/* Display page (`/`) — lobby, home menu, settings, tutorials, game stage. */

.display { overflow: hidden; }

.screen {
  position: fixed;
  inset: 0;
  display: none;
  flex-direction: column;
  padding: clamp(18px, 3vw, 40px);
}
.screen.is-active { display: flex; }

/* ───────────── top bar ───────────── */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex: 0 0 auto;
  margin-bottom: clamp(16px, 2.4vw, 32px);
}
.topbar-mark { font-size: clamp(1rem, 1.5vw, 1.25rem); }
.topbar-right { display: flex; align-items: center; gap: 10px; }

/* ───────────── landing ───────────── */

.landing {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(28px, 4vh, 48px);
  text-align: center;
}
.landing-mark { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.landing-wordmark { font-size: clamp(2.6rem, 8.5vw, 6.5rem); line-height: 1; }
.landing-tag {
  margin: 0;
  color: var(--ink-dim);
  font-size: clamp(0.95rem, 1.7vw, 1.3rem);
  letter-spacing: 0.06em;
}
.landing-start { animation-delay: 0.1s; }

.landing-steps {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(14px, 3vw, 42px);
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--ink-faint);
  font-size: 0.9rem;
  animation-delay: 0.2s;
}
.landing-steps li { display: flex; align-items: center; gap: 10px; }
.step-n {
  display: grid;
  place-items: center;
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--accent);
}
.landing-note { margin: 0; min-height: 1.2em; color: var(--danger); font-size: 0.9rem; }

/* ───────────── lobby ───────────── */

.lobby {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.85fr);
  gap: clamp(16px, 2vw, 28px);
  min-height: 0;
}
@media (max-width: 900px) {
  .lobby { grid-template-columns: 1fr; overflow: auto; }
}

.panel-title {
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  padding: clamp(16px, 2vw, 24px) clamp(18px, 2.2vw, 28px);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.players-count { color: var(--ink-faint); font-size: 0.85em; }

.join-panel, .players-panel { display: flex; flex-direction: column; min-height: 0; }

.join-grid {
  flex: 1;
  display: grid;
  grid-template-columns: auto auto;
  justify-content: center;
  gap: clamp(24px, 4vw, 58px);
  align-items: center;
  padding: clamp(20px, 2.6vw, 36px);
}
@media (max-width: 700px) {
  .join-grid { grid-template-columns: 1fr; justify-items: center; text-align: center; }
}

.join-qr { display: flex; flex-direction: column; align-items: center; gap: 12px; }
/* Always white — a QR needs the light quiet zone to scan in either theme. */
.qr-frame {
  padding: 14px;
  border-radius: var(--r);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 0 42px -10px color-mix(in srgb, var(--accent) 50%, transparent);
  line-height: 0;
}
#qr-canvas { width: clamp(160px, 19vw, 288px); height: auto; display: block; }
.join-caption { margin: 0; color: var(--ink-faint); font-size: 0.86rem; }
.join-caption strong { color: var(--ink-dim); font-weight: 500; }

.join-alt { display: flex; flex-direction: column; gap: clamp(18px, 2.5vw, 30px); }
.join-block { display: flex; flex-direction: column; gap: 8px; }

.room-code {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 5.2vw, 5rem);
  line-height: 1;
  letter-spacing: 0.16em;
  color: var(--ink);
  text-shadow: 0 0 34px color-mix(in srgb, var(--accent) 45%, transparent);
  white-space: nowrap;
  /* The trailing letter-space would otherwise push the last glyph off-centre. */
  margin-right: -0.16em;
}

.copy-btn { align-self: flex-start; }
.copy-btn.copied { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }

/* slots */

.slot-list {
  list-style: none;
  margin: 0;
  padding: clamp(14px, 1.8vw, 20px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  flex: 1;
  min-height: 0;
}

.slot {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: var(--tint);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}
.slot.is-empty { border-style: dashed; opacity: 0.55; }
.slot.is-filled {
  background: linear-gradient(90deg, color-mix(in srgb, var(--pc) 14%, transparent), var(--tint));
  border-color: color-mix(in srgb, var(--pc) 45%, transparent);
}
.slot.just-joined { animation: pm-rise 0.4s var(--ease) both; }

