:root {
    --oiu-navy: #0f2740;
    --oiu-azure: #0c7ea9;
    --oiu-cyan: #2db8be;
    --oiu-paper: #f5fbff;
    --oiu-ink: #12263a;
    --oiu-muted: #5a6f85;
    --oiu-danger: #d64045;
}

body.oiu-login-page {
    margin: 0;
    min-height: 100vh;
    font-family: 'Cairo', sans-serif;
    background:
        radial-gradient(circle at 8% 10%, rgba(45, 184, 190, 0.25), transparent 30%),
        radial-gradient(circle at 95% 90%, rgba(12, 126, 169, 0.3), transparent 35%),
        linear-gradient(138deg, #0a1c31 0%, #123759 44%, #155f80 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
}

.oiu-login-wrap {
    flex: 1;
    width: min(1120px, 94%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 26px;
    align-items: center;
    padding: 32px 0 24px;
}

.oiu-login-brand {
    position: relative;
    padding: 28px 24px;
    border-radius: 28px;
    background: linear-gradient(165deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    text-align: center;
}

.oiu-brand-logo {
    width: 130px;
    height: auto;
    display: block;
    margin-right: auto;
    margin-left: auto;
    margin-bottom: 22px;
}

.oiu-login-brand h1 {
    font-size: 2rem;
    line-height: 1.45;
    margin: 0 0 12px;
    font-weight: 800;
    color: #f8feff;
}

.oiu-login-brand h1 span {
    display: block;
}

.oiu-login-brand p {
    font-size: 1.05rem;
    line-height: 1.9;
    margin: 0;
    color: rgba(235, 245, 255, 0.95);
    max-width: 520px;
    margin-right: auto;
    margin-left: auto;
}

.oiu-login-card {
    background: var(--oiu-paper);
    border-radius: 26px;
    border: 1px solid rgba(255, 255, 255, 0.48);
    box-shadow: 0 28px 70px rgba(3, 14, 30, 0.35);
    color: var(--oiu-ink);
    padding: 28px;
}

.oiu-login-title {
    font-size: 1.48rem;
    font-weight: 800;
    margin: 0;
    color: var(--oiu-navy);
}

.oiu-login-subtitle {
    margin: 5px 0 22px;
    color: var(--oiu-muted);
    font-size: 0.96rem;
}

.oiu-login-card .form-label {
    font-weight: 700;
    color: #173552;
    margin-bottom: 8px;
}

.oiu-control {
    border: 1px solid #c8d9e7;
    border-radius: 12px;
    padding: 0.68rem 0.9rem;
    font-size: 0.98rem;
    background: #fff;
    color: #1a2f46;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.oiu-control:focus {
    border-color: #1a8cb4;
    box-shadow: 0 0 0 0.2rem rgba(26, 140, 180, 0.16);
}

.oiu-password-wrap {
    position: relative;
}

.oiu-password-toggle {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 10px;
    border: 0;
    background: transparent;
    color: #4f6d86;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.oiu-password-toggle:hover {
    background: #e9f5fb;
}

.oiu-remember {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #32506b;
    font-size: 0.95rem;
    margin: 14px 0 0;
}

.oiu-submit {
    margin-top: 22px;
    width: 100%;
    border: 0;
    border-radius: 12px;
    padding: 0.82rem 1rem;
    font-weight: 800;
    letter-spacing: 0.2px;
    color: #fff;
    background: linear-gradient(132deg, var(--oiu-azure) 0%, var(--oiu-cyan) 100%);
    box-shadow: 0 10px 22px rgba(17, 113, 157, 0.28);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.oiu-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 15px 28px rgba(17, 113, 157, 0.34);
}

.oiu-errors {
    border: 1px solid rgba(214, 64, 69, 0.25);
    background: rgba(214, 64, 69, 0.08);
    color: #8e1f2b;
    border-radius: 12px;
    padding: 10px 14px;
    margin-bottom: 16px;
}

.oiu-errors ul {
    margin: 0;
    padding-right: 18px;
}

.oiu-field-error {
    color: var(--oiu-danger);
    font-size: 0.85rem;
    margin-top: 6px;
    display: block;
}

.oiu-login-footer {
    text-align: center;
    color: rgba(236, 247, 255, 0.9);
    font-size: 0.9rem;
    padding: 14px 10px 20px;
}

.oiu-login-footer a {
    color: #b9f0ff;
    text-decoration: none;
}

@media (max-width: 992px) {
    .oiu-login-wrap {
        grid-template-columns: 1fr;
        gap: 16px;
        padding-top: 22px;
    }

    .oiu-login-brand {
        order: 2;
        padding: 18px;
    }

    .oiu-login-card {
        order: 1;
        padding: 22px;
    }

    .oiu-login-brand h1 {
        font-size: 1.52rem;
    }
}