:root {
    --bg-dark: #f8fafc;
    --bg-panel: #ffffff;
    --border-color: rgba(15, 23, 42, 0.08);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-blue: #0284c7;
    --accent-blue-hover: #0369a1;
    --alert-red: #dc2626;
    --alert-red-bg: rgba(220, 38, 38, 0.05);
    --success-green: #16a34a;
    --success-green-bg: rgba(22, 163, 74, 0.05);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(56, 189, 248, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

.glass-panel {
    background: var(--bg-panel);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

/* Layout */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 260px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    border-right: 1px solid var(--border-color);
    border-radius: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--accent-blue);
}

.logo h2 {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-item:hover, .nav-item.active {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

/* Workspace */
.workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.top-bar {
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 10;
}

.top-bar h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

.user-badge {
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.content-area {
    padding: 40px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Upload Zone */
.upload-zone {
    padding: 60px 40px;
    text-align: center;
    border: 2px dashed rgba(15, 23, 42, 0.15);
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-zone.dragover {
    border-color: var(--accent-blue);
    background: rgba(56, 189, 248, 0.05);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.upload-icon {
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.btn-primary {
    background: var(--accent-blue);
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
    margin-top: 16px;
}

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

/* Loading State */
.loading-state {
    text-align: center;
    padding: 80px 0;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(15, 23, 42, 0.08);
    border-left-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 24px auto;
}

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

/* Results Dashboard */
.results-dashboard {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.dashboard-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 8px;
}

.badge {
    background: rgba(15, 23, 42, 0.06);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.875rem;
}

/* KPIs */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.kpi-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.kpi-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kpi-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue);
}
.kpi-small {
    font-size: 1.1rem;
}

/* Generic Cards */
.card {
    padding: 24px;
}

.card h3 {
    margin-bottom: 16px;
    font-size: 1.125rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

/* Red Flags */
.redflags-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.redflag-item {
    background: var(--alert-red-bg);
    border-left: 4px solid var(--alert-red);
    padding: 16px;
    border-radius: 0 8px 8px 0;
}

.redflag-item.Medium {
    border-left-color: #f59e0b;
    background: rgba(245, 158, 11, 0.1);
}

.redflag-item.Low {
    border-left-color: #3b82f6;
    background: rgba(59, 130, 246, 0.1);
}

/* Checklist */
.checklist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.checklist-item {
    background: #f1f5f9;
    border: 1px solid rgba(15, 23, 42, 0.04);
    padding: 16px;
    border-radius: 8px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.checklist-item input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    accent-color: var(--accent-blue);
}

.checklist-content strong {
    display: block;
    margin-bottom: 4px;
}
.checklist-content span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.checklist-cat {
    display: inline-block;
    font-size: 0.7rem;
    text-transform: uppercase;
    background: rgba(15, 23, 42, 0.06);
    color: var(--text-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    margin-bottom: 6px;
}

/* Markdown */
.markdown-content {
    line-height: 1.6;
    color: var(--text-secondary);
}
.markdown-content h1, .markdown-content h2, .markdown-content h3 {
    color: var(--text-primary);
    margin-top: 24px;
    margin-bottom: 12px;
}
.markdown-content p { margin-bottom: 16px; }
.markdown-content ul, .markdown-content ol { margin-left: 24px; margin-bottom: 16px; }
.markdown-content li { margin-bottom: 8px; }