/* =============================================================================
   pg-styles.css — playground layer on top of the Interchained design tokens.
   Reuses --bg-main / glass / glow / eyebrow / btn recipes from explainer/styles.css.
   --pg-accent is themeable via Tweaks (defaults to electric cyan).
   ============================================================================= */

:root {
  --pg-accent: #22d3ee;
  --pg-accent-soft: color-mix(in srgb, var(--pg-accent) 15%, transparent);
  --pg-accent-line: color-mix(in srgb, var(--pg-accent) 52%, transparent);
  --pg-speed: 1;            /* animation-speed multiplier from Tweaks */
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --good: #34d399;
  --bad: #f43f5e;
}

/* ---------- header ---------- */
.pg-header {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  background: rgba(5, 8, 22, 0.72);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-glass);
}
.pg-brand { display: flex; align-items: center; gap: 0.7rem; font-family: var(--font-display); font-weight: 600; }
.pg-brand img { width: 34px; height: 34px; border-radius: 50%; box-shadow: 0 0 0 1px rgba(250,204,21,0.25), 0 6px 18px -8px rgba(0,0,0,0.8); }
.pg-brand .b1 { color: var(--soft-white); }
.pg-brand .b2 { color: var(--pg-accent); }
.pg-header .spacer { flex: 1; }
.pg-stat {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--mono); font-size: 0.78rem; color: var(--muted-text);
  padding: 0.4rem 0.7rem; border-radius: var(--radius-pill);
  border: 1px solid var(--border-glass); background: rgba(148,163,184,0.05);
}
.pg-stat b { color: var(--soft-white); font-weight: 600; }
.pg-status-dot { width: 8px; height: 8px; border-radius: 50%; }
.pg-status-dot.ok { background: var(--good); box-shadow: 0 0 10px var(--good); }
.pg-status-dot.bad { background: var(--bad); box-shadow: 0 0 10px var(--bad); }

/* ---------- hero ---------- */
.pg-hero { position: relative; z-index: 1; padding: clamp(3.5rem, 9vh, 6.5rem) 0 clamp(2rem,5vh,3.5rem); }
.pg-hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem,5vw,4rem); align-items: center; }
@media (max-width: 920px) { .pg-hero-grid { grid-template-columns: 1fr; } }
.pg-hero h1 { font-size: clamp(2.6rem, 6.5vw, 5rem); letter-spacing: -0.025em; margin: 1.1rem 0; }
.pg-hero h1 .accent { color: var(--pg-accent); }
.pg-kicker { color: var(--muted-text); }
.pg-hero-ctas { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.8rem; }
.pg-hero-meta { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.6rem; }

/* hero block-anatomy card */
.anat { padding: 1.4rem; }
.anat-block {
  border: 1px solid var(--pg-accent-line); border-radius: 16px; overflow: hidden;
  background: linear-gradient(160deg, rgba(34,211,238,0.06), rgba(14,20,48,0.4));
}
.anat-row { display: flex; justify-content: space-between; gap: 1rem; padding: 0.7rem 1rem; border-bottom: 1px solid var(--border-glass); }
.anat-row:last-child { border-bottom: 0; }
.anat-row .k { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-text); }
.anat-row .v { font-family: var(--mono); font-size: 0.82rem; color: var(--soft-white); text-align: right; word-break: break-all; }
.anat-row .v.hash { color: var(--pg-accent); }
.anat-hint { font-size: 0.8rem; color: var(--muted-text); margin-top: 0.5rem; }
.anat-row.live .v.hash { animation: hashflick calc(0.9s / var(--pg-speed)) steps(1) infinite; }
@keyframes hashflick { 50% { opacity: 0.45; } }

/* ---------- concept beats ---------- */
.beats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
@media (max-width: 820px) { .beats { grid-template-columns: 1fr; } }
.beat { padding: 1.5rem; }
.beat .num { font-family: var(--mono); font-size: 0.8rem; color: var(--pg-accent); }
.beat h3 { font-size: 1.25rem; margin: 0.6rem 0 0.5rem; }

