/*
 * Cascade contract
 * - base: shared foundation, opening sequence, and component structure
 * - story: narrative theme and scene-specific overrides in story.css
 *
 * Keep this order explicit so stylesheet link order cannot silently change
 * which layer wins as the project grows. Keep new rules inside one of these
 * layers because unlayered author rules override normal layered rules.
 */
@layer base, story;

@layer base {
:root {
  --bg: #080b10;
  --bg-2: #10151c;
  --panel: #121922;
  --panel-2: #17212c;
  --line: #31475a;
  --line-hot: #7ad7ff;
  --text: #edf7ff;
  --muted: #9fb2c2;
  --red: #ff4f5e;
  --blue: #58a6ff;
  --teal: #50e0c2;
  --gold: #f0c766;
  --orange: #ff9c55;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 12%, rgba(122, 215, 255, 0.12), transparent 30rem),
    radial-gradient(circle at 86% 24%, rgba(255, 79, 94, 0.09), transparent 28rem),
    linear-gradient(180deg, #06080c, var(--bg) 34%, #0b1017);
  color: var(--text);
  font-family: "Segoe UI", "Noto Sans KR", Arial, sans-serif;
  letter-spacing: 0;
}

body.opening-active {
  overflow: hidden;
}

button {
  font: inherit;
}

.opening-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 24px;
  background: #020407;
  color: var(--text);
  transition: opacity 720ms ease, visibility 720ms ease;
}

.opening-screen.is-dismissed {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.opening-screen.is-main-ready {
  background: transparent;
}

.opening-screen.is-main-ready .opening-screen__grid {
  opacity: 0;
}

.opening-screen.is-main-ready::before,
.opening-screen.is-main-ready::after {
  opacity: 0;
}

.opening-screen__grid {
  position: absolute;
  inset: 0;
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(122, 215, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 215, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 50% 50%, rgba(0, 0, 0, 0.86), transparent 62%);
}

.opening-screen::before,
.opening-screen::after {
  content: "";
  position: absolute;
  inset: auto 8vw 16vh;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(122, 215, 255, 0.42), transparent);
  opacity: 0.28;
}

.opening-screen::after {
  inset: 16vh 12vw auto;
  background: linear-gradient(90deg, transparent, rgba(255, 79, 94, 0.25), transparent);
}

.opening-screen__content {
  position: relative;
  z-index: 1;
  width: min(900px, 100%);
  text-align: center;
}

.opening-screen__content--notice {
  opacity: 0;
  transform: translateY(10px);
}

.opening-screen.is-notice-visible .opening-screen__content--notice {
  animation: openingNoticeIn 900ms ease forwards;
}

.opening-screen.is-notice-fading .opening-screen__content--notice {
  animation: openingNoticeOut 720ms ease forwards;
}

.opening-screen__content--choices {
  display: flex;
  justify-content: center;
  gap: 14px;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
}

.opening-screen.is-choices-visible .opening-screen__content--choices {
  animation: openingChoicesIn 760ms ease forwards;
  pointer-events: auto;
}

.opening-screen.is-choices-fading .opening-screen__content--choices {
  animation: openingChoicesOut 580ms ease forwards;
  pointer-events: none;
}

.opening-screen__icon {
  margin-bottom: 24px;
  color: #c7d0da;
  font-size: clamp(2.1rem, 5vw, 3.3rem);
  filter: drop-shadow(0 0 18px rgba(122, 215, 255, 0.2));
}

.opening-screen h2 {
  margin: 0;
  color: #d8dee7;
  font-size: clamp(1.8rem, 4.2vw, 3.7rem);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 0;
  text-wrap: balance;
  word-break: keep-all;
}

