/* ============================================================
   ROBO SPORTS — shared steampunk chrome
   Brass, rivets, smoked glass and oil-stained leather.
   ============================================================ */

:root {
  --brass:        #c9a227;
  --brass-light:  #f0d98a;
  --brass-dark:   #6d4f11;
  --copper:       #b4693a;
  --copper-light: #e69b62;
  --verdigris:    #4fb3a5;
  --iron:         #2b2724;
  --iron-light:   #46403a;
  --leather:      #1a120c;
  --smoke:        #0d0b09;
  --glow:         #ffc85e;
  --ink:          #efe0c0;
  --ink-dim:      #a8977a;
  --serif:        "Cinzel", "Bookman Old Style", Georgia, "Times New Roman", serif;
  --mono:         "Courier New", Courier, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--smoke);
  color: var(--ink);
  font-family: var(--serif);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

body.page-scroll { overflow: auto; }

/* --- oil-stained backdrop behind everything ---------------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 18%, #3a2d20 0%, #170f0a 55%, #080605 100%);
  z-index: -2;
}
/* soot / grain */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .16;
  z-index: 100;
  background-image:
    repeating-linear-gradient(0deg, rgba(0,0,0,.35) 0 1px, transparent 1px 3px);
  mix-blend-mode: multiply;
}

/* ============================================================
   Layout
   ============================================================ */

.machine {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px 12px;
}

/* --- title plate ------------------------------------------- */
.nameplate {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 7px 26px;
  border-radius: 6px;
  background:
    linear-gradient(180deg, #6a4f18 0%, #a9861f 18%, #d9bb5a 45%, #8f6d18 70%, #4b350c 100%);
  border: 2px solid #2b1d08;
  box-shadow:
    inset 0 1px 0 rgba(255,240,190,.55),
    inset 0 -2px 6px rgba(0,0,0,.55),
    0 6px 18px rgba(0,0,0,.7);
}
.nameplate h1 {
  margin: 0;
  font-size: clamp(14px, 2.1vw, 22px);
  letter-spacing: .34em;
  text-transform: uppercase;
  color: #2a1c06;
  text-shadow: 0 1px 0 rgba(255,238,190,.5);
  white-space: nowrap;
}
.nameplate .sub {
  font-size: 10px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: #3d2a09;
  opacity: .8;
  white-space: nowrap;
}

/* --- the screen bezel -------------------------------------- */
.bezel {
  position: relative;
  padding: 14px;
  border-radius: 10px;
  background:
    linear-gradient(150deg, #6b5117 0%, #3d2c0d 25%, #7d5f1b 50%, #33250b 78%, #5d4614 100%);
  border: 2px solid #1c1305;
  box-shadow:
    inset 0 2px 0 rgba(255,235,180,.30),
    inset 0 -3px 10px rgba(0,0,0,.7),
    0 14px 40px rgba(0,0,0,.85);
  line-height: 0;
}
.bezel::before {  /* rivet row */
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 6px;
  pointer-events: none;
  background-image:
    radial-gradient(circle 3.5px at 8px 8px, #f2dc9a 0 40%, #6a4c10 55%, transparent 70%),
    radial-gradient(circle 3.5px at calc(100% - 8px) 8px, #f2dc9a 0 40%, #6a4c10 55%, transparent 70%),
    radial-gradient(circle 3.5px at 8px calc(100% - 8px), #f2dc9a 0 40%, #6a4c10 55%, transparent 70%),
    radial-gradient(circle 3.5px at calc(100% - 8px) calc(100% - 8px), #f2dc9a 0 40%, #6a4c10 55%, transparent 70%);
  background-repeat: no-repeat;
}

canvas.screen {
  display: block;
  border-radius: 4px;
  border: 2px solid #120c05;
  background: #0a0908;
  box-shadow: inset 0 0 60px rgba(0,0,0,.9);
  image-rendering: auto;
  touch-action: none;
}

/* --- control strip ----------------------------------------- */
.controls {
  display: flex;
  gap: 10px;
  align-items: stretch;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 100%;
}
.ctl-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 14px;
  border-radius: 5px;
  background: linear-gradient(180deg, #241a10, #14100b);
  border: 1px solid #56411a;
  box-shadow: inset 0 1px 0 rgba(255,220,150,.12), 0 3px 8px rgba(0,0,0,.6);
}
.ctl-card .who {
  font-size: 10px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.ctl-card .who.p1 { color: var(--copper-light); }
.ctl-card .who.p2 { color: var(--verdigris); }

kbd {
  display: inline-block;
  min-width: 22px;
  padding: 2px 6px;
  margin: 0 1px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: bold;
  text-align: center;
  color: #241a09;
  border-radius: 4px;
  background: linear-gradient(180deg, #e8d191 0%, #c2a04a 55%, #8f7020 100%);
  border: 1px solid #2b1d07;
  box-shadow: inset 0 1px 0 rgba(255,250,220,.8), 0 2px 0 #3a2a0c, 0 3px 4px rgba(0,0,0,.5);
}
.ctl-card .lbl { font-size: 11px; letter-spacing: .12em; color: var(--ink-dim); text-transform: uppercase; }

/* always-available route back to the game-selection hub, without covering
   the court. It is an <a>, so it also middle-clicks into a new tab. */
a.btn {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.controls .home {
  padding: 6px 18px;
  font-size: 10.5px;
  letter-spacing: .18em;
}

