/* Base Styles */


body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    color: var(--text-color);
    background-color: var(--light-gray);
    line-height: 1.6;
}

/* Flat Design Elements */
.btn-flat, .form-control, .input-group-text, .auth-box {
    border-radius: 0 !important;
    border: 1px solid #ddd;
}

.input-group-flat {
    margin-bottom: 1rem;
}

.input-group-text {
    background-color: #f8f9fa;
    border-right: none;
}

.form-control {
    border-left: none;
    padding: 10px;
}

.form-control:focus {
    box-shadow: none;
    border-color: var(--accent-color);
}

/* Login Page Specific */
.login-page {
    background-color: var(--light-gray);
}

.auth-box {
    background: white;
    padding: 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border: 1px solid #ddd;
}

.auth-icon {
    text-align: center;
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

/* Validation States */
.was-validated .form-control:invalid, 
.form-control.is-invalid {
    border-color: var(--danger-color);
}

.invalid-feedback {
    font-size: 0.85rem;
    color: var(--danger-color);
}

/* Button States */
.btn-primary {
    background-color: var(--accent-color);
    border: none;
    padding: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary:hover {
    background-color: #2980b9;
}

/* Utility Classes */
.min-vh-100 {
    min-height: 100vh;
}


:root {
    --sidebar-width: 250px;
    --topbar-height: 60px;
    --primary: #4361ee;
    --dark: #212529;
    --light: #f8f9fa;
}

/* Layout Structure */
.main-content {
    margin-left: var(--sidebar-width);
    padding-top: var(--topbar-height);
    min-height: 100vh;
    background: #f5f7fb;
}

.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: var(--dark);
    color: white;
    transition: all 0.3s;
    z-index: 1000;
}

/* Menu Items */
.menu-group {
    margin-bottom: 1.5rem;
}

.menu-title {
    padding: 0.5rem 1.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #6c757d;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.2s;
}

.menu-item:hover, .menu-item.active {
    color: white;
    background: rgba(255,255,255,0.1);
}

.menu-item i {
    margin-right: 0.75rem;
    width: 20px;
    text-align: center;
}

/* Stat Cards */
.stat-card {
    border: none;
    border-radius: 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

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

.stat-title {
    font-size: 0.875rem;
    color: #6c757d;
    margin: 0.5rem 0;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 600;
    margin: 0;
}