:root {
  color-scheme: dark;
  --ink: #071c27;
  --ink-soft: #12313b;
  --paper: #f4edda;
  --paper-dim: #cfc7b4;
  --coral: #f05d4e;
  --amber: #f6c453;
  --teal: #2ab7a9;
  --sky: #71c7d4;
  --shadow: #031017;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  font-family: "Trebuchet MS", "Microsoft YaHei", "PingFang SC", sans-serif;
  touch-action: none;
}

button {
  min-width: 44px;
  min-height: 44px;
  border: 1px solid color-mix(in srgb, var(--paper) 34%, transparent);
  border-radius: 2px;
  padding: 0.78rem 1rem;
  background: color-mix(in srgb, var(--ink) 82%, transparent);
  color: var(--paper);
  font: 700 0.95rem/1 "Trebuchet MS", "Microsoft YaHei", sans-serif;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 120ms ease-out, background-color 120ms ease-out, border-color 120ms ease-out;
}

button:hover,
button:focus-visible {
  border-color: var(--paper);
  background: color-mix(in srgb, var(--paper) 12%, var(--ink));
  outline: 3px solid color-mix(in srgb, var(--amber) 78%, transparent);
  outline-offset: 3px;
}

button:active {
  transform: translate(2px, 2px);
}

.app-shell {
  position: fixed;
  inset: 0;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 18% 82%, rgba(42, 183, 169, 0.1), transparent 22%),
    radial-gradient(circle at 82% 18%, rgba(246, 196, 83, 0.08), transparent 24%),
    linear-gradient(160deg, var(--ink), #04141d 72%);
}

#game {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  image-rendering: auto;
  background: var(--ink);
}

.paper-grain {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.22;
  mix-blend-mode: soft-light;
  background-image:
    repeating-linear-gradient(8deg, transparent 0 3px, rgba(255, 255, 255, 0.025) 3px 4px),
    repeating-linear-gradient(97deg, rgba(0, 0, 0, 0.03) 0 1px, transparent 1px 5px);
}

.screen {
  position: absolute;
  z-index: 10;
  display: none;
  pointer-events: none;
}

.screen.is-visible {
  display: flex;
  pointer-events: auto;
  animation: screen-in 360ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.start-screen {
  inset: 0;
  align-items: center;
  padding: calc(4rem + var(--safe-top)) calc(5vw + var(--safe-right)) calc(3rem + var(--safe-bottom)) calc(6vw + var(--safe-left));
  background:
    linear-gradient(115deg, transparent 0 53%, rgba(42, 183, 169, 0.08) 53% 54%, transparent 54% 100%),
    linear-gradient(90deg, rgba(3, 16, 23, 0.97) 0%, rgba(3, 16, 23, 0.82) 42%, rgba(3, 16, 23, 0.14) 72%, transparent 100%);
}

.start-screen::before {
  content: "";
  position: absolute;
  top: 50%;
  right: 7vw;
  width: min(35rem, 39vw);
  aspect-ratio: 1;
  transform: translateY(-50%) rotate(-8deg);
  border: 2px solid rgba(244, 237, 218, 0.14);
  border-radius: 50%;
  box-shadow:
    0 0 0 2.4rem rgba(246, 196, 83, 0.035),
    0 0 0 4.8rem rgba(42, 183, 169, 0.028);
  pointer-events: none;
}

.start-screen::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 0.42rem;
  background: linear-gradient(90deg, var(--coral) 0 24%, var(--amber) 24% 58%, var(--teal) 58% 82%, var(--sky) 82% 100%);
  opacity: 0.86;
  pointer-events: none;
}

.brand-block {
  position: relative;
  z-index: 1;
  width: min(36rem, 50vw);
  isolation: isolate;
  transform: rotate(-0.35deg);
}

.brand-block::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -1.65rem -2rem -1.8rem -1.45rem;
  border-left: 5px solid var(--amber);
  background:
    linear-gradient(145deg, rgba(18, 49, 59, 0.96), rgba(3, 16, 23, 0.78)),
    var(--ink);
  clip-path: polygon(0 3%, 96% 0, 100% 10%, 98% 94%, 92% 100%, 4% 98%, 0 90%);
  filter: drop-shadow(10px 12px 0 rgba(3, 16, 23, 0.46));
}

