/* Rozhraní ve stylu „liquid glass“ (Apple, 2025): průsvitné sklo s rozostřením, světelným okrajem
   a plovoucími kapslemi. Barvy a písmo podle systému Apple (SF Pro, systémová modrá a zelená). */

:root {
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter Tight", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  --text: #ffffff;
  --text-2: rgba(255, 255, 255, 0.74);
  --text-3: rgba(255, 255, 255, 0.62);   /* 0,5 mělo na světlém skle nad oblohou příliš nízký kontrast */
  --blue: #0a84ff;
  --cyan: #64d2ff;
  --green: #30d158;
  --tint: rgba(34, 38, 46, 0.34);
  --blur: blur(28px) saturate(190%);
  --r-sheet: 26px;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; background: #0b0d10; color: var(--text);
  font: 13px/1.45 var(--font); -webkit-font-smoothing: antialiased; }
#app { position: fixed; inset: 0; }
canvas { display: block; }
#labels { position: fixed; inset: 0; pointer-events: none; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
code { font: 12px var(--mono); color: var(--text); }
kbd { display: inline-block; min-width: 20px; padding: 1px 6px; border-radius: 7px; font: 11px/16px var(--font); text-align: center;
  background: rgba(255, 255, 255, 0.14); box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.5); color: var(--text); }

/* ---------- sklo ---------- */
.brand, #rail, .panel, #timeline, #info, #walkhelp, #toast, #welcome {
  position: fixed;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16) 0%, rgba(255, 255, 255, 0.05) 38%, rgba(255, 255, 255, 0.02) 100%),
    var(--tint);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  box-shadow:
    inset 0 1px 0.5px rgba(255, 255, 255, 0.55),
    inset 0 -0.5px 1px rgba(255, 255, 255, 0.16),
    inset 0 0 0 0.5px rgba(255, 255, 255, 0.2),
    0 12px 40px rgba(0, 0, 0, 0.22),
    0 2px 8px rgba(0, 0, 0, 0.12);
}
/* světelný okraj – jasnější vlevo nahoře a vpravo dole, jako lom světla na hraně skla */
.brand::before, #rail::before, .panel::before, #timeline::before, #info::before, #welcome::before {
  content: ''; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.1) 30%, rgba(255, 255, 255, 0) 58%, rgba(255, 255, 255, 0.32));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}
@media (prefers-reduced-transparency: reduce) {
  :root { --tint: rgba(30, 33, 40, 0.92); }
}

.ui { transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.2, 0.9, 0.25, 1); }
body.clean .ui { opacity: 0 !important; pointer-events: none !important; }

/* ---------- název ---------- */
.brand { left: 16px; top: 16px; padding: 12px 18px 13px; border-radius: 22px; pointer-events: none; }
.brand h1 { margin: 0; font: 600 19px/1.15 var(--font); letter-spacing: -0.015em; }

