:root {
  --bg: #07080f;
  --bg2: #0d0f1c;
  --panel: #121527;
  --panel2: #1a1e36;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f5fb;
  --muted: #8a90ab;
  --gold: #f6c453;
  --gold-2: #e8a33d;
  --gold-soft: #ffd98a;
  --violet: #7c5cff;
  --green: #2ee6a6;
  --red: #ff4d63;
  --radius: 18px;
  --font-display: "Sora", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body { padding-bottom: 56px; overflow-x: hidden; }

/* ---------- ambient background ---------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% -10%, #1a1633 0%, transparent 55%),
    linear-gradient(180deg, #0a0c18 0%, #07080f 100%);
}
.bg::before, .bg::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  will-change: transform;
}
.bg::before {
  width: 420px; height: 420px;
  left: -120px; top: -80px;
  background: radial-gradient(circle, rgba(124, 92, 255, 0.35), transparent 65%);
  animation: drift1 22s ease-in-out infinite alternate;
}
.bg::after {
  width: 480px; height: 480px;
  right: -160px; top: 30%;
  background: radial-gradient(circle, rgba(246, 196, 83, 0.20), transparent 65%);
  animation: drift2 28s ease-in-out infinite alternate;
}
.bg .grain {
  position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: 0.4;
}

@keyframes drift1 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(60px, 80px) scale(1.15); }
}
@keyframes drift2 {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(-70px, -50px) scale(1.1); }
}

/* ---------- topbar ---------- */
#topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(13, 15, 28, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.5px;
  background: linear-gradient(120deg, #fff 10%, var(--gold-soft) 50%, var(--gold-2) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand .diamond { -webkit-text-fill-color: initial; }
.top-actions { display: flex; gap: 8px; }

.icon-btn {
  width: 40px; height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  font-size: 18px;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform .12s, background .2s, border-color .2s;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.08); border-color: var(--border-strong); }
.icon-btn:active { transform: scale(.92); }

/* ---------- balance hero ---------- */
#balanceBar {
  display: flex;
  justify-content: center;
  padding: 20px 16px 14px;
}
.balance-chip {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 24px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255,255,255,0.08);
  min-width: 220px;
  justify-content: center;
}
.coin {
  font-size: 34px;
  filter: drop-shadow(0 4px 10px rgba(246, 196, 83, 0.5));
  animation: coinFloat 4s ease-in-out infinite;
}
@keyframes coinFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}
.balance-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  font-weight: 600;
}
.balance-value {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(120deg, var(--gold-soft), var(--gold-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-variant-numeric: tabular-nums;
}
.balance-value.bump { animation: bump 0.45s ease; }
@keyframes bump {
  0% { transform: scale(1); }
  35% { transform: scale(1.12); }
  100% { transform: scale(1); }
}

/* ---------- nav ---------- */
#nav {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 6px 16px 16px;
  scrollbar-width: none;
  max-width: 560px;
  margin: 0 auto;
}
#nav::-webkit-scrollbar { display: none; }
.nav-btn {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all .2s ease;
  position: relative;
  overflow: hidden;
}
.nav-btn .nicon { font-size: 17px; }
.nav-btn:hover { color: var(--text); border-color: var(--border-strong); }
.nav-btn.active {
  background: linear-gradient(135deg, rgba(246,196,83,0.18), rgba(232,163,61,0.10));
  color: var(--gold-soft);
  border-color: rgba(246, 196, 83, 0.35);
  box-shadow: 0 6px 20px rgba(246, 196, 83, 0.15);
}

/* ---------- stage ---------- */
#game {
  padding: 4px 16px 24px;
  max-width: 520px;
  margin: 0 auto;
}
#game .enter { animation: fadeUp 0.35s cubic-bezier(.22,.9,.3,1) both; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- cards ---------- */
.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 14px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255,255,255,0.05);
}

