:root {
    --bg: #0d1117;
    --bg2: #161b22;
    --bg3: #21262d;
    --ink: #e6edf3;
    --muted: #7d8590;
    --line: #30363d;
    --mono: 'DM Mono', 'Courier New', monospace;
    --plat: #1A3A5C;
    --gold: #B8860B;
    --silver: #666666;
    --bronze: #CD7F32;
    --copper: #C8401A;
    --red: #C8401A;
}

body {
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, sans-serif;
    font-size: 14px;
    min-height: 100vh;
}

nav {
    background: var(--bg2);
    border-bottom: 1px solid var(--line);
    padding: 10px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-right {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.tier-btn {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .06em;
    padding: 4px 12px;
    border-radius: 3px;
    border: 1px solid transparent;
    cursor: pointer;
    background: transparent;
    color: var(--muted);
    transition: all .15s;
}

.tier-btn.active {
    color: #fff;
}

.tier-btn[data-tier="ALL"].active {
    background: var(--bg3);
    border-color: var(--line);
    color: var(--ink);
}

.tier-btn[data-tier="5"].active {
    background: var(--plat);
    border-color: var(--plat);
}

.tier-btn[data-tier="4"].active {
    background: var(--gold);
    border-color: var(--gold);
}

.tier-btn[data-tier="3"].active {
    background: var(--silver);
    border-color: var(--silver);
}

.tier-btn[data-tier="2"].active {
    background: var(--bronze);
    border-color: var(--bronze);
}

.tier-btn[data-tier="1"].active {
    background: var(--copper);
    border-color: var(--copper);
}

input#search {
    background: var(--bg3);
    border: 1px solid var(--line);
    border-radius: 4px;
    color: var(--ink);
    font-family: Arial, sans-serif;
    font-size: 13px;
    padding: 5px 10px;
    width: 160px;
}

input#search::placeholder {
    color: var(--muted);
}

.header-panel {
    padding: 24px;
    border-bottom: 1px solid var(--line);
    background: var(--bg2);
}

.module-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 4px;
}

.module-sub {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 16px;
}

.tier-summary {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tier-card {
    border-radius: 4px;
    padding: 10px 16px;
    min-width: 110px;
    text-align: center;
}

.tier-card .tc-count {
    font-family: var(--mono);
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    line-height: 1.1;
}

.tier-card .tc-name {
    font-size: 11px;
    color: rgba(255, 255, 255, .7);
    margin-top: 2px;
}

.table-wrap {
    padding: 0 24px 24px;
}

#city-count {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    padding: 14px 0 8px;
}

#city-count em {
    color: var(--ink);
    font-style: normal;
    font-weight: 700;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--muted);
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

th:hover {
    color: var(--ink);
}

th.sorted {
    color: var(--ink);
}

td {
    padding: 8px 10px;
    border-bottom: 1px solid rgba(255, 255, 255, .04);
    vertical-align: middle;
    white-space: nowrap;
}

tr:hover td {
    background: var(--bg2);
}

tr.selected td {
    background: var(--bg3);
}

tr.selected td.c-city {
    color: #f0c060;
}

.c-rank {
    width: 40px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--muted);
}

.c-city {
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
}

.c-country {
    color: var(--muted);
    font-size: 13px;
}

.c-tier {
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .06em;
}

.c-ummi {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 700;
}

.c-dom {
    width: 30px;
    text-align: center;
}

.dom-cell {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 20px;
    border-radius: 2px;
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
}

#detail {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg2);
    border-top: 2px solid var(--red);
    z-index: 300;
    transform: translateY(100%);
    transition: transform .3s ease;
    max-height: 60vh;
    overflow-y: auto;
}

#detail.open {
    transform: translateY(0);
}

.detail-inner {
    display: grid;
    grid-template-columns: 220px 1fr;
    min-height: 200px;
}

.detail-meta {
    padding: 20px;
    border-right: 1px solid var(--line);
}

.d-city {
    font-size: 22px;
    font-weight: 700;
    color: var(--ink);
}

.d-country {
    font-size: 12px;
    color: var(--muted);
    margin-top: 2px;
}

.d-tier-label {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    margin-top: 12px;
    letter-spacing: .06em;
}

.d-ummi {
    font-family: var(--mono);
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    margin-top: 4px;
}

.d-ummi-sub {
    font-size: 11px;
    color: var(--muted);
    margin-top: 2px;
}

.close-btn {
    margin-top: 16px;
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 700;
    background: transparent;
    border: 1px solid var(--red);
    color: var(--red);
    padding: 5px 12px;
    border-radius: 3px;
    cursor: pointer;
    letter-spacing: .06em;
}

.close-btn:hover {
    background: rgba(200, 64, 26, .1);
}

.detail-domains {
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 8px;
}

.dom-row {
    background: var(--bg3);
    border-radius: 4px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dom-name {
    font-size: 12px;
    color: var(--muted);
    flex: 1;
    margin-right: 8px;
}

.dom-bar-wrap {
    width: 50px;
    height: 4px;
    background: var(--bg2);
    border-radius: 2px;
    margin-right: 8px;
}

.dom-bar {
    height: 4px;
    border-radius: 2px;
}

.dom-score {
    font-family: var(--mono);
    font-size: 13px;
    font-weight: 700;
    min-width: 28px;
    text-align: right;
}

.badge5 {
    display: inline-block;
    font-family: var(--mono);
    font-size: 8px;
    font-weight: 700;
    padding: 1px 4px;
    border-radius: 2px;
    background: var(--plat);
    color: #fff;
    margin-left: 4px;
    vertical-align: middle;
}

#empty {
    text-align: center;
    padding: 48px;
    font-family: var(--mono);
    font-size: 12px;
    color: var(--muted);
    display: none;
}

.tooltip-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.tooltip-wrap .tt {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    background: #1e2336;
    border: 1px solid #30363d;
    border-radius: 4px;
    padding: 10px 14px;
    width: 260px;
    font-size: 11px;
    line-height: 1.6;
    color: #e6edf3;
    font-family: Arial, sans-serif;
    font-weight: normal;
    z-index: 9999;
    pointer-events: auto;
    transition: opacity .15s;
    white-space: normal;
    text-align: left;
    box-shadow: 0 4px 20px rgba(0, 0, 0, .6);
}

.tooltip-wrap .tt::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 8px;
    background: transparent;
}

.tooltip-wrap:hover .tt,
.tooltip-wrap .tt:hover {
    visibility: visible;
    opacity: 1;
}

.tt-level {
    font-family: 'DM Mono', 'Courier New', monospace;
    font-size: 9px;
    color: #7d8590;
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-bottom: 5px;
}