* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: #e5edf6;
    background: #07111f;
}
.shell {
    width: min(1220px, calc(100% - 32px));
    margin: 0 auto;
    padding: 22px 0 50px;
}
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
}
.brand {
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 12px;
}
.brand img {
    display: block;
    width: 118px;
    height: auto;
    background: #fff;
    border-radius: 6px;
    padding: 5px 8px;
}
.topbar a {
    color: #9bdcff;
    margin-left: 16px;
    text-decoration: none;
    font-weight: 700;
}
.hero, .panel, .login-panel, .provider {
    background: #0d1b2d;
    border: 1px solid #22324a;
    border-radius: 8px;
    box-shadow: 0 18px 40px rgba(0,0,0,.28);
}
.hero {
    padding: 24px;
    margin-bottom: 18px;
}
h1, h2, h3 { margin-top: 0; }
.search {
    display: grid;
    gap: 10px;
}
.search h2 {
    font-size: 16px;
    margin: 0 0 2px;
    color: #dbeafe;
}
.lookup-grid {
    display: grid;
    grid-template-columns: minmax(260px, 520px) minmax(260px, 520px);
    gap: 18px;
    align-items: start;
}
input {
    width: 100%;
    padding: 12px;
    border-radius: 5px;
    border: 1px solid #33465f;
    background: #07111f;
    color: #fff;
    font: inherit;
}
button {
    border: 0;
    border-radius: 5px;
    background: #029cdc;
    color: #fff;
    padding: 12px 18px;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}
.google-button {
    display: block;
    text-align: center;
    margin: 14px 0;
    padding: 12px 16px;
    border-radius: 5px;
    background: #fff;
    color: #111827;
    text-decoration: none;
    font-weight: 800;
}
.panel, .login-panel { padding: 20px; margin-bottom: 18px; }
.login-panel {
    max-width: 420px;
    margin: 70px auto;
}
.login-logo {
    display: block;
    width: min(260px, 100%);
    height: auto;
    margin: 0 auto 18px;
    background: #fff;
    border-radius: 8px;
    padding: 10px 14px;
}
.login-panel form {
    display: grid;
    gap: 14px;
}
label {
    display: grid;
    gap: 7px;
    color: #b8c7d9;
}
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}
.provider { padding: 18px; }
.provider-warning {
    background: #3f1111;
    border: 1px solid #ef4444;
    border-radius: 8px;
    color: #fecaca;
    font-weight: 800;
    line-height: 1.35;
    margin: 0 0 14px;
    padding: 10px 12px;
}
.logo {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    padding: 0 12px;
    margin-bottom: 12px;
    border-radius: 5px;
    font-weight: 900;
    letter-spacing: .02em;
}
.openeir .logo { background: #f15a24; color: #fff; text-transform: lowercase; }
.siro .logo { background: #7c3aed; color: #fff; }
.nbi .logo { background: #13a538; color: #fff; }
dl {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 8px 12px;
    margin: 0;
}
dt { color: #9fb1c8; font-weight: 700; }
dd { margin: 0; color: #fff; }
.muted { color: #98a7ba; }
.error { color: #fca5a5; }
.notice {
    background: #10243a;
    border: 1px solid #2d4564;
    border-radius: 8px;
    color: #dbeafe;
    padding: 12px 14px;
}
.choice-list {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}
.choice-list a {
    background: #10243a;
    border: 1px solid #2d4564;
    border-radius: 8px;
    color: #e5eef9;
    padding: 12px 14px;
    text-decoration: none;
}
.choice-list a:hover {
    border-color: #38bdf8;
    color: #ffffff;
}
.products {
    padding-left: 18px;
    margin-bottom: 0;
}
.products span {
    display: block;
    color: #7dd3fc;
    font-weight: 800;
    margin-top: 3px;
}
#roi-map {
    height: 360px;
    margin-top: 16px;
    border-radius: 8px;
    border: 1px solid #22324a;
}
#ni-map {
    height: 340px;
    margin-top: 16px;
    border-radius: 8px;
    border: 1px solid #22324a;
}
.ni-results {
    display: grid;
    gap: 14px;
}
.ni-card {
    border: 1px solid #22324a;
    border-radius: 8px;
    padding: 16px;
    background: #09182a;
}
.ni-card h3 {
    font-size: 18px;
    line-height: 1.35;
}
.exchange-line {
    background: #09182a;
    border: 1px solid #22324a;
    border-radius: 8px;
    color: #dbeafe;
    line-height: 1.55;
    margin-bottom: 16px;
    padding: 12px 14px;
}
.exchange-line strong {
    color: #ffffff;
}
.exchange-marker {
    align-items: center;
    border: 2px solid #ffffff;
    border-radius: 999px;
    box-shadow: 0 8px 18px rgba(0,0,0,.35);
    color: #07111f;
    display: flex;
    font-size: 12px;
    font-weight: 900;
    justify-content: center;
}
.exchange-marker.serving {
    background: #f59e0b;
}
.exchange-marker.nearest {
    background: #22c55e;
}
.exchange-marker.nbi-poh {
    background: #13a538;
    color: #ffffff;
}
@media (max-width: 760px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
        gap: 14px;
    }
    .topbar a {
        margin: 0 14px 0 0;
    }
    .lookup-grid {
        grid-template-columns: 1fr;
    }
    dl {
        grid-template-columns: 1fr;
    }
}