.brand-block::after {
  content: "FIELD PASS / 08";
  position: absolute;
  right: 0.1rem;
  bottom: -0.9rem;
  padding: 0.28rem 0.5rem;
  background: var(--coral);
  color: var(--ink);
  font-size: 0.58rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  transform: rotate(-2deg);
}

.brand-block > .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.brand-block > .eyebrow::after {
  content: "";
  width: 3.4rem;
  height: 2px;
  background: var(--amber);
  opacity: 0.72;
}

.eyebrow {
  margin: 0 0 0.65rem;
  color: var(--amber);
  font-size: clamp(0.68rem, 1vw, 0.82rem);
  font-weight: 800;
  letter-spacing: 0.15em;
}

.brand-block h1 {
  display: flex;
  flex-wrap: wrap;
  gap: 0 0.12em;
  margin: 0;
  color: var(--paper);
  font-size: clamp(4.5rem, 9.3vw, 8.7rem);
  font-weight: 900;
  line-height: 0.82;
  letter-spacing: -0.085em;
  text-shadow: 0.055em 0.055em 0 var(--coral), 0.09em 0.09em 0 var(--shadow);
}

.brand-block h1 span:last-child {
  color: var(--amber);
}

.roman-title {
  width: fit-content;
  margin: 1rem 0 0;
  padding: 0.28rem 0.55rem 0.24rem;
  background: var(--sky);
  color: var(--ink);
  font-size: clamp(0.86rem, 1.6vw, 1.25rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  transform: rotate(0.5deg);
}

.tagline {
  max-width: 30rem;
  margin: 0.85rem 0 1.7rem;
  color: var(--paper-dim);
  font-size: clamp(1rem, 1.55vw, 1.28rem);
  line-height: 1.55;
}

.menu-actions {
  display: grid;
  grid-template-columns: minmax(12rem, 19rem) minmax(8rem, 11rem);
  gap: 0.65rem;
  width: min(31rem, 100%);
}

.menu-actions .primary-action {
  grid-row: span 2;
  min-height: 6.05rem;
}

.primary-action {
  position: relative;
  border-color: var(--amber);
  background: linear-gradient(135deg, #ffe08a, var(--amber) 62%, #e9a93c);
  color: var(--ink);
  clip-path: polygon(0 0, calc(100% - 13px) 0, 100% 13px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  box-shadow: none;
  filter: drop-shadow(7px 7px 0 var(--coral));
  font-size: 1.1rem;
}

.primary-action:hover,
.primary-action:focus-visible {
  background: var(--paper);
  border-color: var(--paper);
}

.button-kicker {
  display: block;
  margin-bottom: 0.45rem;
  color: color-mix(in srgb, var(--ink) 68%, transparent);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
}

.menu-actions > button:not(.primary-action) {
  position: relative;
  overflow: hidden;
  border-left: 4px solid var(--teal);
  background:
    linear-gradient(105deg, rgba(42, 183, 169, 0.13), transparent 56%),
    rgba(3, 16, 23, 0.88);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
  box-shadow: 4px 4px 0 rgba(3, 16, 23, 0.55);
}

.menu-actions > button:not(.primary-action)::after {
  content: "→";
  position: absolute;
  right: 0.65rem;
  color: var(--amber);
  font-size: 0.82rem;
  opacity: 0.72;
}

.start-meta {
  position: absolute;
  right: calc(2rem + var(--safe-right));
  bottom: calc(1.25rem + var(--safe-bottom));
  display: flex;
  gap: 1rem;
  border-top: 2px solid rgba(244, 237, 218, 0.24);
  padding-top: 0.55rem;
  color: rgba(244, 237, 218, 0.78);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
}

.start-meta span + span::before {
  content: "/";
  margin-right: 1rem;
  color: var(--coral);
}

.panel-screen {
  inset: 0;
  flex-direction: column;
  overflow-y: auto;
  padding: calc(3rem + var(--safe-top)) calc(5vw + var(--safe-right)) calc(3rem + var(--safe-bottom)) calc(5vw + var(--safe-left));
  background:
    linear-gradient(155deg, transparent 0 34%, rgba(42, 183, 169, 0.055) 34% 35%, transparent 35% 100%),
    radial-gradient(circle at 88% 18%, rgba(246, 196, 83, 0.1), transparent 28%),
    rgba(3, 16, 23, 0.96);
  backdrop-filter: blur(10px);
  scrollbar-color: var(--teal) var(--ink);
}

