/* ===========================================
   NIBANGO WEB - AUTH
   SignIn / SignUp styles mirroring iOS
   =========================================== */

.auth-page {
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background-color: var(--color-background);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    padding: var(--spacing-xl);
    background-color: var(--color-background-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-light);
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

.auth-title {
    font-size: var(--font-size-title);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.auth-subtitle {
    font-size: var(--font-size-subheadline);
    color: var(--color-text-secondary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.auth-field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.auth-label {
    font-size: var(--font-size-footnote);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    margin-left: var(--spacing-xs);
}

.auth-input {
    width: 100%;
    height: 52px;
    padding: 0 var(--spacing-md);
    background-color: var(--color-background);
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-md);
    font-size: var(--font-size-body);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.auth-input:focus {
    border-color: var(--brand-primary);
    background-color: var(--color-background);
    outline: none;
}

.auth-actions {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.auth-button {
    width: 100%;
    height: 52px;
    background-color: var(--brand-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-headline);
    font-weight: var(--font-weight-bold);
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
}

.auth-button:hover {
    background-color: var(--brand-secondary);
    transform: translateY(-1px);
}

.auth-footer {
    margin-top: var(--spacing-xl);
    text-align: center;
    font-size: var(--font-size-subheadline);
    color: var(--color-text-secondary);
}

.auth-link {
    color: var(--brand-primary);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
}

.auth-link:hover {
    text-decoration: underline;
}

/* Social Buttons */
.auth-social {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.auth-social-btn {
    width: 100%;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background-color: #000;
    color: white;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-fast);
}

@media (prefers-color-scheme: dark) {
    .auth-social-btn--apple {
        background-color: white;
        color: black;
    }
}