.slot-orb {
  width: 34px; height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--bg);
  background: var(--sunken-a);
  border: 1px solid var(--line);
  flex: 0 0 auto;
}
.slot.is-filled .slot-orb {
  background: var(--pc);
  border-color: transparent;
  box-shadow: 0 0 18px -2px var(--pc);
}
.slot.is-empty .slot-orb { color: var(--ink-faint); background: transparent; }

.slot-body { flex: 1; min-width: 0; }
.slot-name {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.12em;
  font-size: 0.9rem;
}
.slot-state { font-size: 0.78rem; color: var(--ink-faint); }

.host-badge {
  font-family: var(--font-display);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  padding: 0.32em 0.7em;
  border-radius: var(--r-pill);
  color: var(--bg);
  background: var(--amber);
  box-shadow: 0 0 16px -3px var(--amber);
}

.signal { display: flex; align-items: flex-end; gap: 2px; height: 14px; }
.signal i {
  display: block;
  width: 3px;
  background: var(--ink-faint);
  border-radius: 1px;
  opacity: 0.3;
  transition: opacity 0.3s, background 0.3s;
}
.signal i:nth-child(1) { height: 5px; }
.signal i:nth-child(2) { height: 9px; }
.signal i:nth-child(3) { height: 14px; }
.signal i.lit { opacity: 1; background: var(--pc, var(--ok)); }

.lobby-cta {
  padding: clamp(14px, 1.8vw, 20px);
  border-top: 1px solid var(--line);
  text-align: center;
  min-height: 76px;
  display: grid;
  place-items: center;
}
.lobby-hint { margin: 0; color: var(--ink-faint); font-size: 0.88rem; }
.lobby-hint strong { color: var(--ink); font-weight: 600; }

/* ───────────── home menu ───────────── */

.menu {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: clamp(16px, 2.6vh, 30px);
  min-height: 0;
}
.menu-eyebrow { text-align: center; }

.game-rack {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 1.8vw, 26px);
  align-items: stretch;
}
@media (max-width: 820px) { .game-rack { grid-template-columns: 1fr; } }

.game-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(18px, 2.4vw, 30px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel-a), var(--panel-b));
  box-shadow: var(--shadow-lift), inset 0 1px 0 var(--line-hi);
  transition: transform 0.32s var(--ease), border-color 0.32s, box-shadow 0.32s, opacity 0.32s;
  overflow: hidden;
}
/* Accent wash that only blooms on the active card. */
.game-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 80% at 50% 0%, color-mix(in srgb, var(--gc) 22%, transparent), transparent 70%);
  opacity: 0;
  transition: opacity 0.32s var(--ease);
  pointer-events: none;
}
.game-card.is-selected, .game-card.is-hover {
  transform: translateY(-8px);
  border-color: color-mix(in srgb, var(--gc) 65%, transparent);
  box-shadow: var(--shadow-lift), 0 0 46px -10px var(--gc), inset 0 1px 0 var(--line-hi);
}
.game-card.is-selected::after, .game-card.is-hover::after { opacity: 1; }
.game-card.is-locked { opacity: 0.38; filter: saturate(0.25); }

.game-icon {
  width: clamp(44px, 4.6vw, 64px);
  height: clamp(44px, 4.6vw, 64px);
  color: var(--gc);
}
.game-icon svg { width: 100%; height: 100%; display: block; }

.game-name {
  font-size: clamp(1.1rem, 1.8vw, 1.6rem);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.game-desc { margin: 0; color: var(--ink-dim); font-size: 0.86rem; line-height: 1.5; }

.game-lock {
  position: absolute;
  inset: auto 0 0 0;
  padding: 10px 14px;
  background: color-mix(in srgb, var(--danger) 14%, transparent);
  border-top: 1px solid color-mix(in srgb, var(--danger) 32%, transparent);
  color: var(--danger);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-align: center;
}

