/* GitHub Activity Summary - Styles */

:root {
    --primary-color: #0969da;
    --secondary-color: #2da44e;
    --background: #ffffff;
    --surface: #f6f8fa;
    --border: #d0d7de;
    --text: #24292f;
    --text-secondary: #57606a;
    --error: #cf222e;
    --shadow: rgba(31, 35, 40, 0.12);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--surface);
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--background);
    border-radius: 8px;
    box-shadow: 0 1px 3px var(--shadow);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0550ae 100%);
    color: white;
    padding: 40px;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 600;
}

header .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

main {
    padding: 40px;
}

section {
    margin-bottom: 60px;
}

section:last-child {
    margin-bottom: 0;
}

h2 {
    font-size: 1.75rem;
    margin-bottom: 20px;
    color: var(--text);
    border-bottom: 2px solid var(--border);
    padding-bottom: 10px;
}

h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--text);
}

h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text);
}

.meta-info {
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.meta-info strong {
    color: var(--text);
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 24px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Charts */
#charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin: 30px 0;
}

.chart-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 24px;
}

.chart {
    margin-top: 15px;
}

.bar-item {
    margin-bottom: 12px;
}

.bar-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
    font-weight: 500;
}

.bar-container {
    position: relative;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 4px;
    height: 28px;
    overflow: hidden;
}

.bar-fill {
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    height: 100%;
    transition: width 0.3s ease;
}

.bar-value {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
}

/* Daily Timeline */
.daily-activity {
    margin-top: 40px;
}

#daily-timeline {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.timeline-day {
    display: flex;
    gap: 20px;
    padding: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    transition: background 0.2s;
}

.timeline-day:hover {
    background: var(--background);
}

.timeline-date {
    min-width: 180px;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.95rem;
}

.timeline-content {
    flex: 1;
}

.timeline-stat {
    margin-bottom: 4px;
    color: var(--text);
}

.timeline-repos {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Query Form */
.info-text {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

#query-username {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

#query-username:focus {
    outline: none;
    border-color: var(--primary-color);
}

.date-range-group {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 30px;
}

.date-range-group label {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

.date-range-group input[type="date"] {
    padding: 10px 12px;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.date-range-group input[type="date"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

button[type="submit"] {
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

button[type="submit"]:hover {
    background: #0550ae;
}

button[type="submit"]:active {
    transform: scale(0.98);
}

/* Query Results */
#query-results {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid var(--border);
}

.date-range-info {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 16px;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.date-range-info p {
    margin: 0;
}

.debug-info {
    font-size: 0.85em;
    color: var(--text-secondary);
    margin-top: 6px;
    font-style: italic;
}

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-secondary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

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

.error {
    background: #fff5f5;
    border: 1px solid #ff8182;
    color: var(--error);
    padding: 16px;
    border-radius: 6px;
    margin: 20px 0;
}

.no-data {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-style: italic;
}

.hidden {
    display: none;
}

/* System messages */
.system-messages {
    margin: 20px 40px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface);
}

.system-messages summary {
    cursor: pointer;
    padding: 12px 16px;
    font-weight: 500;
    color: var(--text-secondary);
    user-select: none;
    background: var(--background);
    border-radius: 6px;
    transition: background-color 0.2s;
}

.system-messages summary:hover {
    background: var(--surface);
}

.system-messages[open] summary {
    border-bottom: 1px solid var(--border);
    border-radius: 6px 6px 0 0;
}

.system-messages #system-messages-content {
    padding: 16px;
}

.system-messages .error {
    margin: 0;
}

/* Open Contributions Descriptor */
.open-contributions {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid var(--border);
}

.open-contributions > h3 {
    margin-bottom: 10px;
}

.open-contributions > .info-text {
    margin-bottom: 20px;
}

.open-contributions a {
    color: var(--primary-color);
    text-decoration: none;
}

.open-contributions a:hover {
    text-decoration: underline;
}

.open-contrib-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 16px;
    margin-bottom: 12px;
}

.open-contrib-card h4 {
    margin-bottom: 8px;
    font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
    font-size: 0.95rem;
}

.open-contrib-org {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 6px;
}

.open-contrib-links {
    margin-top: 10px;
    font-size: 0.9rem;
}

.status-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    margin: 6px 0;
    background: var(--border);
    color: var(--text-secondary);
}

.status-active {
    background: #dafbe1;
    color: #116329;
}

.status-inactive,
.status-archived {
    background: #f6f8fa;
    color: var(--text-secondary);
}

/* Page navigation (Activity ↔ Usage) */
nav.page-nav {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 10px 40px;
    display: flex;
    gap: 24px;
}

nav.page-nav a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding-bottom: 4px;
}

nav.page-nav a:hover {
    text-decoration: underline;
}

nav.page-nav a.active {
    color: var(--text);
    font-weight: 600;
    border-bottom: 2px solid var(--primary-color);
}

nav.page-nav a.disabled {
    color: var(--text-secondary);
    pointer-events: none;
    cursor: default;
    opacity: 0.5;
}

/* Footer */
footer {
    background: var(--surface);
    padding: 30px 40px;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

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

footer p {
    margin: 8px 0;
}

.privacy-note {
    font-size: 0.85rem;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    header {
        padding: 30px 20px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    main {
        padding: 20px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 15px;
    }
    
    #charts-container {
        grid-template-columns: 1fr;
    }
    
    .timeline-day {
        flex-direction: column;
        gap: 10px;
    }
    
    .timeline-date {
        min-width: auto;
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .date-range-group {
        flex-wrap: wrap;
    }
    
    footer {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.5rem;
    }
    
    .stat-value {
        font-size: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}