:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --panel-2: #f8fafd;
  --border: #e6eaf2;
  --accent: #2f6bff;
  --accent-2: #7c3aed;
  --green: #16a34a;
  --green-bg: #e9f9ef;
  --text: #101828;
  --muted: #667085;
  --danger: #dc2626;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 4px 16px rgba(16, 24, 40, .06);
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
[hidden] { display: none !important; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #e9edf4;
  color: var(--text);
  display: flex;
  justify-content: center;
  min-height: 100vh;
}

.phone {
  width: 100%;
  max-width: 440px;
  min-height: 100vh;
  background: var(--panel);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  box-shadow: 0 0 40px rgba(16, 24, 40, .08);
}

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; position: sticky; top: 0; z-index: 5;
  background: rgba(255,255,255,.9); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 18px; letter-spacing: .3px; }
.logo { color: var(--accent); }
.icon-btn { background: none; border: none; color: var(--muted); font-size: 20px; cursor: pointer; }

/* Screens */
.screen { display: none; flex: 1; padding: 20px; flex-direction: column; background: var(--bg); }
.screen.active { display: flex; }
#screen-main.active { display: flex; padding-bottom: 84px; }

/* Hero */
.hero { text-align: center; margin: 40px 0 24px; }
.hero.small { margin: 24px 0 16px; }
.hero-logo {
  width: 72px; height: 72px; margin: 0 auto 16px; border-radius: 22px;
  display: grid; place-items: center; font-size: 34px; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 32px rgba(47, 107, 255, .3);
}
.hero h1 { font-size: 26px; }
.tagline { color: var(--muted); margin-top: 6px; font-size: 14px; }

/* Card */
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; display: flex; flex-direction: column; gap: 12px;
  box-shadow: var(--shadow);
}
label { font-size: 13px; color: var(--muted); }
input, textarea {
  width: 100%; padding: 14px 16px; border-radius: 12px;
  border: 1px solid #d7dde9; background: #fff; color: var(--text); font-size: 16px;
  outline: none; transition: border .15s, box-shadow .15s;
}
textarea { resize: vertical; font-family: inherit; font-size: 14px; }
input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(47, 107, 255, .12); }
.otp-input { text-align: center; letter-spacing: 12px; font-size: 24px; font-weight: 700; }

/* Buttons */
.btn {
  padding: 14px 16px; border-radius: 12px; border: none; font-size: 15px; font-weight: 600;
  cursor: pointer; transition: transform .05s, opacity .15s; width: 100%;
}
.btn:active { transform: scale(.98); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; box-shadow: 0 4px 14px rgba(47, 107, 255, .25); }
.btn.ghost { background: transparent; color: var(--muted); border: 1px solid #d7dde9; }
.btn.faucet { background: #eef3ff; color: var(--accent); border: 1px dashed #b9ccf5; margin: 14px 0; }
.btn.danger { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }
.btn[disabled] { opacity: .5; pointer-events: none; }

.hint { font-size: 13px; color: var(--muted); min-height: 16px; }
.hint.error { color: var(--danger); }
.hint.ok { color: var(--green); }
.footnote { text-align: center; color: var(--muted); font-size: 12px; margin-top: auto; padding-top: 24px; }
.legal-link { color: var(--accent); text-decoration: none; }
.check-row { display: flex; align-items: flex-start; gap: 8px; font-size: 12px; color: var(--muted); line-height: 1.5; margin: 10px 0; cursor: pointer; }
.check-row input[type="checkbox"] { width: 16px; height: 16px; margin-top: 2px; flex-shrink: 0; accent-color: var(--accent); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.dev-banner {
  background: var(--green-bg); border: 1px solid #b7e6c8; color: #15803d;
  padding: 10px 12px; border-radius: 10px; font-size: 13px; text-align: center;
}