/* ---------- buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  font-weight: 700;
  font-size: 15px;
  font-family: var(--font-body);
  cursor: pointer;
  transition: transform .1s, box-shadow .2s, filter .2s, opacity .2s;
  user-select: none;
  overflow: hidden;
  isolation: isolate;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .45; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, #ffe09a 0%, var(--gold) 45%, var(--gold-2) 100%);
  border: none;
  color: #241503;
  box-shadow: 0 8px 22px rgba(246, 196, 83, 0.32);
}
.btn-primary::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.55), transparent 45%);
  opacity: 0.5;
  z-index: -1;
}
.btn-primary:hover { filter: brightness(1.05); box-shadow: 0 10px 28px rgba(246, 196, 83, 0.42); }

.btn-success {
  background: linear-gradient(135deg, #3ef0b0, #1db985);
  border: none;
  color: #04231a;
  box-shadow: 0 8px 22px rgba(46, 230, 166, 0.30);
}
.btn-danger {
  background: linear-gradient(135deg, #ff6b7d, #ef3d55);
  border: none;
  color: #fff;
  box-shadow: 0 8px 22px rgba(255, 77, 99, 0.28);
}
.btn-ghost { background: transparent; border: 1px solid var(--border-strong); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 20px; font-size: 16px; }

/* ---------- form ---------- */
.row { display: flex; gap: 10px; align-items: center; }
.col { display: flex; flex-direction: column; gap: 10px; }
.grow { flex: 1; }

.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .6px;
}

input[type="number"], input[type="text"] {
  width: 100%;
  padding: 13px 15px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(9, 11, 22, 0.7);
  color: var(--text);
  font-size: 16px;
  font-family: var(--font-body);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
input:focus {
  border-color: rgba(246, 196, 83, 0.5);
  box-shadow: 0 0 0 3px rgba(246, 196, 83, 0.12);
}

.seg { display: flex; gap: 8px; flex-wrap: wrap; }
.seg-btn {
  padding: 10px 15px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all .18s ease;
}
.seg-btn:hover { color: var(--text); }
.seg-btn.active {
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.25), rgba(124, 92, 255, 0.12));
  color: #cfc3ff;
  border-color: rgba(124, 92, 255, 0.45);
}

/* ---------- stats ---------- */
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stat {
  background: rgba(9, 11, 22, 0.55);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 10px;
  text-align: center;
  transition: transform .15s;
}
.stat .k {
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
}
.stat .v {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  margin-top: 3px;
  font-variant-numeric: tabular-nums;
}
.stat.hl .v { background: linear-gradient(120deg, var(--gold-soft), var(--gold-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* ---------- result banner ---------- */
.result-banner {
  text-align: center;
  padding: 15px;
  border-radius: 14px;
  font-weight: 800;
  font-size: 17px;
  margin-bottom: 14px;
  font-family: var(--font-display);
  animation: popIn .35s cubic-bezier(.2,.9,.3,1.4) both;
}
.result-banner.win {
  background: linear-gradient(135deg, rgba(46, 230, 166, 0.16), rgba(29, 185, 133, 0.08));
  color: var(--green);
  border: 1px solid rgba(46, 230, 166, 0.3);
  box-shadow: 0 6px 24px rgba(46, 230, 166, 0.15);
}
.result-banner.lose {
  background: linear-gradient(135deg, rgba(255, 77, 99, 0.16), rgba(239, 61, 85, 0.08));
  color: var(--red);
  border: 1px solid rgba(255, 77, 99, 0.3);
  box-shadow: 0 6px 24px rgba(255, 77, 99, 0.15);
}
@keyframes popIn {
  from { opacity: 0; transform: scale(.92); }
  to   { opacity: 1; transform: scale(1); }
}

/* ---------- canvas ---------- */
canvas { display: block; margin: 0 auto; }

/* ---------- range ---------- */
input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(124,92,255,.6), rgba(246,196,83,.6));
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #fff, var(--gold));
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(246, 196, 83, 0.5);
}

