/* -------- Auth container -------- */
#auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
    padding: 24px 18px;
}

/* -------- Form card -------- */
.auth-box {
    background: #fff;
    padding: 34px 28px;
    border-radius: 18px;
    box-shadow: 0 12px 34px rgba(10, 40, 60, 0.16);
    width: 100%;
    max-width: 400px;
    border: 1px solid #d9e8ef;
}

/* -------- Typography -------- */
.auth-title {
    text-align: left;
    font-size: 2rem;
    margin-bottom: 8px;
    color: #12263a;
}

.auth-subtitle {
    margin-bottom: 20px;
    color: #4f6574;
}

.auth-label {
    display: inline-block;
    margin-bottom: 7px;
    font-size: 0.89rem;
    font-weight: 600;
    color: #2a4356;
}

/* -------- Error message -------- */
.auth-error {
    text-align: left;
    color: #c62828;
    background: #ffecec;
    border: 1px solid #ffd0d0;
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 16px;
    font-weight: 500;
}

/* -------- Inputs -------- */
.form-group {
    margin-bottom: 16px;
}

.form-group input {
    width: 100%;
    padding: 13px 14px;
    font-size: 1rem;
    border-radius: 10px;
    border: 1px solid #bfd1dd;
    background: #fdfefe;
    transition: 0.2s ease;
}

.form-group input:focus {
    border-color: #189067;
    box-shadow: 0 0 0 4px rgba(24, 144, 103, 0.17);
    outline: none;
}

/* -------- Submit button -------- */
.btn-submit {
    width: 100%;
    padding: 12px 0;
    font-size: 1rem;
    font-weight: 700;
    background: linear-gradient(135deg, #1ea66d 0%, #17774e 100%);
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.2s ease;
    box-shadow: 0 8px 18px rgba(23, 119, 78, 0.28);
}

.btn-submit:hover {
    transform: translateY(-1px);
    background: linear-gradient(135deg, #1a955f 0%, #136842 100%);
}

.auth-alt {
    margin-top: 16px;
    text-align: center;
    color: #4a6172;
    font-size: 0.92rem;
}

.auth-alt a {
    color: #116f95;
    font-weight: 700;
    text-decoration: none;
}

.auth-alt a:hover {
    text-decoration: underline;
}

/* -------- Signin split visual -------- */
#auth-container.auth-split {
    max-width: 980px;
    margin: 20px auto 0;
    align-items: stretch;
    gap: 16px;
    border-radius: 22px;
    border: 1px solid #d5e2e8;
    overflow: hidden;
    background: linear-gradient(125deg, #f8fcff 0%, #f1f9f5 55%, #fef6ea 100%);
    box-shadow: 0 14px 32px rgba(14, 36, 55, 0.12);
}

.auth-visual {
    flex: 1.05;
    padding: 30px 28px;
    position: relative;
    background:
        radial-gradient(circle at 88% 14%, rgba(67, 170, 255, 0.22) 0%, transparent 36%),
        radial-gradient(circle at 18% 87%, rgba(63, 202, 137, 0.18) 0%, transparent 35%);
}

.auth-chip {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: #0e678c;
    background: #e8f5ff;
    border: 1px solid #cbe5f5;
    border-radius: 999px;
    padding: 6px 10px;
    margin-bottom: 14px;
}

.auth-visual-title {
    margin: 0 0 12px;
    text-align: left;
    color: #0f2a3b;
    font-size: 2rem;
    line-height: 1.15;
}

.auth-visual-text {
    margin: 0;
    color: #3e5968;
    line-height: 1.55;
}

.auth-visual-grid {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.auth-visual-grid article {
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid #d4e5ec;
    border-radius: 12px;
    padding: 12px;
}

.auth-visual-grid strong {
    color: #0f4a69;
    font-size: 0.93rem;
}

.auth-visual-grid p {
    margin: 6px 0 0;
    color: #4d6674;
    font-size: 0.9rem;
    line-height: 1.4;
}

#auth-container.auth-split .auth-box {
    flex: 0.95;
    max-width: none;
    border-radius: 16px;
    margin: 10px;
}

@media (max-width: 900px) {
    #auth-container.auth-split {
        flex-direction: column;
        max-width: 560px;
        gap: 0;
    }

    .auth-visual {
        padding: 22px 20px;
    }

    .auth-visual-title {
        font-size: 1.72rem;
    }

    #auth-container.auth-split .auth-box {
        margin: 0;
        border-radius: 0;
        border-top: 1px solid #d7e6ec;
    }
}

@media (max-width: 520px) {
    #auth-container {
        min-height: 0;
        padding: 14px 10px;
    }

    .auth-box {
        padding: 22px 16px;
    }

    .auth-title {
        font-size: 1.7rem;
    }

    .auth-visual-grid {
        grid-template-columns: 1fr;
    }
}