.panel-heading {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  max-width: 76rem;
  width: 100%;
  margin: 0 auto 2rem;
  border-bottom: 2px solid rgba(244, 237, 218, 0.34);
  padding-bottom: 1rem;
}

.panel-heading::after {
  content: "01  ·  02  ·  03  ·  ◆  ·  05  ·  06  ·  07  ·  ◆";
  position: absolute;
  right: 6.8rem;
  bottom: -0.52rem;
  padding: 0 0.6rem;
  background: var(--ink);
  color: rgba(244, 237, 218, 0.48);
  font-size: 0.58rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.panel-heading .eyebrow {
  grid-column: 1;
}

.panel-heading h2 {
  grid-column: 1;
  margin: 0;
  color: var(--paper);
  font-size: clamp(2.3rem, 5vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  text-shadow: 0.055em 0.055em 0 rgba(240, 93, 78, 0.6), 0.09em 0.09em 0 var(--shadow);
}

.panel-heading .text-action {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  border-left: 4px solid var(--amber);
  background: rgba(18, 49, 59, 0.78);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  width: min(76rem, 100%);
  margin: auto;
}

.level-card {
  position: relative;
  isolation: isolate;
  min-height: 9.6rem;
  overflow: hidden;
  padding: 1rem 1rem 0.9rem 1.15rem;
  border: 1px solid rgba(244, 237, 218, 0.36);
  border-top: 4px solid var(--card-accent, var(--amber));
  border-radius: 0;
  background:
    linear-gradient(105deg, color-mix(in srgb, var(--card-accent, var(--amber)) 16%, transparent), transparent 54%),
    linear-gradient(160deg, color-mix(in srgb, var(--card-bg, #12313b) 93%, var(--paper)), var(--card-bg, #12313b));
  text-align: left;
  box-shadow: inset 0 -1px 0 rgba(244, 237, 218, 0.12);
  clip-path: polygon(0 0, calc(100% - 13px) 0, 100% 13px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  filter: drop-shadow(6px 6px 0 rgba(0, 0, 0, 0.32));
}

.level-card::before {
  content: attr(data-level);
  position: absolute;
  z-index: -1;
  right: 0.35rem;
  bottom: -0.38em;
  color: rgba(244, 237, 218, 0.09);
  font-size: 5.6rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.12em;
}

.level-card::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: auto -12% -42% 34%;
  height: 86%;
  transform: rotate(-14deg);
  background: var(--card-accent, var(--amber));
  opacity: 0.23;
}

.level-card:not(:disabled):hover,
.level-card:not(:disabled):focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--paper);
  outline-color: var(--card-accent, var(--amber));
  filter: drop-shadow(9px 9px 0 rgba(0, 0, 0, 0.38));
}

.level-card[disabled] {
  cursor: not-allowed;
  filter: saturate(0.26) brightness(0.76) drop-shadow(4px 4px 0 rgba(0, 0, 0, 0.28));
  opacity: 0.72;
}

.level-card[data-level="4"],
.level-card[data-level="8"] {
  border-top-color: var(--coral);
  background:
    linear-gradient(105deg, rgba(240, 93, 78, 0.18), transparent 56%),
    linear-gradient(160deg, color-mix(in srgb, var(--card-bg, #12313b) 91%, var(--paper)), var(--card-bg, #12313b));
}

.level-card .card-number {
  display: block;
  width: fit-content;
  margin-bottom: 1.45rem;
  border-bottom: 2px solid currentColor;
  padding-bottom: 0.28rem;
  color: var(--card-accent, var(--amber));
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.level-card strong,
.level-card small {
  position: relative;
  z-index: 1;
  display: block;
}

.level-card strong {
  color: var(--paper);
  font-size: clamp(1.08rem, 1.75vw, 1.36rem);
  letter-spacing: -0.02em;
  text-shadow: 2px 2px 0 rgba(3, 16, 23, 0.45);
}

.level-card small {
  margin-top: 0.45rem;
  color: rgba(244, 237, 218, 0.72);
  font-size: 0.74rem;
  line-height: 1.35;
}

.guide-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  width: min(68rem, 100%);
  margin: auto;
}

