:root {
    --bg: #080c08;
    --bg2: #0d130d;
    --bg3: #111911;
    --border: #1e2e1e;
    --green: #39ff14;
    --green-dim: #1a7a08;
    --green-mid: #22cc0a;
    --red: #ff3b30;
    --text: #c8e6c8;
    --muted: #4a6b4a;
    --font-mono: 'JetBrains Mono', monospace;
    --font-disp: 'Syne', sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    height: 100%;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scanline overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.08) 2px,
            rgba(0, 0, 0, 0.08) 4px);
    pointer-events: none;
    z-index: 1000;
}

/* ── Header ── */
header {
    border-bottom: 1px solid var(--border);
    padding: 20px 24px 16px;
    display: flex;
    align-items: flex-end;
    gap: 20px;
    position: relative;
}

header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100px;
    height: 1px;
    background: var(--green);
    box-shadow: 0 0 12px var(--green);
}

.logo {
    font-family: var(--font-disp);
    font-size: 20px;
    font-weight: 800;
    color: var(--green);
    text-shadow: 0 0 20px rgba(57, 255, 20, 0.4);
    letter-spacing: -0.5px;
    white-space: nowrap;
}

.logo span {
    color: var(--muted);
    font-weight: 700;
}

.header-meta {
    font-size: 11px;
    color: var(--muted);
    padding-bottom: 1px;
    word-break: break-word;
}

.header-meta b {
    color: var(--green-mid);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px var(--green);
    display: inline-block;
    margin-right: 6px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 8px var(--green);
    }

    50% {
        opacity: 0.5;
        box-shadow: 0 0 3px var(--green);
    }
}

.controls {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.days-label {
    color: var(--muted);
    font-size: 11px;
}

select {
    background: var(--bg2);
    border: 1px solid var(--border);
    color: var(--green-mid);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 4px 8px;
    cursor: pointer;
    outline: none;
    appearance: none;
}

select:hover {
    border-color: var(--green-dim);
}

.btn-refresh {
    background: none;
    border: 1px solid var(--green-dim);
    color: var(--green-mid);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 4px 10px;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

.btn-refresh:hover {
    background: var(--green-dim);
    color: var(--green);
    box-shadow: 0 0 10px rgba(57, 255, 20, 0.2);
}

/* ── Main grid ── */
main {
    padding: 20px 24px;
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(4, 1fr);
    grid-template-areas:
        "kpi     kpi     kpi     kpi"
        "vol     vol     vol     vol"
        "ctr     svc     pth     asn"
        "tls     tls     prt     prt"
        "usr     usr     usr     usr";
    width: 100%;
}

/* ── KPI row ── */
.kpi-row {
    grid-area: kpi;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.kpi {
    background: var(--bg2);
    border: 1px solid var(--border);
    padding: 16px 18px;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(10px);
    animation: fadeUp 0.35s ease forwards;
}

.kpi::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--green), transparent);
}

.kpi-label {
    font-size: 10px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 6px;
}

.kpi-value {
    font-family: var(--font-disp);
    font-size: 30px;
    font-weight: 800;
    color: var(--green);
    text-shadow: 0 0 20px rgba(57, 255, 20, 0.3);
    line-height: 1;
    margin-bottom: 4px;
}

.kpi-sub {
    font-size: 11px;
    color: var(--muted);
}

/* ── Panels ── */
.panel {
    background: var(--bg2);
    border: 1px solid var(--border);
    opacity: 0;
    transform: translateY(10px);
    animation: fadeUp 0.35s ease forwards;
    min-width: 0;
    /* prevent grid blowout */
}

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

.panel-title {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--muted);
}

.panel-badge {
    font-size: 10px;
    color: var(--green-dim);
    border: 1px solid var(--green-dim);
    padding: 1px 6px;
    flex-shrink: 0;
}

.panel-body {
    padding: 14px 16px;
}

/* ── Grid area assignments ── */
.panel-volume {
    grid-area: vol;
}

.panel-countries {
    grid-area: ctr;
}

.panel-services {
    grid-area: svc;
}

.panel-paths {
    grid-area: pth;
}

.panel-asns {
    grid-area: asn;
}

.panel-tls {
    grid-area: tls;
}

.panel-protocols {
    grid-area: prt;
}

.panel-usernames {
    grid-area: usr;
}

/* ── Usernames panel: horizontal list on wide screens ── */
.panel-usernames .panel-body {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 24px;
}

/* ── Volume chart ── */
.chart-canvas-wrap {
    position: relative;
    height: 110px;
    padding: 0 2px;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 100%;
    width: 100%;
}

.bar-wrap {
    flex: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    position: relative;
    cursor: default;
    min-width: 2px;
}

.bar {
    background: var(--green-dim);
    transition: background 0.15s;
    min-height: 2px;
}