.mode-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: auto;
  padding-top: 6px;
}
.mode-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0.7em 1em;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--tint);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.22s var(--ease);
}
.mode-row .mode-sub {
  font-family: var(--font-ui);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  font-size: 0.74rem;
  color: var(--ink-faint);
}
.mode-row.is-selected, .mode-row.is-hover {
  border-color: var(--gc);
  background: color-mix(in srgb, var(--gc) 16%, transparent);
  box-shadow: 0 0 22px -8px var(--gc);
}
.mode-row.is-disabled { opacity: 0.35; }

/* Motion navigation walks a vertical list, so the rack becomes one. */
.game-rack.is-list { grid-template-columns: 1fr; gap: 10px; }
.game-rack.is-list .game-card {
  flex-direction: row;
  align-items: center;
  gap: clamp(14px, 2vw, 26px);
  padding: clamp(11px, 1.5vw, 18px) clamp(16px, 2vw, 26px);
}
.game-rack.is-list .game-icon { width: clamp(34px, 3vw, 44px); height: clamp(34px, 3vw, 44px); flex: 0 0 auto; }
.game-rack.is-list .game-copy { flex: 1 1 auto; min-width: 0; }
.game-rack.is-list .game-name { font-size: clamp(0.95rem, 1.4vw, 1.25rem); }
.game-rack.is-list .game-desc { font-size: 0.78rem; margin-top: 2px; }
.game-rack.is-list .mode-list {
  flex-direction: row;
  margin-top: 0;
  padding-top: 0;
  flex: 0 0 auto;
}
.game-rack.is-list .mode-row {
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 1px;
  min-width: clamp(96px, 9vw, 130px);
  padding: 0.55em 0.85em;
}
.game-rack.is-list .game-card.is-selected { transform: translateX(8px); }
.game-rack.is-list .game-lock {
  position: static;
  flex: 0 0 auto;
  border-top: 0;
  border: 1px solid color-mix(in srgb, var(--danger) 32%, transparent);
  border-radius: var(--r-sm);
  padding: 8px 12px;
}
/* While a row is open, its options carry the emphasis. */
.game-card.is-open .game-copy { opacity: 0.6; }

.menu-foot { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.menu-keys { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.key-hint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--ink-faint);
}
.key-cap {
  display: grid;
  place-items: center;
  min-width: 26px;
  height: 26px;
  padding: 0 8px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--raise-a), var(--raise-b));
  box-shadow: 0 3px 0 -1px var(--raise-edge);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.76rem;
  color: var(--ink);
}
.menu-note { margin: 0; min-height: 1.2em; color: var(--amber); font-size: 0.85rem; text-align: center; }

/* Settings entry sits under the rack and is reachable the same way. */
.menu-extra { display: flex; justify-content: center; gap: 12px; }
.extra-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0.7em 1.4em;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: var(--tint);
  color: var(--ink-dim);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.extra-btn svg { width: 17px; height: 17px; }
.extra-btn.is-selected, .extra-btn.is-hover {
  color: var(--ink);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  box-shadow: 0 0 24px -10px var(--accent);
}

/* ───────────── settings ───────────── */

.settings {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: clamp(14px, 2vh, 22px);
  min-height: 0;
}
.settings-stack { width: min(760px, 100%); display: flex; flex-direction: column; gap: 14px; }

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: clamp(16px, 2vw, 24px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel-a), var(--panel-b));
  box-shadow: var(--shadow-lift), inset 0 1px 0 var(--line-hi);
}
/* Motion focus on a settings row, and on an option inside an open row. */
.setting-row.is-selected {
  border-color: var(--accent);
  box-shadow: var(--shadow-lift), 0 0 34px -12px var(--accent), inset 0 1px 0 var(--line-hi);
}
.setting-row.is-open .setting-copy { opacity: 0.62; }
.setting-row.is-open .seg {
  box-shadow: inset 0 2px 8px var(--sunken-shadow), 0 0 0 2px color-mix(in srgb, var(--accent) 45%, transparent);
}
.seg-opt.is-selected:not(.on) {
  color: var(--ink);
  border-color: color-mix(in srgb, var(--accent) 70%, transparent);
}
.tutorial-card.is-selected { box-shadow: var(--shadow-lift), 0 0 40px -14px var(--accent), inset 0 1px 0 var(--line-hi); }

