/* Tank Arena — UI styl (agent B). Bez externích fontů a knihoven. */

:root {
  --bg:        #0a0d12;
  --bg-2:      #0e131b;
  --panel:     #131a24;
  --panel-2:   #18212d;
  --line:      #24303f;
  --text:      #dbe4ef;
  --muted:     #7d8da3;
  --accent:    #45d67a;
  --accent-2:  #3fe0e0;
  --danger:    #ff4d4d;
  --warn:      #ffd23f;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

body {
  background:
    radial-gradient(1100px 700px at 50% -10%, #16202c 0%, rgba(22,32,44,0) 70%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.015) 0 1px, rgba(0,0,0,0) 1px 3px),
    var(--bg);
}

.hidden { display: none !important; }

.screen { min-height: 100%; }

/* ---------------- stav spojení ---------------- */
.conn-bar {
  position: fixed;
  top: 10px; right: 12px;
  z-index: 60;
  display: flex; align-items: center; gap: 8px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10,13,18,.82);
  backdrop-filter: blur(4px);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .03em;
  color: var(--muted);
  pointer-events: none;
}
.conn-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--muted);
  box-shadow: 0 0 8px currentColor;
}
.conn-bar.is-on  .conn-dot { background: var(--accent); color: var(--accent); }
.conn-bar.is-off .conn-dot { background: var(--danger); color: var(--danger); }
.conn-bar.is-wait .conn-dot { background: var(--warn); color: var(--warn); }
.conn-ping { color: #5f6f86; }

/* ---------------- LOBBY ---------------- */
.lobby { padding: 26px 18px 40px; display: flex; justify-content: center; }
.lobby-wrap { width: 100%; max-width: 940px; }

.lobby-head {
  display: flex; align-items: center; gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.back-link {
  color: var(--muted); text-decoration: none;
  border: 1px solid var(--line); border-radius: 8px;
  padding: 6px 11px; font-size: 13px;
  transition: .15s;
}
.back-link:hover { color: var(--text); border-color: var(--accent); }

.logo {
  margin: 0; flex: 1;
  font-family: var(--mono);
  font-size: clamp(22px, 5vw, 34px);
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text);
  text-shadow: 0 0 22px rgba(69,214,122,.25);
}
.logo span { color: var(--accent); }

.room-tag {
  font-family: var(--mono); font-size: 12px; color: var(--muted);
  border: 1px dashed var(--line); border-radius: 8px; padding: 5px 10px;
}
.room-tag b { color: var(--accent-2); font-weight: 600; }

.panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 760px) { .panels { grid-template-columns: 1fr; } }

.panel {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 14px 40px rgba(0,0,0,.35);
}
.panel-title {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--muted);
  display: flex; align-items: center; gap: 8px;
}
.panel-title.mt { margin-top: 20px; }
.count { color: var(--accent-2); font-weight: 600; letter-spacing: .06em; }

.field { display: block; margin-bottom: 16px; }
.field-label {
  display: block; margin-bottom: 6px;
  font-size: 12px; color: var(--muted); letter-spacing: .04em;
}

.text-input {
  width: 100%;
  padding: 11px 13px;
  background: #0b1017;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 15px;
  outline: none;
  transition: .15s;
}
.text-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(69,214,122,.14); }

/* barvy */
.color-picker { display: flex; flex-wrap: wrap; gap: 9px; }
.color-swatch {
  position: relative;
  width: 42px; height: 42px;
  border-radius: 11px;
  border: 2px solid rgba(255,255,255,.14);
  background: #222;
  cursor: pointer;
  transition: transform .12s, box-shadow .12s, border-color .12s;
  padding: 0;
}
.color-swatch:hover:not([disabled]) { transform: translateY(-2px); }
.color-swatch.sel {
  border-color: #fff;
  box-shadow: 0 0 0 3px rgba(255,255,255,.18), 0 0 16px currentColor;
}
.color-swatch[disabled] {
  cursor: not-allowed;
  opacity: .3;
  filter: grayscale(.6);
}
.color-swatch[disabled]::after {
  content: "×";
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 700; color: rgba(255,255,255,.85);
}

/* tlačítka */
.btn {
  font-family: var(--mono);
  font-size: 13px; font-weight: 700;
  letter-spacing: .09em; text-transform: uppercase;
  padding: 12px 18px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  transition: .15s;
}
.btn:hover:not([disabled]) { border-color: var(--accent); color: #fff; }
.btn[disabled] { opacity: .4; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(180deg, #2f8f56, #1f6d3f);
  border-color: #35a862; color: #eafff2;
}
.btn-primary:hover:not([disabled]) { background: linear-gradient(180deg, #37a463, #25804a); }