/* Balance card */
.action-row { display: flex; gap: 10px; margin-top: 12px; }
.balance-card {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff;
  border: none; border-radius: 20px; padding: 22px; margin-bottom: 4px;
  box-shadow: 0 10px 30px rgba(47, 107, 255, .28);
}
.balance-card .muted { color: rgba(255,255,255,.75); }
.balance-card b { color: #fff; }
.muted { color: var(--muted); font-size: 13px; }
.center { text-align: center; }
.small-note { font-size: 12px; margin: -4px 0 12px; }
.balance { font-size: 38px; font-weight: 800; margin: 6px 0; }
.balance small { font-size: 16px; color: rgba(255,255,255,.75); font-weight: 600; }
.address {
  font-family: monospace; font-size: 12px; color: #fff;
  background: rgba(255,255,255,.16); padding: 8px 10px; border-radius: 8px; display: inline-block;
  cursor: pointer; word-break: break-all;
}
.balance-row { display: flex; justify-content: space-between; margin-top: 18px; gap: 8px; }
.balance-row div { display: flex; flex-direction: column; gap: 2px; }
.balance-row b { font-size: 15px; }

.section-title { font-size: 15px; margin: 22px 0 12px; }

/* Stats grid */
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stat {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px;
  box-shadow: var(--shadow);
}
.stat .k { font-size: 12px; color: var(--muted); }
.stat .v { font-size: 18px; font-weight: 700; margin-top: 4px; }

/* Tokenomics supply list */
.supply-list { display: flex; flex-direction: column; }
.supply-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 13px;
}
.supply-row:last-child { border-bottom: none; }
.supply-row .k { color: var(--muted); }
.supply-row .v { font-weight: 700; }

/* Feature / roadmap cards */
.feature-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px 16px; box-shadow: var(--shadow); margin-bottom: 10px;
}
.feature-card .name { font-weight: 600; font-size: 14px; }
.feature-card .meta { font-size: 12px; color: var(--muted); margin-top: 4px; line-height: 1.5; }
.pill {
  display: inline-block; background: #eef3ff; color: var(--accent);
  font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 999px;
  vertical-align: middle; margin-left: 6px;
}
.pill.live { background: var(--green-bg, #e8f8ef); color: var(--green, #16a34a); }

/* Deltix DAO */
.proposal {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px 16px; box-shadow: var(--shadow); margin-bottom: 10px;
}
.proposal .p-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.proposal .p-title { font-weight: 700; font-size: 14px; }
.proposal .p-desc { font-size: 12px; color: var(--muted); margin: 6px 0 10px; line-height: 1.5; }
.proposal .p-meta { font-size: 11px; color: var(--muted); margin-top: 8px; }
.votebar { display: flex; height: 8px; border-radius: 999px; overflow: hidden; background: #eef1f7; margin: 8px 0 4px; }
.votebar .for { background: var(--green, #16a34a); }
.votebar .against { background: var(--danger, #dc2626); }
.vote-actions { display: flex; gap: 8px; margin-top: 10px; }
.vote-actions .mini-btn.against { background: #fef2f2; color: var(--danger, #dc2626); border-color: #fecaca; }
.status-pill.passed { background: var(--green-bg, #e8f8ef); color: var(--green, #16a34a); }
.status-pill.rejected { background: #fef2f2; color: var(--danger, #dc2626); }
.status-pill.voting { background: #eef3ff; color: var(--accent); }

/* Deltix Chain blocks */
.block-card {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 12px 14px; box-shadow: var(--shadow); margin-bottom: 8px;
}
.block-card .name { font-weight: 700; font-size: 13px; }
.block-card .hash { font-family: ui-monospace, Consolas, monospace; font-size: 11px; color: var(--muted); font-weight: 400; margin-left: 6px; }
.block-card .meta { font-size: 11px; color: var(--muted); margin-top: 2px; }

