:root {
  --ui-panel: url("assets/ui/panel-water.png");
  --ui-card: url("assets/ui/card-ripple.png");
  --ui-button: url("assets/ui/button-pill.png");
  --page-top: #f6f6ec;
  --page-mid: #d8efe8;
  --page-bottom: #bddfd1;
  --ink-strong: #263e39;
  --ink-soft: #55726b;
  --mint: #79c8a8;
  --jade: #4f9d7d;
  --lotus: #f3c98e;
  --sun: #e89b58;
  --pond: #7cc7d1;
  --night: #395667;
  --panel-bg: rgba(249, 251, 244, 0.78);
  --panel-strong: rgba(255, 255, 255, 0.88);
  --line-soft: rgba(255, 255, 255, 0.72);
  --shadow-soft: 0 22px 54px rgba(45, 79, 70, 0.16);
  --shadow-accent: 0 16px 34px rgba(121, 200, 168, 0.24);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  position: relative;
  overflow-x: hidden;
  color: var(--ink-strong);
  font-family: "Trebuchet MS", "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 12% 16%, rgba(255, 241, 209, 0.5), transparent 24%),
    radial-gradient(circle at 82% 20%, rgba(124, 199, 209, 0.42), transparent 24%),
    radial-gradient(circle at 34% 84%, rgba(121, 200, 168, 0.28), transparent 20%),
    linear-gradient(180deg, var(--page-top), var(--page-mid) 46%, var(--page-bottom));
}

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

button,
input,
select {
  font: inherit;
}

.pond-light,
.reed-shadow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.pond-light {
  background:
    radial-gradient(circle at 18% 24%, rgba(255, 255, 255, 0.34), transparent 16%),
    radial-gradient(circle at 72% 68%, rgba(255, 255, 255, 0.18), transparent 12%),
    radial-gradient(circle at 84% 28%, rgba(255, 255, 255, 0.16), transparent 10%);
  mix-blend-mode: screen;
}

.reed-shadow {
  background:
    linear-gradient(90deg, rgba(53, 94, 82, 0.04) 0 6%, transparent 6% 100%),
    linear-gradient(90deg, transparent 0 88%, rgba(53, 94, 82, 0.05) 88% 92%, transparent 92% 100%);
  mask-image: radial-gradient(circle at center, black 38%, transparent 92%);
}

.game-shell {
  position: relative;
  z-index: 1;
  width: min(1380px, calc(100% - 30px));
  margin: 0 auto;
  padding: 24px 0 20px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  padding: 24px 26px;
  margin-bottom: 18px;
  border-radius: 32px;
  border: 1px solid var(--line-soft);
  background: var(--panel-bg);
  background-image: var(--ui-panel);
  background-size: cover;
  background-position: center;
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft);
}

.title-wrap {
  max-width: 620px;
}

.game-logo {
  display: block;
  width: min(510px, 100%);
  margin: 0;
  filter: drop-shadow(0 14px 26px rgba(79, 157, 125, 0.2));
}

.intro {
  margin: 14px 0 0;
  color: var(--ink-soft);
  line-height: 1.66;
}

.eyebrow,
.section-kicker,
.overlay-tag,
.hud-item label,
.meta-chip label,
.badge,
.card-tag {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.quick-links a {
  color: var(--ink-strong);
  text-decoration: none;
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 24px rgba(76, 122, 108, 0.08);
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.quick-links .mini-link {
  color: var(--ink-soft);
}

.quick-links a:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 28px rgba(76, 122, 108, 0.12);
}

.hud {
  display: grid;
  grid-template-columns: repeat(4, minmax(132px, 1fr));
  gap: 12px;
  min-width: min(590px, 100%);
}

.hud-item,
.meta-chip,
.status-card,
.panel-block,
.canvas-frame {
  background: var(--panel-bg);
  border: 1px solid var(--line-soft);
  background-image: var(--ui-panel);
  background-size: cover;
  background-position: center;
  backdrop-filter: blur(15px);
  box-shadow: var(--shadow-soft);
}

.hud-item {
  position: relative;
  min-height: 92px;
  padding: 14px 16px 14px 70px;
  border-radius: 24px;
}

.hud-item strong {
  display: block;
  font-size: 1.2rem;
  line-height: 1.2;
}

.hud-item::before,
.meta-chip::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 30%, rgba(255, 255, 255, 0.8), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.55), rgba(255, 255, 255, 0.08));
  box-shadow: inset 0 -5px 10px rgba(38, 62, 57, 0.08);
}