/* ---------- the lab ---------- */
.lab { display: grid; grid-template-columns: 360px 1fr; gap: 1.25rem; align-items: start; }
@media (max-width: 1080px) { .lab { grid-template-columns: 1fr; } }
.lab-aside { display: flex; flex-direction: column; gap: 1.1rem; position: sticky; top: 76px; }
@media (max-width: 1080px) { .lab-aside { position: static; } }

.panel { padding: 1.15rem 1.2rem; }
.panel h4 { font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted-text); font-family: var(--font-display); margin-bottom: 0.9rem; display: flex; align-items: center; gap: 0.5rem; }
.panel h4 .count { margin-left: auto; font-family: var(--mono); color: var(--pg-accent); font-size: 0.8rem; letter-spacing: 0; }

/* wallets */
.wallet { display: flex; align-items: center; gap: 0.75rem; padding: 0.6rem 0; border-bottom: 1px solid var(--border-glass); }
.wallet:last-child { border-bottom: 0; }
.wallet .avatar { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-family: var(--font-display); font-weight: 600; font-size: 0.85rem; color: #051018; flex: none; }
.wallet .info { min-width: 0; flex: 1; }
.wallet .nm { font-weight: 600; font-size: 0.92rem; }
.wallet .addr { font-family: var(--mono); font-size: 0.72rem; color: var(--muted-text); }
.wallet .bal { font-family: var(--mono); font-weight: 600; text-align: right; white-space: nowrap; }
.wallet .bal small { color: var(--muted-text); font-weight: 400; }

/* transaction form */
.field { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 0.75rem; }
.field label { font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted-text); font-family: var(--font-display); }
.field select, .field input {
  width: 100%; padding: 0.6rem 0.75rem; border-radius: 12px;
  background: rgba(8,12,30,0.85); border: 1px solid var(--border-glass);
  color: var(--soft-white); font-family: var(--font-body); font-size: 0.92rem;
}
.field input { font-family: var(--mono); }
.field select:focus, .field input:focus { outline: none; border-color: var(--pg-accent-line); box-shadow: 0 0 0 3px var(--pg-accent-soft); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.form-err { color: var(--bad); font-size: 0.78rem; min-height: 1rem; }
.btn-accent {
  background: linear-gradient(180deg, color-mix(in srgb, var(--pg-accent) 90%, white), var(--pg-accent));
  color: #04121a; box-shadow: 0 12px 30px -12px var(--pg-accent); width: 100%; border: 0; font-weight: 600;
}
.btn-accent:hover { transform: translateY(-1px); }
.btn-accent:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* mempool */
.mempool-empty { font-size: 0.85rem; color: var(--muted-text); font-style: italic; }
.memtx { display: flex; align-items: center; gap: 0.55rem; padding: 0.55rem 0.65rem; border: 1px dashed var(--border-glass); border-radius: 12px; margin-bottom: 0.5rem; font-family: var(--mono); font-size: 0.8rem; }
.memtx .arrow { color: var(--pg-accent); }
.memtx .amt { margin-left: auto; font-weight: 600; }
.memtx .x { cursor: pointer; color: var(--muted-text); border: 0; background: none; padding: 0 0.2rem; }
.memtx .x:hover { color: var(--bad); }

/* ---------- mining HUD ---------- */
.mine-bar { display: flex; flex-direction: column; gap: 0.9rem; }
.mine-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.mine-title { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.mine-title .sub { color: var(--muted-text); font-weight: 400; font-size: 0.85rem; display: block; margin-top: 0.15rem; }
.hud { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.8rem; }
@media (max-width: 620px) { .hud { grid-template-columns: repeat(2, 1fr); } }
.hud .cell { padding: 0.7rem 0.85rem; border-radius: 12px; background: rgba(8,12,30,0.6); border: 1px solid var(--border-glass); }
.hud .lbl { font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted-text); }
.hud .num { font-family: var(--mono); font-size: 1.15rem; font-weight: 600; margin-top: 0.2rem; color: var(--soft-white); }
.hud .num.accent { color: var(--pg-accent); }
.hashview {
  font-family: var(--mono); font-size: 0.92rem; word-break: break-all; line-height: 1.5;
  padding: 0.8rem 0.9rem; border-radius: 12px; background: #04060f; border: 1px solid var(--border-glass);
}
.hashview .zeros { color: var(--good); font-weight: 700; }
.hashview .rest { color: var(--muted-text); }
.hashview .target { color: var(--pg-accent); }
.mining-flash { animation: minepulse calc(1.1s / var(--pg-speed)) ease-in-out infinite; }
@keyframes minepulse { 0%,100% { box-shadow: inset 0 0 0 1px var(--border-glass); } 50% { box-shadow: inset 0 0 0 1px var(--pg-accent-line), 0 0 26px -8px var(--pg-accent); } }

