:root {
  --glacier-950: #0A2E37;
  --glacier-900: #0D3B45;
  --glacier-700: #1B5C6B;
  --glacier-500: #2C7E8F;
  --aurora: #5FE8C4;
  --aurora-dim: #3BAE93;
  --coral: #FF7A59;
  --coral-dim: #E8613E;
  --snow: #F5FAFA;
  --snow-dim: #DCEBEC;
  --gold: #F5B94D;
  --ink: #0A2226;

  --gem-blue: #3E8EDE;
  --gem-teal: #33C2C2;
  --gem-pink: #F06BA8;
  --gem-yellow: #F5C842;
  --gem-red: #E85454;
  --gem-green: #6BC55A;

  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 9px;

  --font-display: 'Baloo 2', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--glacier-950);
  color: var(--snow);
  font-family: var(--font-body);
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

::selection { background: var(--aurora); color: var(--ink); }

/* ---------- Loading / auth ---------- */
.gate {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background:
    radial-gradient(ellipse at 20% -10%, rgba(95,232,196,0.18), transparent 55%),
    radial-gradient(ellipse at 90% 110%, rgba(255,122,89,0.12), transparent 50%),
    var(--glacier-950);
}

.gate-card {
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.gate-mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 40px;
  letter-spacing: -0.02em;
  color: var(--snow);
  margin: 0 0 4px;
}

.gate-mark span { color: var(--aurora); }

.gate-sub {
  font-size: 14px;
  color: var(--snow-dim);
  margin: 0 0 32px;
  opacity: 0.75;
}

.gate input {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--snow);
  font-size: 16px;
  margin-bottom: 14px;
  outline: none;
}
.gate input:focus { border-color: var(--aurora); }

.gate-btn {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--coral);
  color: white;
  font-weight: 700;
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.01em;
  transition: transform 0.1s ease, background 0.15s ease;
}
.gate-btn:active { transform: scale(0.97); }
.gate-btn:hover { background: var(--coral-dim); }

.gate-error {
  color: var(--coral);
  font-size: 13px;
  margin-top: 12px;
  min-height: 16px;
}

/* ---------- Top bar (currency) ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--glacier-900);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  position: sticky;
  top: 0;
  z-index: 20;
}

.pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
  padding: 6px 10px 6px 6px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-display);
}

.pill-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

.pill-icon.coin { background: var(--gold); color: #6B4A00; }
.pill-icon.gem { background: var(--gem-pink); color: white; }
.pill-icon.life { background: var(--coral); color: white; }

.topbar .spacer { flex: 1; }

.level-badge {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  background: rgba(95,232,196,0.14);
  color: var(--aurora);
  border: 1px solid rgba(95,232,196,0.3);
  border-radius: 999px;
  padding: 6px 12px;
}

/* ---------- Main scroll area ---------- */
.main {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 90px;
}

/* ---------- Trail / map view ---------- */
.trail-header {
  padding: 22px 20px 10px;
}

.trail-header h1 {
  font-family: var(--font-display);
  font-size: 22px;
  margin: 0 0 4px;
  font-weight: 700;
}

.trail-header p {
  margin: 0;
  font-size: 13px;
  color: var(--snow-dim);
  opacity: 0.7;
}

.rewards-row {
  display: flex;
  gap: 10px;
  padding: 6px 16px 18px;
  overflow-x: auto;
}

.reward-card {
  flex: 0 0 auto;
  width: 120px;
  background: linear-gradient(160deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius-md);
  padding: 12px 12px 10px;
  text-align: left;
  transition: transform 0.12s ease;
}
.reward-card:active { transform: scale(0.96); }

.reward-card .icon { font-size: 22px; margin-bottom: 6px; display: block; }
.reward-card .label { font-family: var(--font-display); font-weight: 600; font-size: 13px; display: block; margin-bottom: 2px; }
.reward-card .status { font-size: 11px; color: var(--snow-dim); opacity: 0.65; }
.reward-card.ready { border-color: var(--aurora); box-shadow: 0 0 0 1px rgba(95,232,196,0.25) inset; }
.reward-card.ready .status { color: var(--aurora); opacity: 1; }

.trail {
  position: relative;
  padding: 30px 0 60px;
}

.trail-path {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 4px;
  background: repeating-linear-gradient(to bottom, rgba(95,232,196,0.35) 0 10px, transparent 10px 20px);
  transform: translateX(-50%);
  z-index: 0;
}