.opening-button {
  position: relative;
  min-width: 260px;
  min-height: 72px;
  padding: 15px 24px 14px;
  border: 1px solid rgba(122, 215, 255, 0.3);
  clip-path: polygon(16px 0, 100% 0, calc(100% - 16px) 100%, 0 100%);
  color: var(--text);
  background:
    linear-gradient(135deg, rgba(122, 215, 255, 0.13), rgba(8, 14, 20, 0.95) 45%),
    linear-gradient(180deg, #151e28, #080d13);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.42), inset 0 -3px 0 rgba(122, 215, 255, 0.12);
  cursor: pointer;
  font-weight: 800;
  line-height: 1.25;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.opening-button::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid rgba(122, 215, 255, 0.12);
  pointer-events: none;
}

.opening-button span {
  display: block;
  margin-bottom: 6px;
  color: var(--line-hot);
  font-size: 0.74rem;
  letter-spacing: 0;
}

.opening-button:hover,
.opening-button:focus-visible {
  border-color: var(--line-hot);
  box-shadow: 0 0 28px rgba(122, 215, 255, 0.18), inset 0 -3px 0 rgba(122, 215, 255, 0.3);
  transform: translateY(-2px);
  outline: none;
}

.opening-button:active {
  transform: translateY(1px);
}

.opening-button--sound {
  border-color: rgba(80, 224, 194, 0.45);
}

.opening-button--sound span {
  color: var(--teal);
}

.opening-button--silent {
  border-color: rgba(159, 178, 194, 0.32);
  color: #d4dde7;
  background:
    linear-gradient(135deg, rgba(159, 178, 194, 0.09), rgba(8, 14, 20, 0.96) 45%),
    linear-gradient(180deg, #131a22, #070b10);
}

.opening-button--silent span {
  color: #aeb9c4;
}

.opening-hangar {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.opening-hangar {
  z-index: 3;
  overflow: hidden;
}

.opening-hangar__door {
  position: absolute;
  top: 0;
  width: calc(50% + 2px);
  height: 100%;
  opacity: 0;
  background:
    linear-gradient(90deg, rgba(122, 215, 255, 0.08), transparent 16% 84%, rgba(122, 215, 255, 0.08)),
    repeating-linear-gradient(0deg, rgba(237, 247, 255, 0.035) 0 1px, transparent 1px 78px),
    repeating-linear-gradient(90deg, rgba(237, 247, 255, 0.028) 0 1px, transparent 1px 110px),
    linear-gradient(135deg, #111820, #05080d 48%, #121922);
  box-shadow: inset 0 0 80px rgba(0, 0, 0, 0.68);
  backface-visibility: hidden;
  will-change: transform;
}

.opening-hangar__door::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.32;
  background:
    linear-gradient(120deg, transparent 0 42%, rgba(240, 199, 102, 0.12) 42% 45%, transparent 45% 54%, rgba(240, 199, 102, 0.12) 54% 57%, transparent 57%),
    radial-gradient(circle at 50% 50%, transparent, rgba(0, 0, 0, 0.46) 72%);
}

.opening-hangar__door--left {
  left: 0;
  transform: translateX(-105%);
  border-right: 1px solid rgba(122, 215, 255, 0.22);
}

.opening-hangar__door--right {
  right: 0;
  transform: translateX(105%);
  border-left: 1px solid rgba(122, 215, 255, 0.22);
}

.opening-hangar__seam {
  position: absolute;
  left: 50%;
  top: 0;
  width: 2px;
  height: 100%;
  opacity: 0;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, rgba(122, 215, 255, 0.9), transparent);
  box-shadow: 0 0 28px rgba(122, 215, 255, 0.5);
}

.opening-screen.is-hangar-closing {
  animation: hangarImpact 300ms cubic-bezier(0.22, 0.7, 0.3, 1) 980ms;
}

.opening-screen.is-hangar-closing .opening-hangar__door {
  opacity: 1;
}

.opening-screen.is-hangar-closing .opening-hangar__door--left {
  animation: hangarCloseLeft 1150ms linear forwards;
}

