.login-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    background: #eef2f8;
}

.hero-panel {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #6d7d97 0%, #53627b 100%);
    color: #fff;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.22) 1px, transparent 1px);
    background-size: 14px 14px;
    mask-image: radial-gradient(circle at 0 0, #000 0%, transparent 64%);
    opacity: 0.7;
}

.hero-content {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding: 80px 64px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 18px;
}

.brand-mark {
    font-size: 54px;
}

.brand h1 {
    margin: 0;
    font-size: 52px;
    line-height: 1.1;
}

.brand p {
    margin: 12px 0 0;
    font-size: 24px;
    opacity: 0.95;
}

.hero-copy {
    max-width: 520px;
    font-size: 18px;
    line-height: 1.8;
}

.login-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: #fbfcfe;
}

.login-card {
    width: min(620px, 100%);
    background: rgba(255, 255, 255, 0.96);
    border-radius: 28px;
    padding: 48px 56px;
    box-shadow: 0 18px 48px rgba(24, 41, 79, 0.08);
    text-align: center;
}

.login-card h2 {
    margin: 0 0 48px;
    font-size: 42px;
    color: #24324d;
}

.code-wrapper {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 12px;
    margin-bottom: 30px;
    font-size: 24px;
    font-weight: 700;
}

.code-wrapper strong {
    font-size: clamp(58px, 7vw, 92px);
    line-height: 1;
    letter-spacing: 4px;
    color: #202632;
}

.hint,
.help,
.expire-text,
.login-status,
.contact-box {
    font-size: 18px;
    line-height: 1.7;
    color: #41506b;
}

.help a {
    color: #4a8bff;
    text-decoration: none;
}

.refresh-button {
    border: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, #4a7bdf 0%, #3156a8 100%);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    padding: 14px 24px;
    margin-top: 16px;
}

.login-status {
    margin: 22px 0;
    color: #3156a8;
    font-weight: 600;
}

.contact-box {
    margin-top: 44px;
    font-size: 20px;
    font-weight: 700;
    color: #24324d;
}

@media (max-width: 1080px) {
    .login-shell {
        grid-template-columns: 1fr;
    }

    .hero-content {
        min-height: auto;
        gap: 36px;
    }
}

@media (max-width: 720px) {
    .hero-content,
    .login-panel {
        padding: 32px 24px;
    }

    .login-card {
        padding: 32px 24px;
    }

    .brand h1 {
        font-size: 36px;
    }
}