/* =========================================
   Login Modal
   ========================================= */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.2s;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--slate-400);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--slate-600);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--slate-900);
    text-align: center;
    margin-bottom: 1.5rem;
}

.modal-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.modal-tab {
    flex: 1;
    padding: 0.75rem;
    background: none;
    border: none;
    border-bottom: 2px solid var(--slate-200);
    color: var(--slate-500);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.modal-tab.active {
    color: var(--primary-600);
    border-bottom-color: var(--primary-600);
}

.modal-tab:hover:not(.active) {
    color: var(--slate-700);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate-700);
    margin-bottom: 0.5rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--slate-300);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-error {
    color: #ef4444;
    font-size: 0.75rem;
    margin-bottom: 1rem;
    display: none;
}

.btn-submit {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--primary-600);
    color: var(--white);
    border: none;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-submit:hover {
    background-color: var(--primary-500);
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: 1.5rem 0;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: var(--slate-200);
}

.auth-divider span {
    padding: 0 1rem;
    color: var(--slate-400);
    font-size: 0.75rem;
}

.btn-google {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.875rem;
    background-color: var(--white);
    border: 1px solid var(--slate-300);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate-700);
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
}

.btn-google:hover {
    background-color: var(--slate-50);
    border-color: var(--slate-400);
}