:root {
    --bg-dark: #0a0e14;
    --bg-card: #151b23;
    --primary: #58a6ff;
    --primary-glow: rgba(88, 166, 255, 0.3);
    --secondary: #238636;
    --text-main: #c9d1d9;
    --text-dim: #8b949e;
    --border: #30363d;
    --accent-red: #f85149;
    --accent-yellow: #d29922;
    --glass: rgba(255, 255, 255, 0.03);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow: hidden;
    height: 100vh;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 280px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    z-index: 100;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 3rem;
}

.logo-icon {
    background: linear-gradient(135deg, var(--primary), #bc8cff);
    color: white;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-weight: 700;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.logo-container h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.logo-container span {
    color: var(--primary);
}

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-dim);
    padding: 12px 16px;
    text-align: left;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-btn .icon {
    font-size: 1.2rem;
}

.nav-btn:hover {
    background: var(--glass);
    color: var(--text-main);
}

.nav-btn.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.sidebar-footer {
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge.success {
    background: rgba(35, 134, 54, 0.2);
    color: #3fb950;
    border: 1px solid rgba(35, 134, 54, 0.4);
}

/* Main Content Styling */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem 3rem;
    background: radial-gradient(circle at top right, #161b22, #0a0e14);
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.top-header h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-dim);
    margin-top: 4px;
}

.stat-card.mini {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    text-align: center;
}

.stat-card.mini .label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.stat-card.mini .value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

/* Section Controls */
.section {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.section.visible {
    display: block;
}

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

/* Overview Section */
.hero-card {
    background: linear-gradient(135deg, #1f2937, #111827);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.hero-text {
    max-width: 50%;
}

.hero-text h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: #fff;
}

.hero-text p {
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

.h-stat {
    display: flex;
    flex-direction: column;
}

.h-stat strong {
    font-size: 1.5rem;
    color: var(--primary);
}

.h-stat span {
    font-size: 0.85rem;
    color: var(--text-dim);
    text-transform: uppercase;
}

.hero-visual {
    width: 250px;
    height: 250px;
}

.grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 16px;
}

.info-card h4 {
    margin-bottom: 1.25rem;
    color: var(--text-dim);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.info-card ul {
    list-style: none;
}

.info-card li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-card li::before {
    content: '✓';
    color: var(--secondary);
    font-weight: 700;
}

.progress-container {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.prog-item span {
    font-size: 0.9rem;
    display: block;
    margin-bottom: 6px;
}

.prog-bar {
    height: 8px;
    background: var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.prog-bar .fill {
    height: 100%;
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

/* Table Styling */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
}

.table-scroll {
    overflow-x: auto;
    margin-top: 1rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

th {
    text-align: left;
    padding: 12px;
    border-bottom: 2px solid var(--border);
    color: var(--text-dim);
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

.status-check {
    color: var(--secondary);
    font-weight: 600;
}

/* RBT Section */
.rbt-layout {
    display: flex;
    gap: 3rem;
    align-items: center;
    margin-top: 2rem;
}

.rbt-chart-container {
    flex: 1;
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--border);
}

.rbt-legend {
    width: 300px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.legend-item {
    padding: 1rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
}

.legend-item.critical { background: rgba(248, 81, 73, 0.15); color: #ff7b72; border: 1px solid rgba(248, 81, 73, 0.3); }
.legend-item.high { background: rgba(210, 153, 34, 0.15); color: #ffa657; border: 1px solid rgba(210, 153, 34, 0.3); }
.legend-item.medium { background: rgba(188, 140, 255, 0.15); color: #d2a8ff; border: 1px solid rgba(188, 140, 255, 0.3); }
.legend-item.low { background: rgba(88, 166, 255, 0.15); color: #a5d6ff; border: 1px solid rgba(88, 166, 255, 0.3); }

/* Defect Log Styling */
.defect-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.defect-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 16px;
    transition: transform 0.2s;
}

.defect-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.defect-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.bug-id {
    font-weight: 700;
    color: var(--accent-red);
}

.severity-tag {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
}

.sev-critical { background: var(--accent-red); color: white; }
.sev-high { background: var(--accent-yellow); color: black; }

/* TSR Styling */
.tsr-report {
    max-width: 900px;
    margin: 0 auto;
    background: #fff;
    color: #333;
    padding: 3rem;
    border-radius: 4px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.tsr-header {
    text-align: center;
    border-bottom: 2px solid #eee;
    padding-bottom: 2rem;
    margin-bottom: 2rem;
}

.tsr-charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.chart-box {
    text-align: center;
}

.sign-off {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.stamp {
    border: 4px solid #238636;
    color: #238636;
    padding: 1rem 2rem;
    font-size: 1.5rem;
    font-weight: 900;
    transform: rotate(-10deg);
    border-radius: 10px;
    letter-spacing: 2px;
}