@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@500;600;700&family=Inter:wght@400;500;600;700;800&family=PT+Serif:wght@400;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    /* --- skvely.net brand --- */
    --purple:       #8f1d77;
    --purple-ink:   #2a0925;
    --orange:       #ffa817;
    --orange-deep:  #cc7e00;

    /* --- světlé UI tóny --- */
    --bg:           #ffffff;
    --bg-soft:      #fbf5f9;
    --card:         #ffffff;
    --card-border:  #ecdcea;
    --text-hi:      #2a0925;
    --text-body:    #52394e;
    --text-mid:     #8a7286;
    --text-dim:     #b7a3b2;

    --good:         #1fa864;
    --warn:         #c98400;
    --bad:          #d92c50;

    --f-display: 'Rajdhani', sans-serif;
    --f-body: 'Inter', sans-serif;
    --f-serif: 'PT Serif', serif;
    --f-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text-body);
    font-family: var(--f-body);
    -webkit-font-smoothing: antialiased;
}

.wrap {
    max-width: 980px;
    margin: 0 auto;
    padding: 32px 20px 0;
}

/* ---- Purple brand strip, full page width, sits right above the header ---- */
.brand-bar {
    height: 7px;
    width: 100%;
    background: var(--purple);
}

/* ---- Header ---- */
.site-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--card-border);
}
.logo {
    height: 60px;
    width: auto;
    flex-shrink: 0;
}
.eyebrow {
    font-family: var(--f-mono);
    font-size: 13px;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--purple);
    display: flex;
    align-items: center;
    gap: 8px;
}
.eyebrow::before {
    content: '';
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--orange);
}
h1 {
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 44px;
    letter-spacing: .01em;
    margin: 0 0 6px;
    line-height: 1.05;
    color: var(--text-hi);
}
.subtitle {
    color: var(--text-mid);
    font-size: 17px;
    margin: 0 0 28px;
    max-width: 60ch;
}

/* ---- Title row + help button ---- */
.title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}
.btn-help {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card);
    border: 1.5px solid var(--purple);
    color: var(--purple);
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 19px;
    line-height: 1;
    padding: 0;
    margin-top: 4px;
}
.btn-help:hover { background: rgba(143,29,119,.08); }

/* ---- Gauge + metrics row ---- */
.gauge-row {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 20px;
    align-items: stretch;
}

.gauge-card {
    background: linear-gradient(180deg, #ffffff, var(--bg-soft));
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 16px 28px 30px;
    position: relative;
    box-shadow: 0 20px 44px rgba(143,29,119,.09);
}

.conn-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    font-family: var(--f-mono);
    font-size: 12.5px;
    color: var(--text-dim);
    margin-bottom: 10px;
}
.conn-ip b { color: var(--text-mid); font-weight: 600; }
.conn-type {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    cursor: help;
    color: var(--text-mid);
}
.conn-type .conn-icon { font-size: 14px; line-height: 1; }
.conn-type.conn-warn { color: var(--warn); font-weight: 600; }

.gauge-wrap {
    position: relative;
    max-width: 460px;
    margin: 0 auto;
}
.gauge-wrap svg { display: block; width: 100%; height: auto; }

.gauge-label {
    font-family: var(--f-serif);
    font-weight: 700;
    font-size: 25px;
    fill: #fff;
}
.gauge-label-tail {
    fill: rgba(255,255,255,.75);
    font-style: italic;
    font-family: var(--f-body);
    font-size: 14px;
}
.gauge-logo-mark {
    filter: grayscale(1) brightness(2.6);
    opacity: .3;
}
.gauge-tick-dot {
    fill: #fff;
    stroke: var(--purple-ink);
    stroke-width: 2;
    transition: fill .2s, filter .2s;
}
.gauge-tick-dot-active {
    fill: var(--orange);
    filter: drop-shadow(0 0 5px rgba(255,168,23,.9));
}
.gauge-hub {
    fill: var(--orange);
    stroke: var(--purple-ink);
    stroke-width: 4;
}
.gauge-needle {
    filter: drop-shadow(0 3px 6px rgba(0,0,0,.35));
}
.gauge-needle .needle-shape {
    fill: var(--orange);
    stroke: #fff2e0;
    stroke-width: 1;
}

