/* ── Reset & tokens ───────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box; margin: 0; padding: 0;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --bg:        #0a1628;
  --surface:   #121e33;
  --surface2:  #1a2a44;
  --cyan:      #00e5cc;
  --cyan-dim:  rgba(0,229,204,0.15);
  --text:      #e8edf5;
  --muted:     rgba(232,237,245,0.5);
  --muted-dim: rgba(232,237,245,0.25);
  --border:    rgba(232,237,245,0.08);
  --border-h:  rgba(232,237,245,0.16);
  --danger:    #f87171;
  --success:   #4ade80;
  --amber:     #f59e0b;
  --indigo:    #818cf8;
  --emerald:   #34d399;
}

html, body {
  height: 100%;
  background: var(--bg);
  overscroll-behavior: none;
}
body {
  font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
  color: var(--text);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100dvh;
  -webkit-user-select: none;
  user-select: none;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* ── Page shell ───────────────────────────────────────────────────────────── */
.pf-page {
  width: 100%;
  max-width: 520px;
  padding: 12px 16px env(safe-area-inset-bottom, 16px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  flex: 1;
}

.pf-top-bar {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
}

.pf-back-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.85rem;
  padding: 6px 0;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color 0.15s;
}
.pf-back-btn:hover { color: var(--text); }
.pf-back-btn:active { opacity: 0.7; }

/* ── Screen visibility ────────────────────────────────────────────────────── */
.pf-screen { display: none; width: 100%; flex-direction: column; align-items: center; gap: 16px; }
.pf-screen.active { display: flex; }

/* Play screen uses tighter gap to give board more room */
#screen-play.active { gap: 10px; }

/* ── Pack screen ──────────────────────────────────────────────────────────── */
.pf-header { text-align: center; padding: 8px 0 4px; }
.pf-logo   { font-size: 2rem; line-height: 1; }
.pf-title  { font-size: 1.55rem; font-weight: 800; letter-spacing: -0.5px; margin-top: 4px; }
.pf-sub    { font-size: 0.82rem; color: var(--muted); margin-top: 3px; }

.pf-seed-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
}

/* ── Seed card ────────────────────────────────────────────────────────────── */
.pf-seed-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.1s;
  position: relative;
  overflow: hidden;
  min-height: 130px;
}
.pf-seed-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, var(--family-color-dim, var(--cyan-dim)) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}
.pf-seed-card:hover { border-color: var(--family-color, var(--cyan)); transform: translateY(-2px); }
.pf-seed-card:hover::before { opacity: 1; }
.pf-seed-card:hover { box-shadow: 0 4px 20px var(--family-color-dim, var(--cyan-dim)); }
.pf-seed-card:active { transform: scale(0.97); }

.pf-seed-family {
  display: flex;
  align-items: center;
  gap: 5px;
}
.pf-family-badge {
  font-size: 0.9rem;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--family-color-dim, var(--cyan-dim));
  color: var(--family-color, var(--cyan));
  font-weight: 700;
  flex-shrink: 0;
}
.pf-family-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--family-color, var(--cyan));
}
.pf-seed-name {
  font-size: 0.95rem;
  font-weight: 800;
  line-height: 1.2;
}
.pf-seed-hook {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.4;
  flex: 1;
}
.pf-seed-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.pf-tag {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--surface2);
  color: var(--muted);
  border: 1px solid var(--border);
}

.pf-pack-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 4px 0 8px;
  width: 100%;
}
.pf-refresh-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  padding: 8px 16px;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.15s, border-color 0.15s;
}
.pf-refresh-btn:hover { color: var(--text); border-color: var(--border-h); }
.pf-refresh-btn:active { opacity: 0.8; }

/* ── Detail screen ────────────────────────────────────────────────────────── */
.pf-detail-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pf-detail-family {
  display: flex;
  align-items: center;
  gap: 7px;
}
.pf-detail-badge {
  font-size: 1.1rem;
  width: 30px; height: 30px;
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  background: var(--family-color-dim, var(--cyan-dim));
  color: var(--family-color, var(--cyan));
  font-weight: 700;
}
.pf-detail-family-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--family-color, var(--cyan));
}
.pf-detail-name {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.3px;
}
.pf-detail-hook {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.5;
}
.pf-detail-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pf-difficulty-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pf-difficulty-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.pf-difficulty-btns {
  display: flex;
  gap: 8px;
}
.pf-diff-btn {
  flex: 1;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
  transition: all 0.15s;
}
.pf-diff-btn:hover { border-color: var(--border-h); color: var(--text); }
.pf-diff-btn.active {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #0a1628;
}

