/* Auth layout shell (shared by login + register) */
.auth-shell {
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    margin: 2rem auto 1rem;
    max-width: 520px;
    padding: 1rem;
    border-radius: 18px;
    background: linear-gradient(180deg, #f9fbff 0%, #f2f6fc 100%);
    border: 1px solid #dfe8f3;
}

/* Auth card */
.auth-card {
    background: #ffffff;
    border: 1px solid #d8e4f1;
    border-radius: 16px;
    padding: 1.4rem;
    box-shadow: 0 16px 34px rgba(13, 24, 44, 0.1);
}

.auth-header h1 {
    margin: 0;
    font-size: clamp(1.5rem, 3vw, 1.85rem);
    line-height: 1.2;
    color: #0c213d;
    letter-spacing: -0.01em;
}

.auth-subtitle {
    margin: .5rem 0 0;
    color: #5c718f;
    font-size: .95rem;
}

/* Auth form fields */
.auth-form {
    margin-top: 1.1rem;
    gap: .9rem;
}

.auth-label {
    display: grid;
    gap: .4rem;
    font-size: .86rem;
    font-weight: 500;
    color: #1f3553;
}

.auth-input {
    width: 100%;
    min-height: 45px;
    border-radius: 12px;
    border: 1px solid #c6d7ea;
    background: #fbfdff;
    padding: .6rem .75rem;
    font-size: .97rem;
    color: #0d182c;
}

.auth-input:focus {
    outline: none;
    border-color: #2a73c7;
    box-shadow: 0 0 0 4px rgba(42, 115, 199, 0.14);
}

.auth-captcha-question {
    display: block;
    padding: .7rem .8rem;
    border-radius: 12px;
    border: 1px solid #d7e4f2;
    background: #f4f8fd;
    color: #16385e;
    font-size: .93rem;
    font-weight: 600;
}

.auth-password-wrap {
    position: relative;
    display: block;
}

.auth-password-wrap .auth-input {
    padding-right: 5rem;
}

.auth-password-toggle {
    position: absolute;
    top: 50%;
    right: .55rem;
    transform: translateY(-50%);
    border: 1px solid #c6d7ea;
    background: #f2f7fe;
    color: #143964;
    border-radius: 9px;
    font-size: .78rem;
    font-weight: 500;
    padding: .3rem .55rem;
    cursor: pointer;
}

.auth-password-toggle:hover {
    background: #e7f0fb;
}

/* Auth links and helper row */
.auth-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: .65rem;
    margin-top: .1rem;
}

.auth-check {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    font-size: .88rem;
    font-weight: 500;
    color: #3e5574;
}

.auth-check input {
    width: 16px;
    height: 16px;
    margin: 0;
}

.auth-link {
    color: #1b589c;
    font-weight: 500;
    font-size: .9rem;
}

.auth-link:hover {
    color: #16487f;
}

.auth-link-muted {
    font-size: .85rem;
}

/* Auth submit button */
.auth-submit {
    width: 100%;
    min-height: 46px;
    border-radius: 12px;
    background: linear-gradient(180deg, #183f69 0%, #10345a 100%);
}

.auth-submit:hover {
    box-shadow: 0 12px 24px rgba(16, 52, 90, 0.2);
}

.auth-submit:active {
    transform: translateY(0);
    box-shadow: 0 6px 14px rgba(16, 52, 90, 0.2);
}

.auth-submit[disabled],
.auth-submit[aria-busy="true"] {
    opacity: .68;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.auth-switch {
    margin: 1rem 0 0;
    color: #4e6788;
    font-size: .9rem;
    text-align: center;
}

/* Footer under auth card */
.auth-footer {
    margin: .8rem 0 .2rem;
    text-align: center;
    color: #5a6f8d;
    font-size: .84rem;
}

@media (max-width: 640px) {
    .auth-shell {
        margin-top: 1rem;
        padding: .65rem;
        border-radius: 14px;
    }

    .auth-card {
        padding: 1rem;
        border-radius: 14px;
    }

    .auth-row {
        flex-wrap: wrap;
    }
}