/* ---------- mines ---------- */
.mines-grid {
  display: grid;
  gap: 7px;
  margin: 0 auto;
  perspective: 700px;
}
.mines-cell {
  aspect-ratio: 1;
  border-radius: 11px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #1b1f38, #14172a);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  transition: transform .12s, background .18s, box-shadow .18s;
  box-shadow: 0 3px 8px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.06);
}
.mines-cell:not(.revealed):hover { transform: translateY(-2px); border-color: var(--border-strong); }
.mines-cell:not(.revealed):active { transform: scale(.94); }
.mines-cell.revealed { cursor: default; }
.mines-cell.reveal-anim { animation: flipIn .3s ease both; }
.mines-cell.gem {
  background: linear-gradient(135deg, rgba(46,230,166,.25), rgba(29,185,133,.12));
  color: var(--green);
  border-color: rgba(46,230,166,.35);
  box-shadow: 0 4px 16px rgba(46,230,166,.25);
}
.mines-cell.bomb {
  background: linear-gradient(135deg, rgba(255,77,99,.3), rgba(239,61,85,.15));
  border-color: rgba(255,77,99,.4);
  animation: shake .4s ease;
}
@keyframes flipIn {
  from { transform: rotateY(90deg); opacity: .4; }
  to   { transform: rotateY(0); opacity: 1; }
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  50% { transform: translateX(3px); }
  75% { transform: translateX(-2px); }
}

/* ---------- crash ---------- */
.crash-chart {
  position: relative;
  height: 260px;
  border-radius: 16px;
  overflow: hidden;
  background: radial-gradient(120% 100% at 50% 0%, #141731 0%, #0a0c18 70%);
  border: 1px solid var(--border);
}
.crash-mult {
  position: absolute;
  left: 50%; top: 18px;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 46px;
  font-weight: 800;
  z-index: 2;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(120deg, #fff, var(--gold-soft));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 4px 20px rgba(246,196,83,.3);
}
.crash-mult.crashed { background: linear-gradient(120deg, #ffb3bd, var(--red)); -webkit-background-clip: text; background-clip: text; }
.crash-mult.cashed { background: linear-gradient(120deg, #c8ffec, var(--green)); -webkit-background-clip: text; background-clip: text; }
.crash-rocket {
  position: absolute;
  left: 8px;
  top: 0;
  font-size: 24px;
  filter: drop-shadow(0 4px 10px rgba(124,92,255,.6));
  pointer-events: none;
  will-change: left, top;
}

/* ---------- dice dial ---------- */
.dice-dial {
  text-align: center;
  padding: 22px 0 18px;
}
.dice-roll {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(120deg, #fff 20%, var(--gold-soft) 55%, var(--gold-2) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: filter .2s;
}
.dice-sub {
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
}

/* ---------- wheel ---------- */
.wheel-wrap { position: relative; display: inline-block; }

/* ---------- toast ---------- */
#toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%) translateY(90px);
  background: rgba(20, 23, 40, 0.95);
  border: 1px solid var(--border-strong);
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  transition: transform .3s cubic-bezier(.2,.9,.3,1.2);
  z-index: 50;
  max-width: 88vw;
  text-align: center;
  backdrop-filter: blur(10px);
  box-shadow: 0 12px 34px rgba(0,0,0,.5);
}
#toast.show { transform: translateX(-50%) translateY(0); }

/* ---------- modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 5, 10, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
  animation: fade .2s ease;
}
.modal.hidden { display: none; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.modal-card {
  background: linear-gradient(180deg, #1b1f36, #121528);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 22px;
  width: 100%;
  max-width: 430px;
  max-height: 84vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 24px 60px rgba(0,0,0,.6);
  animation: popIn .28s cubic-bezier(.2,.9,.3,1.3) both;
}
.modal-close {
  position: absolute;
  top: 12px; right: 12px;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 16px;
  cursor: pointer;
  transition: all .15s;
}
.modal-close:hover { color: var(--text); background: rgba(255,255,255,.1); }
.fair-line {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
  margin: 8px 0;
  padding: 10px;
  background: rgba(9,11,22,.6);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.hidden { display: none !important; }