.opening-screen.is-hangar-closing .opening-hangar__door--right {
  animation: hangarCloseRight 1150ms linear forwards;
}

.opening-screen.is-hangar-closed .opening-hangar__door--left {
  opacity: 1;
  transform: translateX(0);
}

.opening-screen.is-hangar-closed .opening-hangar__door--right {
  opacity: 1;
  transform: translateX(0);
}

.opening-screen.is-hangar-closed .opening-hangar__seam {
  animation: hangarSeamFlash 450ms ease-out forwards;
}

.opening-screen.is-hangar-opening .opening-hangar__door--left {
  opacity: 1;
  animation: hangarOpenLeft 900ms linear forwards;
}

.opening-screen.is-hangar-opening .opening-hangar__door--right {
  opacity: 1;
  animation: hangarOpenRight 900ms linear forwards;
}

.opening-screen.is-hangar-opening .opening-hangar__seam {
  animation: hangarSeamOpen 380ms ease-out forwards;
}

.scanline {
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(122, 215, 255, 0.055), transparent);
  height: 18vh;
  animation: scan 6.5s linear infinite;
}

.hero {
  position: relative;
  min-height: 92vh;
  overflow: hidden;
  border-bottom: 1px solid rgba(122, 215, 255, 0.22);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(110deg, rgba(8, 11, 16, 0.88) 0%, rgba(8, 11, 16, 0.72) 46%, rgba(8, 11, 16, 0.9) 100%),
    repeating-linear-gradient(90deg, transparent 0 36px, rgba(122, 215, 255, 0.045) 37px 38px);
}

.hero__grid,
.map-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(122, 215, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122, 215, 255, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent);
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(18px, 4vw, 56px);
  color: var(--muted);
}

.brand,
.topbar__status {
  display: flex;
  align-items: center;
  gap: 10px;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.brand__mark,
.status-dot {
  width: 12px;
  height: 12px;
  display: inline-block;
  background: var(--line-hot);
  box-shadow: 0 0 18px var(--line-hot);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.status-dot {
  border-radius: 50%;
  clip-path: none;
  background: var(--teal);
  animation: blink 1.8s infinite;
}

.hero__content {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 14vh 0 9vh;
}

.eyebrow,
.panel-label {
  color: var(--line-hot);
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero h1 {
  margin: 12px 0 0;
  max-width: 940px;
  font-size: clamp(3.2rem, 9vw, 8.4rem);
  line-height: 0.86;
  letter-spacing: 0;
  text-shadow: 0 0 30px rgba(122, 215, 255, 0.18);
}

.hero__subtitle {
  margin: 22px 0 0;
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  color: #c9eefe;
}

.hero__brief {
  max-width: 760px;
  color: var(--muted);
  line-height: 1.8;
  font-size: 1.03rem;
}

.text-panel,
.faction-card,
.facility,
.region-list article,
.team-brief,
.pilot-card,
.pilot-detail,
.enemy-card,
.overmind-panel,
.map-info,
.sortie-grid article,
.gallery-card {
  position: relative;
  background: linear-gradient(145deg, rgba(23, 33, 44, 0.94), rgba(12, 18, 25, 0.94));
  border: 1px solid rgba(122, 215, 255, 0.22);
  box-shadow: var(--shadow);
}

.spec span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.database {
  padding: 64px clamp(14px, 4vw, 56px);
}

.panel-shell {
  position: relative;
  overflow: hidden;
  width: min(1320px, 100%);
  margin: 0 auto;
  padding: clamp(16px, 2.2vw, 28px);
  background: rgba(8, 12, 18, 0.72);
  border: 1px solid rgba(122, 215, 255, 0.18);
  box-shadow: var(--shadow);
}

.section-heading h2 {
  margin: 6px 0 22px;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
}