/* Tx list */
.tx-list { display: flex; flex-direction: column; gap: 8px; }
.tx {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px;
  box-shadow: var(--shadow);
}
.tx .type { font-weight: 600; text-transform: capitalize; font-size: 14px; }
.tx .date { font-size: 11px; color: var(--muted); }
.tx .amt { font-weight: 700; }
.tx .amt.plus { color: var(--green); }
.tx .amt.minus { color: var(--danger); }

/* Validators */
.validator-list, #myStakes { display: flex; flex-direction: column; gap: 10px; }
.validator, .stake-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px 16px; display: flex; justify-content: space-between; align-items: center;
  box-shadow: var(--shadow);
}
.validator .name, .stake-card .name { font-weight: 600; font-size: 15px; }
.validator .meta, .stake-card .meta { font-size: 12px; color: var(--muted); margin-top: 3px; }
.apy-badge { background: var(--green-bg); color: var(--green); padding: 4px 8px; border-radius: 8px; font-size: 12px; font-weight: 700; }
.mini-btn { padding: 8px 14px; border-radius: 10px; border: none; background: var(--accent); color: #fff; font-weight: 600; font-size: 13px; cursor: pointer; }
.mini-btn.ghost { background: #eef1f7; color: var(--text); }
.stake-actions { display: flex; gap: 6px; }

/* Risk disclosure list */
.disclosure {
  list-style: none; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 12px 14px; font-size: 12px; color: var(--muted);
  display: flex; flex-direction: column; gap: 6px;
}
.disclosure li::before { content: "· "; color: var(--accent); font-weight: 700; }

/* Referral / ambassador */
.ambassador-card {
  background: linear-gradient(135deg, #f2f6ff 0%, #f6f1ff 100%);
  border: 1px solid #dbe4fb; border-radius: 16px; padding: 18px;
  display: flex; flex-direction: column; gap: 10px; box-shadow: var(--shadow);
  margin-bottom: 10px;
}
.tier-badge {
  align-self: flex-start; background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 700; font-size: 14px; padding: 6px 14px; border-radius: 999px;
}
.ambassador-card .meta { font-size: 12px; color: var(--muted); line-height: 1.5; }
.progress { display: flex; flex-direction: column; gap: 8px; }
.progress-row { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--muted); }
.progress-row .bar {
  flex: 1; height: 8px; background: #e3e9f4; border-radius: 999px; overflow: hidden;
}
.progress-row .bar i {
  display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
}
.ref-code {
  font-family: monospace; font-size: 22px; font-weight: 700; letter-spacing: 2px;
  text-align: center; color: var(--accent); background: #eef3ff;
  border: 1px dashed #b9ccf5; border-radius: 12px; padding: 14px; cursor: pointer;
}
.slots { display: flex; gap: 8px; justify-content: center; }
.slot {
  width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center;
  border: 2px dashed #c7d0e0; color: #c7d0e0; font-size: 15px; font-weight: 700;
}
.slot.used { border: 2px solid var(--green); color: #fff; background: var(--green); }
.ref-item {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 12px 14px; display: flex; justify-content: space-between; align-items: center;
  box-shadow: var(--shadow); margin-bottom: 8px;
}
.ref-item .who { font-weight: 600; font-size: 13px; font-family: monospace; }
.ref-item .status { font-size: 11px; color: var(--muted); margin-top: 3px; }
.status-pill { font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.status-pill.activated { background: var(--green-bg); color: var(--green); }
.status-pill.waiting { background: #fef3e2; color: #b45309; }
.status-pill.pending { background: #eef1f7; color: var(--muted); }

/* D-Browser */
.dapp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.dapp {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 18px 8px; text-align: center; text-decoration: none; color: var(--text);
  font-size: 13px; display: flex; flex-direction: column; gap: 8px; align-items: center;
  box-shadow: var(--shadow); cursor: pointer;
}
.dapp span { font-size: 26px; }
.ad-slot {
  margin-top: 20px; padding: 24px; text-align: center; color: var(--muted); font-size: 12px;
  border: 1px dashed #c7d0e0; border-radius: 14px; background: var(--panel-2);
}