.bar-wrap:hover .bar {
    background: var(--green-mid);
    box-shadow: 0 0 6px rgba(57, 255, 20, 0.3);
}

.bar-tooltip {
    display: none;
    position: absolute;
    bottom: calc(100% + 5px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg3);
    border: 1px solid var(--border);
    padding: 3px 7px;
    font-size: 10px;
    color: var(--green);
    white-space: nowrap;
    z-index: 10;
    pointer-events: none;
}

.bar-wrap:hover .bar-tooltip {
    display: block;
}

/* Campaign overlay line */
.chart-svg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: visible;
}

.campaign-line {
    fill: none;
    stroke: #ff9500;
    stroke-width: 1.5;
    stroke-linejoin: round;
    stroke-linecap: round;
}

.campaign-dot {
    fill: #ff9500;
}

.chart-legend {
    display: flex;
    gap: 16px;
    margin-top: 8px;
    font-size: 10px;
    color: var(--muted);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.legend-swatch {
    width: 10px;
    height: 10px;
    flex-shrink: 0;
}

.legend-swatch-bar {
    background: var(--green-dim);
}

.legend-swatch-line {
    background: #ff9500;
    height: 2px;
    margin-top: 4px;
}

/* ── Ranked list ── */
.rank-list {
    list-style: none;
}

.rank-item {
    display: grid;
    grid-template-columns: 18px 1fr auto;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
}

.rank-item:last-child {
    border-bottom: none;
}

.rank-n {
    font-size: 10px;
    color: var(--muted);
    text-align: right;
}

.rank-bar-wrap {
    position: relative;
    height: 18px;
    display: flex;
    align-items: center;
    min-width: 0;
}

.rank-bar-bg {
    position: absolute;
    inset: 0;
    background: var(--bg3);
}

.rank-bar-fill {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    background: var(--green-dim);
    transition: width 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}

.rank-label {
    position: relative;
    z-index: 1;
    padding: 0 7px;
    font-size: 11px;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rank-count {
    font-size: 11px;
    color: var(--green-mid);
    font-weight: 600;
    white-space: nowrap;
}

/* ── States ── */
.loading {
    color: var(--muted);
    font-size: 11px;
    padding: 16px 0;
    text-align: center;
}

.loading::before {
    content: '> ';
    color: var(--green-dim);
}

.error-msg {
    color: var(--red);
    font-size: 11px;
    padding: 8px 0;
}

/* ── Footer ── */
footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    font-size: 10px;
    color: var(--muted);
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 4px;
}

footer a {
    color: var(--green-dim);
    text-decoration: none;
}

footer a:hover {
    color: var(--green);
}

/* ── Animations ── */
@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.kpi:nth-child(1) {
    animation-delay: 0.04s;
}

.kpi:nth-child(2) {
    animation-delay: 0.08s;
}

.kpi:nth-child(3) {
    animation-delay: 0.12s;
}

.kpi:nth-child(4) {
    animation-delay: 0.16s;
}

.panel-volume {
    animation-delay: 0.20s;
}

.panel-countries {
    animation-delay: 0.24s;
}

.panel-services {
    animation-delay: 0.28s;
}

.panel-paths {
    animation-delay: 0.32s;
}

.panel-asns {
    animation-delay: 0.36s;
}

.panel-tls {
    animation-delay: 0.40s;
}

.panel-protocols {
    animation-delay: 0.44s;
}

.panel-usernames {
    animation-delay: 0.48s;
}

/* ── Responsive ── */

/* Narrow desktop / tablet landscape: collapse to 2 cols */
@media (max-width: 1024px) {
    main {
        grid-template-columns: repeat(2, 1fr);
        grid-template-areas:
            "kpi     kpi"
            "vol     vol"
            "ctr     svc"
            "pth     asn"
            "tls     prt"
            "usr     usr";
    }

    .kpi-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .panel-usernames .panel-body {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablet portrait / large phone */
@media (max-width: 640px) {
    header {
        padding: 14px 16px;
        flex-wrap: wrap;
        gap: 10px;
    }

    .controls {
        margin-left: 0;
        width: 100%;
    }

    main {
        padding: 14px 16px;
        grid-template-columns: 1fr;
        grid-template-areas:
            "kpi"
            "vol"
            "ctr"
            "svc"
            "pth"
            "asn"
            "tls"
            "prt"
            "usr";
        gap: 12px;
    }

    .kpi-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .panel-usernames .panel-body {
        grid-template-columns: 1fr;
    }

    footer {
        padding: 14px 16px;
    }
}

/* Small phone */
@media (max-width: 360px) {
    .logo {
        font-size: 17px;
    }

    .kpi-value {
        font-size: 24px;
    }

    .kpi-row {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
}