:root {
    --black: #000;
    --white: #fff;
    --gray: #1a1a1a;
    --light: #f8f9fa;
}

body {
    font-family: 'Segoe UI', sans-serif;
    background: var(--light);
}

.auth-wrapper {
    min-height: calc(100vh - 56px);
    display: flex;
    align-items: center;
    padding: 40px 0;
    background: linear-gradient(135deg, var(--light), #e9ecef);
}

.card {
    border-radius: 16px !important;
}

.form-control,
.form-select {
    border-radius: 8px;
    border: 2px solid #e9ecef;
    padding: 12px 16px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.btn-dark {
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-dark:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.form-check-input:checked {
    background-color: var(--black);
    border-color: var(--black);
}

.nav-link {
    transition: background 0.3s;
    border-radius: 20px;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.icon-wrapper {
    width: 70px;
    height: 70px;
    background: var(--black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
}

.icon-wrapper i {
    color: var(--white);
    font-size: 1.8rem;
}

a {
    text-decoration: none;
}

.alert {
    border: none;
    border-radius: 8px;
}

@media (max-width: 576px) {
    .card-body {
        padding: 25px 20px !important;
    }
}