/* About Calendar Page - QMF UI Theme */

/* Header Styles */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--qmf-border);
}

[data-theme="dark"] header {
    background: rgba(30, 41, 59, 0.9);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo {
    height: 40px;
    width: auto;
    transition: transform var(--qmf-transition);
}

.logo:hover {
    transform: scale(1.05);
}

.site-title {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--qmf-primary), var(--qmf-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nav-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--qmf-primary-light);
    color: var(--qmf-primary);
    text-decoration: none;
    font-size: 1rem;
    transition: all var(--qmf-transition);
}

.nav-link:hover {
    background: var(--qmf-primary);
    color: white;
    transform: translateY(-2px);
}

#theme-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 10px;
    background: var(--qmf-primary-light);
    color: var(--qmf-primary);
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--qmf-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

#theme-btn:hover {
    background: var(--qmf-primary);
    color: white;
    transform: translateY(-2px);
}

/* Footer Styles */
.qmf-footer {
    background: var(--qmf-card);
    border-top: 1px solid var(--qmf-border);
    padding: 2rem 1rem;
    margin-top: 4rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    color: var(--qmf-text-secondary);
    font-size: 0.875rem;
}

/* Main Container */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.page-title {
    margin-bottom: 2rem;
}

.title-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-title h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--qmf-text);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.page-title h1 i {
    color: var(--qmf-primary);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--qmf-card);
    color: var(--qmf-text);
    border: 1px solid var(--qmf-border);
    border-radius: var(--qmf-radius-md);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--qmf-transition);
    font-size: 0.9rem;
}

.back-link:hover {
    background: var(--qmf-primary);
    color: white;
    border-color: var(--qmf-primary);
    transform: translateX(-4px);
}

.subtitle {
    font-size: 1.125rem;
    color: var(--qmf-text-secondary);
    font-weight: 400;
    margin: 0;
}

.article {
    background: var(--qmf-card);
    border-radius: var(--qmf-radius-xl);
    padding: 3rem;
    box-shadow: var(--qmf-shadow-lg);
    border: 1px solid var(--qmf-border);
    animation: fadeInUp 0.6s ease-out;
}

.article-header {
    border-left: 5px solid var(--qmf-primary);
    padding-left: 1.5rem;
    margin-bottom: 2rem;
}

.article-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--qmf-text);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.article-intro {
    font-size: 1.0625rem;
    color: var(--qmf-text-secondary);
    font-style: italic;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.section {
    margin-bottom: 2.5rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--qmf-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-title i {
    font-size: 1.375rem;
}

.section-content {
    color: var(--qmf-text);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.section-content p {
    margin-bottom: 0.75rem;
}

.highlight-box {
    background: var(--qmf-primary-light);
    border-left: 4px solid var(--qmf-primary);
    padding: 1.5rem;
    border-radius: var(--qmf-radius-lg);
    margin: 1.5rem 0;
}

.highlight-box strong {
    color: var(--qmf-primary);
    display: block;
    margin-bottom: 0.75rem;
    font-size: 1.0625rem;
}

.highlight-box p {
    margin-bottom: 0.5rem;
    color: var(--qmf-text);
}

.example {
    background: var(--qmf-bg-alt, #f8fafc);
    border: 1px solid var(--qmf-border);
    border-radius: var(--qmf-radius-md);
    padding: 1rem;
    margin: 1rem 0;
    font-family: 'Courier New', monospace;
    color: var(--qmf-text);
}

[data-theme="dark"] .example {
    background: rgba(255, 255, 255, 0.05);
}

.feature-list {
    list-style: none;
    margin: 1.5rem 0;
    padding: 0;
}

.feature-list li {
    padding: 0.75rem 0;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    color: var(--qmf-text);
}

.feature-list li::before {
    content: '✅';
    font-size: 1.25rem;
    flex-shrink: 0;
}

.tech-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--qmf-primary), var(--qmf-secondary));
    color: white;
    padding: 0.375rem 0.875rem;
    border-radius: var(--qmf-radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    margin: 0.25rem;
}

.quote {
    font-size: 1.1875rem;
    font-style: italic;
    text-align: center;
    color: var(--qmf-secondary);
    margin: 2.5rem 0;
    padding: 1.5rem;
    border-top: 2px solid var(--qmf-border);
    border-bottom: 2px solid var(--qmf-border);
    line-height: 1.6;
}

.cta-section {
    text-align: center;
    margin-top: 3rem;
    padding: 2.5rem;
    background: var(--qmf-primary-light);
    border-radius: var(--qmf-radius-xl);
    border: 1px solid var(--qmf-border);
}

.cta-section h3 {
    color: var(--qmf-text);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--qmf-primary), var(--qmf-secondary));
    color: white;
    text-decoration: none;
    border-radius: var(--qmf-radius-full);
    font-weight: 600;
    font-size: 1.0625rem;
    transition: all var(--qmf-transition);
    box-shadow: var(--qmf-shadow-lg);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(102, 126, 234, 0.35);
}