.setting-copy h3 {
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.setting-copy p { margin: 0; color: var(--ink-faint); font-size: 0.84rem; line-height: 1.5; max-width: 46ch; }

.seg {
  display: inline-flex;
  padding: 5px;
  gap: 5px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--sunken-a), var(--sunken-b));
  box-shadow: inset 0 2px 8px var(--sunken-shadow);
  flex: 0 0 auto;
}
.seg-opt {
  padding: 0.65em 1.35em;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink-faint);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}
.seg-opt.is-hover { color: var(--ink); border-color: color-mix(in srgb, var(--accent) 50%, transparent); }
.seg-opt.on {
  color: var(--accent-ink);
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--accent) 60%, var(--panel-b)),
    color-mix(in srgb, var(--accent) 34%, var(--panel-b)));
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  box-shadow: var(--glow-primary);
}
:root[data-theme="light"] .seg-opt.on {
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 86%, #fff), var(--accent));
  border-color: var(--accent);
}

/* ───────────── tutorial overlay ───────────── */

.tutorial {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: grid;
  place-items: center;
  padding: clamp(18px, 4vw, 48px);
  background: var(--overlay);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}
.tutorial[hidden] { display: none; }

.tutorial-card {
  width: min(720px, 100%);
  padding: clamp(24px, 3.4vw, 44px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel-a), var(--panel-b));
  box-shadow: var(--shadow-lift), inset 0 1px 0 var(--line-hi);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(14px, 2vh, 22px);
  text-align: center;
  animation: pm-pop 0.4s var(--ease) both;
}
.tut-title { font-size: clamp(1.3rem, 2.5vw, 2rem); letter-spacing: 0.06em; text-transform: uppercase; }
.tut-lead { margin: 0; color: var(--ink-dim); font-size: 0.95rem; max-width: 52ch; line-height: 1.6; }

.tut-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  width: 100%;
}
.tut-step {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: var(--tint);
  text-align: left;
}
.tut-ico {
  width: 42px; height: 42px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
}
.tut-ico svg { width: 24px; height: 24px; }
.tut-step b { display: block; font-family: var(--font-display); letter-spacing: 0.06em; font-size: 0.9rem; }
.tut-step span { color: var(--ink-faint); font-size: 0.84rem; line-height: 1.45; }

/* ───────────── game stage ───────────── */

.screen-game { padding: 0; }
#stage { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.game-bar {
  position: absolute;
  inset: 0 0 auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: clamp(12px, 1.6vw, 22px) clamp(16px, 2.4vw, 32px);
  background: linear-gradient(180deg, var(--overlay), transparent);
  pointer-events: none;
  z-index: 5;
}
.game-bar-left { display: flex; align-items: center; gap: 12px; }
.game-title { font-size: clamp(0.95rem, 1.5vw, 1.25rem); letter-spacing: 0.14em; text-transform: uppercase; }

.game-bar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }

.score-pill {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0.45em 0.9em;
  border-radius: var(--r-pill);
  border: 1px solid color-mix(in srgb, var(--pc) 45%, transparent);
  background: color-mix(in srgb, var(--pc) 12%, var(--panel-b));
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  transition: transform 0.2s var(--ease);
}
.score-pill.bump { transform: scale(1.12); }
.score-pill .sp-slot {
  width: 20px; height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--pc);
  color: var(--bg);
  font-size: 0.72rem;
}
.score-pill .sp-value { min-width: 1.6em; text-align: right; }
.score-pill.is-locked { opacity: 0.45; }
.score-pill.is-drawer { border-color: var(--amber); box-shadow: 0 0 18px -6px var(--amber); }

.noscript-note {
  position: fixed; inset: 0;
  display: grid; place-items: center;
  padding: 24px; text-align: center;
  background: var(--bg); color: var(--ink);
}