:root {
  --bg:       #0c1020;
  --bg2:      #141828;
  --bg3:      #1c2238;
  --border:   #252d48;
  --accent:   #7c3aed;
  --accent2:  #a855f7;
  --gold:     #f59e0b;
  --green:    #10b981;
  --red:      #ef4444;
  --text:     #f1f5f9;
  --mid:      #94a3b8;
  --dim:      #475569;
  --radius:   12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  height: 100%;
  overscroll-behavior: none;
  user-select: none;
  -webkit-user-select: none;
}

/* ── Layout ──────────────────────────────── */
#app { display: flex; flex-direction: column; min-height: 100dvh; }

/* ── Topbar ──────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.logo { font-weight: 800; font-size: 18px; letter-spacing: -.02em; color: var(--text); }
.logo span { color: var(--accent2); }
.balance-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--green);
}

/* ── Auth screen ──────────────────────────────── */
#auth-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  gap: 12px;
}
.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}
.auth-title { font-size: 20px; font-weight: 700; margin-bottom: 20px; }
.auth-tabs { display: flex; gap: 4px; background: var(--bg3); border-radius: 8px; padding: 4px; margin-bottom: 20px; }
.auth-tab {
  flex: 1; padding: 8px; border-radius: 6px; font-size: 14px; font-weight: 600;
  background: none; border: none; color: var(--mid); cursor: pointer; transition: all .2s;
}
.auth-tab.active { background: var(--accent); color: #fff; }

/* ── Forms ──────────────────────────────── */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field label { font-size: 12px; font-weight: 600; color: var(--mid); text-transform: uppercase; letter-spacing: .04em; }
.field input, .field select {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color .2s;
  width: 100%;
}
.field input:focus { border-color: var(--accent); }
.btn {
  width: 100%; padding: 14px; border-radius: 10px; border: none;
  font-size: 15px; font-weight: 700; cursor: pointer; transition: all .15s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:active { opacity: .85; transform: scale(.98); }
.btn-success { background: var(--green); color: #fff; }
.btn-gold    { background: var(--gold); color: #000; }
.btn-ghost   { background: var(--bg3); color: var(--text); border: 1px solid var(--border); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

/* ── Game screen ──────────────────────────────── */
#game-screen { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.game-top {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Prize bar */
.prize-bar-wrap {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 99px;
  height: 28px;
  position: relative;
  overflow: hidden;
}
.prize-bar-fill {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width .4s cubic-bezier(.4,0,.2,1);
  position: relative;
}
.prize-bar-fill::after {
  content: '';
  position: absolute; right: 0; top: 0; bottom: 0; width: 24px;
  background: rgba(255,255,255,.3);
  border-radius: 99px;
  filter: blur(6px);
}
.prize-bar-label {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  text-shadow: 0 1px 4px rgba(0,0,0,.6);
}

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}
.stat-box {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  text-align: center;
}
.stat-box .val { font-size: 16px; font-weight: 800; color: var(--accent2); }
.stat-box .lbl { font-size: 10px; color: var(--dim); text-transform: uppercase; letter-spacing: .06em; }

/* Board canvas */
#board-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  position: relative;
  touch-action: none;
}
#game-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  border-radius: 10px;
  cursor: pointer;
}

/* Tray */
.tray {
  padding: 10px 16px 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  flex-shrink: 0;
}
.tray-slot {
  background: var(--bg2);
  border: 2px solid var(--border);
  border-radius: 10px;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color .2s, transform .1s;
  position: relative;
  overflow: hidden;
}
.tray-slot.selected { border-color: var(--accent2); box-shadow: 0 0 12px rgba(168,85,247,.4); }
.tray-slot.empty    { opacity: .3; cursor: default; }
.tray-slot canvas   { max-width: 90%; max-height: 90%; }

/* Cashout btn */
.cashout-area { padding: 0 16px 8px; }
.cashout-area .btn { height: 48px; font-size: 16px; }

