    font-size: 1.5em;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 10px;
}

.description {
    font-size: 1.1em;
    color: #7f8c8d;
}

main {
    margin-bottom: 40px;
}

.input-section {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#repoUrl {
    flex: 1;
    padding: 15px;
    font-size: 1em;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    outline: none;
    transition: border-color 0.3s;
}

#repoUrl:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(245, 240, 62, 0.2);
}

#checkBtn {
    padding: 15px 30px;
    font-size: 1em;
    font-weight: 600;
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s, transform 0.1s, box-shadow 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 180px;
    justify-content: center;
    box-shadow: 0 4px 6px rgba(220, 53, 69, 0.3);
}

#checkBtn:hover:not(:disabled) {
    background: #bd2130;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(220, 53, 69, 0.4);
}

#checkBtn:active:not(:disabled) {
    transform: translateY(0);
}

#checkBtn:disabled {
    background: #95a5a6;
    cursor: not-allowed;
}

.spinner {
    border: 3px solid rgba(255,255,255,0.3);
    border-top: 3px solid white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.token-section {
    margin-top: 20px;
}

.token-section details {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
}

.token-section summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--primary-color);
    user-select: none;
}

.token-section summary:hover {
    color: var(--secondary-color);
}

#githubToken {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    font-size: 0.95em;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
}

.help-text {
    font-size: 0.9em;
    color: #7f8c8d;
    margin-top: 10px;
}

.help-text a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
}

.help-text a:hover {
    text-decoration: underline;
}

.error-message {
    background: #ffebee;
    border-left: 4px solid var(--secondary-color);
    padding: 15px;
    border-radius: 8px;
    color: #c62828;
    margin-top: 20px;
}

.hidden {
    display: none !important;
}

.results {
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.score-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.score-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.score-header h2 {
    color: var(--primary-color);
    font-size: 2em;
}

.repo-info {
    display: flex;
    gap: 15px;
    align-items: center;
    font-size: 0.95em;
    color: #7f8c8d;
}

.repo-info a {
    color: var(--info-color);
    text-decoration: none;
    font-weight: 600;
}

.repo-info a:hover {
    text-decoration: underline;
}

.score-summary {
    display: flex;
    gap: 40px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.score-circle {
    position: relative;
    width: 180px;
    height: 180px;
}

.score-circle svg {
    transform: rotate(-90deg);
    width: 100%;
    height: 100%;
}

.score-bg {
    fill: none;
    stroke: #ecf0f1;
    stroke-width: 8;
}

.score-fg {
    fill: none;
    stroke: var(--success-color);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 339.292;
    stroke-dashoffset: 339.292;
    transition: stroke-dashoffset 1s ease, stroke 0.5s ease;
}

.score-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.score-value {
    font-size: 3em;
    font-weight: bold;
    color: var(--primary-color);
}

.score-label {
    font-size: 1.2em;
    color: #7f8c8d;
}

.score-details {
    flex: 1;
    min-width: 250px;
}

.score-status {
    font-size: 1.8em;
    font-weight: bold;
    margin-bottom: 15px;
}

.score-points {
    font-size: 1.2em;
    color: #7f8c8d;
}

.categories {
    display: grid;
    gap: 20px;
}

.category {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.2s;
}

.category:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.category-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--cool-grey) 100%);
    color: white;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    border-left: 4px solid var(--accent-color);
}

.category-header:hover {
    background: linear-gradient(135deg, var(--cool-grey) 0%, var(--primary-color) 100%);
}

.category-title {
    font-size: 1.3em;
    font-weight: 600;
}

.category-score {
    font-size: 1.1em;
    font-weight: bold;
    background: rgba(255,255,255,0.2);
    padding: 8px 16px;
    border-radius: 20px;
}

.category-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.category.expanded .category-content {
    max-height: 2000px;
}

.category.expanded .category-header::after {
    content: '▼';
    margin-left: 10px;
}

.category-header::after {
    content: '▶';
    margin-left: 10px;
}

.checks-list {
    padding: 20px;
}

.check-item {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.check-item:last-child {
    border-bottom: none;
}

.check-icon {
    font-size: 1.5em;
    flex-shrink: 0;
}

.check-icon.passed {
    color: var(--success-color);
}

.check-icon.failed {
    color: var(--secondary-color);
}

.check-content {
    flex: 1;
}

.check-name {
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.check-details {
    font-size: 0.9em;
    color: #7f8c8d;
    margin-top: 5px;
    font-style: italic;
}

.check-points {
    font-size: 0.9em;
    color: #7f8c8d;
    margin-left: auto;
    padding-left: 15px;
}

.info-section {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

.info-section h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.8em;
}

.info-section h3 {
    color: var(--primary-color);
    margin: 30px 0 15px;
    font-size: 1.4em;
}

.info-section p {
    margin-bottom: 20px;
    color: #555;
}

.info-section ul {
    list-style-position: inside;
    color: #555;
}

.info-section ul li {
    margin-bottom: 10px;
}

.info-section a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
}

.info-section a:hover {
    text-decoration: underline;
    color: var(--primary-color);
}

.categories-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.category-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.category-item strong {
    color: var(--primary-color);
}

.category-item small {
    color: var(--cool-grey);
}

footer {
    text-align: center;
    padding: 30px 20px;
    color: #7f8c8d;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

footer p {
    margin: 5px 0;
}

footer a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
}

footer a:hover {
    text-decoration: underline;
    color: var(--accent-color);
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    .subtitle {
        font-size: 1.2em;
    }

    .input-group {
        flex-direction: column;
    }

    #checkBtn {
        width: 100%;
    }

    .score-summary {
        flex-direction: column;
        gap: 20px;
    }

    .categories-list {
        grid-template-columns: 1fr;
    }

    .score-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .repo-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}