/* ---------- stavový řádek ---------- */

/* ---------- lišta nástrojů ---------- */
#rail { left: 16px; top: 50%; transform: translateY(-50%); display: flex; flex-direction: column; gap: 3px; padding: 6px; border-radius: 30px; }
#rail button { position: relative; width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; color: var(--text-2);
  transition: background 0.2s, color 0.2s, transform 0.15s; }
#rail button:hover { background: rgba(255, 255, 255, 0.12); color: var(--text); }
#rail button:active { transform: scale(0.92); }
#rail button.on { color: var(--text); background: rgba(255, 255, 255, 0.24);
  box-shadow: inset 0 1px 0.5px rgba(255, 255, 255, 0.6), inset 0 0 0 0.5px rgba(255, 255, 255, 0.25), 0 3px 10px rgba(0, 0, 0, 0.18); }
#rail .sep { height: 0.5px; margin: 4px 8px; background: rgba(255, 255, 255, 0.2); }
#rail button::after { content: attr(data-tip); position: absolute; left: 54px; top: 50%; transform: translate(-4px, -50%); white-space: nowrap;
  padding: 5px 10px; border-radius: 99px; font-size: 12px; color: var(--text); pointer-events: none; opacity: 0; transition: opacity 0.15s, transform 0.15s;
  background: rgba(30, 33, 40, 0.72); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.45), 0 4px 14px rgba(0, 0, 0, 0.25); }
#rail button:hover::after { opacity: 1; transform: translate(0, -50%); }
#rail button.on::after { opacity: 0; }
/* nová navigace: skupiny s popisky (bez barev – aktivní skupina jen světlejší sklo), rychlé přepínače kulaté */
#rail button:not(.quick) { width: 64px; height: 54px; border-radius: 18px; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 3px; font: 600 10.5px/1 var(--font); letter-spacing: 0; }
#rail button:not(.quick) svg { width: 21px; height: 21px; }
#rail button:not(.quick)::after { display: none; }
#rail button.quick { align-self: center; }
#rail button.quick.on { color: var(--text); background: rgba(255, 255, 255, 0.24); }
.navgroup .navsec { margin: 16px 0 8px; padding-top: 12px; border-top: 0.5px solid rgba(255, 255, 255, 0.16);
  font: 600 11px var(--font); letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-3); }
.navgroup header + .navsec { margin-top: 0; padding-top: 0; border-top: 0; }
.navgroup .btn .kb { margin-left: 6px; font: 500 10.5px var(--mono); opacity: 0.6; }
/* čistý pohled: nenápadné tlačítko pro návrat (vedle Esc a H), jen když je rozhraní skryté */
#uiRestore { position: fixed; left: 16px; top: 16px; z-index: 50; display: none; padding: 8px 14px; border-radius: 99px; border: 0;
  font: 500 12.5px var(--font); color: var(--text); cursor: pointer; background: rgba(30, 33, 40, 0.55);
  -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.4), 0 4px 14px rgba(0, 0, 0, 0.25); }
body.clean #uiRestore { display: block; }

/* ---------- panely ---------- */
.panel { left: 104px; top: 50%; width: 304px; max-height: calc(100vh - 210px); overflow-y: auto; padding: 14px 16px 16px;
  border-radius: var(--r-sheet); opacity: 0; visibility: hidden; transform: translate(-10px, -50%) scale(0.97); transform-origin: left center;
  transition: opacity 0.28s ease, transform 0.35s cubic-bezier(0.2, 0.9, 0.25, 1), visibility 0.28s; scrollbar-width: none; }
.panel::-webkit-scrollbar { display: none; }
.panel.open { opacity: 1; visibility: visible; transform: translate(0, -50%) scale(1); }
.panel header { display: flex; align-items: center; gap: 9px; margin: 0 -2px 12px 0; font: 600 15px/1.2 var(--font); letter-spacing: -0.01em; }
.panel header .idx { font: 500 10.5px var(--mono); color: var(--text-3); }
.x { margin-left: auto; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; color: var(--text-2);
  background: rgba(255, 255, 255, 0.1); box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.4); transition: background 0.2s; }
.x:hover { background: rgba(255, 255, 255, 0.2); color: var(--text); }
.x svg { width: 13px; height: 13px; stroke-width: 2.2; }

.label { margin: 14px 2px 7px; font-size: 12px; font-weight: 500; color: var(--text-3); }
.hint { margin: 10px 2px 2px; font-size: 12.5px; color: var(--text-2); }
.field { display: flex; justify-content: space-between; align-items: baseline; margin: 14px 2px 4px; color: var(--text-2); }
.field b { font: 500 12px var(--mono); color: var(--text); font-variant-numeric: tabular-nums; }
.readout { display: flex; align-items: baseline; gap: 5px; margin: 2px 2px 4px; }
.readout b { font: 600 38px/1 var(--font); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.readout span { color: var(--text-3); font-size: 13px; }
.readout.small b { font-size: 30px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 12px 0 4px; }
.grid2.tight { margin-top: 0; }

