/* ─── Auth Modal ─── */
.auth-modal {
    position: fixed;
    inset: 0;
    z-index: 9500;
    visibility: hidden;
    pointer-events: none;
}

.auth-modal.is-open {
    visibility: visible;
    pointer-events: auto;
}

.auth-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.auth-modal.is-open .auth-modal__backdrop {
    opacity: 1;
}

.auth-modal__panel {
    position: relative;
    width: min(440px, 92vw);
    max-height: 92vh;
    overflow-y: auto;
    background: #fff;
    border-radius: var(--radius-lg, 14px);
    padding: var(--space-2xl) var(--space-xl);
    margin: 4vh auto;
    top: 0;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
    transform: translateY(12px) scale(0.98);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.auth-modal.is-open .auth-modal__panel {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.auth-modal__close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 6px;
    color: var(--color-text-muted);
    border-radius: 50%;
}

.auth-modal__close:hover {
    background: var(--color-surface-alt);
    color: var(--color-text);
}

.auth-modal__heading {
    margin: 0 0 4px;
    font-size: var(--fs-xl);
    text-align: center;
}

.auth-modal__subtitle {
    margin: 0 0 var(--space-lg);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
}

.auth-modal__tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--color-surface-alt);
    border-radius: var(--radius-md, 8px);
    padding: 4px;
    margin-bottom: var(--space-md);
}

.auth-modal__tab {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 10px;
    border-radius: var(--radius-sm, 6px);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: background 0.15s ease, color 0.15s ease;
}

.auth-modal__tab.is-active {
    background: #fff;
    color: var(--color-primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.auth-modal__error {
    padding: var(--space-sm) var(--space-md);
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
    border-radius: var(--radius-md, 8px);
    font-size: var(--fs-sm);
    margin-bottom: var(--space-md);
}

.auth-modal__success {
    padding: var(--space-sm) var(--space-md);
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
    border-radius: var(--radius-md, 8px);
    font-size: var(--fs-sm);
    margin-top: var(--space-md);
}

.auth-form__google {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 11px 14px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md, 8px);
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.auth-form__google:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-text-muted);
}

.auth-form__google:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.auth-modal__divider {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin: var(--space-md) 0;
    color: var(--color-text-muted);
    font-size: var(--fs-xs);
}

.auth-modal__divider::before,
.auth-modal__divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.auth-form {
    display: none;
    flex-direction: column;
    gap: var(--space-md);
}

.auth-form.is-visible {
    display: flex;
}

.auth-form .field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.auth-form .field__label {
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.auth-form input {
    height: 44px;
    padding: 0 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md, 8px);
    font-size: var(--fs-base);
    font-family: inherit;
    background: #fff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.auth-form input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 131, 143, 0.15);
}

.auth-form .field__hint {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
}

.auth-form__forgot {
    align-self: flex-end;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: var(--fs-xs);
    color: var(--color-primary);
    text-decoration: underline;
    padding: 0;
}

.auth-form__forgot:hover {
    color: var(--color-primary-dark);
}

.auth-form__submit {
    width: 100%;
    justify-content: center;
    margin-top: 4px;
}

.auth-form__intro {
    font-size: var(--fs-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

.auth-form__terms {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    text-align: center;
    margin: 0;
}

.auth-form__terms a {
    color: var(--color-primary);
}

.account-chip {
    display: inline-grid;
    place-items: center;
    width: 28px;
    height: 28px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    font-size: var(--fs-xs);
    font-weight: 700;
}