.hud-world::before,
.meta-reward::before {
  background-color: rgba(121, 200, 168, 0.32);
}

.hud-stage::before,
.meta-stage::before {
  background-color: rgba(243, 201, 142, 0.36);
}

.hud-wave::before,
.meta-unlock::before {
  background-color: rgba(124, 199, 209, 0.38);
}

.hud-lives::before {
  background-color: rgba(232, 155, 88, 0.38);
}

.hud-petals::before {
  background-color: rgba(121, 200, 168, 0.42);
}

.hud-remaining::before {
  background-color: rgba(57, 86, 103, 0.34);
}

.hud-variant::before {
  background-color: rgba(243, 201, 142, 0.4);
}

.hud-palette::before {
  background-color: rgba(180, 214, 116, 0.42);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: start;
}

.mission-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.status-card {
  flex: 1;
  padding: 17px 18px;
  border-radius: 24px;
}

.status-line {
  margin: 0;
  font-size: 1rem;
  line-height: 1.58;
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.sound-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  background-image: var(--ui-card);
  background-size: cover;
  background-position: center;
  border: 1px solid rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 22px rgba(76, 122, 108, 0.1);
}

.volume-control {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 156px;
  padding-left: 28px;
}

.volume-control::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 18px;
  height: 18px;
  transform: translateY(-50%);
  background: center / contain no-repeat url("assets/ui/icon-volume.png");
  opacity: 0.92;
}

.volume-label,
.volume-value {
  color: var(--ink-soft);
  font-size: 0.8rem;
  font-weight: 700;
}

.volume-label {
  min-width: 28px;
}

.volume-value {
  min-width: 38px;
  text-align: right;
}

.volume-slider {
  flex: 1;
  accent-color: var(--jade);
  cursor: pointer;
}

.volume-slider:disabled {
  opacity: 0.5;
  cursor: default;
}

.pill-button,
.action-button,
.overlay-actions button,
.world-card,
.stage-pill {
  position: relative;
  appearance: none;
  border: 0;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, opacity 120ms ease;
}

.pill-button,
.overlay-actions button {
  border-radius: 999px;
}

.pill-button {
  padding: 13px 18px 13px 44px;
  color: white;
  background:
    linear-gradient(135deg, rgba(79, 157, 125, 0.94), rgba(124, 199, 209, 0.94)),
    var(--ui-button);
  background-size: cover, cover;
  background-position: center, center;
  box-shadow: var(--shadow-accent);
}

.pill-button.secondary,
.overlay-actions .secondary {
  color: var(--ink-strong);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(232, 245, 239, 0.94)),
    var(--ui-button);
  background-size: cover, cover;
  background-position: center, center;
  box-shadow: 0 12px 22px rgba(76, 122, 108, 0.14);
}

.pill-button:hover,
.action-button:hover,
.overlay-actions button:hover,
.world-card:hover,
.stage-pill:hover {
  transform: translateY(-2px);
}

.pill-button:disabled,
.action-button:disabled,
.world-card:disabled,
.stage-pill:disabled {
  opacity: 0.5;
  cursor: default;
  box-shadow: none;
  transform: none;
}

.meta-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.meta-chip {
  position: relative;
  padding: 14px 16px 14px 66px;
  border-radius: 20px;
}

.meta-chip strong {
  display: block;
  font-size: 1.16rem;
}

.canvas-frame {
  padding: 14px;
  border-radius: 28px;
  overflow: hidden;
}

.canvas-stage {
  position: relative;
}

#game-canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(247, 252, 250, 0.34), rgba(255, 255, 255, 0.08));
  cursor: pointer;
}

.action-menu {
  position: absolute;
  z-index: 3;
  width: min(290px, calc(100% - 24px));
  max-height: calc(100% - 20px);
  padding: 12px;
  border-radius: 22px;
  background: rgba(249, 251, 244, 0.96);
  background-image: var(--ui-panel);
  background-size: cover;
  background-position: center;
  border: 1px solid rgba(255, 255, 255, 0.94);
  box-shadow: 0 26px 46px rgba(38, 62, 57, 0.2);
  backdrop-filter: blur(18px);
  overflow: auto;
}

.action-menu.build-menu {
  width: min(316px, calc(100% - 20px));
  overflow: visible;
  padding-bottom: 118px;
}

.action-menu.tower-menu {
  width: min(304px, calc(100% - 20px));
}

.action-menu-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.action-menu-identity {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.action-menu-identity > div:last-child {
  min-width: 0;
}