.btn-ghost { background: transparent; }
.btn-ghost:hover:not([disabled]) { border-color: var(--danger); color: #ffd9d9; }

.btn-start {
  width: 100%; margin-top: 14px;
  padding: 14px;
  font-size: 14px;
  background: linear-gradient(180deg, #1e5f7a, #14455a);
  border-color: #2b7d9e; color: #e6fbff;
}
.btn-start:hover:not([disabled]) { background: linear-gradient(180deg, #2678a0, #185670); }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

.lobby-info {
  margin: 14px 0 0;
  font-size: 12.5px; line-height: 1.5;
  color: var(--muted);
  min-height: 1.5em;
}
.lobby-info.warn { color: var(--warn); }
.lobby-info.err  { color: var(--danger); }

/* seznam hráčů */
.player-list { list-style: none; margin: 0; padding: 0; min-height: 60px; }
.player-list li {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 11px;
  margin-bottom: 7px;
  background: #0d131b;
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-radius: 9px;
  font-size: 14px;
}
.player-list li.me { background: #101a20; border-color: #2e4356; }
.player-list .p-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.player-list .p-you {
  font-family: var(--mono); font-size: 10px; letter-spacing: .1em;
  color: var(--accent); border: 1px solid rgba(69,214,122,.4);
  border-radius: 5px; padding: 1px 5px;
}
.player-list .p-score {
  font-family: var(--mono); font-weight: 700; font-size: 15px; color: var(--warn);
  min-width: 2ch; text-align: right;
}
.player-list .empty { justify-content: center; color: var(--muted); font-size: 13px; border-left-color: var(--line); }

/* volba bodů */
.score-limit { display: flex; gap: 8px; flex-wrap: wrap; }
.score-opt {
  flex: 1; min-width: 54px;
  font-family: var(--mono); font-size: 15px; font-weight: 700;
  padding: 10px 0;
  background: #0d131b; color: var(--muted);
  border: 1px solid var(--line); border-radius: 9px;
  cursor: pointer; transition: .15s;
}
.score-opt:hover:not([disabled]) { color: var(--text); border-color: var(--accent-2); }
.score-opt.on {
  background: linear-gradient(180deg, #2a3b4c, #1b2734);
  color: #fff; border-color: var(--accent-2);
  box-shadow: 0 0 14px rgba(63,224,224,.16);
}
.score-opt[disabled] { opacity: .45; cursor: not-allowed; }

/* nápověda */
.how-to {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
  background: rgba(19,26,36,.6);
}
.how-to h3 {
  margin: 0 0 10px;
  font-family: var(--mono); font-size: 12px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--muted);
}
.how-to ul { margin: 0; padding-left: 18px; columns: 2; column-gap: 26px; }
@media (max-width: 700px) { .how-to ul { columns: 1; } }
.how-to li { font-size: 13px; color: #aab8ca; margin-bottom: 6px; }
.how-to b { color: var(--accent-2); font-family: var(--mono); }

/* ---------------- HRA ---------------- */
.game {
  position: fixed; inset: 0;
  overflow: hidden;
  background: #06090d;
}
.canvas-wrap { position: absolute; inset: 0; }
#canvas { display: block; width: 100%; height: 100%; }

.hud {
  position: absolute; top: 0; left: 0; right: 0;
  z-index: 20;
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  background: linear-gradient(180deg, rgba(6,9,13,.85), rgba(6,9,13,0));
  pointer-events: none;
}
.hud .btn { pointer-events: auto; }

.hud-left { min-width: 0; }
.hud-meta { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 7px; }
.hud-chip {
  font-family: var(--mono); font-size: 11px; letter-spacing: .06em;
  color: var(--muted);
  background: rgba(19,26,36,.75);
  border: 1px solid var(--line); border-radius: 6px;
  padding: 3px 7px;
}
.hud-chip b { color: var(--text); }

.hud-scores { display: flex; gap: 7px; flex-wrap: wrap; }
.score-pill {
  display: flex; align-items: center; gap: 6px;
  background: rgba(13,19,27,.8);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px 9px 4px 7px;
  font-size: 12.5px;
}
.score-pill.dead { opacity: .42; }
.score-pill.me { border-color: rgba(255,255,255,.35); }
.score-pill .dot { width: 10px; height: 10px; border-radius: 3px; }
.score-pill .nm { max-width: 11ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.score-pill .sc { font-family: var(--mono); font-weight: 700; color: var(--warn); }