/* segmentový ovladač */
.seg { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; padding: 3px; border-radius: 99px;
  background: rgba(0, 0, 0, 0.2); box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.2), inset 0 -0.5px 0 rgba(255, 255, 255, 0.12); }
.seg button { display: flex; align-items: center; justify-content: center; gap: 6px; padding: 7px 8px; border-radius: 99px; color: var(--text-2);
  font-weight: 500; transition: background 0.25s, color 0.25s, box-shadow 0.25s; }
.seg button svg { width: 16px; height: 16px; }
.seg button.on { color: var(--text); background: rgba(255, 255, 255, 0.26);
  box-shadow: inset 0 1px 0.5px rgba(255, 255, 255, 0.6), inset 0 0 0 0.5px rgba(255, 255, 255, 0.25), 0 2px 8px rgba(0, 0, 0, 0.2); }
.seg4 button { padding: 7px 4px; font-size: 12px; }

/* tlačítka */
.btn { padding: 9px 14px; border-radius: 99px; font-weight: 500; text-align: center; background: rgba(255, 255, 255, 0.13);
  box-shadow: inset 0 1px 0.5px rgba(255, 255, 255, 0.45), inset 0 0 0 0.5px rgba(255, 255, 255, 0.16); transition: background 0.2s, transform 0.15s; }
.btn:hover { background: rgba(255, 255, 255, 0.22); }
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--blue); box-shadow: inset 0 1px 0.5px rgba(255, 255, 255, 0.45), 0 6px 18px rgba(10, 132, 255, 0.38); }
.btn.primary:hover { background: #2a95ff; }

/* přepínač iOS */
.switch { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 2px; cursor: pointer;
  border-bottom: 0.5px solid rgba(255, 255, 255, 0.1); }
.switch:last-child { border-bottom: 0; }
.switch input { position: absolute; opacity: 0; pointer-events: none; }
.switch i { flex: none; position: relative; width: 44px; height: 26px; border-radius: 99px; background: rgba(120, 120, 128, 0.4);
  box-shadow: inset 0 0.5px 1px rgba(0, 0, 0, 0.25); transition: background 0.25s; }
.switch i::after { content: ''; position: absolute; left: 2px; top: 2px; width: 22px; height: 22px; border-radius: 99px; background: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3), 0 0 0 0.5px rgba(0, 0, 0, 0.05); transition: transform 0.3s cubic-bezier(0.3, 1.3, 0.5, 1), width 0.2s; }
.switch:active i::after { width: 28px; }
.switch input:checked + i { background: var(--green); }
.switch input:checked + i::after { transform: translateX(18px); }
.switch:active input:checked + i::after { transform: translateX(12px); }

/* posuvník */
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 24px; margin: 2px 0; background: transparent; --p: 50%; cursor: pointer; }
input[type=range]:disabled { opacity: 0.35; cursor: default; }
input[type=range]::-webkit-slider-runnable-track { height: 6px; border-radius: 99px;
  background: linear-gradient(90deg, var(--blue) var(--p), rgba(255, 255, 255, 0.2) var(--p)); box-shadow: inset 0 0.5px 1px rgba(0, 0, 0, 0.25); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 30px; height: 20px; margin-top: -7px; border-radius: 99px; background: #fff;
  box-shadow: 0 2px 7px rgba(0, 0, 0, 0.3), 0 0 0 0.5px rgba(0, 0, 0, 0.06); transition: transform 0.15s; }
input[type=range]:active::-webkit-slider-thumb { transform: scale(1.12); }
input[type=range]::-moz-range-track { height: 6px; border-radius: 99px; background: rgba(255, 255, 255, 0.2); }
input[type=range]::-moz-range-progress { height: 6px; border-radius: 99px; background: var(--blue); }
input[type=range]::-moz-range-thumb { width: 30px; height: 20px; border: 0; border-radius: 99px; background: #fff; box-shadow: 0 2px 7px rgba(0, 0, 0, 0.3); }