.action-menu-head h3 {
  margin: 0;
  font-size: 1rem;
}

.action-menu-head p {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.35;
}

.action-menu-close {
  position: relative;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.84);
  color: var(--ink-strong);
  box-shadow: 0 10px 18px rgba(76, 122, 108, 0.1);
  font-size: 0;
  color: transparent;
}

.action-menu-close::before {
  content: "";
  position: absolute;
  inset: 8px;
  background: center / contain no-repeat url("assets/ui/icon-close.png");
  opacity: 0.9;
}

.action-menu-options {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.action-menu.build-menu .action-menu-options {
  position: relative;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-items: start;
  isolation: isolate;
}

.action-menu-option {
  width: 100%;
  padding: 12px 13px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.92);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(235, 247, 240, 0.95)),
    var(--ui-card);
  background-size: cover, cover;
  background-position: center, center;
  color: var(--ink-strong);
  text-align: left;
  box-shadow: 0 12px 24px rgba(76, 122, 108, 0.1);
}

.action-menu.build-menu .action-menu-option.icon-only {
  position: relative;
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 8px;
  overflow: visible;
  z-index: 0;
}

.action-menu-option:hover {
  transform: translateY(-2px);
}

.action-menu.build-menu .action-menu-option.icon-only:hover,
.action-menu.build-menu .action-menu-option.icon-only:focus-visible {
  z-index: 8;
  box-shadow: 0 16px 30px rgba(76, 122, 108, 0.16);
}

.action-menu-option:disabled {
  opacity: 0.5;
  cursor: default;
  transform: none;
  box-shadow: none;
}

.action-menu-option-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.action-menu-option-top strong {
  font-size: 0.92rem;
}

.action-menu-cost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  font-size: 0.74rem;
  font-weight: 700;
}

.action-menu-copy {
  display: block;
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 0.78rem;
  line-height: 1.34;
}

.action-menu-stats {
  margin-top: 12px;
}

.action-menu-actions {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.action-menu.tower-menu .action-button {
  width: 100%;
  flex: none;
  min-height: 0;
}

.menu-thumb {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 60px;
  transition: transform 120ms ease, filter 120ms ease;
}

.menu-thumb.compact {
  width: 56px;
  height: 48px;
}

.menu-thumb-frog {
  filter: drop-shadow(0 10px 14px rgba(38, 62, 57, 0.12));
}

.menu-thumb-image {
  display: none;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.menu-thumb.has-image .menu-thumb-image {
  display: block;
}

.menu-thumb.has-image .menu-thumb-fallback {
  display: none;
}

.menu-thumb.compact .menu-frog-svg {
  width: 56px;
  height: 48px;
}

.menu-frog-svg {
  display: block;
  width: 72px;
  height: 60px;
  overflow: visible;
}

.action-menu.build-menu .action-menu-option.icon-only:hover .menu-thumb,
.action-menu.build-menu .action-menu-option.icon-only:focus-visible .menu-thumb {
  transform: translateY(-3px) scale(1.04);
}

.action-menu-option:disabled .menu-thumb {
  filter: grayscale(0.24) saturate(0.78) brightness(0.92);
}

.menu-hovercard {
  position: absolute;
  left: 50%;
  top: calc(100% + 10px);
  z-index: 6;
  width: 176px;
  padding: 10px 11px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid rgba(255, 255, 255, 0.98);
  box-shadow: 0 22px 38px rgba(38, 62, 57, 0.2);
  transform: translate(-50%, 6px) scale(0.98);
  opacity: 0;
  pointer-events: none;
  transition: opacity 120ms ease, transform 120ms ease;
}

.action-menu.build-menu .action-menu-option:nth-child(n + 4) .menu-hovercard {
  top: auto;
  bottom: calc(100% + 10px);
}

.action-menu.build-menu .action-menu-option:nth-child(3n + 1) .menu-hovercard {
  left: 0;
  transform: translate(0, 6px) scale(0.98);
}

.action-menu.build-menu .action-menu-option:nth-child(3n) .menu-hovercard {
  left: auto;
  right: 0;
  transform: translate(0, 6px) scale(0.98);
}

.action-menu-option:hover .menu-hovercard,
.action-menu-option:focus-visible .menu-hovercard {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}

.action-menu.build-menu .action-menu-option:nth-child(3n + 1):hover .menu-hovercard,
.action-menu.build-menu .action-menu-option:nth-child(3n + 1):focus-visible .menu-hovercard,
.action-menu.build-menu .action-menu-option:nth-child(3n):hover .menu-hovercard,
.action-menu.build-menu .action-menu-option:nth-child(3n):focus-visible .menu-hovercard {
  transform: translate(0, 0) scale(1);
}