.gauge-readout {
    position: absolute;
    left: 0; right: 0;
    top: 32%;
    text-align: center;
    pointer-events: none;
}
.gauge-readout .value {
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 72px;
    line-height: 1;
    letter-spacing: .01em;
    font-variant-numeric: tabular-nums;
    color: #fff;
    text-shadow: 0 2px 14px rgba(0,0,0,.35);
}
.gauge-readout .unit {
    font-family: var(--f-mono);
    font-size: 14px;
    color: rgba(255,255,255,.8);
    letter-spacing: .1em;
    margin-top: 38px;
}
.gauge-readout .phase {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--orange);
    text-transform: uppercase;
    letter-spacing: .02em;
    min-height: 18px;
    margin: 60px auto 0;
    max-width: 190px;
    line-height: 1.45;
    overflow-wrap: break-word;
    word-break: break-word;
    hyphens: auto;
}

/* ---- Live metric cards beside the gauge ---- */
.metrics {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.metric.metric-clock {
    align-items: center;
    text-align: center;
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.metric.metric-clock:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(143,29,119,.14);
    border-color: var(--purple);
}
.cc-face-wrap {
    position: relative;
    width: 64px;
    height: 64px;
    margin: 4px auto 0;
}
.cc-face { width: 100%; height: 100%; display: block; }
.cc-circle {
    fill: var(--bg-soft);
    stroke: var(--card-border);
    stroke-width: 2;
}
.cc-tick { stroke: var(--text-dim); stroke-width: 2; stroke-linecap: round; }
.cc-hand {
    stroke: var(--orange);
    stroke-width: 4;
    stroke-linecap: round;
    transition: transform 1s linear;
}
.cc-pivot { fill: var(--purple); }
.cc-digital {
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--f-mono);
    font-size: 10px;
    font-weight: 700;
    color: var(--text-hi);
    background: rgba(255,255,255,.75);
    border-radius: 6px;
    padding: 1px 4px;
    pointer-events: none;
}

.metric {
    background: var(--card);
    border: 1.5px solid var(--card-border);
    border-radius: 16px;
    padding: 16px 18px;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.m-label {
    font-family: var(--f-mono);
    font-size: 11px;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: .08em;
    transition: color .2s;
}
.m-num {
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 36px;
    margin-top: 3px;
    color: var(--text-hi);
}
.m-num small { font-size: 13px; color: var(--text-mid); font-family: var(--f-mono); }
.m-max {
    font-family: var(--f-mono);
    font-size: 11.5px;
    color: var(--text-dim);
    margin-top: 4px;
}
.m-max b { color: var(--text-mid); font-weight: 600; }
.m-max small { font-size: 11px; }

.metric.active {
    transform: scale(1.08);
    border-color: var(--orange);
    background: linear-gradient(180deg, #fff8ec, #fff);
    box-shadow: 0 10px 26px rgba(255,168,23,.28);
    z-index: 1;
}
.metric.active .m-label { color: var(--orange-deep); }
.metric.active .m-num { color: var(--purple); }

/* ---- Controls ---- */
.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-top: 22px;
    padding-top: 20px;
    border-top: 1px solid var(--card-border);
}
.field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    color: var(--text-mid);
}
select {
    background: #fff;
    color: var(--text-hi);
    border: 1.5px solid var(--card-border);
    border-radius: 10px;
    padding: 10px 12px;
    font-family: var(--f-body);
    font-size: 15px;
    min-width: 190px;
}
.controls-note {
    text-align: center;
    font-size: 12px;
    color: var(--text-dim);
    margin: 6px 0 0;
}

.full-test-note {
    text-align: center;
    font-size: 12.5px;
    color: var(--text-dim);
    margin: 2px 0 0;
}

/* ---- Server picker (checkbox list before "Kompletní test") ---- */
.server-picker {
    margin-top: 18px;
    padding: 16px 18px 18px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 14px;
}
.sp-title {
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 15px;
    color: var(--text-hi);
    margin-bottom: 10px;
}
.sp-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 8px 16px;
    margin-bottom: 14px;
}
.sp-item {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 14px;
    color: var(--text-body);
    cursor: pointer;
}
.sp-item input[type="checkbox"] {
    width: 17px;
    height: 17px;
    accent-color: var(--purple);
    cursor: pointer;
    flex-shrink: 0;
}
.sp-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    flex-wrap: wrap;
}
.sp-actions button {
    padding: 10px 20px;
    font-size: 14px;
}

.actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-top: 24px;
}
button {
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 19px;
    letter-spacing: .02em;
    border-radius: 14px;
    padding: 17px 38px;
    border: none;
    cursor: pointer;
    transition: transform .12s, box-shadow .12s, opacity .12s;
}
button:active { transform: translateY(1px); }
button:disabled { opacity: .45; cursor: not-allowed; }

.btn-primary {
    background: linear-gradient(180deg, #ffbf52, var(--orange));
    color: #2a1400;
    box-shadow: 0 10px 28px rgba(255,168,23,.4);
}
.btn-primary:hover:not(:disabled) { box-shadow: 0 12px 32px rgba(255,168,23,.55); }

.btn-test-main {
    width: 100%;
    max-width: 340px;
    font-size: 28px;
    padding: 26px 38px;
    letter-spacing: .03em;
}

.btn-secondary {
    background: transparent;
    color: var(--purple);
    border: 1.5px solid var(--purple);
}
.btn-secondary:hover:not(:disabled) { background: rgba(143,29,119,.08); }

.btn-ghost {
    background: var(--bg-soft);
    color: var(--text-body);
    border: 1px solid var(--card-border);
    font-family: var(--f-body);
    font-weight: 600;
    font-size: 14px;
    padding: 11px 20px;
}

/* ---- Live chart (progressive values while measuring) ---- */
.chart-card {
    margin-top: 20px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 14px 18px 10px;
}
.chart-card.chart-inline {
    margin-top: 20px;
    box-shadow: 0 8px 20px rgba(143,29,119,.08);
}
.chart-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--f-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--text-mid);
    margin-bottom: 8px;
}
.chart-legend {
    display: flex;
    align-items: center;
    gap: 6px;
    text-transform: none;
    letter-spacing: 0;
    font-size: 12px;
}
.lg-dot {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    margin-left: 10px;
}
.lg-dot:first-child { margin-left: 0; }
.lg-dl { background: var(--orange); }
.lg-ul { background: var(--purple); }
#liveChart {
    display: block;
    width: 100%;
    height: 140px;
}
.chart-note {
    text-align: center;
    font-size: 11px;
    color: var(--text-dim);
    margin: 6px 0 0;
}

/* ---- Log panel (kept dark, reads like a console; collapsible) ---- */
.log-card {
    margin-top: 22px;
    background: #1c0e1a;
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
}
.log-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 18px;
    border-bottom: 1px solid rgba(255,255,255,.08);
    font-family: var(--f-mono);
    font-size: 12px;
    color: #cbb3c6;
    text-transform: uppercase;
    letter-spacing: .08em;
    cursor: pointer;
    user-select: none;
}
.log-toggle-hint {
    font-size: 11px;
    text-transform: none;
    letter-spacing: 0;
    color: var(--orange);
    display: flex;
    align-items: center;
    gap: 4px;
}
.chev { transition: transform .2s; display: inline-block; }
.log-card.expanded .chev { transform: rotate(180deg); }
.log-card.expanded .log-toggle-hint { visibility: hidden; }
.log-card.expanded .log-header::after {
    content: 'skrýt log';
    font-size: 11px;
    text-transform: none;
    color: var(--orange);
    margin-left: auto;
}

.log-body {
    font-family: var(--f-mono);
    font-size: 13px;
    line-height: 1.75;
    color: #cbb3c6;
    padding: 14px 18px;
    height: 56px;
    overflow-y: auto;
    word-break: break-all;
    transition: height .25s ease;
    scrollbar-width: thin;
}
.log-card.expanded .log-body { height: 240px; }

.log-body .l-in    { color: #f0b6e3; }
.log-body .l-out   { color: var(--orange); }
.log-body .l-ok    { color: #6be3a4; }
.log-body .l-warn  { color: #ffcf6b; }
.log-body .l-err   { color: #ff8fa3; }
.log-body .t { color: #7a6478; margin-right: 8px; }
.log-body .u { color: #a8b4d4; }