.guide-primary {
  padding: 0 1.25rem;
  border-top: 4px solid var(--amber);
  background: rgba(18, 49, 59, 0.66);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  filter: drop-shadow(7px 7px 0 rgba(0, 0, 0, 0.28));
}

.guide-primary > div {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 0.5rem;
  min-height: 4.25rem;
  border-bottom: 1px solid rgba(244, 237, 218, 0.22);
  font-size: 1.05rem;
}

kbd {
  min-width: 2.7rem;
  padding: 0.46rem 0.65rem;
  border: 1px solid rgba(244, 237, 218, 0.55);
  background: rgba(244, 237, 218, 0.08);
  color: var(--amber);
  font: 800 0.72rem/1 "Trebuchet MS", sans-serif;
  text-align: center;
  box-shadow: 2px 2px 0 var(--coral);
}

.guide-notes {
  align-self: center;
  border-left: 4px solid var(--teal);
  padding: 0.2rem 1.2rem;
  background: linear-gradient(90deg, rgba(42, 183, 169, 0.1), transparent);
  color: var(--paper-dim);
  font-size: 1rem;
  line-height: 1.7;
}

.guide-notes strong {
  color: var(--paper);
}

.briefing-screen,
.center-screen {
  inset: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 2rem;
  background:
    repeating-linear-gradient(105deg, transparent 0 7px, rgba(244, 237, 218, 0.018) 7px 8px),
    rgba(3, 16, 23, 0.88);
  text-align: center;
  backdrop-filter: blur(5px);
}

.briefing-screen h2,
.center-screen h2 {
  margin: 0;
  color: var(--paper);
  font-size: clamp(3.1rem, 8vw, 7.2rem);
  line-height: 0.95;
  letter-spacing: -0.07em;
  text-shadow: 0.06em 0.06em 0 var(--shadow);
}

.briefing-rule {
  width: min(46rem, 80vw);
  height: 5px;
  margin-bottom: 1.4rem;
  background: linear-gradient(90deg, var(--coral) 0 28%, var(--amber) 28% 72%, var(--teal) 72% 100%);
  box-shadow: 0 5px 0 var(--shadow);
}

.briefing-subtitle {
  margin: 0.8rem 0 0;
  color: var(--amber);
  font-size: clamp(1rem, 2vw, 1.45rem);
  font-weight: 800;
}

.briefing-mechanic {
  max-width: 44rem;
  margin: 1.3rem 0 0;
  color: var(--paper-dim);
  font-size: clamp(0.9rem, 1.6vw, 1.1rem);
}

.start-prompt {
  margin: 2rem 0 0;
  color: var(--paper);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  animation: prompt-pulse 1.4s ease-in-out infinite;
}

.center-screen h2 {
  font-size: clamp(2.8rem, 7vw, 6rem);
}

.center-screen > p:not(.eyebrow) {
  max-width: 36rem;
  margin: 1rem 0 1.7rem;
  color: var(--paper-dim);
  font-size: 1rem;
  line-height: 1.6;
}

.stack-actions {
  display: grid;
  width: min(20rem, 80vw);
  gap: 0.65rem;
}

.stack-actions > button:not(.primary-action),
.center-screen > button:not(.primary-action) {
  border-left: 4px solid var(--teal);
  background: rgba(18, 49, 59, 0.86);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.34);
}

.center-screen > button {
  min-width: 15rem;
  margin: 0.35rem;
}

.victory-screen {
  background: linear-gradient(135deg, rgba(7, 28, 39, 0.95), rgba(19, 71, 75, 0.92));
}

.victory-stats {
  color: var(--amber) !important;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.hud {
  position: absolute;
  z-index: 6;
  top: calc(1rem + var(--safe-top));
  right: calc(1rem + var(--safe-right));
  left: calc(1rem + var(--safe-left));
  display: none;
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  pointer-events: none;
  filter: drop-shadow(3px 3px 0 rgba(0, 0, 0, 0.35));
}

.hud.is-visible {
  display: grid;
}

.hud-left,
.hud-right,
.boss-hud {
  background: linear-gradient(135deg, rgba(3, 16, 23, 0.95), rgba(18, 49, 59, 0.88));
  border-top: 3px solid var(--paper);
  padding: 0.55rem 0.7rem;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  box-shadow: inset 0 -1px 0 rgba(244, 237, 218, 0.12);
}