.pf-play-btn {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: none;
  background: var(--cyan);
  color: #0a1628;
  font-size: 1rem;
  font-weight: 800;
  transition: opacity 0.15s;
  margin-top: 4px;
}
.pf-play-btn:hover { opacity: 0.9; }
.pf-play-btn:active { opacity: 0.75; }

/* ── Play screen ──────────────────────────────────────────────────────────── */
.pf-play-header {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.pf-play-title {
  font-size: 1.1rem;
  font-weight: 800;
}
.pf-play-family-line {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.pf-play-board {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding-top: 4px;
}

/* ── Target Forge play styles ─────────────────────────────────────────────── */
.tf-target-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.tf-target {
  font-size: 1rem;
  color: var(--muted);
}
.tf-target-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--amber);
  display: block;
  text-align: center;
}
.tf-checkpoint {
  font-size: 0.78rem;
  color: var(--muted);
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface2);
}
.tf-checkpoint.hit {
  color: var(--success);
  border-color: rgba(74,222,128,0.3);
  background: rgba(74,222,128,0.08);
}
.tf-instruction {
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
  padding: 0 8px;
}
.tf-tiles {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.tf-tile {
  width: 58px; height: 58px;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1.4rem;
  font-weight: 800;
  transition: all 0.12s;
  display: flex; align-items: center; justify-content: center;
}
.tf-tile:hover { border-color: var(--border-h); background: var(--surface2); }
.tf-tile.selected {
  border-color: var(--cyan);
  background: var(--cyan-dim);
  color: var(--cyan);
}
.tf-tile.anchor::after {
  content: '★';
  position: absolute;
  font-size: 0.55rem;
  top: 3px; right: 4px;
  color: var(--amber);
}
.tf-tile { position: relative; }

.tf-ops {
  display: flex;
  gap: 8px;
  justify-content: center;
}
.tf-op {
  width: 50px; height: 50px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1.3rem;
  font-weight: 700;
  transition: all 0.12s;
}
.tf-op:hover { border-color: var(--border-h); background: var(--surface2); }
.tf-op.selected {
  border-color: var(--cyan);
  background: var(--cyan-dim);
  color: var(--cyan);
}
.tf-op.used { opacity: 0.3; cursor: not-allowed; }

.tf-ctrl-row {
  display: flex;
  gap: 8px;
  justify-content: center;
  min-height: 36px;
}
.tf-ctrl-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  padding: 6px 12px;
  font-size: 0.82rem;
  transition: all 0.12s;
}
.tf-ctrl-btn:hover { color: var(--text); border-color: var(--border-h); }

.tf-msg {
  font-size: 0.8rem;
  color: var(--danger);
  text-align: center;
  padding: 4px;
  animation: pf-fadein 0.15s ease;
}

/* ── Order Repair play styles ─────────────────────────────────────────────── */
.or-goal-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.or-goal-label, .or-live-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.or-row {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}
.or-tile {
  width: 50px; height: 50px;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1.2rem;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.12s;
}
.or-tile.goal-tile {
  opacity: 0.35;
  cursor: default;
}
.or-tile.live-tile { cursor: pointer; }
.or-tile.live-tile:hover { border-color: var(--border-h); background: var(--surface2); }
.or-tile.selected {
  border-color: var(--indigo);
  background: rgba(129,140,248,0.15);
  color: var(--indigo);
}
.or-tile.correct {
  border-color: rgba(74,222,128,0.4);
  color: var(--success);
}
.or-tile.anchored {
  border-color: var(--amber);
  color: var(--amber);
  cursor: not-allowed;
}
.or-tile.anchored::after {
  content: '★';
  font-size: 0.5rem;
  position: absolute;
  top: 2px; right: 3px;
  color: var(--amber);
}
.or-tile.live-tile { position: relative; }
.or-instruction {
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
  padding: 0 8px;
}
.or-mirror-note {
  font-size: 0.72rem;
  color: var(--muted-dim);
  text-align: center;
}
.or-msg {
  font-size: 0.8rem;
  color: var(--danger);
  text-align: center;
  animation: pf-fadein 0.15s ease;
}

