:root {
    /* Color Palette */
    --primary: #0f172a;
    /* Deep Navy */
    --primary-light: #1e293b;
    --accent: #0097fe;
    /* Blue - Requested by User */
    --accent-glow: #3babff;
    /* Lighter blue for hover/glow */

    --bg-body: #f8fafc;
    --bg-surface: #ffffff;
    --bg-sidebar: #0f172a;

    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-on-dark: #f1f5f9;

    --border: #e2e8f0;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    /* Spacing & Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    /* Typography */
    --font-sans: 'Outfit', sans-serif;

    /* Semantic Aliases */
    --bg-input: #ffffff;
    --bg-hover: #f1f5f9;
    --bg-th: #f8fafc;
}



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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.5;
    height: 100vh;
    overflow: hidden;
    /* App-like feel */
}

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

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    color: var(--text-on-dark);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width 0.3s ease;
}

.logo-area {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent), var(--accent-glow));
    color: white;
    /* Changed to white for better contrast on blue */
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.5rem;
}

.main-nav {
    flex: 1;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    /* Start muted */
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    font-weight: 500;
}

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

.nav-item.active {
    background: linear-gradient(90deg, rgba(0, 151, 254, 0.15) 0%, rgba(0, 151, 254, 0) 100%);
    color: var(--accent-glow);
    border-left: 3px solid var(--accent);
}

.user-profile {
    padding: 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.avatar {
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.user-info .name {
    font-size: 0.9rem;
    font-weight: 600;
}

.user-info .role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    background: var(--bg-body);
}

/* Top bar removed */

.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

/* Utilities / Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    font-size: 0.875rem;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 2px 10px rgba(15, 23, 42, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-main);
}

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

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

.btn-accent:hover {
    background-color: #b45309;
}

/* Cards */
.card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    transition: box-shadow 0.2s;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

/* Form Elements */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-input);
    /* Changed from white */
    color: var(--text-main);
    /* Ensure text is visible */
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.1);
}

/* Table */
.data-table-wrapper {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    background-color: var(--bg-th);
    /* Changed from #f8fafc */
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.data-table tr:hover {
    background-color: var(--bg-hover);
    /* Changed from #f8fafc */
}

.tag {
    display: inline-flex;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tag-success {
    background: #d1fae5;
    color: #065f46;
}

.tag-warning {
    background: #fef3c7;
    color: #92400e;
}

.tag-danger {
    color: #991b1b;
}