.hud-left {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 0.85rem;
}

.health {
  display: flex;
  gap: 0.25rem;
}

.health i {
  width: 1rem;
  height: 0.72rem;
  clip-path: polygon(18% 0, 100% 0, 82% 100%, 0 100%);
  background: rgba(244, 237, 218, 0.22);
}

.health i.is-full {
  background: linear-gradient(90deg, var(--coral), #ff8b68);
  box-shadow: inset 0 -2px 0 rgba(3, 16, 23, 0.25);
}

.stage-copy span,
.stage-copy strong {
  display: block;
}

.stage-copy span {
  color: var(--amber);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.stage-copy strong {
  margin-top: 0.15rem;
  color: var(--paper);
  font-size: 0.87rem;
}

.hud-right {
  justify-self: end;
  min-width: 11.8rem;
  text-align: right;
}

.dash-label {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.55rem;
  color: var(--paper-dim);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.dash-label::after {
  content: "";
  grid-column: 2;
  grid-row: 1;
  width: 100%;
  height: 0.38rem;
  border: 1px solid rgba(244, 237, 218, 0.16);
  background: rgba(244, 237, 218, 0.12);
}

#dash-fill {
  z-index: 1;
  grid-column: 2;
  grid-row: 1;
  width: 100%;
  height: 0.38rem;
  transform-origin: left center;
  background: linear-gradient(90deg, var(--amber), #ffe08a);
}

#item-status {
  display: block;
  margin-top: 0.38rem;
  color: var(--paper-dim);
  font-size: 0.63rem;
}

.boss-hud {
  min-width: 19rem;
  text-align: center;
  border-top-color: var(--coral);
}

.boss-hud > span,
.boss-hud small {
  display: block;
}

.boss-hud > span {
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.boss-health {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.35rem;
  margin: 0.42rem 0;
}

.boss-health i {
  height: 0.42rem;
  clip-path: polygon(5px 0, 100% 0, calc(100% - 5px) 100%, 0 100%);
  background: rgba(244, 237, 218, 0.2);
}

.boss-health i.is-full {
  background: var(--coral);
}

.boss-hud small {
  color: var(--paper-dim);
  font-size: 0.61rem;
}

.toast {
  position: absolute;
  z-index: 14;
  top: 21%;
  left: 50%;
  min-width: 12rem;
  max-width: min(34rem, 80vw);
  transform: translate(-50%, -1rem);
  border: 1px solid rgba(244, 237, 218, 0.48);
  border-left: 5px solid var(--amber);
  padding: 0.72rem 1rem;
  background: linear-gradient(110deg, rgba(18, 49, 59, 0.97), rgba(3, 16, 23, 0.96));
  color: var(--paper);
  font-size: 0.82rem;
  font-weight: 800;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease-out, transform 180ms ease-out;
}

.toast.is-visible {
  transform: translate(-50%, 0);
  opacity: 1;
}

.utility-bar {
  position: absolute;
  z-index: 16;
  right: calc(0.75rem + var(--safe-right));
  bottom: calc(0.75rem + var(--safe-bottom));
  display: flex;
  gap: 0.35rem;
}

.app-shell:has(#start-screen.is-visible) .utility-bar,
.app-shell:has(#level-screen.is-visible) .utility-bar,
.app-shell:has(#help-screen.is-visible) .utility-bar {
  top: calc(0.75rem + var(--safe-top));
  right: calc(0.75rem + var(--safe-right));
  bottom: auto;
}

.app-shell:has(#pause-screen.is-visible) .utility-bar {
  display: none;
}

.utility-bar button {
  min-height: 44px;
  min-width: 52px;
  padding: 0.55rem 0.65rem;
  border-color: rgba(244, 237, 218, 0.28);
  border-bottom: 3px solid var(--teal);
  background: rgba(3, 16, 23, 0.9);
  color: rgba(244, 237, 218, 0.84);
  font-size: 0.72rem;
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 0 100%);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.32);
}

.app-shell:has(#hud.is-visible) .utility-bar button:not([data-action="pause"]) {
  display: none;
}

.app-shell:has(#hud.is-visible) .utility-bar button[data-action="pause"] {
  border-bottom-color: var(--coral);
}

.touch-controls {
  position: absolute;
  z-index: 18;
  right: calc(1rem + var(--safe-right));
  bottom: calc(1rem + var(--safe-bottom));
  left: calc(1rem + var(--safe-left));
  display: none;
  justify-content: space-between;
  align-items: end;
  pointer-events: none;
}

