/* Professional Light Theme Variables */
:root {
    --bg-body: #f8fafc;        /* Slate 50 - Brighter base */
    --bg-card: #ffffff;
    --text-primary: #0f172a;    /* Slate 900 */
    --text-secondary: #334155;  /* Slate 700 - Darker than before for readability */
    --primary: #2563eb;
    --primary-rgb: 37, 99, 235;
    --primary-hover: #1d4ed8;
    --success: #059669;         /* Emerald 600 */
    --success-bg: #ecfdf5;      /* Emerald 50 */
    --success-text: #065f46;    /* Emerald 800 - High contrast */
    --danger: #dc2626;          /* Red 600 */
    --danger-bg: #fef2f2;       /* Red 50 */
    --danger-text: #991b1b;     /* Red 800 */
    --warning: #d97706;         /* Amber 600 */
    --warning-bg: #fffbeb;      /* Amber 50 */
    --warning-text: #92400e;    /* Amber 800 */
    --info: #0284c7;            /* Sky 600 */
    --info-bg: #f0f9ff;         /* Sky 50 */
    --info-text: #075985;       /* Sky 800 */
    --gray-bg: #f1f5f9;         /* Slate 100 */
    --gray-text: #475569;       /* Slate 600 */
    
    --border: #cbd5e1;
    --input-bg: #ffffff;
    --radius: 6px;              /* Slightly softer corners */
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

h1, h2, h3 {
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.1rem; }

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover { color: var(--primary-hover); }

/* Main Content Wrapper */
.main-content {
    padding: 1rem;
    max-width: 1400px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .main-content { padding: 2rem; }
}

.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1.5rem;
    background: #ffffff;
    border-bottom: 2px solid var(--primary);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.brand {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    transition: all 0.2s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.05);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.85rem;
}

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

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

.btn-danger {
    background-color: #fef2f2;
    color: var(--danger);
    border-color: #fee2e2;
}

.btn-danger:hover { background-color: #fee2e2; }

/* Forms */
.form-group { margin-bottom: 0.75rem; }

label {
    display: block;
    margin-bottom: 0.2rem;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.85rem;
}

input, select, textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: all 0.2s;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

/* Tables */
.table-container {
    width: 100%;
    overflow-x: auto;
}

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

th, td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    text-align: left;
}

th {
    background: #f1f5f9;
    color: var(--text-primary);
    font-weight: 700;
}

tr:nth-child(even) { background: #f8fafc; }
tr:hover { background: #f1f5f9 !important; }

/* Badge Styles - High Contrast */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 9999px; /* Pill style */
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: var(--success-text); border: 1px solid rgba(5, 150, 105, 0.2); }
.badge-danger { background: var(--danger-bg); color: var(--danger-text); border: 1px solid rgba(220, 38, 38, 0.2); }
.badge-warning { background: var(--warning-bg); color: var(--warning-text); border: 1px solid rgba(217, 119, 6, 0.2); }
.badge-info { background: var(--info-bg); color: var(--info-text); border: 1px solid rgba(2, 132, 199, 0.2); }
.badge-gray { background: var(--gray-bg); color: var(--gray-text); border: 1px solid var(--border); }

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 600;
}

/* Flash Messages */
.flash-message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
}

.flash-danger { background: var(--danger-bg); color: var(--danger-text); border: 1px solid var(--danger-bg); }

/* Table Sorting Extras */
th.sortable { cursor: pointer; position: relative; padding-right: 25px !important; }
th.sortable:hover { background: var(--border) !important; }
th.sortable::after { content: '↕'; position: absolute; right: 8px; opacity: 0.3; }
th.sort-asc::after { content: '↑'; opacity: 1; color: var(--primary); }
th.sort-desc::after { content: '↓'; opacity: 1; color: var(--primary); }

/* Mobile Toggles */
.mobile-toggle { display: none; flex-direction: column; gap: 4px; border: none; background: none; cursor: pointer; padding: 4px; z-index: 200; }
.icon-bar { width: 25px; height: 3px; background: var(--primary); border-radius: 2px; transition: all 0.3s ease; }

/* Nav Overlay for mobile */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 150;
    transition: opacity 0.3s ease;
}
.nav-overlay.active { display: block; }

@media (max-width: 992px) {
    .mobile-toggle { display: flex; }
    
    .navbar {
        position: sticky;
        top: 0;
        z-index: 200;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 260px;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 70px 0 2rem 0;
        box-shadow: -4px 0 20px rgba(0,0,0,0.15);
        z-index: 190;
        overflow-y: auto;
        transition: transform 0.3s ease;
        transform: translateX(100%);
    }

    .nav-links.active {
        display: flex;
        transform: translateX(0);
    }

    .nav-links a,
    .nav-links .user-greeting {
        width: 100%;
        padding: 0.85rem 1.5rem;
        border-radius: 0;
        border-bottom: 1px solid var(--border);
        font-size: 0.95rem;
    }

    .nav-links a:hover {
        background: rgba(var(--primary-rgb), 0.06);
        padding-left: 1.8rem;
    }

    .nav-links .user-greeting {
        background: var(--gray-bg);
        font-size: 0.85rem;
    }
}