/* ── Path Trace play styles ───────────────────────────────────────────────── */
.pt-instruction {
  font-size: 0.82rem;
  color: var(--muted);
  text-align: center;
  padding: 0 8px;
}
.pt-steps-info {
  font-size: 0.82rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.pt-steps-info.over-budget { color: var(--danger); }

.pt-grid {
  display: grid;
  grid-template-columns: repeat(var(--pt-cols), 1fr);
  gap: 6px;
  width: 100%;
  max-width: 340px;
}
.pt-cell {
  aspect-ratio: 1;
  border-radius: 10px;
  border: 2px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.1s;
  position: relative;
}
.pt-cell--wall {
  background: var(--surface2);
  border-color: transparent;
  cursor: not-allowed;
}
.pt-cell--start {
  border-color: var(--emerald);
  color: var(--emerald);
  font-weight: 900;
}
.pt-cell--end {
  border-color: var(--cyan);
  color: var(--cyan);
  font-weight: 900;
}
.pt-cell--key { color: var(--amber); }
.pt-cell--mark { color: var(--indigo); }

/* Path coloring */
.pt-cell[data-color="1"] { background: rgba(248,113,113,0.18); border-color: rgba(248,113,113,0.4); color: #f87171; }
.pt-cell[data-color="2"] { background: rgba(96,165,250,0.18); border-color: rgba(96,165,250,0.4); color: #60a5fa; }
.pt-cell[data-color="3"] { background: rgba(52,211,153,0.18); border-color: rgba(52,211,153,0.4); color: #34d399; }
.pt-cell[data-color="4"] { background: rgba(250,204,21,0.18); border-color: rgba(250,204,21,0.4); color: #facc15; }

.pt-cell.in-path { background: var(--surface2); border-color: var(--emerald); }
.pt-cell.current { background: rgba(52,211,153,0.2); border-color: var(--emerald); }
.pt-cell:not(.pt-cell--wall):hover { border-color: var(--border-h); cursor: pointer; }

.pt-back-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  padding: 7px 14px;
  font-size: 0.82rem;
  transition: all 0.12s;
}
.pt-back-btn:hover { color: var(--text); border-color: var(--border-h); }
.pt-msg {
  font-size: 0.8rem;
  color: var(--danger);
  text-align: center;
  animation: pf-fadein 0.15s ease;
}

/* ── Result screen ────────────────────────────────────────────────────────── */
.pf-result-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 20px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.pf-result-box--solved {
  border-color: rgba(74,222,128,0.35);
  box-shadow: 0 0 32px rgba(74,222,128,0.10);
}
.pf-result-box--failed {
  border-color: rgba(248,113,113,0.25);
}

.pf-result-icon {
  font-size: 2.6rem;
  width: 64px; height: 64px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900;
}
.pf-result-icon--solved {
  color: var(--success);
  background: rgba(74,222,128,0.12);
  animation: pf-pop 0.35s cubic-bezier(0.34,1.56,0.64,1) both;
}
.pf-result-icon--failed {
  color: var(--danger);
  background: rgba(248,113,113,0.10);
  animation: pf-fadein 0.2s ease both;
}

.pf-result-title { font-size: 1.3rem; font-weight: 800; }
.pf-result-sub { font-size: 0.82rem; color: var(--muted); line-height: 1.5; }

.pf-result-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.pf-result-btn {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  transition: all 0.12s;
}
.pf-result-btn:hover { border-color: var(--border-h); background: var(--surface2); }
.pf-result-btn.primary {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #0a1628;
}
.pf-result-btn.primary:hover { opacity: 0.9; }
.pf-result-btn[hidden] { display: none; }

/* ── Footer ───────────────────────────────────────────────────────────────── */
.pf-footer {
  margin-top: auto;
  color: var(--muted-dim);
  font-size: 0.72rem;
  text-align: center;
  padding: 12px 0 4px;
}

/* ── Animations ───────────────────────────────────────────────────────────── */
@keyframes pf-fadein {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pf-pop {
  0%   { transform: scale(0.5); opacity: 0; }
  80%  { transform: scale(1.1); }
  100% { transform: scale(1);   opacity: 1; }
}
@keyframes pf-card-enter {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.pf-screen.active { animation: pf-fadein 0.18s ease; }

.pf-card-enter {
  animation: pf-card-enter 0.22s ease both;
}