:root {
    --vrp-login-overlay: rgba(15, 23, 42, 0.45);
    --vrp-login-spinner: rgba(255, 255, 255, 0.85);
}

.vrp-login-body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Source Sans Pro', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: linear-gradient(135deg, var(--vp-primary) 0%, var(--vp-purple) 100%);
    color: var(--vp-text);
}

.vrp-login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    position: relative;
}

.vrp-login-shell::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--vrp-login-overlay);
    pointer-events: none;
}

.vrp-login-card {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
    padding: 2.25rem 2rem;
    background: var(--vp-surface-1);
    border: 1px solid var(--vp-border);
    border-radius: var(--vp-radius-xl, 1rem);
    box-shadow: var(--vp-shadow-lg);
}

.vrp-login-header {
    text-align: center;
    margin-bottom: 1.75rem;
}

.vrp-login-logo {
    width: 56px;
    height: 56px;
    object-fit: contain;
    margin-bottom: 0.75rem;
}

.vrp-login-title {
    margin: 0 0 0.35rem 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--vp-text);
}

.vrp-login-subtitle {
    margin: 0;
    color: var(--vp-text-secondary);
    font-size: 0.95rem;
}

.vrp-login-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.vrp-login-field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.vrp-login-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--vp-text-secondary);
}

.vrp-login-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.vrp-login-input-icon {
    position: absolute;
    left: 0.85rem;
    color: var(--vp-text-muted);
    pointer-events: none;
}

.vrp-login-input {
    width: 100%;
    padding: 0.65rem 0.9rem 0.65rem 2.35rem;
    font-size: 0.95rem;
    color: var(--vp-text);
    background: var(--vp-input-bg);
    border: 1px solid var(--vp-input-border);
    border-radius: var(--vp-radius-md, 0.5rem);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.vrp-login-input:focus {
    outline: none;
    border-color: var(--vp-input-focus);
    box-shadow: 0 0 0 3px var(--vp-primary-subtle);
}

.vrp-login-password-toggle {
    position: absolute;
    right: 0.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: transparent;
    border: 0;
    border-radius: var(--vp-radius-sm, 0.375rem);
    color: var(--vp-text-secondary);
    cursor: pointer;
}

.vrp-login-password-toggle:hover {
    color: var(--vp-text);
    background: var(--vp-surface-3);
}

.vrp-login-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.vrp-login-check {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--vp-text-secondary);
    cursor: pointer;
    user-select: none;
}

.vrp-login-check input {
    accent-color: var(--vp-primary);
    width: 1rem;
    height: 1rem;
}

.vrp-login-error {
    padding: 0.6rem 0.8rem;
    background: var(--vp-danger-subtle);
    color: var(--vp-danger-hover);
    border: 1px solid var(--vp-danger);
    border-radius: var(--vp-radius-md, 0.5rem);
    font-size: 0.85rem;
}

.vrp-login-submit {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--vp-text-on-primary);
    background: var(--vp-btn-primary-bg);
    border: 0;
    border-radius: var(--vp-radius-md, 0.5rem);
    cursor: pointer;
    transition: background-color 0.15s ease, transform 0.05s ease;
}

.vrp-login-submit:hover:not(:disabled) {
    background: var(--vp-btn-primary-bg-hover);
}

.vrp-login-submit:active:not(:disabled) {
    transform: translateY(1px);
}

.vrp-login-submit:disabled {
    opacity: 0.75;
    cursor: not-allowed;
}

.vrp-login-submit-spinner {
    display: none;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    border: 2px solid var(--vrp-login-spinner);
    border-top-color: transparent;
    animation: vrp-login-spin 0.65s linear infinite;
}

.vrp-login-submit.is-loading .vrp-login-submit-spinner {
    display: inline-block;
}

.vrp-login-submit.is-loading .vrp-login-submit-label {
    opacity: 0.85;
}

.vrp-login-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--vp-text-muted);
}

@keyframes vrp-login-spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 480px) {
    .vrp-login-card {
        padding: 1.5rem 1.25rem;
        border-radius: var(--vp-radius-lg, 0.75rem);
    }

    .vrp-login-title {
        font-size: 1.3rem;
    }
}