.trail-node-row {
  position: relative;
  display: flex;
  justify-content: center;
  margin: 26px 0;
  z-index: 1;
}

.trail-node-row.offset-left { justify-content: flex-start; padding-left: 22%; }
.trail-node-row.offset-right { justify-content: flex-end; padding-right: 22%; }

.node {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  position: relative;
  transition: transform 0.12s ease;
  flex-direction: column;
}
.node:active { transform: scale(0.94); }

.node.cleared {
  background: linear-gradient(160deg, var(--aurora), var(--aurora-dim));
  color: var(--ink);
  box-shadow: 0 4px 14px rgba(95,232,196,0.35);
}

.node.current {
  background: linear-gradient(160deg, var(--coral), var(--coral-dim));
  color: white;
  box-shadow: 0 0 0 5px rgba(255,122,89,0.18), 0 6px 18px rgba(255,122,89,0.4);
  animation: pulse 2.2s ease-in-out infinite;
}

.node.locked {
  background: rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.3);
  border: 1px dashed rgba(255,255,255,0.15);
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 5px rgba(255,122,89,0.18), 0 6px 18px rgba(255,122,89,0.4); }
  50% { box-shadow: 0 0 0 9px rgba(255,122,89,0.08), 0 6px 18px rgba(255,122,89,0.3); }
}

.node .stars {
  position: absolute;
  bottom: -16px;
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--gold);
}

/* ---------- Bottom nav ---------- */
.bottomnav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: var(--glacier-900);
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 8px 6px calc(env(safe-area-inset-bottom, 0px) + 8px);
  z-index: 20;
}

.navbtn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 0;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  color: var(--snow-dim);
  opacity: 0.6;
}

.navbtn .navicon { font-size: 19px; }
.navbtn.active { opacity: 1; color: var(--aurora); }

/* ---------- Level intro modal ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5,20,24,0.72);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 20px;
}

.modal-card {
  width: 100%;
  max-width: 340px;
  background: linear-gradient(165deg, var(--glacier-700), var(--glacier-900));
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 26px 22px 22px;
  text-align: center;
}

.modal-card h2 {
  font-family: var(--font-display);
  font-size: 20px;
  margin: 0 0 14px;
}

.modal-goal {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 12px;
  font-size: 13px;
  margin-bottom: 18px;
  font-weight: 600;
}

.modal-stat-row {
  display: flex;
  justify-content: center;
  gap: 18px;
  font-size: 12px;
  color: var(--snow-dim);
  margin-bottom: 20px;
}

.big-btn {
  width: 100%;
  padding: 15px;
  border-radius: var(--radius-md);
  background: var(--coral);
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  transition: transform 0.1s ease;
}
.big-btn:active { transform: scale(0.97); }
.big-btn:disabled { opacity: 0.4; }

.ghost-btn {
  margin-top: 10px;
  font-size: 13px;
  color: var(--snow-dim);
  padding: 8px;
  opacity: 0.7;
}

/* ---------- Game board ---------- */
.game-screen {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--glacier-950);
}

.game-hud {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--glacier-900);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.hud-box {
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  text-align: center;
}
.hud-box .num { font-family: var(--font-display); font-weight: 700; font-size: 18px; display: block; line-height: 1.1; }
.hud-box .lbl { font-size: 9px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--snow-dim); opacity: 0.6; }

.hud-goal {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  overflow: hidden;
}

.close-x {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.board-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  overflow: hidden;
}

.board {
  display: grid;
  gap: 4px;
  width: 100%;
  max-width: 420px;
  aspect-ratio: var(--cols) / var(--rows);
}

.tile {
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  font-size: 18px;
  transition: transform 0.12s ease, opacity 0.15s ease;
  user-select: none;
}

.tile.selected { transform: scale(0.9); box-shadow: 0 0 0 3px var(--aurora); }
.tile.matched { animation: pop 0.25s ease forwards; }
@keyframes pop { to { transform: scale(0); opacity: 0; } }

.tile.color-blue { background: linear-gradient(160deg, #5FAEF0, var(--gem-blue)); }
.tile.color-teal { background: linear-gradient(160deg, #5FE0E0, var(--gem-teal)); }
.tile.color-pink { background: linear-gradient(160deg, #F591C2, var(--gem-pink)); }
.tile.color-yellow { background: linear-gradient(160deg, #F8D876, var(--gem-yellow)); }
.tile.color-red { background: linear-gradient(160deg, #F07A7A, var(--gem-red)); }
.tile.color-green { background: linear-gradient(160deg, #8FDA7F, var(--gem-green)); }