/* ============================================================
   Overlays (menu / pause / game over)
   ============================================================ */
.overlay {
  position: absolute;
  inset: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  background: radial-gradient(ellipse at 50% 45%, rgba(20,14,8,.80) 0%, rgba(6,4,3,.94) 75%);
  backdrop-filter: blur(2px);
  z-index: 20;
  line-height: normal;
}
.overlay[hidden] { display: none; }

.panel {
  position: relative;
  min-width: min(520px, 78vw);
  max-width: 78vw;
  padding: 26px 34px 24px;
  text-align: center;
  border-radius: 8px;
  background:
    linear-gradient(180deg, #241a11 0%, #17110b 60%, #100b07 100%);
  border: 2px solid var(--brass-dark);
  box-shadow:
    inset 0 1px 0 rgba(255,225,160,.25),
    inset 0 0 40px rgba(0,0,0,.8),
    0 18px 50px rgba(0,0,0,.85);
}
.panel::before, .panel::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brass), transparent);
  opacity: .55;
}
.panel::before { top: 10px; }
.panel::after  { bottom: 10px; }

.panel h2 {
  margin: 6px 0 4px;
  font-size: clamp(20px, 3.4vw, 34px);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--brass-light);
  text-shadow: 0 0 18px rgba(255,190,80,.35), 0 2px 0 #000;
}
.panel p {
  margin: 8px auto 14px;
  max-width: 46ch;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-dim);
  letter-spacing: .04em;
}
.panel .tag {
  font-size: 10px;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--copper);
}

.btn-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 6px; }

.btn {
  position: relative;
  cursor: pointer;
  padding: 10px 22px;
  font-family: var(--serif);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #2a1c06;
  border-radius: 5px;
  border: 2px solid #241806;
  background: linear-gradient(180deg, #f2dda0 0%, #cfa93f 40%, #a8821e 62%, #6d5210 100%);
  box-shadow: inset 0 1px 0 rgba(255,252,230,.85), 0 4px 0 #33240a, 0 7px 12px rgba(0,0,0,.6);
  transition: transform .06s ease, box-shadow .06s ease, filter .12s ease;
}
.btn:hover { filter: brightness(1.1); }
.btn:active { transform: translateY(3px); box-shadow: inset 0 1px 0 rgba(255,252,230,.7), 0 1px 0 #33240a, 0 3px 6px rgba(0,0,0,.6); }
.btn.ghost {
  color: var(--brass-light);
  background: linear-gradient(180deg, #2a2015, #16100a);
  border-color: #5b4416;
  box-shadow: inset 0 1px 0 rgba(255,220,150,.16), 0 4px 0 #100b06, 0 7px 12px rgba(0,0,0,.6);
}
/* --- toggle groups ---
   The picked option is live brass; every unpicked one is cold, dead metal.
   These win over .btn / .btn.ghost so a group reads the same either way. */
.btn[aria-pressed="true"] {
  background: linear-gradient(180deg, #ffe9b0 0%, #e0b74a 45%, #b98d1f 100%);
  color: #1d1304;
  box-shadow:
    inset 0 0 12px rgba(120,70,0,.5),
    0 2px 0 #33240a,
    0 0 16px rgba(255,190,80,.30);
}
.opt-group .btn[aria-pressed="false"] {
  color: #7b7266;
  background: linear-gradient(180deg, #38352f 0%, #292723 55%, #1b1a17 100%);
  border-color: #423c35;
  text-shadow: none;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.05),
    0 4px 0 #121110,
    0 6px 10px rgba(0,0,0,.5);
}
.opt-group .btn[aria-pressed="false"]:hover {
  filter: none;
  color: #cdbb94;
  border-color: #6d5623;
  background: linear-gradient(180deg, #46413a 0%, #332f29 55%, #23211d 100%);
}

/* small toggle groups inside the panel */
.opt-group { display: flex; gap: 8px; justify-content: center; margin: 4px 0 14px; flex-wrap: wrap; }
.opt-group .btn { padding: 7px 14px; font-size: 10.5px; letter-spacing: .16em; }
.opt-label {
  display: block;
  margin: 14px 0 6px;
  font-size: 10px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.keyhint { margin-top: 14px; font-size: 10.5px; letter-spacing: .18em; color: #6d5c43; text-transform: uppercase; }

.badge-win { color: var(--glow); text-shadow: 0 0 22px rgba(255,180,60,.6); }

/* ============================================================
   Hub page
   ============================================================ */
.hub { min-height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 26px; padding: 40px 20px; }
.cards { display: flex; gap: 26px; flex-wrap: wrap; justify-content: center; }
.card {
  width: 330px;
  text-decoration: none;
  color: inherit;
  border-radius: 10px;
  overflow: hidden;
  border: 2px solid var(--brass-dark);
  background: linear-gradient(180deg, #241a11, #100b07);
  box-shadow: inset 0 1px 0 rgba(255,225,160,.2), 0 16px 40px rgba(0,0,0,.8);
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.card:hover { transform: translateY(-6px); border-color: var(--brass); box-shadow: 0 24px 50px rgba(0,0,0,.9), 0 0 30px rgba(255,180,60,.15); }
.card canvas { display: block; width: 100%; height: 190px; background: #0a0908; border-bottom: 2px solid #2b1d08; }
.card .body { padding: 16px 18px 20px; }
.card h3 { margin: 0 0 6px; font-size: 15px; letter-spacing: .2em; text-transform: uppercase; color: var(--brass-light); }
.card .kicker { font-size: 9.5px; letter-spacing: .3em; text-transform: uppercase; color: var(--copper); }
.card p { margin: 8px 0 0; font-size: 12px; line-height: 1.6; color: var(--ink-dim); }