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

:root {
    --bg-primary: #0d0d0d;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #262626;
    --accent: #9b59b6;
    --accent-hover: #8e44ad;
    --text-primary: #e0e0e0;
    --text-secondary: #888888;
    --success: #27ae60;
    --warning: #f39c12;
    --danger: #c0392b;
    --info: #3498db;
    --border: #333333;
}

body {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 0;
    margin: 0;
    padding-bottom: 60px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

/* Header */
header {
    background: var(--bg-secondary);
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin: 0;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.status-active {
    color: var(--success);
    background: rgba(39, 174, 96, 0.15);
    padding: 2px 8px;
    border-radius: 2px;
    border: 1px solid var(--success);
    font-weight: 700;
}

/* Tabs */
.tabs {
    background: var(--bg-secondary);
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 12px 20px;
    font-size: 0.8rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
    background: var(--bg-primary);
}

/* Stats Bar */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border);
    border-bottom: 1px solid var(--border);
}

.stat-item {
    background: var(--bg-secondary);
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-value.pending {
    color: var(--warning);
}

.stat-value.approved {
    color: var(--info);
}

.stat-value.completed {
    color: var(--success);
}

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

.tab-content.active {
    display: block;
}

.tab-content h2 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
}

/* Forms */
.change-form {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 24px;
    max-width: 800px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
    transition: none;
}

.btn:hover {
    background: var(--bg-secondary);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-success {
    background: transparent;
    border-color: var(--success);
    color: var(--success);
}

.btn-success:hover {
    background: var(--success);
    color: white;
}

.btn-danger {
    background: transparent;
    border-color: var(--danger);
    color: var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: white;
}

/* Change Cards */
.changes-list {
    display: grid;
    gap: 16px;
}

.change-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 16px;
    cursor: pointer;
    transition: none;
}

.change-card:hover {
    border-color: var(--accent);
    background: var(--bg-tertiary);
}

.change-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 12px;
}

.change-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.change-id {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.change-badges {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.badge {
    padding: 4px 8px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 2px;
    font-weight: 600;
}

.badge-status {
    border: 1px solid;
}

.badge-pending {
    color: var(--warning);
    border-color: var(--warning);
    background: rgba(243, 156, 18, 0.1);
}

.badge-approved {
    color: var(--info);
    border-color: var(--info);
    background: rgba(52, 152, 219, 0.1);
}

.badge-completed {
    color: var(--success);
    border-color: var(--success);
    background: rgba(39, 174, 96, 0.1);
}

.badge-rejected {
    color: var(--danger);
    border-color: var(--danger);
    background: rgba(192, 57, 43, 0.1);
}

.badge-risk-low {
    color: var(--success);
    background: rgba(39, 174, 96, 0.15);
}

.badge-risk-medium {
    color: var(--warning);
    background: rgba(243, 156, 18, 0.15);
}

.badge-risk-high {
    color: #e74c3c;
    background: rgba(231, 76, 60, 0.15);
}

.badge-risk-critical {
    color: var(--danger);
    background: rgba(192, 57, 43, 0.15);
}

.change-meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
}

.meta-item {
    color: var(--text-secondary);
}

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

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    background: var(--bg-secondary);
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1rem;
    margin: 0;
    border: none;
    padding: 0;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
}

.close-btn:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.detail-section {
    margin-bottom: 24px;
}

.detail-section h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.detail-section p {
    color: var(--text-primary);
    line-height: 1.6;
}

.action-buttons {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

/* Calendar */
.calendar-grid {
    display: grid;
    gap: 12px;
}

.calendar-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-left: 4px solid;
    padding: 12px;
}

.calendar-item.risk-low {
    border-left-color: var(--success);
}

.calendar-item.risk-medium {
    border-left-color: var(--warning);
}

.calendar-item.risk-high {
    border-left-color: #e74c3c;
}

.calendar-item.risk-critical {
    border-left-color: var(--danger);
}

.calendar-date {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.calendar-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 4px 0;
}

/* Footer */
footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px 24px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
}

#last-update {
    color: var(--text-primary);
    font-family: 'Consolas', monospace;
}

/* Loading */
.loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px;
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .change-meta {
        grid-template-columns: 1fr;
    }

    footer {
        flex-direction: column;
        gap: 10px;
    }

    #refresh-btn {
        width: 100%;
    }
}