:root {
    --bg-primary: #0a0b10;
    --bg-secondary: #12131a;
    --bg-card: #181922;
    --bg-card-hover: #20222f;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent: #ef4444; /* MXGP Red */
    --accent-hover: #dc2626;
    --border-color: #272935;
    --sidebar-width: 260px;
    --border-radius: 12px;
    --shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
    --font: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sidebar Styling */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    padding: 24px;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-brand span {
    color: var(--accent);
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
}

.nav-item:hover, .nav-item.active {
    background-color: var(--bg-card);
    color: var(--text-primary);
}

.nav-item.active {
    border-left: 4px solid var(--accent);
    padding-left: 12px;
}

.nav-item svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
}

/* Main Content Area */
.main-wrapper {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

/* Header */
header {
    background-color: rgba(18, 19, 26, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 90;
}

.header-title h1 {
    font-size: 22px;
    font-weight: 700;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.phase-selector-container {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.phase-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

.phase-select {
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font);
    font-weight: 600;
    outline: none;
    cursor: pointer;
    font-size: 14px;
}

.phase-select option {
    background-color: var(--bg-card);
    color: var(--text-primary);
}

/* Page Container */
.content-container {
    padding: 32px;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}

/* Dynamic view containers */
.view-pane {
    display: none;
}
.view-pane.active-view {
    display: block;
    animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Cards & Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-color);
}

.stat-card .label {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.stat-card .value {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-card .trend {
    font-size: 12px;
    color: var(--text-muted);
}

/* Section Grid layouts */
.section-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Custom Table Design */
.table-responsive {
    overflow-x: auto;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th, td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
    background-color: rgba(255, 255, 255, 0.02);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background-color: rgba(255, 255, 255, 0.01);
}

/* Badges styling */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-red { background-color: rgba(239, 68, 68, 0.15); color: #f87171; }
.badge-orange { background-color: rgba(249, 115, 22, 0.15); color: #fb923c; }
.badge-blue { background-color: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.badge-green { background-color: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-purple { background-color: rgba(139, 92, 246, 0.15); color: #a78bfa; }
.badge-yellow { background-color: rgba(234, 179, 8, 0.15); color: #facc15; }

/* Custom Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 10px 18px;
    border-radius: var(--border-radius);
    font-family: var(--font);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.btn:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--text-muted);
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 8px;
}

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px;
    border-radius: var(--border-radius);
    font-family: var(--font);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-control:focus {
    border-color: var(--accent);
}

/* Hamburger mobile menu */
.menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

/* Lists and details cards */
.details-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.details-item {
    display: flex;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.details-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    padding: 32px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.8);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.open .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
}

/* Quick Search bar */
.search-container {
    position: relative;
    width: 320px;
}

.search-input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 14px;
    outline: none;
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    stroke: var(--text-secondary);
    fill: none;
}

/* Phase cards grid */
.phase-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.phase-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.phase-card.active-phase {
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.15);
}

/* Responsive queries */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-wrapper {
        margin-left: 0;
    }
    
    .menu-btn {
        display: block;
    }
    
    header {
        padding: 16px 20px;
    }
    
    .content-container {
        padding: 20px;
    }
    
    .search-container {
        display: none; /* Hide quick search on mobile header to save space */
    }
}