/* seznamy (pohledy, vrstvy) */
.list { display: flex; flex-direction: column; }
.row-btn { display: flex; align-items: center; gap: 10px; width: 100%; padding: 9px 10px; border-radius: 13px; text-align: left; color: var(--text);
  transition: background 0.2s; }
.row-btn:hover { background: rgba(255, 255, 255, 0.11); }
.row-btn .idx { font: 500 10.5px var(--mono); color: var(--text-3); width: 18px; }
.row-btn svg { margin-left: auto; width: 16px; height: 16px; opacity: 0; transform: translateX(-4px); transition: opacity 0.2s, transform 0.2s; color: var(--text-2); }
.row-btn:hover svg { opacity: 1; transform: none; }
.row-btn .bt { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.row-btn .bt small { font-size: 11.5px; color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-btn.on { background: rgba(255, 255, 255, 0.2); box-shadow: inset 0 1px 0.5px rgba(255, 255, 255, 0.5); }
.row-btn .dot { width: 8px; height: 8px; border-radius: 50%; flex: none; background: var(--c, #fff); box-shadow: 0 0 0 3px color-mix(in srgb, var(--c, #fff) 25%, transparent); }
#layers .switch { padding: 8px 2px; }

/* štítky kategorií */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px 5px 9px; border-radius: 99px; font-size: 12px; font-weight: 500;
  background: rgba(255, 255, 255, 0.13); box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.45); transition: opacity 0.2s, background 0.2s; }
.chip i { width: 8px; height: 8px; border-radius: 50%; }
.chip:not(.on) { opacity: 0.42; background: rgba(255, 255, 255, 0.05); }

.keys { display: grid; grid-template-columns: auto 1fr; gap: 7px 12px; margin: 0 2px; align-items: center; }
.keys dt { white-space: nowrap; }
.keys dd { margin: 0; color: var(--text-2); }

/* ---------- časová osa ---------- */
#timeline { left: 50%; bottom: 16px; transform: translateX(-50%); width: min(940px, calc(100vw - 132px)); padding: 10px 20px 11px 10px;
  border-radius: 32px; display: grid; grid-template-columns: 46px 74px 1fr; grid-template-rows: auto auto; column-gap: 12px; align-items: center; }
.play { grid-row: 1 / 3; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; color: #101114; background: #fff;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3), inset 0 -1px 0 rgba(0, 0, 0, 0.08); transition: transform 0.15s; }
.play:hover { transform: scale(1.05); }
.play:active { transform: scale(0.94); }
.play svg { width: 20px; height: 20px; stroke-width: 0; }
.play.on svg { stroke-width: 3; }
.tl-year { grid-row: 1 / 3; display: flex; flex-direction: column; }
.tl-year span { font-size: 10.5px; color: var(--text-3); }
.tl-year b { font: 600 25px/1.05 var(--font); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.tl-track { position: relative; padding-top: 6px; }
#ticks { position: absolute; left: 15px; right: 15px; top: 0; height: 10px; }
.tick { position: absolute; top: 0; width: 3px; height: 9px; margin-left: -1.5px; border-radius: 2px; background: rgba(255, 255, 255, 0.28);
  cursor: pointer; transition: background 0.2s, height 0.2s; }
.tick.past { background: rgba(255, 255, 255, 0.85); }
.tick.cur { background: var(--cyan); height: 11px; box-shadow: 0 0 8px rgba(100, 210, 255, 0.8); }
.tick:hover { height: 12px; }
.tick::after { content: attr(data-label); position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); white-space: nowrap; padding: 4px 9px;
  border-radius: 99px; font: 500 11.5px var(--font); color: var(--text); opacity: 0; pointer-events: none; transition: opacity 0.15s;
  background: rgba(30, 33, 40, 0.8); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.45), 0 4px 14px rgba(0, 0, 0, 0.3); }
.tick:hover::after { opacity: 1; }
#scale { position: relative; height: 13px; margin: 0 15px; }
#scale span { position: absolute; transform: translateX(-50%); font: 10px var(--mono); color: var(--text-3); }
.tl-event { grid-column: 3; margin-top: 3px; font-size: 12.5px; color: var(--text-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tl-event b { font: 600 12px var(--mono); color: var(--cyan); margin-right: 8px; }

