```css
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    min-height: 100%;
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, Arial, sans-serif;
    background: #f5f8fc;
    color: #172033;
}
.password-wrap {
    position: relative;
}

.password-wrap input {
    padding-right: 75px;
}

.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: auto;
    margin: 0;
    padding: 6px 8px;
    background: transparent;
    color: #155eef;
    font-size: 12px;
    border: none;
    cursor: pointer;
}
body {
    min-height: 100vh;
}

.page-wrapper {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 48% 52%;
}

/* =========================
   LEFT INFORMATION PANEL
========================= */

.info-panel {
    position: relative;
    min-height: 100vh;
    padding: 55px 7%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;

    background:
        radial-gradient(circle at 15% 20%, rgba(43, 137, 255, .22), transparent 30%),
        radial-gradient(circle at 90% 80%, rgba(0, 197, 255, .12), transparent 30%),
        linear-gradient(145deg, #061b3a, #0a3670 55%, #0b6cff);
    color: #fff;
}

.info-panel::before {
    content: "";
    position: absolute;
    width: 430px;
    height: 430px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,.08);
    right: -180px;
    top: -150px;
}

.info-panel::after {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,.06);
    left: -150px;
    bottom: -130px;
}

.brand {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 13px;
}

.brand-logo {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;

    background: rgba(255,255,255,.14);
    border: 1px solid rgba(255,255,255,.22);

    color: #fff;
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 1px;

    box-shadow: 0 10px 30px rgba(0,0,0,.15);
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.brand-text strong {
    font-size: 17px;
    letter-spacing: 1.5px;
}

.brand-text span {
    margin-top: 4px;
    font-size: 10px;
    letter-spacing: 2.2px;
    opacity: .72;
}

.info-content {
    position: relative;
    z-index: 2;
    max-width: 590px;
    margin: auto 0;
    padding: 55px 0;
}

.welcome-label,
.auth-label {
    display: inline-block;
    color: #68c5ff;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
}

.info-content h1 {
    margin-top: 18px;
    font-size: clamp(38px, 4vw, 62px);
    line-height: 1.06;
    font-weight: 750;
    letter-spacing: -2px;
}

.info-content h1 span {
    color: #63c6ff;
}

.info-content > p {
    max-width: 520px;
    margin-top: 25px;
    color: rgba(255,255,255,.72);
    font-size: 16px;
    line-height: 1.75;
}

.feature-list {
    margin-top: 38px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 14px;
}

.feature-icon {
    width: 42px;
    height: 42px;
    flex-shrink: 0;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 12px;
    background: rgba(255,255,255,.10);
    border: 1px solid rgba(255,255,255,.10);

    color: #6dd0ff;
    font-size: 18px;
    font-weight: 700;
}

.feature strong {
    display: block;
    font-size: 14px;
}

.feature small {
    display: block;
    margin-top: 4px;
    color: rgba(255,255,255,.55);
    font-size: 12px;
}

.info-footer {
    position: relative;
    z-index: 2;
    color: rgba(255,255,255,.42);
    font-size: 11px;
}


/* =========================
   RIGHT AUTH PANEL
========================= */

.auth-panel {
    min-height: 100vh;
    padding: 35px 8%;
    display: flex;
    align-items: center;
    justify-content: center;

    background: #f8fafc;
}

.auth-box {
    width: 100%;
    max-width: 450px;
}

/* Mobile brand hidden on desktop */

.mobile-brand {
    display: none;
}


/* =========================
   AUTH HEADER
========================= */

.auth-header {
    margin-bottom: 28px;
}

.auth-header h2 {
    margin-top: 8px;
    color: #172033;
    font-size: 32px;
    line-height: 1.2;
    letter-spacing: -.8px;
}

.auth-header p {
    margin-top: 10px;
    color: #788397;
    font-size: 14px;
    line-height: 1.6;
}


/* =========================
   ALERTS
========================= */

.alert {
    padding: 13px 15px;
    margin-bottom: 20px;
    border-radius: 10px;
    font-size: 13px;
    line-height: 1.5;
}

.alert-error {
    background: #fff1f2;
    border: 1px solid #fecdd3;
    color: #be123c;
}

.alert-success {
    background: #ecfdf5;
    border: 1px solid #bbf7d0;
    color: #15803d;
}


/* =========================
   FORM
========================= */

.form-group {
    margin-bottom: 21px;
}

.form-group label,
.password-label label {
    display: block;
    margin-bottom: 8px;

    color: #344054;
    font-size: 13px;
    font-weight: 650;
}

.password-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.password-label label {
    margin-bottom: 8px;
}