.tile.special-striped-row { box-shadow: inset 0 0 0 2px white, 0 0 10px rgba(255,255,255,0.6); }
.tile.special-striped-row::before {
  content: ''; position: absolute; left: 2px; right: 2px; top: 44%; height: 12%;
  background: rgba(255,255,255,0.85); border-radius: 3px;
}
.tile.special-striped-col { box-shadow: inset 0 0 0 2px white, 0 0 10px rgba(255,255,255,0.6); }
.tile.special-striped-col::before {
  content: ''; position: absolute; top: 2px; bottom: 2px; left: 44%; width: 12%;
  background: rgba(255,255,255,0.85); border-radius: 3px;
}
.tile.special-wrapped {
  box-shadow: inset 0 0 0 3px var(--gold), 0 0 12px rgba(245,185,77,0.7);
  border-radius: 6px;
}
.tile.special-bomb {
  box-shadow: inset 0 0 0 3px white, 0 0 16px rgba(255,255,255,0.85);
  background-image: radial-gradient(circle at 50% 40%, white 0%, rgba(255,255,255,0.35) 40%, transparent 65%);
  filter: saturate(1.4);
}

.tile .overlay-tar {
  position: absolute; inset: 3px;
  border-radius: 8px;
  background: rgba(10,20,20,0.72);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px;
}
.tile .overlay-ice {
  position: absolute; inset: 0;
  border-radius: 10px;
  background: rgba(200,240,245,0.35);
  border: 2px solid rgba(255,255,255,0.5);
}
.tile .overlay-tire::after {
  content: '⚙';
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: rgba(0,0,0,0.55);
  font-size: 14px;
}

.game-footer {
  padding: 10px 16px calc(env(safe-area-inset-bottom, 0px) + 14px);
  background: var(--glacier-900);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.bins-row {
  display: flex;
  gap: 4px;
  justify-content: center;
  margin-bottom: 4px;
}
.bin {
  width: 100%;
  max-width: 46px;
  height: 18px;
  border-radius: 4px 4px 8px 8px;
  border: 1.5px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.04);
  position: relative;
  overflow: hidden;
}
.bin .fill { position: absolute; bottom: 0; left: 0; right: 0; background: var(--aurora); transition: height 0.2s ease; }

/* ---------- Result modal ---------- */
.result-stars {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 14px 0 18px;
}
.result-stars .star {
  font-size: 34px;
  opacity: 0.2;
  transform: scale(0.7);
  transition: all 0.3s ease;
}
.result-stars .star.earned {
  opacity: 1;
  transform: scale(1);
  color: var(--gold);
}

.reward-line {
  display: flex;
  justify-content: center;
  gap: 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 20px;
}

/* ---------- Slot machine ---------- */
.slot-reels {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin: 18px 0;
}
.reel {
  width: 66px;
  height: 66px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
}
.reel.spinning { animation: spin-blur 0.15s linear infinite; }
@keyframes spin-blur { 0% { filter: blur(0); } 50% { filter: blur(3px); } 100% { filter: blur(0); } }

/* ---------- Friends view ---------- */
.friend-list { padding: 16px; }
.friend-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: 10px;
}
.friend-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(160deg, var(--aurora), var(--gem-blue));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; color: var(--ink); font-size: 16px;
  flex-shrink: 0;
}
.friend-info { flex: 1; }
.friend-name { font-family: var(--font-display); font-weight: 600; font-size: 14px; }
.friend-sub { font-size: 11px; color: var(--snow-dim); opacity: 0.65; }
.friend-action {
  background: var(--aurora);
  color: var(--ink);
  font-weight: 700;
  font-size: 12px;
  padding: 8px 14px;
  border-radius: 999px;
}
.friend-action:disabled { background: rgba(255,255,255,0.08); color: var(--snow-dim); opacity: 0.5; }

.section-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  color: var(--snow-dim);
  opacity: 0.6;
  padding: 4px 16px 8px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--glacier-700);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  z-index: 60;
  white-space: nowrap;
  animation: toast-in 0.25s ease;
}
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 10px); } to { opacity: 1; transform: translate(-50%, 0); } }