/* ---------- karta s popisem ---------- */
#info { right: 16px; top: 82px; width: min(380px, calc(100vw - 32px)); max-height: calc(100vh - 210px); overflow-y: auto; padding: 18px 20px 16px;
  border-radius: var(--r-sheet); opacity: 0; visibility: hidden; transform: translateX(12px) scale(0.98); scrollbar-width: none;
  transition: opacity 0.28s ease, transform 0.35s cubic-bezier(0.2, 0.9, 0.25, 1), visibility 0.28s; }
#info::-webkit-scrollbar { display: none; }
#info.show { opacity: 1; visibility: visible; transform: none; }
#info .x { position: absolute; right: 12px; top: 12px; }
#info .kick { font: 500 10.5px var(--mono); color: var(--text-3); letter-spacing: 0.04em; text-transform: uppercase; }
#info h3 { margin: 5px 34px 10px 0; font: 600 21px/1.2 var(--font); letter-spacing: -0.02em; }
#info .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
#info .tag { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 99px; font-size: 11.5px; font-weight: 500;
  background: rgba(255, 255, 255, 0.13); box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.4); }
#info .tag i { width: 7px; height: 7px; border-radius: 50%; }
#info p { margin: 8px 0; font-size: 13.5px; line-height: 1.5; color: rgba(255, 255, 255, 0.9); }
#info .fun { padding: 10px 13px; border-radius: 15px; background: rgba(255, 255, 255, 0.09); box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.3); color: var(--text-2); }
#info .src { margin-top: 12px; padding-top: 10px; border-top: 0.5px solid rgba(255, 255, 255, 0.14); font-size: 12px; color: var(--text-3); }
#info .src a { display: block; color: var(--cyan); text-decoration: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.panel .hint a { color: var(--cyan); text-decoration: none; }
.panel .hint a:hover { text-decoration: underline; }
#info .src a:hover { text-decoration: underline; }

/* ---------- chůze, oznámení, načítání ---------- */
#crosshair { position: fixed; left: 50%; top: 50%; width: 8px; height: 8px; margin: -4px 0 0 -4px; border-radius: 50%; display: none; pointer-events: none;
  background: rgba(255, 255, 255, 0.9); box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.18), 0 0 6px rgba(0, 0, 0, 0.4); }
#walkhelp { left: 50%; bottom: 112px; transform: translate(-50%, 8px); padding: 8px 16px; border-radius: 99px; color: var(--text-2);
  font-size: 12px; opacity: 0; pointer-events: none; white-space: nowrap; }
#walkhelp.show { opacity: 1; transform: translate(-50%, 0); }
#walkhelp i { display: inline-block; width: 3px; height: 3px; margin: 0 6px 2px; border-radius: 50%; background: var(--text-3); }
#toast { left: 50%; top: 18px; transform: translate(-50%, -10px); padding: 8px 16px; border-radius: 99px; font-weight: 500; opacity: 0; pointer-events: none;
  transition: opacity 0.25s, transform 0.3s cubic-bezier(0.2, 0.9, 0.25, 1); }
#toast.show { opacity: 1; transform: translate(-50%, 0); }
#loading { position: fixed; inset: 0; z-index: 10; display: grid; place-items: center; transition: opacity 0.6s;
  background: radial-gradient(120% 90% at 50% 30%, #1d2430, #0b0d10 70%); }
#loading.done { opacity: 0; pointer-events: none; }
.ld-title { font: 500 11px var(--mono); letter-spacing: 0.18em; color: var(--text-2); text-align: center; }
.ld-bar { width: 180px; height: 4px; margin-top: 12px; border-radius: 99px; overflow: hidden; background: rgba(255, 255, 255, 0.12); }
.ld-bar i { display: block; width: 40%; height: 100%; border-radius: 99px; background: var(--blue); animation: ld 1.1s ease-in-out infinite; }
.ld-bar i.det { animation: none; transition: width 0.3s ease; }
.ld-step { margin-top: 10px; font: 500 11.5px var(--font); color: var(--text-3); text-align: center; min-height: 15px; }
@keyframes ld { from { transform: translateX(-100%); } to { transform: translateX(260%); } }