.main-tabs,
.sub-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
}

.main-tab,
.sub-tab {
  border: 1px solid rgba(122, 215, 255, 0.26);
  color: var(--muted);
  background: linear-gradient(180deg, #151e28, #0d131a);
  padding: 12px 18px;
  min-width: max-content;
  cursor: pointer;
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

.main-tab.is-active,
.sub-tab.is-active {
  color: var(--text);
  border-color: var(--line-hot);
  box-shadow: inset 0 -3px 0 var(--line-hot), 0 0 24px rgba(122, 215, 255, 0.14);
}

.tab-panel,
.sub-panel {
  display: none;
}

.tab-panel.is-active,
.sub-panel.is-active {
  display: block;
  animation: boot 260ms ease-out both;
}

.tab-panel {
  padding-top: 24px;
}

.sub-tabs {
  margin-bottom: 18px;
}

.content-grid,
.map-layout,
.character-layout,
.versus-layout {
  display: grid;
  gap: 18px;
}

.content-grid {
  grid-template-columns: minmax(0, 1fr) 320px;
}

.text-panel,
.overmind-panel,
.map-info,
.pilot-detail {
  padding: clamp(18px, 2.2vw, 28px);
}

.text-panel h3,
.faction-card h3,
.overmind-panel h3,
.map-info h3,
.pilot-detail h3 {
  margin: 8px 0 12px;
  font-size: 1.7rem;
}

.text-panel p,
.faction-card p,
.faction-card li,
.overmind-panel p,
.map-info p,
.pilot-detail p,
.region-list p,
.sortie-grid p {
  color: var(--muted);
  line-height: 1.78;
}

.spec-stack,
.spec-row {
  display: grid;
  gap: 12px;
}

.spec-row {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 14px;
}

.spec {
  padding: 18px;
  background: var(--panel);
  border: 1px solid rgba(122, 215, 255, 0.18);
}

.spec strong {
  display: block;
  margin-top: 8px;
}

.versus-layout {
  grid-template-columns: minmax(0, 1fr) 150px minmax(0, 1fr);
  align-items: stretch;
}

.faction-card {
  padding: 24px;
}

.faction-card.human {
  border-color: rgba(88, 166, 255, 0.45);
}

.faction-card.scalvir,
.danger {
  border-color: rgba(255, 79, 94, 0.5);
  color: var(--red);
}

.versus-core {
  display: grid;
  place-items: center;
  min-height: 260px;
  color: var(--gold);
  border: 1px dashed rgba(240, 199, 102, 0.5);
  text-align: center;
  font-weight: 800;
}

.facility-grid,
.region-list,
.sortie-grid,
.enemy-grid,
.gallery-grid {
  display: grid;
  gap: 14px;
}

.facility-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 16px;
}

.facility {
  min-height: 130px;
  padding: 18px;
  font-weight: 800;
}

.facility span {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-weight: 400;
  line-height: 1.55;
}

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

.region-list article,
.sortie-grid article {
  padding: 20px;
}

.character-layout {
  grid-template-columns: 280px minmax(320px, 0.9fr) minmax(360px, 1.1fr);
  align-items: start;
}

.team-brief {
  padding: 20px;
  min-height: 310px;
}

.team-brief h3 {
  margin: 8px 0 12px;
}

.team-brief p {
  color: var(--muted);
  line-height: 1.7;
}

.pilot-grid {
  display: grid;
  gap: 12px;
}

.pilot-card {
  width: 100%;
  min-height: 132px;
  padding: 16px;
  text-align: left;
  color: var(--text);
  cursor: pointer;
}

.pilot-card.is-active {
  border-color: var(--line-hot);
  transform: translateX(6px);
}

.pilot-card span,
.enemy-card span,
.gallery-card span {
  color: var(--muted);
  font-size: 0.84rem;
}

.pilot-card strong {
  display: block;
  margin: 6px 0;
  font-size: 1.2rem;
}

.pilot-detail {
  min-height: 420px;
}

.loadout {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 16px;
}

.loadout div {
  padding: 14px;
  background: rgba(122, 215, 255, 0.08);
  border: 1px solid rgba(122, 215, 255, 0.18);
}

