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

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.sidebar {
    min-height: 100vh;
    background: #212529;
    padding: 0;
}

.sidebar .nav-link {
    color: #adb5bd;
    padding: 0.75rem 1rem;
    margin: 0;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: #fff;
    background: #495057;
}

.sidebar .nav-link i {
    margin-right: 0.5rem;
}

.navbar {
    margin: 0;
    padding: 0.5rem 1rem;
}

.content-wrapper {
    padding: 1.5rem;
}

.stat-card {
    border-left: 3px solid;
    margin-bottom: 1rem;
}

.stat-card.primary { border-color: #0d6efd; }
.stat-card.success { border-color: #198754; }
.stat-card.info { border-color: #0dcaf0; }
.stat-card.warning { border-color: #ffc107; }
.stat-card.danger { border-color: #dc3545; }

.card {
    margin-bottom: 1.5rem;
}

.table-responsive {
    margin: 0;
}

.btn {
    margin: 0 0.25rem 0.25rem 0;
}

.form-group {
    margin-bottom: 1rem;
}

.form-label {
    margin-bottom: 0.5rem;
}

.login-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 1rem;
}

.login-card {
    max-width: 400px;
    width: 100%;
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.login-header {
    background: #212529;
    color: white;
    padding: 2rem;
    border-radius: 10px 10px 0 0;
    text-align: center;
}

.login-body {
    padding: 2rem;
}

.form-control {
    padding: 0.75rem;
}

.btn-login {
    padding: 0.75rem;
    font-weight: 600;
}