/* Tabs */
.tab { display: none; }
.tab.active { display: block; }

/* Tabbar */
.tabbar {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 440px; display: flex; justify-content: space-around;
  background: rgba(255,255,255,.94); backdrop-filter: blur(12px);
  border-top: 1px solid var(--border); padding: 10px 0 14px;
}
.tabbtn {
  background: none; border: none; color: var(--muted); font-size: 11px;
  display: flex; flex-direction: column; align-items: center; gap: 4px; cursor: pointer;
}
.tabbtn span { font-size: 20px; }
.tabbtn.active { color: var(--accent); }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(16, 24, 40, .45); display: grid; place-items: center;
  z-index: 20; padding: 20px;
}
.modal {
  width: 100%; max-width: 380px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 18px; padding: 22px; display: flex; flex-direction: column; gap: 12px;
  box-shadow: 0 20px 50px rgba(16, 24, 40, .2);
}
.modal-actions { display: flex; gap: 10px; }
.modal .url {
  font-family: monospace; font-size: 12px; background: var(--panel-2);
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; word-break: break-all;
}

/* Toast */
.toast {
  position: fixed; bottom: 90px; left: 50%; transform: translateX(-50%);
  background: #101828; color: #fff; padding: 12px 18px; border-radius: 12px;
  font-size: 14px; z-index: 40; box-shadow: 0 8px 24px rgba(16, 24, 40, .3); max-width: 90%;
}

/* -- Deltix Arcade ----------------------------------------- */
.games-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 14px 0; }
.game-card {
  display: flex; flex-direction: column; align-items: flex-start; gap: 4px;
  padding: 14px; border-radius: 16px; border: 1px solid var(--border, #e6eaf2);
  background: #fff; cursor: pointer; text-align: left;
  transition: transform .12s ease, box-shadow .12s ease;
}
.game-card:active { transform: scale(.97); }
.game-card .g-icon { font-size: 26px; color: var(--accent); }
.game-card .g-name { font-weight: 700; font-size: 14px; color: var(--ink, #0f172a); }
.game-card .g-tag { font-size: 12px; color: var(--muted, #64748b); }

.game-modal { max-width: 420px; width: 100%; }
.game-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.game-head h3 { margin: 0; }
.btn.small { padding: 6px 12px; font-size: 13px; width: auto; }
.diff-row { display: flex; gap: 10px; margin: 12px 0; }
.diff-btn { flex: 1; }
.diff-btn.active { border-color: var(--accent); color: var(--accent); background: #eef3ff; font-weight: 700; }
.game-status { text-align: center; font-size: 13px; font-weight: 600; color: var(--accent); min-height: 20px; margin-bottom: 10px; }