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

.enemy-card {
  min-height: 230px;
  padding: 22px;
}

.enemy-card h3 {
  margin: 8px 0 10px;
}

.enemy-card p {
  color: var(--muted);
  line-height: 1.7;
}

.threat-meter {
  height: 16px;
  margin: 22px 0 12px;
  background: rgba(255, 79, 94, 0.12);
  border: 1px solid rgba(255, 79, 94, 0.42);
}

.threat-meter span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--orange), var(--red));
}

.map-layout {
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.7fr);
}

.tactical-map {
  position: relative;
  min-height: 620px;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 48%, rgba(80, 224, 194, 0.16), transparent 11rem),
    linear-gradient(135deg, #111923, #070b10);
  border: 1px solid rgba(122, 215, 255, 0.22);
}

.tactical-map::after {
  content: "TACTICAL MAP IMAGE SLOT";
  position: absolute;
  left: 24px;
  bottom: 24px;
  color: rgba(237, 247, 255, 0.42);
  font-weight: 800;
}

.map-hotspot {
  position: absolute;
  width: 132px;
  min-height: 42px;
  border: 1px solid rgba(122, 215, 255, 0.54);
  background: rgba(8, 14, 20, 0.86);
  color: var(--text);
  cursor: pointer;
}

.map-hotspot::before {
  content: "";
  position: absolute;
  inset: -12px;
  border: 1px dashed rgba(122, 215, 255, 0.25);
}

.map-hotspot.is-active {
  border-color: var(--gold);
  box-shadow: 0 0 22px rgba(240, 199, 102, 0.22);
}

.academy { left: 46%; top: 45%; }
.west { left: 15%; top: 34%; }
.east { right: 13%; top: 34%; }
.central { left: 43%; bottom: 18%; }

.info-box {
  white-space: pre-wrap;
  margin: 0;
  padding: 22px;
  color: #c8fff4;
  background: #07100f;
  border: 1px solid rgba(80, 224, 194, 0.35);
  line-height: 1.8;
  overflow-x: auto;
}

.bond-list {
  display: grid;
  gap: 10px;
}

.bond-list div {
  display: grid;
  grid-template-columns: 100px 1fr;
  align-items: center;
  padding: 14px;
  background: linear-gradient(90deg, rgba(122, 215, 255, 0.12), rgba(255, 79, 94, 0.08));
  border: 1px solid rgba(122, 215, 255, 0.18);
}

.note {
  color: var(--muted);
}

.system-intro {
  margin-bottom: 14px;
}

.sortie-grid article span {
  color: var(--line-hot);
  font-weight: 900;
}

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

.gallery-card {
  min-height: 190px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  cursor: pointer;
  overflow: hidden;
}

.gallery-card::before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(122, 215, 255, 0.2);
  background:
    linear-gradient(135deg, transparent 45%, rgba(122, 215, 255, 0.12) 46% 54%, transparent 55%),
    radial-gradient(circle at 50% 40%, rgba(122, 215, 255, 0.12), transparent 45%);
}

.gallery-card strong,
.gallery-card span {
  position: relative;
  z-index: 1;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  place-items: center;
  background: rgba(0, 0, 0, 0.76);
}

.modal.is-open {
  display: grid;
}

.modal__content {
  width: min(720px, calc(100% - 32px));
  min-height: 420px;
  padding: 30px;
  background: var(--panel);
  border: 1px solid var(--line-hot);
  box-shadow: var(--shadow);
}

.modal__close {
  position: fixed;
  right: 24px;
  top: 20px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-hot);
  background: #081019;
  color: var(--text);
  font-size: 1.8rem;
  cursor: pointer;
}

@keyframes scan {
  from { transform: translateY(-25vh); }
  to { transform: translateY(120vh); }
}

