:root {
  color-scheme: dark;
  --bg-top: #11161d;
  --bg-bottom: #0c1016;
  --deck-bg: rgba(17, 27, 39, 0.8);
  --deck-border: rgba(173, 207, 235, 0.18);
  --text-main: #e6eff8;
  --text-soft: #9fb6ca;
  --accent: #7dc8ff;

  --species-ready-green: #84e89a;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  width: 100%;
  min-height: 100%;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--text-main);
  background: linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

h1,
h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
}

button {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.03) 0.5px, transparent 0.5px);
  background-size: 3px 3px;
  opacity: 0.12;
}

body.cinema-mode {
  cursor: none;
}

body.cinema-mode .ui-deck,
body.cinema-mode .deck-toggle,
body.cinema-mode .start-screen,
body.cinema-mode .info-modal-backdrop,
body.cinema-mode [data-cinema-hide='true'] {
  display: none !important;
  pointer-events: none !important;
}

body.cinema-mode .page-layout {
  grid-template-columns: 1fr;
  gap: 0;
  padding: 0;
}

body.cinema-mode .tank-stage,
body.cinema-mode .tank-shell,
body.cinema-mode #aquariumCanvas {
  width: 100%;
  height: 100%;
  max-width: none;
  border-radius: 0;
}

body.cinema-mode .tank-shell {
  box-shadow: none;
}

.fullscreen-hint {
  position: fixed;
  right: 22px;
  bottom: 20px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(212, 238, 255, 0.3);
  background: rgba(8, 18, 30, 0.44);
  color: rgba(234, 247, 255, 0.92);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 360ms ease, transform 360ms ease;
  pointer-events: none;
  z-index: 25;
}

.fullscreen-hint.is-visible {
  opacity: 1;
  transform: translateY(0);
}


.start-screen {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
  z-index: 50;
  background: linear-gradient(180deg, rgba(12, 28, 45, 0.94), rgba(7, 18, 31, 0.97));
}


.start-card {
  position: relative;
  z-index: 1;
  width: min(520px, calc(100vw - 36px));
  border: 1px solid rgba(168, 223, 255, 0.32);
  border-radius: 14px;
  padding: 22px 20px;
  background: rgba(7, 26, 48, 0.68);
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(9px);
}

.start-card h1 {
  margin: 0 0 12px;
  text-align: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: none;
}

.start-control-group {
  margin: 10px 0 14px;
}

.start-actions {
  display: grid;
  gap: 10px;
}

.start-actions {
  display: grid;
  gap: 10px;
}

.start-btn {
  width: 100%;
  border: 1px solid rgba(177, 231, 255, 0.44);
  border-radius: 10px;
  padding: 11px 12px;
  font-size: 0.95rem;
  cursor: pointer;
  background: linear-gradient(180deg, rgba(47, 132, 201, 0.86), rgba(24, 82, 134, 0.92));
  color: var(--text-main);
  transition: background-color 120ms ease, border-color 120ms ease;
}

.start-btn:hover {
  background: linear-gradient(180deg, rgba(43, 121, 186, 0.86), rgba(22, 73, 120, 0.92));
  border-color: rgba(177, 231, 255, 0.5);
}

.start-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  filter: none;
}

.start-btn:disabled:hover {
  transform: none;
  filter: none;
}



.home-link {
  display: block;
  margin-top: 16px;
  font-size: 12px;
  color: #7f8b99;
  text-decoration: none;
  text-align: center;
  opacity: 0.75;
  transition: opacity 0.2s ease;
}

.home-link:hover {
  opacity: 1;
  text-decoration: underline;
}
.about-seo {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px solid rgba(157, 210, 255, 0.16);
  color: rgba(201, 219, 233, 0.82);
  font-size: 0.84rem;
  line-height: 1.55;
  max-width: 720px;
}

.about-seo summary {
  cursor: pointer;
  color: rgba(222, 238, 250, 0.86);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.about-seo p {
  margin: 8px 0 0;
}

.about-seo-footer {
  width: min(100%, 1024px);
  margin: 56px auto 28px;
  padding: 0 clamp(20px, 3.5vw, 48px);
}

.about-seo-footer .about-seo {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}
.saved-start-meta {
  margin: 14px 0 0;
  border-top: 1px solid rgba(157, 210, 255, 0.2);
  padding-top: 10px;
  color: var(--text-soft);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  letter-spacing: 0.015em;
  line-height: 1.5;
  font-size: 0.84rem;
}

.info-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(2, 8, 14, 0.72);
}

.info-modal {
  width: min(680px, 100%);
  max-height: min(78vh, 720px);
  border: 1px solid rgba(168, 223, 255, 0.28);
  border-radius: 12px;
  background: rgba(8, 24, 42, 0.95);
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
}

.info-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border-bottom: 1px solid rgba(173, 207, 235, 0.2);
}

.info-modal-header h2 {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  letter-spacing: 0.04em;
  font-size: 0.9rem;
}

.info-modal-close {
  border: 1px solid rgba(177, 231, 255, 0.4);
  border-radius: 8px;
  padding: 4px 8px;
  background: rgba(25, 66, 99, 0.9);
  color: var(--text-main);
  cursor: pointer;
}