/* ---- Results / advanced comparison ---- */
.results {
    margin-top: 22px;
    display: none;
}
.results.visible { display: block; }
.results-heading {
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 26px;
    color: var(--text-hi);
    margin: 0 0 14px;
    padding-top: 6px;
    scroll-margin-top: 20px;
}

.adv-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 4px;
    font-size: 14px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    overflow: hidden;
}
.adv-table th, .adv-table td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--card-border);
}
.adv-table th {
    color: var(--text-mid);
    font-family: var(--f-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .06em;
    background: var(--bg-soft);
}
.adv-table tr:last-child td { border-bottom: none; }

/* ---- Rating badges (výborný/dobrý/ucházející/špatný) ---- */
.rating {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    padding: 3px 9px;
    border-radius: 999px;
    white-space: nowrap;
}
.rating.r-great { background: rgba(31,168,100,.14); color: var(--good); }
.rating.r-good  { background: rgba(31,168,100,.09); color: #2c8f5e; }
.rating.r-ok    { background: rgba(201,132,0,.14);  color: var(--warn); }
.rating.r-bad   { background: rgba(217,44,80,.13);  color: var(--bad); }

/* ---- Quick-test result summary ---- */
.quick-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}
.qs-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 14px 16px;
}
.qs-label {
    font-family: var(--f-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--text-dim);
    margin-bottom: 4px;
}
.qs-value {
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 26px;
    color: var(--text-hi);
}
.qs-value small { font-size: 12px; color: var(--text-mid); font-family: var(--f-mono); font-weight: 500; }
.qs-sub {
    font-size: 12px;
    color: var(--text-mid);
    margin-top: 2px;
}
.qs-sub.qs-warn { color: var(--warn); font-weight: 600; }
.qs-rating { margin-top: 8px; }

/* ---- Kompletní test: zvýrazněné maximum + průměr/minimum nad tabulkou serverů ---- */
.adv-summary {
    margin-bottom: 18px;
}
.qs-card.qs-big {
    background: linear-gradient(180deg, #fff, var(--bg-soft));
    border-color: var(--purple);
}
.qs-card.qs-big .qs-label { color: var(--purple); }
.qs-value-lg {
    font-size: 40px;
}
.adv-avg-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 22px;
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 13px;
    color: var(--text-mid);
}
.adv-avg-row b { color: var(--text-hi); font-weight: 700; }
.adv-avg-row .aar-group { display: flex; gap: 6px; align-items: baseline; }
.adv-avg-row .aar-tag {
    font-family: var(--f-mono);
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-dim);
}

/* ---- Post-test tariff guess + feedback card ---- */
.tariff-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 18px 22px 20px;
    margin-bottom: 18px;
}
.tariff-guess {
    font-size: 15px;
    color: var(--text-body);
    padding-bottom: 14px;
    border-bottom: 1px solid var(--card-border);
}
.tariff-guess b { color: var(--purple); }

.tf-section {
    padding: 14px 0;
    border-bottom: 1px solid var(--card-border);
}
.tf-section:last-of-type { border-bottom: none; padding-bottom: 4px; }
.tf-section-title {
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 15px;
    color: var(--text-hi);
    margin-bottom: 10px;
}
.tf-select-row {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.tf-select-row select { min-width: 240px; }

.tf-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.tf-yes, .tf-no {
    padding: 9px 18px;
    font-size: 13.5px;
}
.tf-yes.active { background: rgba(31,168,100,.14); border-color: var(--good); color: var(--good); }
.tf-no.active { background: rgba(217,44,80,.13); border-color: var(--bad); color: var(--bad); }

.tf-verdict { margin-top: 14px; }
.tf-verdict-row {
    display: flex;
    align-items: center;
    gap: 8px 18px;
    flex-wrap: wrap;
    font-size: 14.5px;
}