.menu-hover-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.menu-hover-top strong {
  font-size: 0.9rem;
  line-height: 1.16;
}

.menu-hovercopy,
.menu-hoverdesc {
  display: block;
  color: var(--ink-soft);
}

.menu-hovercopy {
  margin-top: 6px;
  font-size: 0.78rem;
  line-height: 1.3;
}

.menu-hoverdesc {
  margin-top: 8px;
  font-size: 0.75rem;
  line-height: 1.3;
}

.menu-hoverbadges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.menu-hoverbadge {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--ink-strong);
  font-size: 0.72rem;
}

.canvas-hint {
  position: absolute;
  left: 18px;
  bottom: 18px;
  max-width: min(340px, calc(100% - 36px));
  padding: 10px 14px;
  border-radius: 16px;
  background: rgba(248, 251, 245, 0.84);
  border: 1px solid rgba(255, 255, 255, 0.92);
  box-shadow: 0 14px 30px rgba(38, 62, 57, 0.14);
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.42;
  pointer-events: none;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-block {
  padding: 18px;
  border-radius: 24px;
}

.panel-block h2 {
  margin: 0 0 14px;
  font-size: 1.08rem;
}

.panel-block p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.56;
}

.panel-block p + p {
  margin-top: 10px;
}

.selection-panel,
.wave-preview,
.world-list,
.stage-list {
  display: grid;
  gap: 12px;
}

.selection-card,
.preview-card,
.world-card,
.stage-pill {
  padding: 14px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.86);
  box-shadow: 0 14px 26px rgba(38, 62, 57, 0.08);
}

.selection-card h3,
.world-card strong {
  margin: 0;
  font-size: 1rem;
}

.selection-card p,
.world-card p,
.preview-card p {
  margin: 0;
  color: var(--ink-soft);
}

.selection-copy {
  margin-top: 8px;
}

.selection-grid,
.selection-stats,
.selection-actions,
.world-meta,
.preview-grid {
  display: flex;
  gap: 10px;
}

.selection-grid,
.world-meta {
  justify-content: space-between;
  align-items: center;
}

.selection-stats,
.preview-grid {
  flex-wrap: wrap;
  margin-top: 10px;
}

.stat-pill,
.preview-pill,
.world-chip,
.color-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--ink-strong);
  font-size: 0.82rem;
}

.selection-actions {
  margin-top: 14px;
  flex-wrap: wrap;
}

.selection-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.selection-list-item {
  padding: 11px 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.86);
}

.selection-list-item strong {
  display: block;
  font-size: 0.9rem;
}

.selection-list-item span {
  display: block;
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 0.78rem;
  line-height: 1.34;
}

.action-button {
  flex: 1 1 128px;
  min-height: 54px;
  padding: 12px 14px;
  border-radius: 16px;
  text-align: left;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(234, 247, 240, 0.92)),
    var(--ui-card);
  background-size: cover, cover;
  background-position: center, center;
  color: var(--ink-strong);
  box-shadow: 0 12px 24px rgba(76, 122, 108, 0.14);
}

.action-button.secondary {
  background:
    linear-gradient(180deg, rgba(255, 250, 246, 0.92), rgba(253, 235, 213, 0.94)),
    var(--ui-card);
  background-size: cover, cover;
  background-position: center, center;
}

.action-button.icon-fuse,
.action-button.icon-sell {
  padding-left: 48px;
}

.action-button.icon-fuse::before,
.action-button.icon-sell::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  width: 18px;
  height: 18px;
  transform: translateY(-50%);
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  opacity: 0.92;
}

.action-button.icon-fuse::before {
  background-image: url("assets/ui/icon-fuse.png");
}

.action-button.icon-sell::before {
  background-image: url("assets/ui/icon-sell.png");
}

.action-title {
  display: block;
  font-weight: 700;
}

.action-copy {
  display: block;
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 0.78rem;
  line-height: 1.34;
}

.color-swatch {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: inset 0 -3px 6px rgba(38, 62, 57, 0.12);
}

.wave-preview {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.preview-card h3 {
  margin: 0 0 8px;
  font-size: 0.94rem;
}

.world-card {
  width: 100%;
  text-align: left;
  background-image: var(--ui-card);
  background-size: cover;
  background-position: center;
}

.world-card.active {
  border-color: rgba(121, 200, 168, 0.7);
  box-shadow: 0 18px 34px rgba(79, 157, 125, 0.18);
}