/* ---------- body poznámek ---------- */
.hs { pointer-events: auto; position: relative; width: 14px; height: 14px; border-radius: 50%; cursor: pointer; background: var(--c);
  box-shadow: 0 0 0 2px #fff, 0 2px 8px rgba(0, 0, 0, 0.45); transition: transform 0.2s, opacity 0.3s; }
.hs::before { content: ''; position: absolute; inset: -6px; border-radius: 50%; border: 1.5px solid var(--c); opacity: 0; animation: pulse 2.6s ease-out infinite; }
.hs:hover { transform: scale(1.3); }
.hs span { position: absolute; left: 22px; top: 50%; transform: translate(-4px, -50%); white-space: nowrap; padding: 5px 11px; border-radius: 99px;
  font: 500 12px var(--font); color: #fff; opacity: 0; pointer-events: none; transition: opacity 0.15s, transform 0.15s;
  background: rgba(30, 33, 40, 0.62); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.45), 0 4px 14px rgba(0, 0, 0, 0.25); }
.hs:hover span { opacity: 1; transform: translate(0, -50%); }
@keyframes pulse { 0% { transform: scale(0.6); opacity: 0.8; } 80%, 100% { transform: scale(1.5); opacity: 0; } }

/* ---------- mobil ---------- */
@media (max-width: 760px) {
  .brand { padding: 9px 14px; border-radius: 18px; }
  .brand h1 { font-size: 16px; margin: 0; }
  #rail { left: 8px; padding: 4px; gap: 1px; }
  #rail button { width: 38px; height: 38px; }
  #rail button:not(.quick) { width: 46px; height: 40px; border-radius: 14px; }
  #rail button:not(.quick) span { display: none; }
  #rail button::after { display: none; }
  body:has(.panel.open) #minimap { display: none; }   /* na telefonu by minimapa překryla otevřenou skupinu */
  .panel { left: 74px; right: 8px; width: auto; top: auto; bottom: 108px; max-height: 52vh; transform: translateY(12px) scale(0.98); transform-origin: bottom center; }
  .panel.open { transform: none; }
  #timeline { left: 8px; right: 8px; width: auto; bottom: 8px; transform: none; grid-template-columns: 42px 58px 1fr; padding: 8px 14px 8px 8px; column-gap: 8px; }
  .play { width: 42px; height: 42px; }
  .tl-year b { font-size: 20px; }
  #info { left: 62px; right: 8px; width: auto; top: 76px; }
  #walkhelp { display: none; }
  #scale .minor { display: none; }
}

/* popisky ulic v mapě (orientační zástavba) */
.street-label { pointer-events: none; white-space: nowrap; padding: 3px 9px; border-radius: 99px; font: 600 10.5px var(--font);
  letter-spacing: 0.02em; color: rgba(255, 255, 255, 0.95); background: rgba(30, 33, 40, 0.42);
  -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); box-shadow: inset 0 0.5px 0 rgba(255, 255, 255, 0.35); }
body.clean .street-label { display: none; }
/* přepínač budov pro řez – víc položek ve třech sloupcích */
.segwrap { grid-auto-flow: row; grid-template-columns: repeat(3, 1fr); border-radius: 18px; gap: 2px; }
.segwrap button { padding: 6px 4px; font-size: 12px; }

/* uvítací karta při první návštěvě */
#welcome { left: 50%; bottom: 112px; width: min(420px, calc(100vw - 32px)); padding: 18px 20px 16px; border-radius: var(--r-sheet);
  transform: translateX(-50%); z-index: 6; }
#welcome[hidden] { display: none; }
#welcome h3 { margin: 0 0 6px; font: 600 19px/1.2 var(--font); letter-spacing: -0.015em; }
#welcome p { margin: 0 0 8px; font-size: 13.5px; line-height: 1.45; color: rgba(255, 255, 255, 0.88); }
#welcome ul { margin: 0 0 12px; padding-left: 18px; font-size: 13px; line-height: 1.5; color: var(--text-2); }
#welcome .btn { width: 100%; }
body.touch .mouse-only, body:not(.touch) .touch-only, body.touch #welcome .kb { display: none; }
@media (max-width: 760px) { #welcome { bottom: 96px; } }

