:root {
    --bg: #f5f7fb;
    --panel: #ffffff;
    --ink: #17202a;
    --muted: #667085;
    --line: #d9e1ec;
    --nav: #14213d;
    --nav-soft: #1f335d;
    --accent: #0f766e;
    --accent-strong: #115e59;
    --warning: #b45309;
    --danger: #b42318;
    --ok: #15803d;
    --shadow: 0 10px 24px rgba(15, 23, 42, .08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
    font-family: "Segoe UI", Arial, sans-serif;
    display: grid;
    grid-template-columns: 270px 1fr;
    letter-spacing: 0;
}

body.login-only {
    display: block;
}

.is-hidden {
    display: none !important;
}

.login-screen {
    grid-column: 1 / -1;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: #eef3f8;
}

.login-card {
    width: min(440px, 100%);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.login-brand {
    padding: 22px;
    border-bottom: 1px solid var(--line);
}

.session-box {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    color: var(--muted);
    font-size: 13px;
}

.sidebar {
    background: var(--nav);
    color: #fff;
    padding: 22px 16px;
    min-height: 100vh;
    position: sticky;
    top: 0;
    max-height: 100vh;
    overflow-y: auto;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 8px 24px;
    border-bottom: 1px solid rgba(255,255,255,.14);
}

.brand-mark {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: #e9b949;
    color: #182033;
    font-weight: 800;
}

.brand strong,
.brand span {
    display: block;
}

.brand span {
    color: #c7d2fe;
    font-size: 13px;
    margin-top: 2px;
}

.nav {
    display: grid;
    gap: 8px;
    margin-top: 22px;
}

.nav-item {
    border: 0;
    color: #e5edf8;
    background: transparent;
    padding: 12px 10px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    cursor: pointer;
    text-align: left;
}

.nav-item:hover,
.nav-item.active {
    background: var(--nav-soft);
}

.community-subnav {
    display: grid;
    gap: 6px;
    margin: -2px 0 8px 36px;
    padding-left: 10px;
    border-left: 1px solid rgba(255,255,255,.18);
}

.subnav-item {
    border: 0;
    border-radius: 8px;
    min-height: 34px;
    padding: 7px 10px;
    background: transparent;
    color: #cbd8ea;
    cursor: pointer;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    text-align: left;
}

.subnav-item:hover,
.subnav-item.active {
    background: rgba(255,255,255,.1);
    color: #fff;
}

.icon {
    width: 26px;
    height: 26px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255,255,255,.22);
    border-radius: 6px;
    font-weight: 700;
}

.shell {
    padding: 24px;
    min-width: 0;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 22px;
}

.eyebrow {
    margin: 0 0 5px;
    color: var(--muted);
    font-size: 13px;
    text-transform: uppercase;
}

h1,
h2 {
    margin: 0;
    letter-spacing: 0;
}

h1 {
    font-size: 30px;
}

h2 {
    font-size: 18px;
}

.health {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    color: var(--muted);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--warning);
}

.health.ok .dot {
    background: var(--ok);
}

.view {
    display: none;
}

.view.active {
    display: block;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(160px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.metric,
.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.metric {
    padding: 18px;
}

.metric span {
    display: block;
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 8px;
}

.metric strong {
    font-size: 28px;
}

.grid {
    display: grid;
    gap: 18px;
}

.grid.two {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.portal-layout {
    display: grid;
    gap: 18px;
}

.panel {
    margin-bottom: 18px;
    overflow: hidden;
}

.community-page.is-hidden {
    display: none;
}

.panel-header {
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 620px;
}

th,
td {
    padding: 12px 14px;
    border-bottom: 1px solid #edf1f7;
    text-align: left;
    font-size: 14px;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-weight: 700;
    background: #fbfcfe;
}

.badge {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 4px 8px;
    border-radius: 6px;
    background: #e8f5f3;
    color: var(--accent-strong);
    font-weight: 700;
    font-size: 13px;
}

.list {
    display: grid;
    gap: 10px;
    padding: 16px 18px;
}

.list-item {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: #fff;
}

.list-item strong,
.list-item span {
    display: block;
}

.list-item span {
    color: var(--muted);
    font-size: 13px;
    margin-top: 4px;
}

.inline-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.form {
    padding: 18px;
    display: grid;
    gap: 12px;
}

.form.compact {
    border-bottom: 1px solid var(--line);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.tower-builder {
    display: grid;
    gap: 12px;
}

.tower-row {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 12px;
    background: #fbfcfe;
}

.inline-select {
    margin: 16px 18px 0;
}

label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 9px 11px;
    color: var(--ink);
    font: inherit;
}

textarea {
    min-height: 78px;
    resize: vertical;
}

input:focus,
textarea:focus {
    outline: 2px solid rgba(15, 118, 110, .2);
    border-color: var(--accent);
}

select:focus {
    outline: 2px solid rgba(15, 118, 110, .2);
    border-color: var(--accent);
}

.primary-button,
.icon-button,
.small-button {
    border: 0;
    cursor: pointer;
    border-radius: 8px;
    font-weight: 800;
}

.primary-button {
    min-height: 44px;
    padding: 0 16px;
    background: var(--accent);
    color: #fff;
}

.primary-button:hover {
    background: var(--accent-strong);
}

.icon-button {
    width: 36px;
    height: 36px;
    background: #eef4f7;
    color: var(--ink);
    font-size: 18px;
}

.small-button {
    min-height: 32px;
    padding: 0 10px;
    background: #eef4f7;
    color: var(--accent-strong);
    font-size: 13px;
}

.small-button:disabled {
    opacity: .55;
    cursor: wait;
}

.result {
    margin: 0 18px 18px;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--line);
    color: var(--muted);
    display: none;
    overflow-wrap: anywhere;
}

.result.show {
    display: block;
}

.result.ok {
    background: #ecfdf3;
    border-color: #abefc6;
    color: var(--ok);
}

.result.error {
    background: #fef3f2;
    border-color: #fecdca;
    color: var(--danger);
}

@media (max-width: 980px) {
    body {
        grid-template-columns: 1fr;
    }

    .sidebar {
        min-height: auto;
        position: static;
        max-height: none;
        padding: 14px;
    }

    .brand {
        padding-bottom: 12px;
    }

    .nav {
        grid-template-columns: repeat(9, minmax(48px, 1fr));
        overflow-x: auto;
    }

    .community-subnav {
        grid-column: 1 / -1;
        grid-auto-flow: column;
        grid-auto-columns: max-content;
        overflow-x: auto;
        margin: 0;
        padding: 4px 0 0;
        border-left: 0;
    }

    .nav-item {
        justify-content: center;
    }

    .nav-item span:last-child {
        display: none;
    }

    .metrics,
    .grid.two,
    .form-grid,
    .tower-row {
        grid-template-columns: 1fr;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }
}