.board { display: grid; gap: 4px; margin: 0 auto 12px; max-width: 340px; }
.board .cell {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border, #e6eaf2); border-radius: 8px; background: #f8faff;
  font-weight: 700; cursor: pointer; user-select: none; padding: 0; min-width: 0;
}
.board.ttt .cell { font-size: 30px; color: #64748b; }
.board.ttt .cell.p1 { color: var(--accent); }
.board.memory .cell { font-size: 22px; color: var(--accent); }
.board.memory .cell.face-down { background: linear-gradient(135deg, #eef3ff, #e3ebff); }
.board.memory .cell.done { background: var(--green-bg, #e8f8ef); color: var(--green, #16a34a); border-color: transparent; }
.board.merge .cell { font-size: 16px; background: #f1f5f9; }
.board.merge .cell[data-v="0"], .board.merge .cell[data-v=""] { background: #f1f5f9; }
.board.merge .cell[data-v="2"], .board.merge .cell[data-v="4"] { background: #eef3ff; color: #334155; }
.board.merge .cell[data-v="8"], .board.merge .cell[data-v="16"] { background: #dbe7ff; color: var(--accent); }
.board.merge .cell[data-v="32"], .board.merge .cell[data-v="64"] { background: #b9ccf5; color: #123c9e; }
.board.merge .cell[data-v="128"], .board.merge .cell[data-v="256"] { background: var(--accent); color: #fff; }
.board.merge .cell[data-v="512"], .board.merge .cell[data-v="1024"], .board.merge .cell[data-v="2048"], .board.merge .cell[data-v="max"] { background: var(--accent-2); color: #fff; }
.board.sudoku { gap: 1px; max-width: 330px; }
.board.sudoku .cell { border-radius: 3px; font-size: 14px; }
.board.sudoku .cell.given { background: #eef3ff; color: #334155; cursor: default; }
.board.sudoku .cell.sel { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(47,107,255,.25); }
.board.sudoku .cell.bx { margin-right: 3px; }
.board.sudoku .cell.by { margin-bottom: 3px; }
.numpad { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; max-width: 330px; margin: 0 auto 10px; }
.numpad button { padding: 10px 0; border-radius: 8px; border: 1px solid var(--border, #e6eaf2); background: #fff; font-weight: 700; cursor: pointer; }
.numpad button:active { background: #eef3ff; }
.board.mines .cell { font-size: 13px; background: #e3ebff; }
.board.mines .cell.open { background: #f8faff; }
.board.mines .cell.boom { background: #fee2e2; color: #dc2626; }
.board.mines .cell[data-n="1"] { color: var(--accent); }
.board.mines .cell[data-n="2"] { color: var(--green, #16a34a); }
.board.mines .cell[data-n="3"] { color: #dc2626; }
.board.slide .cell { font-size: 20px; background: #eef3ff; color: var(--accent); }
.board.slide .cell.blank { background: transparent; border-color: transparent; cursor: default; }
.board.reversi { gap: 2px; max-width: 330px; }
.board.reversi .cell { background: #e8f8ef; border-color: #cde9d8; border-radius: 4px; }
.board.reversi .cell.hint { background: #d3f1e0; }
.disc { width: 70%; height: 70%; border-radius: 50%; display: block; }
.disc.you { background: var(--accent); }
.disc.ai { background: #fff; border: 2px solid #94a3b8; }
.board.recall { max-width: 260px; gap: 10px; }
.board.recall .pad { background: var(--pad); opacity: .35; border: none; border-radius: 14px; transition: opacity .1s; }
.board.recall .pad.lit { opacity: 1; box-shadow: 0 0 18px var(--pad); }
.board.reaction .cell { background: #f1f5f9; }
.board.reaction .cell.lit { background: var(--accent); box-shadow: 0 0 12px rgba(47,107,255,.5); }
.board.reaction .cell.lit::after { content: "\25c6"; color: #fff; font-size: 20px; }
.game-canvas { display: block; margin: 0 auto 12px; border-radius: 12px; border: 1px solid var(--border, #e6eaf2); max-width: 100%; }
.dpad { display: flex; flex-direction: column; align-items: center; gap: 4px; margin: 4px auto 8px; }
.dpad button { width: 52px; height: 40px; border-radius: 10px; border: 1px solid var(--border, #e6eaf2); background: #fff; font-size: 15px; color: var(--accent); cursor: pointer; }
.dpad button:active { background: #eef3ff; }
.dpad-mid { display: flex; gap: 60px; }

/* -- Forced update gate ------------------------------------ */
.update-gate {
  position: fixed; inset: 0; z-index: 1000; background: #fff;
  display: flex; align-items: center; justify-content: center; text-align: center; padding: 24px;
}
.update-card h2 { margin: 14px 0 8px; }
.update-card p { color: var(--muted, #64748b); font-size: 14px; line-height: 1.6; margin-bottom: 18px; }