.world-card.completed {
  border-color: rgba(232, 155, 88, 0.56);
}

.world-card.locked {
  opacity: 0.56;
}

.world-card p {
  margin-top: 8px;
  line-height: 1.45;
}

.world-meta {
  margin-top: 10px;
  flex-wrap: wrap;
}

.world-badge {
  width: 74px;
  height: 48px;
  object-fit: contain;
  filter: drop-shadow(0 8px 16px rgba(38, 62, 57, 0.14));
}

.stage-list {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.stage-pill {
  padding: 12px 8px;
  min-height: 86px;
  text-align: center;
  color: var(--ink-strong);
}

.stage-pill.active {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(225, 244, 236, 0.94));
  border-color: rgba(121, 200, 168, 0.72);
  box-shadow: 0 16px 30px rgba(79, 157, 125, 0.14);
}

.stage-pill.completed {
  border-color: rgba(232, 155, 88, 0.48);
}

.stage-number {
  display: block;
  font-size: 1.12rem;
  font-weight: 700;
}

.stage-caption {
  display: block;
  margin-top: 6px;
  color: var(--ink-soft);
  font-size: 0.78rem;
  line-height: 1.3;
}

select {
  width: 100%;
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink-strong);
}

select:focus-visible,
button:focus-visible,
input:focus-visible,
#game-canvas:focus-visible {
  outline: 3px solid rgba(121, 200, 168, 0.46);
  outline-offset: 2px;
}

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  padding: 3px 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.92);
  color: var(--ink-strong);
  box-shadow: inset 0 -2px 0 rgba(79, 157, 125, 0.12);
}

.hint {
  color: var(--ink-soft);
}

.ad-zone {
  position: relative;
  z-index: 1;
  width: min(1380px, calc(100% - 30px));
  margin: 0 auto 28px;
  padding: 0 0 18px;
}

.overlay {
  position: fixed;
  inset: 0;
  z-index: 5;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 22px;
  background: rgba(38, 62, 57, 0.28);
  backdrop-filter: blur(9px);
}

.overlay.visible {
  display: flex;
}

.overlay .panel {
  width: min(560px, 100%);
  padding: 30px;
  border-radius: 30px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(240, 248, 243, 0.93));
  border: 1px solid rgba(255, 255, 255, 0.96);
  box-shadow: 0 34px 60px rgba(38, 62, 57, 0.24);
}

.overlay .panel h2 {
  margin: 0 0 14px;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: 1.06;
  font-family: Georgia, "Trebuchet MS", serif;
}

.overlay .panel p {
  margin: 0;
  line-height: 1.6;
}

.overlay .panel p + p {
  margin-top: 10px;
  color: var(--ink-soft);
}

.overlay-actions {
  display: flex;
  gap: 12px;
  margin-top: 22px;
}

.overlay-actions button {
  flex: 1;
  padding: 13px 16px 13px 44px;
  color: white;
  background:
    linear-gradient(135deg, rgba(79, 157, 125, 0.94), rgba(124, 199, 209, 0.94)),
    var(--ui-button);
  background-size: cover, cover;
  background-position: center, center;
}

#start-wave-button::before,
#speed-button::before,
#sound-button::before,
#overlay-action::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  width: 18px;
  height: 18px;
  transform: translateY(-50%);
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  opacity: 0.94;
}

#start-wave-button::before {
  background-image: url("assets/ui/icon-wave.png");
}

#speed-button::before {
  background-image: url("assets/ui/icon-speed.png");
}

#sound-button::before {
  background-image: url("assets/ui/icon-sound-on.png");
}

#sound-button.is-muted::before {
  background-image: url("assets/ui/icon-sound-off.png");
}

#overlay-action::before {
  background-image: url("assets/ui/icon-start.png");
}

.hidden {
  display: none !important;
}

@media (max-width: 1180px) {
  .topbar,
  .mission-row {
    flex-direction: column;
  }

  .hud {
    width: 100%;
    min-width: 0;
  }

  .layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .game-shell {
    width: min(100% - 18px, 100%);
    padding-top: 18px;
  }

  .topbar,
  .panel-block,
  .canvas-frame,
  .status-card {
    border-radius: 24px;
  }

  .hud {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .meta-row,
  .wave-preview,
  .stage-list {
    grid-template-columns: 1fr;
  }

  .toolbar-actions,
  .overlay-actions,
  .selection-actions {
    flex-direction: column;
  }

  .sound-controls,
  .volume-control {
    width: 100%;
  }

  .action-menu {
    width: min(100%, calc(100% - 16px));
  }

  .action-menu.build-menu .action-menu-options {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}