.auth-shell {
    min-height: calc(100vh - 120px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    background: linear-gradient(135deg, #edf5fb 0%, #f8fbff 100%);
}

.auth-surface {
    width: min(1180px, 100%);
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    background: #fff;
    border: 1px solid rgba(17, 86, 130, 0.08);
    border-radius: 32px;
    overflow: hidden;
    box-shadow: 0 28px 72px rgba(10, 43, 73, 0.15);
}

.auth-visual {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 3rem 2.2rem;
    color: #fff;
    background: linear-gradient(180deg, rgba(6, 29, 53, 0.88), rgba(16, 59, 97, 0.94)), url('../Images/hero-cleaning.jpg') center/cover no-repeat;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    margin-bottom: 1.2rem;
    padding: 0.55rem 0.9rem;
    border: 1px solid rgba(159, 227, 229, 0.35);
    border-radius: 999px;
    background: rgba(100, 214, 211, 0.18);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.auth-visual h1 {
    margin: 0 0 1rem;
    color: #fff;
    font-size: clamp(2.2rem, 3vw, 3.1rem);
    line-height: 1.1;
}

.auth-visual p {
    margin-bottom: 1.5rem;
    color: rgba(234, 241, 249, 0.8);
    font-size: 1.04rem;
    line-height: 1.8;
}

.auth-visual ul {
    display: grid;
    gap: 0.8rem;
    margin: 0;
    padding: 0;
    color: #dfeefb;
    list-style: none;
}

.auth-visual li::before {
    content: "✓";
    margin-right: 0.6rem;
    color: #64d6d3;
    font-weight: 800;
}

.auth-panel {
    padding: 2.4rem 2rem;
    background: #fff;
}

.auth-header {
    margin-bottom: 1.5rem;
}

.auth-header h2 {
    margin: 0.2rem 0 0;
    color: #112d47;
    font-size: 2rem;
}

.auth-header p {
    margin: 0.75rem 0 0;
    color: #60778d;
    line-height: 1.6;
}

.eyebrow {
    display: inline-block;
    color: #2b6c9d;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.eyebrow.accent {
    color: #1b8ac2;
}

.auth-form {
    display: grid;
    gap: 0.5rem;
}

.primary-auth-btn {
    width: 100%;
    padding: 1rem 1.2rem;
    border: none;
    border-radius: 14px;
    color: #fff;
    background: linear-gradient(135deg, #1e6fa8 0%, #1ab6d6 100%);
    box-shadow: 0 18px 28px rgba(29, 138, 202, 0.22);
    font-weight: 800;
}

.primary-auth-btn:hover {
    filter: brightness(1.04);
}

.primary-auth-btn:focus-visible {
    outline: 3px solid rgba(26, 182, 214, 0.32);
    outline-offset: 3px;
}

.auth-links {
    display: grid;
    gap: 0.6rem;
    margin-top: 1.1rem;
    font-size: 0.96rem;
}

.auth-links a {
    color: #1a5c8d;
    font-weight: 600;
    text-decoration: none;
}

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

@media (max-width: 900px) {
    .auth-surface {
        grid-template-columns: 1fr;
    }

    .auth-visual {
        min-height: 260px;
    }
}

@media (max-width: 520px) {
    .auth-shell {
        padding: 1.5rem 0.75rem;
    }

    .auth-surface {
        border-radius: 22px;
    }

    .auth-visual,
    .auth-panel {
        padding: 2rem 1.35rem;
    }
}