/* bezpečné zóny telefonu (výřez, domovský pruh) – v aplikaci claude.ai i v prohlížeči s viewport-fit=cover */
.brand { top: calc(16px + env(safe-area-inset-top, 0px)); }
#timeline { bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }
@media (max-width: 760px) {
  .brand { top: calc(8px + env(safe-area-inset-top, 0px)); }
  #timeline { bottom: calc(8px + env(safe-area-inset-bottom, 0px)); }
}

/* ---------- minimapa, měření, hledání ---------- */
#minimap { position: fixed; z-index: 20; right: 16px; bottom: calc(108px + env(safe-area-inset-bottom, 0px)); width: 220px; height: 220px; padding: 0; overflow: hidden;
  border-radius: 20px; background: var(--glass, rgba(255,255,255,0.55)); backdrop-filter: blur(18px) saturate(1.6); -webkit-backdrop-filter: blur(18px) saturate(1.6);
  box-shadow: 0 10px 30px rgba(0,0,0,0.18), inset 0 0 0 0.5px rgba(255,255,255,0.6); }
#minimap canvas { width: 100%; height: 100%; display: block; cursor: crosshair; }
#minimap.off { display: none; }
body.clean #minimap { display: none; }
#measureHint { position: fixed; z-index: 30; left: 50%; top: calc(16px + env(safe-area-inset-top, 0px)); transform: translateX(-50%); padding: 8px 16px; border-radius: 99px;
  font: 500 12.5px var(--font); background: rgba(10,132,255,0.92); color: #fff; box-shadow: 0 6px 20px rgba(10,132,255,0.35); }
.measure-label { pointer-events: none; padding: 5px 10px; border-radius: 12px; font: 500 11px var(--font); color: #fff; background: rgba(10,132,255,0.92);
  text-align: center; white-space: nowrap; box-shadow: 0 4px 14px rgba(0,0,0,0.25); }
.measure-label b { display: block; font-size: 14px; font-weight: 700; }
.measure-label span { opacity: 0.9; }
.measure-label.alt { background: rgba(28,28,30,0.78); font-size: 10.5px; }
#bldSearch { width: 100%; box-sizing: border-box; margin: 2px 0 8px; padding: 9px 14px; border-radius: 12px; border: 0;
  font: 500 13px var(--font); background: rgba(118,118,128,0.14); color: inherit; outline: none; }
#bldSearch:focus { box-shadow: 0 0 0 3px rgba(10,132,255,0.35); }
/* fokus z klávesnice: systémový modrý prstenec (myš ho nezobrazí) */
.ui button:focus-visible, .ui input:focus-visible, .ui a:focus-visible, .ui label:has(input:focus-visible) > i {
  outline: 2px solid var(--blue); outline-offset: 2px; box-shadow: 0 0 0 5px rgba(10,132,255,0.25); }
.ui input[type=range]:focus-visible { outline-offset: 4px; border-radius: 999px; }
#bldResults:empty { display: none; }
@media (max-width: 760px) { #minimap { width: 150px; height: 150px; bottom: calc(150px + env(safe-area-inset-bottom, 0px)); right: 8px; } }