/* hashpower meter (idle state) */
.hp-meter { padding: 0.85rem 0.95rem; border-radius: 12px; background: rgba(8,12,30,0.6); border: 1px solid var(--border-glass); }
.hp-head { display: flex; align-items: center; justify-content: space-between; font-size: 0.85rem; color: var(--muted-text); }
.hp-head b { font-family: var(--mono); color: var(--soft-white); font-size: 1.05rem; }
.hp-bar { height: 7px; border-radius: 99px; background: rgba(148,163,184,0.12); overflow: hidden; margin: 0.6rem 0 0.7rem; }
.hp-bar span { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, color-mix(in srgb, var(--pg-accent) 60%, transparent), var(--pg-accent)); box-shadow: 0 0 14px -2px var(--pg-accent); transition: width .6s ease; }
.hp-note { font-size: 0.8rem; color: var(--muted-text); line-height: 1.5; }
.hp-note b { color: var(--soft-white); font-family: var(--mono); }

/* ---------- chain ---------- */
.chain { display: flex; flex-direction: column; gap: 0; }
.bcard { position: relative; padding: 1.1rem 1.2rem; transition: border-color .3s ease, box-shadow .3s ease; }
.bcard + .bcard { margin-top: 38px; }
.bcard::before {
  content: ""; position: absolute; left: 50%; top: -38px; height: 38px; width: 2px;
  background: linear-gradient(var(--pg-accent-line), transparent); transform: translateX(-50%);
}
.bcard:first-child::before { display: none; }
.bcard .link-badge {
  position: absolute; left: 50%; top: -30px; transform: translateX(-50%);
  font-family: var(--mono); font-size: 0.62rem; color: var(--muted-text);
  background: var(--bg-main); padding: 0 0.4rem; white-space: nowrap;
}
.bcard.invalid { border-color: rgba(244,63,94,0.55); box-shadow: 0 0 30px -12px var(--bad); }
.bcard.invalid::before { background: linear-gradient(rgba(244,63,94,0.6), transparent); }
.bcard.fresh { animation: blockin calc(0.6s / var(--pg-speed)) cubic-bezier(0.22,1,0.36,1); }
@keyframes blockin { from { opacity: 0; transform: translateY(18px) scale(0.98); } }

.bhead { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.85rem; }
.bnum { font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; }
.bnum .hash-glyph { color: var(--pg-accent); }
.btag {
  font-family: var(--mono); font-size: 0.68rem; padding: 0.25rem 0.55rem; border-radius: var(--radius-pill);
  border: 1px solid var(--border-glass); color: var(--muted-text);
}
.btag.genesis { color: var(--gold); border-color: rgba(250,204,21,0.4); }
.btag.ok { color: var(--good); border-color: rgba(52,211,153,0.4); }
.btag.bad { color: var(--bad); border-color: rgba(244,63,94,0.5); }
.bhead .when { margin-left: auto; font-family: var(--mono); font-size: 0.72rem; color: var(--muted-text); }