.password-label a {
    margin-bottom: 8px;
    color: #0b6cff;
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
}

.password-label a:hover {
    text-decoration: underline;
}

.form-group input {
    width: 100%;
    height: 52px;

    padding: 0 16px;

    border: 1px solid #d8e0ea;
    border-radius: 11px;

    outline: none;

    background: #fff;
    color: #172033;

    font-size: 14px;

    transition:
        border-color .2s ease,
        box-shadow .2s ease,
        background .2s ease;
}

.form-group input::placeholder {
    color: #a4adba;
}

.form-group input:hover {
    border-color: #b9c5d4;
}

.form-group input:focus {
    border-color: #0b6cff;
    background: #fff;

    box-shadow:
        0 0 0 4px rgba(11,108,255,.09);
}


/* =========================
   LOGIN BUTTON
========================= */

.login-btn {
    width: 100%;
    height: 53px;

    margin-top: 3px;

    border: none;
    border-radius: 11px;

    background: linear-gradient(
        135deg,
        #0b6cff,
        #0757d9
    );

    color: #fff;

    font-size: 14px;
    font-weight: 700;
    letter-spacing: .2px;

    cursor: pointer;

    box-shadow:
        0 10px 22px rgba(11,108,255,.20);

    transition:
        transform .2s ease,
        box-shadow .2s ease,
        opacity .2s ease;
}

.login-btn:hover {
    transform: translateY(-1px);

    box-shadow:
        0 14px 28px rgba(11,108,255,.27);
}

.login-btn:active {
    transform: translateY(0);
}


/* =========================
   DIVIDER
========================= */

.divider {
    display: flex;
    align-items: center;
    gap: 13px;

    margin: 28px 0;
}

.divider::before,
.divider::after {
    content: "";
    height: 1px;
    flex: 1;

    background: #e5eaf0;
}

.divider span {
    color: #9aa5b4;
    font-size: 10px;
    font-weight: 700;
}


/* =========================
   SIGNUP
========================= */

.signup-text {
    text-align: center;
    color: #7a8595;
    font-size: 13px;
}

.signup-text a {
    margin-left: 4px;
    color: #0b6cff;
    font-weight: 700;
    text-decoration: none;
}

.signup-text a:hover {
    text-decoration: underline;
}


/* =========================
   SECURITY BOX
========================= */

.security-note {
    display: flex;
    align-items: flex-start;
    gap: 12px;

    margin-top: 28px;
    padding: 15px;

    border: 1px solid #e4eaf1;
    border-radius: 12px;

    background: #f9fbfd;
}

.security-note > span {
    width: 32px;
    height: 32px;
    flex-shrink: 0;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 9px;

    background: #eaf3ff;
    font-size: 14px;
}

.security-note strong {
    display: block;
    color: #344054;
    font-size: 12px;
}

.security-note small {
    display: block;
    margin-top: 3px;

    color: #8a95a5;
    font-size: 11px;
    line-height: 1.5;
}


/* =========================
   TABLET
========================= */

@media (max-width: 950px) {

    .page-wrapper {
        grid-template-columns: 42% 58%;
    }

    .info-panel {
        padding: 40px 6%;
    }

    .info-content h1 {
        font-size: 40px;
    }

    .auth-panel {
        padding: 35px 6%;
    }
}


/* =========================
   MOBILE
========================= */

@media (max-width: 720px) {

    .page-wrapper {
        display: block;
        min-height: 100vh;
    }

    .info-panel {
        display: none;
    }

    .auth-panel {
        min-height: 100vh;
        padding: 25px 20px 35px;

        align-items: flex-start;
    }

    .auth-box {
        max-width: 460px;
        margin: 0 auto;
        padding-top: 5px;
    }

    .mobile-brand {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 11px;

        margin-bottom: 42px;
    }

    .mobile-brand .brand-logo {
        width: 46px;
        height: 46px;

        background: linear-gradient(
            135deg,
            #0b6cff,
            #0649b7
        );

        border: none;
        box-shadow: 0 8px 20px rgba(11,108,255,.18);
    }

    .mobile-brand .brand-text {
        color: #172033;
    }

    .mobile-brand .brand-text strong {
        font-size: 15px;
    }

    .mobile-brand .brand-text span {
        color: #788397;
        font-size: 8px;
    }

    .auth-header {
        margin-bottom: 25px;
    }

    .auth-header h2 {
        font-size: 28px;
    }

    .form-group input {
        height: 54px;
    }

    .login-btn {
        height: 54px;
    }
}


/* =========================
   SMALL MOBILE
========================= */

@media (max-width: 380px) {

    .auth-panel {
        padding-left: 16px;
        padding-right: 16px;
    }

    .mobile-brand {
        margin-bottom: 32px;
    }

    .auth-header h2 {
        font-size: 25px;
    }

    .auth-header p {
        font-size: 13px;
    }
}
```