/* ── Result overlay ──────────────────────────────── */
#result-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,.75);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  backdrop-filter: blur(4px);
}
.result-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  width: 100%; max-width: 340px;
  text-align: center;
  animation: popIn .25s cubic-bezier(.4,0,.2,1);
}
@keyframes popIn { from { opacity:0; transform: scale(.9); } to { opacity:1; transform: scale(1); } }
.result-icon { font-size: 56px; margin-bottom: 12px; line-height: 1; }
.result-title { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.result-amount { font-size: 32px; font-weight: 900; margin-bottom: 16px; }
.result-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }
.result-stat { background: var(--bg3); border-radius: 8px; padding: 10px; }
.result-stat .v { font-size: 18px; font-weight: 700; color: var(--accent2); }
.result-stat .l { font-size: 11px; color: var(--dim); }
.fair-toggle { background: none; border: none; color: var(--dim); font-size: 12px; cursor: pointer; margin-bottom: 16px; text-decoration: underline; }
.fair-info { background: var(--bg3); border-radius: 8px; padding: 12px; font-size: 11px; color: var(--mid); text-align: left; word-break: break-all; line-height: 1.6; margin-bottom: 16px; }
.fair-info code { color: var(--accent2); font-size: 10px; }

/* ── Wallet / Modal ──────────────────────────────── */
#wallet-modal {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(0,0,0,.7);
  display: flex; align-items: flex-end; justify-content: center;
  backdrop-filter: blur(2px);
}
.modal-sheet {
  background: var(--bg2);
  border-radius: 20px 20px 0 0;
  border-top: 1px solid var(--border);
  padding: 20px 20px 32px;
  width: 100%; max-width: 480px;
  animation: slideUp .25s ease;
}
@keyframes slideUp { from { transform: translateY(60px); opacity:0; } to { transform: none; opacity:1; } }
.modal-handle { width: 40px; height: 4px; background: var(--border); border-radius: 99px; margin: 0 auto 20px; }
.modal-tabs { display: flex; gap: 4px; background: var(--bg3); border-radius: 8px; padding: 4px; margin-bottom: 18px; }
.modal-tab {
  flex: 1; padding: 8px; border-radius: 6px; font-size: 14px; font-weight: 600;
  background: none; border: none; color: var(--mid); cursor: pointer; transition: all .2s;
}
.modal-tab.active { background: var(--accent); color: #fff; }

/* Bet selection */
.bet-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 16px; }
.bet-chip {
  padding: 10px 6px; background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; text-align: center; font-size: 13px; font-weight: 700;
  cursor: pointer; transition: all .15s; color: var(--mid);
}
.bet-chip.selected { background: var(--accent); border-color: var(--accent); color: #fff; }
.bet-input-wrap {
  display: flex; gap: 8px; align-items: center; margin-bottom: 16px;
}
.bet-input-wrap input {
  flex: 1; background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px; color: var(--text); font-size: 16px;
  font-weight: 700; outline: none;
}
.bet-input-wrap input:focus { border-color: var(--accent); }

/* QR Code area */
.qr-wrap { text-align: center; padding: 16px; background: #fff; border-radius: 10px; margin: 16px 0; }
.qr-wrap img { width: 180px; height: 180px; }
.pix-copy { background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; padding: 12px; font-size: 11px; color: var(--mid); word-break: break-all; cursor: pointer; margin-bottom: 12px; }
.pix-copy:active { background: var(--border); }

/* ── Toast ──────────────────────────────── */
#toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 99px; padding: 10px 20px;
  font-size: 14px; font-weight: 600; color: var(--text);
  z-index: 200; white-space: nowrap;
  opacity: 0; transition: opacity .25s;
  pointer-events: none;
}
#toast.show { opacity: 1; }
#toast.err  { border-color: var(--red); color: var(--red); }
#toast.ok   { border-color: var(--green); color: var(--green); }

/* ── Combo float ──────────────────────────────── */
.combo-float {
  position: fixed; top: 40%; left: 50%; transform: translateX(-50%);
  font-size: 24px; font-weight: 900; color: var(--gold);
  pointer-events: none; z-index: 50;
  text-shadow: 0 2px 8px rgba(0,0,0,.8);
  animation: comboAnim .8s ease forwards;
}
@keyframes comboAnim {
  from { opacity: 1; transform: translateX(-50%) translateY(0) scale(1.2); }
  to   { opacity: 0; transform: translateX(-50%) translateY(-40px) scale(1); }
}

.hidden { display: none !important; }