.info-modal-content {
  padding: 12px;
  overflow-y: auto;
  color: var(--text-soft);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  letter-spacing: 0.015em;
  line-height: 1.5;
  font-size: 0.94rem;
}

.info-modal-content p {
  margin: 0 0 12px;
}


.restart-confirm {
  margin-top: 10px;
  border: 1px solid rgba(173, 207, 235, 0.22);
  border-radius: 8px;
  padding: 10px;
  background: rgba(16, 32, 47, 0.62);
}

.restart-confirm p {
  margin: 0;
  color: var(--text-main);
  font-size: 0.83rem;
}

.page-layout {
  --tank-height: clamp(460px, 82vh, 790px);
  --tank-max-width: 1274px;
  min-height: 100vh;
  min-height: 100dvh;
  padding: clamp(20px, 3.5vw, 48px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 288px;
  gap: clamp(8px, 1.2vw, 16px);
  align-items: start;
}

.tank-stage {
  min-width: 0;
  height: var(--tank-height);
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.tank-shell {
  width: min(100%, var(--tank-max-width));
  height: var(--tank-height);
  border-radius: 14px;
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.32), 0 3px 10px rgba(0, 0, 0, 0.24);
}

#aquariumCanvas {
  width: 100%;
  height: 100%;
  border-radius: 14px;
  display: block;
}

.ui-deck {
  width: 100%;
  height: var(--tank-height);
  position: sticky;
  top: clamp(20px, 3.5vw, 48px);
  align-self: start;
  border-radius: 12px;
  border: 1px solid var(--deck-border);
  background: var(--deck-bg);
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.26);
  overflow: hidden;
  z-index: 4;
  display: flex;
  flex-direction: column;
}

.deck-header {
  padding: 10px 12px 9px;
  border-bottom: 1px solid var(--deck-border);
}

.deck-header h1 {
  margin: 0;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
}

.deck-header p {
  margin: 3px 0 0;
  color: var(--text-soft);
  font-size: 0.75rem;
}

.tab-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--deck-border);
}

.tab-button {
  background: transparent;
  border: 0;
  color: var(--text-soft);
  padding: 9px;
  cursor: pointer;
  transition: 150ms ease;
  font-size: 0.84rem;
}

.tab-button.active {
  color: var(--text-main);
  background: rgba(94, 162, 215, 0.12);
}

.tab-content {
  display: none;
  padding: 11px;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}

.tab-content.active {
  display: block;
}

h2 {
  margin: 0 0 8px;
  font-size: 0.9rem;
}

.stat-row,
.control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 8px 0;
  color: var(--text-soft);
  font-size: 0.84rem;
}

.stat-row {
  flex-direction: row;
  justify-content: space-between;
  color: var(--text-main);
}

.stat-row--eggs {
  color: #2ecc71;
}



.control-group.is-dim {
  opacity: 0.58;
}

.control-hint {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.76rem;
  line-height: 1.3;
}


input[type='range'] {
  width: 100%;
  accent-color: var(--accent);
}

.button-row {
  margin-top: 10px;
}

.button-row.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.button-row button,
.deck-toggle {
  border: 1px solid var(--deck-border);
  background: rgba(27, 91, 142, 0.45);
  color: var(--text-main);
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.82rem;
}

.deck-toggle {
  display: none;
}

@media (max-width: 860px) {
  .page-layout {
    --controls-dock-height: 58px;
  }

  .page-layout {
    grid-template-columns: 1fr;
    align-items: start;
    min-height: 100vh;
    min-height: 100dvh;
    padding-bottom: calc(var(--controls-dock-height) + env(safe-area-inset-bottom, 0px) + 10px);
  }

  .tank-stage,
  .tank-shell {
    width: 100%;
    height: calc(100vh - var(--controls-dock-height) - 24px);
    height: calc(100dvh - var(--controls-dock-height) - 24px);
    min-height: 360px;
  }

  .deck-toggle {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    border-bottom: 0;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom, 0px));
    min-height: var(--controls-dock-height);
    background: rgba(9, 21, 33, 0.95);
    backdrop-filter: blur(6px);
    z-index: 20;
  }

  .ui-deck {
    position: fixed;
    right: 14px;
    bottom: calc(var(--controls-dock-height) + env(safe-area-inset-bottom, 0px) + 8px);
    top: auto;
    width: min(320px, calc(100vw - 28px));
    height: auto;
    max-height: min(76vh, 560px);
    overflow-y: auto;
    transform: translateY(calc(100% + 24px));
    opacity: 0;
    pointer-events: none;
    transition: transform 170ms ease, opacity 170ms ease;
  }

  .ui-deck[data-open='true'] {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .about-seo-footer {
    margin-top: 34px;
    padding-bottom: calc(var(--controls-dock-height) + env(safe-area-inset-bottom, 0px) + 12px);
  }
}


.fish-inspector {
  display: grid;
  gap: 10px;
}

.inspector-species-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.inspector-species-tab {
  border: 1px solid var(--deck-border);
  background: rgba(20, 37, 54, 0.6);
  color: var(--text-soft);
  border-radius: 7px;
  padding: 5px 8px;
  font-size: 0.78rem;
  cursor: pointer;
  touch-action: manipulation;
}