@keyframes blink {
  50% { opacity: 0.35; }
}

@keyframes boot {
  from {
    opacity: 0;
    transform: translateY(8px);
    clip-path: inset(0 0 100% 0);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    clip-path: inset(0 0 0 0);
  }
}

@keyframes openingNoticeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes openingNoticeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-8px);
  }
}

@keyframes openingChoicesIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes openingChoicesOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(10px);
  }
}

@keyframes hangarCloseLeft {
  0% { transform: translateX(-105%); }
  18% { transform: translateX(-22%); }
  32% { transform: translateX(-13%); }
  58% { transform: translateX(-7%); }
  82% { transform: translateX(-2.8%); }
  96% { transform: translateX(0.2%); }
  100% { transform: translateX(0); }
}

@keyframes hangarCloseRight {
  0% { transform: translateX(105%); }
  18% { transform: translateX(22%); }
  32% { transform: translateX(13%); }
  58% { transform: translateX(7%); }
  82% { transform: translateX(2.8%); }
  96% { transform: translateX(-0.2%); }
  100% { transform: translateX(0); }
}

@keyframes hangarOpenLeft {
  0% { transform: translateX(0); }
  20% { transform: translateX(-1%); }
  40% { transform: translateX(-5%); }
  82% { transform: translateX(-30%); }
  100% { transform: translateX(-100%); }
}

@keyframes hangarOpenRight {
  0% { transform: translateX(0); }
  20% { transform: translateX(1%); }
  40% { transform: translateX(5%); }
  82% { transform: translateX(30%); }
  100% { transform: translateX(100%); }
}

@keyframes hangarSeamFlash {
  0% { opacity: 0; transform: translateX(-50%) scaleY(0.18); }
  18% { opacity: 1; transform: translateX(-50%) scaleY(1); }
  52% { opacity: 0.78; transform: translateX(-50%) scaleY(1); }
  100% { opacity: 0.28; transform: translateX(-50%) scaleY(1); }
}

@keyframes hangarSeamOpen {
  0% { opacity: 0.52; width: 2px; }
  18% { opacity: 1; width: 4px; }
  62% { opacity: 0.22; width: 24px; }
  100% { opacity: 0; width: 64px; }
}

@keyframes hangarImpact {
  0%, 100% { transform: translateX(0); }
  18% { transform: translateX(-3px); }
  38% { transform: translateX(2px); }
  60% { transform: translateX(-1.2px); }
  80% { transform: translateX(0.6px); }
}

@media (max-width: 1000px) {
  .content-grid,
  .versus-layout,
  .character-layout,
  .map-layout,
  .spec-row {
    grid-template-columns: 1fr;
  }

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

  .region-list,
  .sortie-grid,
  .enemy-grid {
    grid-template-columns: 1fr;
  }

  .versus-core {
    min-height: 90px;
  }
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    min-height: auto;
  }

  .facility-grid,
  .gallery-grid,
  .loadout {
    grid-template-columns: 1fr;
  }

  .tactical-map {
    min-height: 520px;
  }

  .map-hotspot {
    width: 118px;
    font-size: 0.86rem;
  }

  .academy { left: 34%; top: 43%; }
  .west { left: 6%; top: 30%; }
  .east { right: 5%; top: 30%; }
  .central { left: 32%; bottom: 18%; }

  .opening-screen__content--choices {
    flex-direction: column;
    align-items: stretch;
  }

  .opening-button {
    width: 100%;
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    scroll-behavior: auto !important;
  }

  .opening-screen__content--notice,
  .opening-screen.is-choices-visible .opening-screen__content--choices {
    opacity: 1;
    transform: none;
  }

  .opening-screen.is-choices-visible .opening-screen__content--notice {
    display: none;
  }

  .opening-screen.is-choices-fading .opening-screen__content--choices {
    opacity: 0;
  }
}
}