.btx { display: flex; align-items: center; gap: 0.5rem; font-family: var(--mono); font-size: 0.82rem; padding: 0.35rem 0; border-bottom: 1px dashed var(--border-glass); }
.btx:last-of-type { border-bottom: 0; }
.btx .who { color: var(--soft-white); }
.btx .arrow { color: var(--pg-accent); }
.btx .amt { margin-left: auto; font-weight: 600; white-space: nowrap; }
.btx.coinbase .amt { color: var(--gold); }
.btx-edit { width: 116px; padding: 0.2rem 0.4rem; border-radius: 7px; background: rgba(244,63,94,0.08); border: 1px solid rgba(244,63,94,0.4); color: #fecdd3; font-family: var(--mono); font-size: 0.8rem; }
.btx-empty { font-family: var(--mono); font-size: 0.8rem; color: var(--muted-text); padding: 0.3rem 0; }

.bmeta { display: grid; grid-template-columns: 1fr; gap: 0.4rem; margin-top: 0.85rem; padding-top: 0.85rem; border-top: 1px solid var(--border-glass); }
.bmeta .mrow { display: flex; gap: 0.7rem; align-items: baseline; }
.bmeta .mk { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-text); width: 74px; flex: none; }
.bmeta .mv { font-family: var(--mono); font-size: 0.78rem; word-break: break-all; }
.bmeta .mv.prev { color: var(--muted-text); }
.bmeta .mv.hash { color: var(--pg-accent); }
.bmeta .mv.hash.bad { color: var(--bad); }
.bmeta .mv .zeros { color: var(--good); font-weight: 700; }
.bmeta .mv.hash.bad .zeros { color: var(--bad); }

.bcard .expand { margin-top: 0.7rem; }
.btn-tiny { font-family: var(--font-display); font-size: 0.78rem; padding: 0.4rem 0.8rem; border-radius: var(--radius-pill); background: rgba(148,163,184,0.06); border: 1px solid var(--border-glass); color: var(--soft-white); display: inline-flex; align-items: center; gap: 0.4rem; }
.btn-tiny:hover { border-color: var(--pg-accent-line); }

/* invalid banner + re-mine */
.chain-alert { display: flex; align-items: center; gap: 0.9rem; padding: 0.9rem 1.1rem; border-radius: 14px; border: 1px solid rgba(244,63,94,0.45); background: rgba(244,63,94,0.07); margin-bottom: 1.1rem; }
.chain-alert .txt { flex: 1; font-size: 0.9rem; color: #fecaca; }
.chain-alert .txt b { color: #fff; }
.chain-alert .btn-remine { background: linear-gradient(180deg,#fb7185,#e11d48); color: #fff; border: 0; font-weight: 600; padding: 0.6rem 1.1rem; border-radius: var(--radius-pill); font-family: var(--font-display); white-space: nowrap; }

/* ---------- spin-up genesis ---------- */
.genesis-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: start; }
@media (max-width: 820px) { .genesis-grid { grid-template-columns: 1fr; } }
.premine { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.55rem; }
.premine .nm { flex: 1; font-weight: 600; font-size: 0.9rem; }
.premine input { width: 110px; }
.preview-coin { display: flex; align-items: center; gap: 0.85rem; padding: 0.9rem 1rem; border-radius: 14px; border: 1px solid var(--border-glass); background: rgba(8,12,30,0.5); margin-bottom: 1rem; }
.preview-coin .disc { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; color: #04121a; flex: none; }

/* ---------- closing ---------- */
.recap { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
@media (max-width: 720px) { .recap { grid-template-columns: 1fr; } }
.recap .item { display: flex; gap: 0.8rem; align-items: flex-start; }
.recap .dot { color: var(--pg-accent); flex: none; margin-top: 0.15rem; }
.pg-footer { border-top: 1px solid var(--border-glass); padding: 2.5rem 0; margin-top: 3rem; color: var(--muted-text); font-size: 0.85rem; }
.pg-footer .links { display: flex; flex-wrap: wrap; gap: 1.2rem; margin-top: 0.8rem; }
.pg-footer a:hover { color: var(--pg-accent); }

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  .anat-row.live .v.hash, .mining-flash, .bcard.fresh { animation: none !important; }
}

@keyframes pgRise { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  [style*="pgRise"] { animation: none !important; opacity: 1 !important; transform: none !important; }
}