/* Microsoft Cloud Product Logos - Styles */

/* CSS Variables */
:root {
    --ms-blue: #0078D4;
    --ms-blue-dark: #005A9E;
    --ms-blue-light: #50A0F0;
    --ms-gray-dark: #201F1E;
    --ms-gray: #605E5C;
    --ms-gray-light: #A19F9D;
    --ms-gray-lighter: #E1DFDD;
    --ms-gray-lightest: #F3F2F1;
    --ms-white: #FFFFFF;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: 0.2s ease;
    --bg-primary: #F3F2F1;
    --bg-card: #FFFFFF;
    --text-primary: #201F1E;
    --text-secondary: #605E5C;
    --border-color: #E1DFDD;
}

/* Dark Mode */
[data-theme="dark"] {
    --ms-gray-dark: #F3F2F1;
    --ms-gray: #A19F9D;
    --ms-gray-light: #605E5C;
    --ms-gray-lighter: #3B3A39;
    --ms-gray-lightest: #252423;
    --ms-white: #1B1A19;
    --bg-primary: #1B1A19;
    --bg-card: #252423;
    --text-primary: #F3F2F1;
    --text-secondary: #A19F9D;
    --border-color: #3B3A39;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.35);
}

/* Reset and Base */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 0;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--ms-blue) 0%, var(--ms-blue-dark) 100%);
    color: #FFFFFF;
    padding: 2rem 1rem;
    text-align: center;
    position: relative;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
}

.header-title {
    font-size: 2rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 2.5rem;
}

.header-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
    font-weight: 300;
}

/* Dark Mode Toggle */
.theme-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
    border: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: #FFFFFF;
    font-size: 1.25rem;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    position: absolute;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.theme-toggle .icon-sun {
    opacity: 0;
    transform: rotate(90deg);
}

.theme-toggle .icon-moon {
    opacity: 1;
    transform: rotate(0deg);
}

[data-theme="dark"] .theme-toggle .icon-sun {
    opacity: 1;
    transform: rotate(0deg);
}

[data-theme="dark"] .theme-toggle .icon-moon {
    opacity: 0;
    transform: rotate(-90deg);
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    justify-content: center;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-tab {
    padding: 1rem 2rem;
    border: none;
    background: none;
    font-size: 1rem;
    font-weight: 500;
    color: var(--ms-gray);
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.nav-tab:hover {
    color: var(--ms-blue);
    background: var(--ms-gray-lightest);
}

.nav-tab.active {
    color: var(--ms-blue);
}

.nav-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--ms-blue);
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Home Section */
.intro-section {
    display: grid;
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.intro-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-sm);
}

.intro-card h2 {
    color: var(--ms-blue);
    font-size: 1.25rem;
    margin: 0 0 1rem;
    font-weight: 600;
}

.intro-card p {
    margin: 0 0 1rem;
    color: var(--text-secondary);
}

.intro-card p:last-child {
    margin-bottom: 0;
}

.intro-card.disclaimer {
    background: var(--bg-primary);
    border-left: 4px solid var(--text-secondary);
}

.intro-card.disclaimer h2 {
    color: var(--text-secondary);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    text-align: center;
}

.stat-item {
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--ms-blue);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Feature List */
.feature-list {
    margin: 0;
    padding-left: 1.5rem;
}

.feature-list li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.feature-list li:last-child {
    margin-bottom: 0;
}

/* GitHub Link */
.github-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: #333;
    color: #FFFFFF;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: var(--transition);
}

.github-link:hover {
    background: #555;
    transform: translateY(-2px);
}

.github-icon {
    flex-shrink: 0;
}

/* Filters Section */
.filters-section {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.search-box {
    position: relative;
    margin-bottom: 1rem;
}

.search-box input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: var(--bg-card);
    color: var(--text-primary);
}

.search-box input:focus {
    outline: none;
    border-color: var(--ms-blue);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.1);
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* Filters Row */
.filters-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.filter-group label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-group select {
    padding: 0.625rem 0.75rem;
    font-size: 0.9375rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.filter-group select:hover {
    border-color: var(--text-secondary);
}

.filter-group select:focus {
    outline: none;
    border-color: var(--ms-blue);
}

/* Results Info */
.results-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

#results-count {
    font-weight: 500;
    color: var(--text-secondary);
}

.clear-btn {
    padding: 0.5rem 1rem;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
}

.clear-btn:hover {
    background: var(--bg-primary);
    border-color: var(--text-secondary);
}

/* Logo Gallery */
.logo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.25rem;
}

.logo-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.logo-image-container {
    width: 100%;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.logo-card img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.logo-card img.svg-fallback {
    padding: 1rem;
}

.logo-name {
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    color: var(--text-primary);
    margin: 0 0 0.25rem;
    line-height: 1.3;
    word-break: break-word;
}

.logo-family {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
}

.logo-format-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.125rem 0.375rem;
    font-size: 0.625rem;
    font-weight: 600;
    background: var(--ms-blue);
    color: #FFFFFF;
    border-radius: 3px;
    text-transform: uppercase;
}

.logo-card-inner {
    position: relative;
    width: 100%;
}

/* Load More */
.load-more-container {
    text-align: center;
    padding: 2rem 0;
}

.load-more-btn {
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    background: var(--ms-blue);
    color: #FFFFFF;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

.load-more-btn:hover {
    background: var(--ms-blue-dark);
    transform: translateY(-2px);
}