.touch-move,
.touch-actions {
  display: flex;
  gap: 0.6rem;
  align-items: end;
  pointer-events: auto;
}

.touch-controls button {
  width: 4.2rem;
  height: 4.2rem;
  border: 2px solid rgba(244, 237, 218, 0.42);
  border-radius: 50%;
  padding: 0;
  background: color-mix(in srgb, var(--ink) 88%, var(--paper));
  color: var(--paper);
  font-size: 1.4rem;
  box-shadow: 3px 4px 0 rgba(0, 0, 0, 0.46), inset 0 0 0 1px rgba(244, 237, 218, 0.13);
  backdrop-filter: blur(4px);
  user-select: none;
}

.touch-controls button.is-pressed {
  transform: scale(0.92);
  background: var(--amber);
  color: var(--ink);
  box-shadow: 1px 1px 0 rgba(0, 0, 0, 0.42), inset 0 0 0 1px rgba(244, 237, 218, 0.16);
}

.touch-actions .touch-jump {
  width: 5.3rem;
  height: 5.3rem;
  border-color: var(--amber);
  background: var(--amber);
  color: var(--ink);
  box-shadow: 4px 5px 0 rgba(0, 0, 0, 0.48), inset 0 0 0 2px rgba(255, 255, 255, 0.16);
}

.touch-actions .touch-shoot {
  border-color: var(--sky);
  background: color-mix(in srgb, var(--sky) 22%, var(--ink));
}

.touch-actions .touch-dash {
  width: 3.7rem;
  height: 3.7rem;
  border-color: var(--coral);
  background: color-mix(in srgb, var(--coral) 24%, var(--ink));
  font-size: 1rem;
}

.touch-actions .touch-down {
  border-color: color-mix(in srgb, var(--amber) 72%, var(--paper));
  background: color-mix(in srgb, var(--amber) 16%, var(--ink));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

@keyframes screen-in {
  from { opacity: 0; transform: translateY(0.7rem); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes prompt-pulse {
  0%, 100% { opacity: 0.48; }
  50% { opacity: 1; }
}

@media (pointer: coarse), (max-width: 900px) {
  .touch-controls.is-visible {
    display: flex;
  }

  .utility-bar {
    top: calc(0.55rem + var(--safe-top));
    right: calc(0.55rem + var(--safe-right));
    bottom: auto;
  }

  .utility-bar button[data-action="pause"] {
    display: none;
  }

  .hud {
    top: calc(0.45rem + var(--safe-top));
    right: calc(0.45rem + var(--safe-right));
    left: calc(0.45rem + var(--safe-left));
  }

  .hud-right {
    display: none;
  }

  .hud {
    grid-template-columns: 1fr auto;
  }

  .boss-hud {
    grid-column: 2;
    min-width: 13rem;
  }

  .start-screen {
    padding-left: calc(5vw + var(--safe-left));
  }

  .brand-block {
    width: min(34rem, 68vw);
  }

  .brand-block h1 {
    font-size: clamp(4.2rem, 12vw, 7rem);
  }
}

@media (max-height: 520px) {
  .brand-block h1 {
    font-size: clamp(3.5rem, 12vh, 5.4rem);
  }
  .tagline {
    margin: 0.55rem 0 1rem;
  }
  .menu-actions .primary-action {
    min-height: 4.8rem;
  }
  .start-meta {
    display: none;
  }
  .panel-screen {
    padding-top: calc(1.2rem + var(--safe-top));
  }
  .level-card {
    min-height: 7.1rem;
  }
  .level-card .card-number {
    margin-bottom: 0.8rem;
  }
}

@media (max-height: 600px) and (min-width: 761px) {
  .app-shell:has(#level-screen.is-visible) .utility-bar,
  .app-shell:has(#help-screen.is-visible) .utility-bar {
    display: none;
  }

  .panel-screen {
    padding-top: calc(1.25rem + var(--safe-top));
    padding-bottom: calc(1.25rem + var(--safe-bottom));
  }

