.signin-button {
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    appearance: none;
    position: relative;

    height: 40px;
    padding: 0 12px;
    border-radius: 6px;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", Roboto, Arial, sans-serif;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.25px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    cursor: pointer;
    white-space: nowrap;
    max-width: 400px;
    min-width: min-content;
    transition: background-color 0.2s, border-color 0.2s, box-shadow 0.2s;
    text-decoration: none; /* important for anchor */
    /*color: inherit; !* inherit color from button style *!*/
}

.signin-button.disabled,
.signin-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: auto;
}

.signin-icon {
    width: 20px;
    height: 20px;
    display: block;
}

/* GOOGLE BUTTON */
.google-button {
    background-color: #fff;
    color: #1f1f1f;
    border: 1px solid #747775;
}

.google-button:hover:not(:disabled) {
    background-color: #f5f5f5;
}

.google-button:active:not(:disabled) {
    background-color: #e0e0e0;
}

/* APPLE BUTTON */
.apple-button {
    background-color: #000;
    color: #fff;
    border: 1px solid #000;
}

.apple-button:hover:not(:disabled) {
    background-color: #333;
}

.apple-button:active:not(:disabled) {
    background-color: #555;
}

/* LOGIN TERMS CONSENT */
.login-terms-consent {
    font-size: 15px;
    line-height: 1.5;
}

.login-terms-consent .form-check-input {
    width: 16px;
    height: 16px;
    border: 1px solid #999;
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.login-terms-consent .form-check-input:checked {
    background-color: var(--sm-color-purple);
    border-color: var(--sm-color-purple);
}

.login-terms-consent .form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(119, 95, 240, 0.25);
    border-color: var(--sm-color-purple);
}

/* Nudge animation — draws attention to the checkbox */
@keyframes login-terms-nudge {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-4px); }
    40% { transform: translateX(4px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(2px); }
}

.login-terms-consent.nudge {
    animation: login-terms-nudge 0.4s ease;
}

.login-terms-consent.nudge .form-check-input {
    border-color: var(--sm-color-purple);
    box-shadow: 0 0 0 3px rgba(119, 95, 240, 0.3);
}

.login-terms-link {
    color: var(--sm-color-purple);
    text-decoration: none;
    font-weight: 500;
}

.login-terms-disclaimer {
    color: var(--sm-color-grey-01);
    font-size: 13px;
    line-height: 1.6;
    margin-top: 0.5rem;
    padding-left: 23px;
}

/* LOADING STATE (redirect spinner) */
.signin-button .btn-content {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.signin-button.loading .btn-content {
    visibility: hidden;
}

.signin-button .btn-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    opacity: 0;
}

.signin-button.loading .btn-spinner {
    opacity: 1;
}

.signin-button .btn-spinner .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: btn-spin 0.6s linear infinite;
}

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

/* ─── EMAIL INPUT ─── */

.sign-in .email-input {
    width: 100%;
    max-width: 400px;
    height: 44px;
    padding: 0 14px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-family: inherit;
    font-size: 15px;
    color: var(--sm-color-grey-01);
    background: #fff;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.sign-in .email-input:focus {
    border-color: var(--sm-color-purple);
    box-shadow: 0 0 0 3px rgba(119, 95, 240, 0.15);
}

.sign-in .email-input::placeholder {
    color: var(--sm-color-grey-03);
}

.sign-in .email-input.error {
    border-color: var(--sm-color-red);
}

.sign-in .email-input.error:focus {
    box-shadow: 0 0 0 3px rgba(255, 121, 117, 0.2);
}

/* EMAIL CONTINUE BUTTON */
.sign-in .email-continue-btn {
    width: 100%;
    max-width: 400px;
    height: 40px;
    border: none;
    border-radius: 6px;
    background-color: var(--sm-color-purple);
    color: #fff;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, opacity 0.2s;
    position: relative;
}

.sign-in .email-continue-btn:hover:not(:disabled) {
    background-color: #6a50e0;
}

.sign-in .email-continue-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.sign-in .email-continue-btn.loading {
    color: transparent;
}

.sign-in .email-continue-btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid #fff;
    border-right-color: transparent;
    border-radius: 50%;
    animation: btn-spin 0.6s linear infinite;
}

/* ─── OR DIVIDER ─── */

.signin-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 400px;
    margin: 0 auto;
    color: var(--sm-color-grey-03);
    font-size: 13px;
    font-weight: 400;
    text-transform: lowercase;
}

.signin-divider::before,
.signin-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--sm-color-outline-grey);
}

/* ─── OTP CODE INPUTS ─── */

.otp-container {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.otp-input {
    width: 40px;
    height: 48px;
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    font-family: 'Courier New', monospace;
    color: var(--sm-color-grey-01);
    border: 1.5px solid #d1d5db;
    border-radius: 8px;
    outline: none;
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
    -moz-appearance: textfield;
}

.otp-input::-webkit-outer-spin-button,
.otp-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.otp-input:focus {
    border-color: var(--sm-color-purple);
    box-shadow: 0 0 0 3px rgba(119, 95, 240, 0.15);
}

.otp-input.error {
    border-color: var(--sm-color-red);
}

@media (max-width: 420px) {
    .otp-container {
        gap: 4px;
    }

    .otp-input {
        width: 34px;
        height: 42px;
        font-size: 18px;
        border-radius: 6px;
    }
}

/* ─── VIEW TRANSITIONS ─── */

.signin-view {
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.signin-view.hidden {
    display: none;
}

.signin-view.fade-in {
    animation: signin-fade-in 0.3s ease forwards;
}

@keyframes signin-fade-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─── ERROR MESSAGE ─── */

.signin-error {
    color: var(--sm-color-red);
    font-size: 13px;
    margin-top: 8px;
}

/* ─── OTP INFO / LINKS ─── */

.otp-info {
    color: var(--sm-color-grey-03);
    font-size: 14px;
    line-height: 1.5;
}

.otp-resend-link {
    color: var(--sm-color-purple);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    font-size: inherit;
    font-family: inherit;
}

.otp-resend-link:hover {
    text-decoration: underline;
}

.otp-resend-link:disabled {
    color: var(--sm-color-grey-03);
    cursor: not-allowed;
    text-decoration: none;
}

.otp-back-link {
    color: var(--sm-color-grey-03);
    font-size: 14px;
    text-decoration: none;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    font-family: inherit;
    transition: color 0.2s;
}

.otp-back-link:hover {
    color: var(--sm-color-grey-01);
}

.otp-timer {
    color: var(--sm-color-grey-03);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
}