.hud-right { display: flex; flex-direction: column; align-items: flex-end; gap: 7px; margin-right: 128px; }
@media (max-width: 620px) { .hud-right { margin-right: 0; margin-top: 30px; } }
.hud-time {
  font-family: var(--mono); font-size: 26px; font-weight: 700;
  letter-spacing: .05em;
  color: var(--text);
  text-shadow: 0 2px 14px rgba(0,0,0,.8);
  line-height: 1;
}
.hud-time.low { color: var(--danger); }
.btn-mini {
  padding: 5px 9px; font-size: 10.5px; letter-spacing: .08em;
  background: rgba(19,26,36,.85);
}

.controls-help {
  position: absolute; bottom: 8px; left: 0; right: 0;
  z-index: 20;
  text-align: center;
  font-family: var(--mono); font-size: 11px; letter-spacing: .04em;
  color: #64748b;
  pointer-events: none;
}
.controls-help b { color: #93a4bb; }

.overlay {
  position: absolute; inset: 0;
  z-index: 30;
  display: flex; align-items: center; justify-content: center;
  background: rgba(4,7,10,.55);
  pointer-events: none;
}
.overlay-box { text-align: center; padding: 20px 30px; }
.overlay-title {
  font-family: var(--mono);
  font-size: clamp(34px, 9vw, 84px);
  font-weight: 800;
  letter-spacing: .08em;
  line-height: 1.05;
  color: #fff;
  text-shadow: 0 0 34px rgba(63,224,224,.35), 0 6px 24px rgba(0,0,0,.8);
}
.overlay-sub {
  margin-top: 12px;
  font-family: var(--mono);
  font-size: clamp(12px, 2.4vw, 16px);
  letter-spacing: .1em;
  color: #9fb0c6;
}

/* ---------------- toast ---------------- */
.toast {
  position: fixed;
  left: 50%; bottom: 26px;
  transform: translateX(-50%);
  z-index: 80;
  max-width: 90vw;
  padding: 11px 17px;
  background: #2a1417;
  border: 1px solid #74323a;
  border-radius: 10px;
  color: #ffd9dc;
  font-size: 13px;
  box-shadow: 0 12px 34px rgba(0,0,0,.5);
}

/* ==========================================================================
   Tank Arena — rozvržení dotykových tlačítek
   (obecné styly jsou v /shared/touch.css)
   ========================================================================== */
.tbtn.is-down {
  background: rgba(69,214,122,.34);
  border-color: rgba(69,214,122,.75);
}
body.touch-on .hud { padding: 6px 10px; font-size: 12px; }
.rotate-icon { color: #45d67a; }

/* --- D-pad pro jízdu --- */
.dpad { position: relative; width: 168px; height: 168px; }
.dpad .tbtn { position: absolute; width: 56px; height: 56px; }
.dpad-up    { left: 56px;  top: 0; }
.dpad-down  { left: 56px;  top: 112px; }
.dpad-left  { left: 0;     top: 56px; }
.dpad-right { left: 112px; top: 56px; }

/* --- hlaveň + střelba --- */
.turret-row { display: flex; gap: 10px; }
.tbtn-turret { width: 64px; height: 56px; font-size: 24px; }
.tbtn-fire {
  width: 138px; height: 68px;
  font: 700 17px/1 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  letter-spacing: .12em;
  color: #08090f;
  background: rgba(255,77,77,.9);
  border-color: rgba(255,255,255,.28);
}
.tbtn-fire.is-down {
  background: rgba(255,140,90,1);
  border-color: #fff;
  transform: scale(.96);
}

/* Malá / nízká obrazovka: zmenšit ovladače, ať nezakrývají arénu. */
@media (max-height: 430px), (max-width: 700px) {
  .dpad { width: 144px; height: 144px; }
  .dpad .tbtn { width: 48px; height: 48px; }
  .dpad-up, .dpad-down { left: 48px; }
  .dpad-up { top: 0; } .dpad-down { top: 96px; }
  .dpad-left { top: 48px; } .dpad-right { left: 96px; top: 48px; }
  .tbtn-turret { width: 56px; height: 50px; }
  .tbtn-fire { width: 116px; height: 58px; font-size: 15px; }
  .touch-label { display: none; }
}