/* Výrazné CTA, když rychlost neodpovídá očekávání (nebo zákazník řekne "Ne") */
.tf-cta {
    margin-top: 14px;
    padding: 16px 20px;
    border-radius: 14px;
    background: linear-gradient(135deg, #fff0e0, #ffe4ea);
    border: 1.5px solid var(--bad);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.tf-cta-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.tf-cta-text strong { color: var(--text-hi); font-size: 15px; }
.tf-cta-text span { color: var(--text-mid); font-size: 13px; }
.tf-cta-btn {
    flex-shrink: 0;
    display: inline-block;
    background: var(--purple);
    color: #fff;
    font-family: var(--f-display);
    font-weight: 700;
    font-size: 15px;
    padding: 12px 26px;
    border-radius: 12px;
    text-decoration: none;
    white-space: nowrap;
    box-shadow: 0 8px 20px rgba(143,29,119,.3);
    transition: transform .12s, box-shadow .12s;
}
.tf-cta-btn:hover { background: var(--purple-ink); box-shadow: 0 10px 24px rgba(143,29,119,.4); }
.tf-cta-btn:active { transform: translateY(1px); }

.tf-ok-note {
    margin-top: 10px;
    color: var(--good);
    font-weight: 600;
    font-size: 14px;
}

/* ---- Help modal ---- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(42,9,37,.45);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 50;
}
.modal-overlay[hidden] { display: none; }
.modal-box {
    background: #fff;
    border-radius: 20px;
    max-width: 560px;
    width: 100%;
    max-height: 84vh;
    overflow-y: auto;
    box-shadow: 0 30px 70px rgba(42,9,37,.35);
}
.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    background: #fff;
}
.modal-head h2 {
    font-family: var(--f-display);
    font-size: 22px;
    margin: 0;
    color: var(--text-hi);
}
.modal-close {
    background: none;
    border: none;
    font-size: 26px;
    line-height: 1;
    color: var(--text-mid);
    padding: 4px 8px;
}
.modal-body {
    padding: 6px 22px 22px;
    font-size: 14.5px;
    line-height: 1.6;
}
.modal-body h3 {
    font-family: var(--f-display);
    color: var(--purple);
    font-size: 18px;
    margin: 20px 0 6px;
}
.modal-body h3:first-child { margin-top: 8px; }
.modal-note { color: var(--text-mid); font-size: 13px; }
.rating-legend {
    list-style: none;
    padding: 0;
    margin: 8px 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.rating-legend li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13.5px;
}

.send-row {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 20px;
    flex-wrap: wrap;
}
.send-note {
    font-size: 12.5px;
    color: var(--text-dim);
    flex: 1 1 220px;
}
.send-status {
    font-family: var(--f-mono);
    font-size: 12.5px;
}
.send-status.ok { color: var(--good); }
.send-status.err { color: var(--bad); }

.auto-repeat-note {
    margin: 10px 0 0;
    font-size: 12px;
    color: var(--text-dim);
    font-family: var(--f-mono);
    flex: 1 1 260px;
}
.auto-repeat-note b { color: var(--text-mid); font-weight: 600; }

.auto-repeat-block {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}
.auto-repeat-block .metric-clock {
    margin-top: 10px;
    flex: 0 0 auto;
    width: 130px;
}

footer {
    text-align: center;
    color: var(--text-dim);
    font-size: 13px;
    margin-top: 36px;
    padding-bottom: 8px;
}
footer a { color: var(--text-mid); }

/* ---- Tower / city footer illustration - full bleed, on white ---- */
.tower-city {
    display: block;
    width: 100%;
    height: auto;
    max-height: 200px;
    object-fit: contain;
    object-position: center bottom;
    margin-top: 4px;
}

@media (max-width: 760px) {
    .gauge-row {
        grid-template-columns: 1fr;
    }
    .metrics {
        flex-direction: row;
        flex-wrap: wrap;
    }
    .metric { min-width: 130px; }
}

@media (max-width: 480px) {
    h1 { font-size: 32px; }
    .gauge-readout .value { font-size: 52px; }
    .gauge-label { font-size: 18px; }
    button { padding: 15px 26px; font-size: 17px; }
    .btn-test-main { font-size: 22px; padding: 20px 26px; }
    .logo { height: 46px; }
    .btn-help { width: 34px; height: 34px; font-size: 16px; }
    .modal-box { border-radius: 14px; max-height: 92vh; }
    .modal-head { padding: 14px 16px; }
    .modal-body { padding: 4px 16px 18px; }
}

@media (prefers-reduced-motion: reduce) {
    .gauge-needle, .metric, .cc-hand { transition: none !important; }
}