  .panel-heading {
    margin-bottom: 1rem;
    padding-bottom: 0.7rem;
  }

  .panel-heading h2 {
    font-size: clamp(2.35rem, 9vh, 3.35rem);
  }

  .guide-layout {
    gap: 2rem;
  }

  .guide-primary > div {
    min-height: 3.55rem;
  }

  .guide-notes {
    font-size: 0.92rem;
    line-height: 1.5;
  }
}

@media (max-width: 760px) {
  .level-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .guide-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 360px) {
  .panel-heading::after {
    display: none;
  }

  .level-card .card-number {
    font-size: 0.57rem;
    letter-spacing: 0.05em;
  }
}

@media (orientation: portrait) and (max-width: 760px) {
  #game {
    inset: 46% 0 auto;
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    transform: translateY(-50%);
    border-block: 2px solid color-mix(in srgb, var(--sky) 58%, transparent);
    background: var(--ink);
    box-shadow: 0 -12px 28px rgba(0, 0, 0, 0.22), 0 12px 28px rgba(0, 0, 0, 0.28);
    object-position: center;
  }

  .start-screen {
    align-items: center;
    overflow-y: auto;
    padding:
      calc(4rem + var(--safe-top))
      calc(1rem + var(--safe-right))
      calc(2.5rem + var(--safe-bottom))
      calc(1rem + var(--safe-left));
    background:
      linear-gradient(160deg, transparent 0 42%, rgba(42, 183, 169, 0.07) 42% 43%, transparent 43% 100%),
      linear-gradient(180deg, rgba(3, 16, 23, 0.96), rgba(3, 16, 23, 0.76));
  }

  .start-screen::before {
    top: 14%;
    right: -3.5rem;
    width: 13rem;
    transform: none;
    opacity: 0.7;
  }

  .brand-block {
    width: 100%;
    max-width: none;
    transform: none;
  }

  .brand-block::before {
    inset: -0.85rem -0.5rem -1rem;
    border-left-width: 4px;
    filter: drop-shadow(7px 8px 0 rgba(3, 16, 23, 0.42));
  }

  .brand-block::after {
    display: none;
  }

  .brand-block h1 {
    flex-wrap: nowrap;
    font-size: clamp(3.5rem, 18vw, 4.8rem);
  }

  .roman-title {
    margin-top: 0.65rem;
    font-size: 0.78rem;
  }

  .tagline {
    margin: 0.65rem 0 1rem;
    font-size: 0.92rem;
  }

  .menu-actions {
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
  }

  .menu-actions .primary-action {
    grid-column: 1 / -1;
    grid-row: auto;
    min-height: 4.5rem;
  }

  .start-meta {
    display: none;
  }

  .panel-screen {
    padding:
      calc(4rem + var(--safe-top))
      calc(0.85rem + var(--safe-right))
      calc(1.25rem + var(--safe-bottom))
      calc(0.85rem + var(--safe-left));
  }

  .panel-heading {
    margin-bottom: 1rem;
  }

  .panel-heading h2 {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .hud {
    top: calc(0.4rem + var(--safe-top));
    right: calc(3.7rem + var(--safe-right));
    left: calc(0.45rem + var(--safe-left));
    grid-template-columns: minmax(0, 1fr);
    gap: 0.25rem;
  }

  .hud-left {
    width: max-content;
    max-width: 100%;
    gap: 0.5rem;
    padding: 0.4rem 0.5rem;
  }

  .health i {
    width: 0.78rem;
  }

  .stage-copy strong {
    max-width: 10rem;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }

  .boss-hud {
    grid-column: 1;
    width: 100%;
    min-width: 0;
    padding: 0.35rem 0.5rem;
  }

  .boss-health {
    margin: 0.25rem 0;
  }

  .app-shell:has(#hud.is-visible) .utility-bar button {
    display: none;
  }

  .app-shell:has(#hud.is-visible) .utility-bar button[data-action="pause"] {
    display: block;
  }

  .touch-controls {
    right: calc(0.45rem + var(--safe-right));
    bottom: calc(0.45rem + var(--safe-bottom));
    left: calc(0.45rem + var(--safe-left));
  }

  .touch-move,
  .touch-actions {
    gap: 0.2rem;
  }

  .touch-controls button,
  .touch-actions .touch-dash,
  .touch-actions .touch-down {
    width: 2.75rem;
    height: 2.75rem;
    font-size: 0.9rem;
  }

  .touch-actions .touch-jump {
    width: 3.5rem;
    height: 3.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }
}