.cta-section p {
    color: var(--qmf-text-secondary);
}

.tags {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--qmf-border);
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--qmf-bg-alt, #f3f4f6);
    color: var(--qmf-text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--qmf-radius-full);
    font-size: 0.8125rem;
    border: 1px solid var(--qmf-border);
}

[data-theme="dark"] .tag {
    background: rgba(255, 255, 255, 0.05);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .page-title h1 {
        font-size: 1.75rem;
    }

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

    .article {
        padding: 1.5rem;
    }

    .article-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .quote {
        font-size: 1rem;
        padding: 1rem;
    }

    .cta-section {
        padding: 1.5rem;
    }
    
    .header-container {
        padding: 0.75rem 1rem;
    }
    
    .logo {
        height: 32px;
    }
    
    .site-title {
        font-size: 1rem;
    }
    
    .breakdown-table {
        overflow-x: auto;
    }
    
    .breakdown-table table {
        font-size: 0.8rem;
    }
}

/* ============================================
   TECHNICAL BREAKDOWN SECTION
   ============================================ */

.technical-breakdown {
    margin-top: 2rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(139, 92, 246, 0.05));
    border: 2px solid var(--qmf-primary);
    border-radius: var(--qmf-radius-lg);
}

.technical-breakdown h4 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    color: var(--qmf-primary);
    margin-bottom: 1.25rem;
}

.breakdown-table {
    margin-bottom: 1.25rem;
}

.breakdown-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--qmf-card);
    border-radius: var(--qmf-radius-md);
    overflow: hidden;
    box-shadow: var(--qmf-shadow);
}

.breakdown-table th,
.breakdown-table td {
    padding: 0.875rem 1rem;
    text-align: center;
    border-bottom: 1px solid var(--qmf-border);
}

.breakdown-table th {
    background: var(--qmf-primary);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.breakdown-table th:first-child {
    text-align: left;
}

.breakdown-table td:first-child {
    text-align: left;
    background: rgba(0, 0, 0, 0.02);
    font-size: 0.875rem;
}

.breakdown-table .highlight-row {
    background: rgba(245, 158, 11, 0.1);
}

.breakdown-table .highlight-row td {
    font-weight: 600;
}

.breakdown-table .vn-col {
    color: #dc2626;
    font-weight: 700;
}

.breakdown-table .cn-col {
    color: #d97706;
    font-weight: 700;
}

.breakdown-table .result-row {
    background: rgba(59, 130, 246, 0.1);
}

.breakdown-table .result-row td {
    font-size: 1rem;
}

.root-cause {
    padding: 1rem 1.25rem;
    background: rgba(16, 185, 129, 0.1);
    border-left: 4px solid #10b981;
    border-radius: var(--qmf-radius-md);
}

.root-cause strong {
    color: #059669;
}

.root-cause code {
    background: rgba(0, 0, 0, 0.1);
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.875rem;
}

.root-cause ul {
    margin: 0.75rem 0 0 1.5rem;
    padding: 0;
}

.root-cause li {
    margin-bottom: 0.5rem;
}

.root-cause em {
    font-style: italic;
    color: var(--qmf-primary);
    font-weight: 500;
}

[data-theme="dark"] .technical-breakdown {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
}

[data-theme="dark"] .breakdown-table td:first-child {
    background: rgba(255, 255, 255, 0.02);
}

[data-theme="dark"] .root-cause {
    background: rgba(16, 185, 129, 0.15);
}

[data-theme="dark"] .root-cause code {
    background: rgba(255, 255, 255, 0.1);
}
/* Test Suite Box */
.test-suite-box {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(34, 197, 94, 0.05));
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--qmf-radius-lg);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.test-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.test-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-weight: 700;
    font-size: 1rem;
}

.test-badge.passed {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.test-date {
    font-size: 0.875rem;
    color: var(--qmf-text-secondary);
    background: var(--qmf-card);
    padding: 0.375rem 0.75rem;
    border-radius: var(--qmf-radius-sm);
}

.test-categories {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.test-category {
    background: var(--qmf-card);
    border: 1px solid var(--qmf-border);
    border-radius: var(--qmf-radius-md);
    padding: 1rem;
    transition: all var(--qmf-transition);
}

.test-category:hover {
    border-color: var(--qmf-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.test-category h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--qmf-text);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.test-category h4 i {
    color: #10b981;
    font-size: 0.875rem;
}

.test-category ul {
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.8125rem;
    color: var(--qmf-text-secondary);
}

.test-category ul li {
    padding: 0.25rem 0;
    padding-left: 1rem;
    position: relative;
}

.test-category ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

[data-theme="dark"] .test-suite-box {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(34, 197, 94, 0.08));
    border-color: rgba(16, 185, 129, 0.4);
}

[data-theme="dark"] .test-category {
    background: rgba(255, 255, 255, 0.02);
}