.load-more-btn:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    z-index: 1000;
    padding: 1rem;
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
    border: none;
    background: var(--bg-primary);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
    z-index: 10;
}

.modal-close:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
}

.modal-image-container {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.modal-image-container img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.modal-info h3 {
    font-size: 1.5rem;
    margin: 0 0 1.5rem;
    color: var(--text-primary);
    padding-right: 2rem;
}

.modal-details {
    margin: 0 0 1.5rem;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem 1rem;
}

.modal-details dt {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.modal-details dd {
    margin: 0;
    color: var(--text-primary);
}

.download-btn,
.github-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    margin-right: 0.75rem;
    margin-bottom: 0.75rem;
}

.download-btn {
    background: var(--ms-blue);
    color: #FFFFFF;
}

.download-btn:hover {
    background: var(--ms-blue-dark);
}

.github-btn {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.github-btn:hover {
    background: var(--border-color);
}

/* Footer */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 1rem;
    text-align: center;
}

.footer p {
    margin: 0 0 0.5rem;
    color: var(--text-secondary);
}

.footer p:last-child {
    margin-bottom: 0;
}

.footer a {
    color: var(--ms-blue);
    text-decoration: none;
}

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

.footer-disclaimer {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    margin: 0 0 0.5rem;
    color: var(--text-primary);
}

.empty-state p {
    margin: 0;
}

/* Loading State */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.loading::after {
    content: '';
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    margin-left: 0.5rem;
    border: 2px solid var(--border-color);
    border-top-color: var(--ms-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-title {
        font-size: 1.5rem;
    }

    .logo-icon {
        font-size: 2rem;
    }

    .header-subtitle {
        font-size: 1rem;
    }

    .nav-tab {
        padding: 0.75rem 1rem;
        font-size: 0.9375rem;
    }

    .filters-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .logo-gallery {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 1rem;
    }

    .modal-body {
        grid-template-columns: 1fr;
        padding: 1.5rem;
    }

    .modal-image-container {
        min-height: 200px;
    }

    .modal-info h3 {
        padding-right: 0;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 1.5rem 1rem;
    }

    .main-content {
        padding: 1rem;
    }

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

    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .logo-gallery {
        grid-template-columns: repeat(2, 1fr);
    }

    .results-info {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }
}

/* Print Styles */
@media print {
    .nav-tabs,
    .filters-section,
    .load-more-container,
    .modal {
        display: none !important;
    }

    .logo-gallery {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
    }

    .logo-card {
        break-inside: avoid;
    }
}

/* Author Section */
.welcome-content {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.author-sidebar {
    flex-shrink: 0;
    text-align: center;
}

.author-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--ms-blue);
    margin-bottom: 1rem;
}

.author-links {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

.author-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-primary);
    color: var(--ms-blue);
    transition: var(--transition);
}

.author-links a:hover {
    background: var(--ms-blue);
    color: #FFFFFF;
    transform: scale(1.1);
}

.author-links svg {
    width: 20px;
    height: 20px;
}

.welcome-text {
    flex: 1;
}

.welcome-text p {
    margin: 0 0 1rem;
    color: var(--text-secondary);
}

.welcome-text p:last-child {
    margin-bottom: 0;
}

/* Charts Section */
.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.chart-wrapper {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 1rem;
    text-align: center;
}

.chart-wrapper h4 {
    margin: 0 0 0.75rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.chart-canvas {
    max-height: 200px;
}

/* Folder Browser */
.folder-browser {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.folder-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-item {
    color: var(--ms-blue);
    cursor: pointer;
    font-size: 0.9375rem;
}

.breadcrumb-item:hover {
    text-decoration: underline;
}

.breadcrumb-separator {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9375rem;
}

.folder-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.folder-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

.folder-item:hover {
    background: var(--border-color);
    transform: translateY(-2px);
}

.folder-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.folder-name {
    font-size: 0.875rem;
    text-align: center;
    color: var(--text-primary);
    word-break: break-word;
}

.file-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.file-item:hover {
    background: var(--border-color);
    transform: translateY(-2px);
}

.file-preview {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin-bottom: 0.5rem;
}

.file-name {
    font-size: 0.75rem;
    text-align: center;
    color: var(--text-primary);
    word-break: break-word;
}

/* Reference Links */
.reference-links-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.reference-links-table th,
.reference-links-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.reference-links-table th {
    background: var(--bg-primary);
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
}

.reference-links-table td {
    color: var(--text-secondary);
}

.reference-links-table tbody tr:hover {
    background: var(--bg-primary);
}

.reference-link-preview {
    width: 32px;
    height: 32px;
    object-fit: contain;
    vertical-align: middle;
}

.reference-link-url {
    font-family: monospace;
    font-size: 0.75rem;
    background: var(--bg-primary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    word-break: break-all;
    color: var(--ms-blue);
}

.copy-btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    background: var(--ms-blue);
    color: #FFFFFF;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.copy-btn:hover {
    background: var(--ms-blue-dark);
}

.reference-scroll-container {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
}

@media (max-width: 768px) {
    .welcome-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .theme-toggle {
        top: 0.5rem;
        right: 0.5rem;
        width: 36px;
        height: 36px;
    }

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

    .reference-links-table {
        font-size: 0.75rem;
    }

    .reference-links-table th,
    .reference-links-table td {
        padding: 0.5rem;
    }
}