.inspector-species-tab.active {
  color: var(--text-main);
  background: rgba(85, 148, 198, 0.28);
  border-color: rgba(140, 220, 255, 0.55);
}


.fish-list {
  display: grid;
  gap: 6px;
  max-height: 180px;
  overflow-y: auto;
}

.fish-row {
  border: 1px solid var(--deck-border);
  background: rgba(22, 41, 61, 0.55);
  color: var(--text-main);
  border-radius: 8px;
  padding: 6px 8px;
  text-align: left;
  cursor: pointer;
  font-size: 0.78rem;
}


.fish-row.fishRow--dead {
  opacity: 0.45;
}

.fish-row.selected {
  border-color: rgba(140, 220, 255, 0.82);
  background: rgba(56, 117, 167, 0.35);
}

.fish-row__name--pregnant {
  color: #2ecc71;
}


.fish-detail {
  border-top: 1px solid var(--deck-border);
  padding-top: 8px;
}

.fish-empty {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.tab-content[data-content='fish'] {
  overflow-y: auto;
}

.fish-inspector {
  grid-template-rows: auto minmax(160px, 1fr) auto;
  min-height: 0;
}

.fish-list {
  min-height: 120px;
  max-height: none;
  overflow-y: auto;
  padding-right: 2px;
}


.fish-detail-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin: 4px 0 8px;
}

.fish-detail-tab {
  border: 1px solid var(--deck-border);
  background: rgba(20, 37, 54, 0.6);
  color: var(--text-soft);
  border-radius: 7px;
  padding: 5px 8px;
  font-size: 0.78rem;
  cursor: pointer;
  touch-action: manipulation;
}

.fish-detail-tab.active {
  color: var(--text-main);
  background: rgba(85, 148, 198, 0.28);
  border-color: rgba(140, 220, 255, 0.55);
}

.fish-detail-pane {
  display: none;
}

.fish-detail-pane.active {
  display: block;
}

.status-line {
  margin: 6px 0 2px;
  font-size: 0.8rem;
}

.status--pregnant {
  color: #2ecc71;
  font-weight: 600;
}


.history-fish-link {
  border: 0;
  background: none;
  padding: 0;
  color: #9edfff;
  text-decoration: underline;
  cursor: pointer;
  font: inherit;
  touch-action: manipulation;
}

button {
  touch-action: manipulation;
}

.history-fish-link:hover {
  color: #c9efff;
}

.history-children-list {
  margin-top: 4px;
  display: grid;
  gap: 3px;
}

.history-child-item {
  font-size: 0.78rem;
  color: var(--text-soft);
  padding-left: 2px;
}

.fish-name-group input[type='text'] {
  border: 1px solid var(--deck-border);
  background: rgba(18, 34, 49, 0.65);
  color: var(--text-main);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 0.8rem;
  width: 100%;
  pointer-events: auto;
}


.button-row button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.filter-accordion {
  margin-top: 12px;
  border: 1px solid var(--deck-border);
  border-radius: 10px;
  background: rgba(20, 38, 56, 0.42);
}

.filter-accordion.is-dim {
  opacity: 0.58;
}

.filter-accordion-toggle {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--text-main);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 10px;
  cursor: pointer;
  font-size: 0.82rem;
}

.filter-accordion[data-open='true'] .filter-accordion-chevron {
  transform: rotate(180deg);
}

.filter-accordion-chevron {
  transition: transform 140ms ease;
}

.filter-accordion-content {
  border-top: 1px solid var(--deck-border);
  padding: 9px 10px 10px;
}

.filter-message {
  margin: 0 0 8px;
  color: var(--text-soft);
  font-size: 0.8rem;
  line-height: 1.35;
}

.species-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}

.species-row strong {
  font-size: 0.76rem;
  color: var(--text-soft);
}

.species-stepper {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: -4px 0 8px;
}

.species-stepper button {
  min-width: 24px;
  height: 24px;
  padding: 0;
  line-height: 1;
}

.species-stepper strong {
  min-width: 18px;
  text-align: center;
  color: var(--text-soft);
}

.progress-track {
  height: 8px;
  border-radius: 999px;
  background: rgba(119, 170, 211, 0.24);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #58ace8, #96dbff);
}

.dev-panel {
  margin-top: 10px;
  border: 1px dashed rgba(169, 206, 233, 0.25);
  border-radius: 8px;
  padding: 8px;
  background: rgba(20, 38, 56, 0.2);
}

.dev-panel__label {
  margin: 0 0 6px;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: rgba(214, 235, 249, 0.88);
}

.species-row.is-locked {
  opacity: 0.6;
}



.species-btn--ready {
  border-color: color-mix(in srgb, var(--species-ready-green) 58%, #cfeeff 42%);
  background: linear-gradient(180deg, rgba(57, 119, 84, 0.95), rgba(46, 100, 72, 0.95));
  color: #ebfff2;
}

.species-btn--ready:disabled {
  opacity: 0.72;
}