/* ---------- tehdy × dnes (opona) ---------- */
#compare { position: fixed; inset: 0; z-index: 15; pointer-events: none; }
#cmpHandle { position: absolute; top: 0; bottom: 0; width: 44px; margin-left: -22px; cursor: ew-resize; pointer-events: auto; touch-action: none; }
#cmpHandle::before { content: ''; position: absolute; left: 21px; top: 0; bottom: 0; width: 2px; background: rgba(255,255,255,0.95); box-shadow: 0 0 10px rgba(0,0,0,0.35); }
#cmpHandle i { position: absolute; left: 6px; top: 50%; width: 32px; height: 32px; margin-top: -16px; border-radius: 50%; background: rgba(255,255,255,0.95);
  box-shadow: 0 4px 14px rgba(0,0,0,0.3); }
#cmpHandle i::before { content: '‹ ›'; position: absolute; inset: 0; display: grid; place-items: center; font: 700 14px var(--font); color: #0a84ff; }
.cmp-tag { position: absolute; top: calc(70px + env(safe-area-inset-top, 0px)); padding: 6px 14px; border-radius: 99px; font: 700 15px var(--font);
  background: rgba(28,28,30,0.72); color: #fff; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.cmp-tag.right { transform: translateX(-100%); }
#cmpBar { position: absolute; left: 50%; bottom: calc(108px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); pointer-events: auto;
  display: flex; align-items: center; gap: 10px; padding: 8px 14px; border-radius: 99px; font: 500 12.5px var(--font);
  background: rgba(255,255,255,0.72); backdrop-filter: blur(18px) saturate(1.6); -webkit-backdrop-filter: blur(18px) saturate(1.6); box-shadow: 0 8px 26px rgba(0,0,0,0.18); }
#cmpBar input { width: min(240px, 40vw); }
#cmpBar b { min-width: 38px; font-variant-numeric: tabular-nums; }
#cmpBar button { border: 0; border-radius: 99px; padding: 5px 12px; font: 600 12px var(--font); background: #0a84ff; color: #fff; cursor: pointer; }

/* nápověda k hernímu ovladači (panel Režim prohlížení) */
.padhelp { margin: 10px 2px 2px; font-size: 12.5px; color: var(--text-2); }
.padhelp summary { cursor: pointer; color: var(--text); padding: 4px 0; list-style: none; }
.padhelp summary::before { content: '▸ '; color: var(--text-3); }
.padhelp[open] summary::before { content: '▾ '; }
.padhelp table { width: 100%; border-collapse: collapse; margin-top: 4px; }
.padhelp th { text-align: left; font-weight: 600; color: var(--text); white-space: nowrap; padding: 2px 10px 2px 0; vertical-align: top; }
.padhelp td { padding: 2px 0; }

/* ---------- spodek lišty: rychlé přepínače 2 × 2 a ovládání pohledu (posun, přiblížení, otáčení, náklon), bez barev ---------- */
#rail .quick2 { display: grid; grid-template-columns: repeat(2, 31px); gap: 2px; align-self: center; }
#rail .quick2 button { width: 31px; height: 31px; }
#rail .quick2 button svg { width: 17px; height: 17px; }
#rail .quick2 button:nth-child(odd)::after { left: 78px; }
#rail .quick2 button:nth-child(even)::after { left: 45px; }
#navpad { display: flex; flex-direction: column; gap: 2px; align-self: center; }
#navpad .zoom { display: grid; grid-template-columns: repeat(2, 31px); gap: 2px; }
#navpad .pad { display: grid; grid-template-columns: repeat(3, 20px); grid-auto-rows: 22px; gap: 2px; }
#rail #navpad button { width: auto; height: 31px; border-radius: 11px; display: grid; place-items: center; padding: 0; gap: 0;
  touch-action: none; user-select: none; -webkit-user-select: none; }
#rail #navpad .pad button { height: 22px; border-radius: 7px; }
#rail #navpad button::after { display: none; }
#navpad button svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
#navpad .pad button svg { width: 15px; height: 15px; }
#rail #navpad button.held { background: rgba(255, 255, 255, 0.24); color: var(--text); transform: scale(0.93); }
#navpad.iso .tilt { visibility: hidden; }          /* pixel art: sklon zamčený na izometrii */
#navpad.walk { display: none; }                    /* procházení: pohyb klávesami / páčkou */
@media (max-width: 760px) {
  /* telefon: úzká lišta – rychlé přepínače pod sebou, z ovládání pohledu jen přiblížení a otáčení (posun gesty) */
  #rail .quick2 { grid-template-columns: 38px; }
  #rail .quick2 button { width: 38px; height: 38px; }
  #navpad .zoom { grid-template-columns: 38px; }
  #rail #navpad button { width: 38px; height: 34px; }
  #navpad .pad { display: flex; flex-direction: column; gap: 2px; }
  #navpad .pad button:not([data-nav^="rot"]) { display: none !important; }
  #rail #navpad .pad button { height: 34px; border-radius: 11px; }
}