/* =========================================================
   FSSuite - landing page
   palette: navy #16234a / deep navy #0b1230 / orange #f57314
   ========================================================= */

:root {
  --navy:        #16234a;
  --navy-deep:   #0b1230;
  --navy-ink:    #0a1024;
  --orange:      #f57314;
  --orange-lt:   #ff8c2e;
  --cream:       #f6f1e6;
  --white:       #ffffff;

  --font: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP",
          "Yu Gothic", "Meiryo", system-ui, -apple-system, "Segoe UI", sans-serif;

  --ease-out: cubic-bezier(.16, .84, .32, 1);
  --ease-in:  cubic-bezier(.62, .02, .86, .34);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--navy-deep);
}

body {
  font-family: var(--font);
  color: var(--cream);
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }

button {
  font-family: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

#app {
  position: relative;
  min-height: 100svh;
  min-height: 100vh;
  overflow: hidden;
}

/* =========================================================
   MENU / STAGE
   ========================================================= */

.menu {
  position: relative;
  min-height: 100svh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 100svh;
  min-height: 100vh;
  overflow: hidden;

  background-image: url("images/hero_horse.png");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  background-color: var(--navy);

  transform-origin: var(--ox, 50%) var(--oy, 50%);
  transform: scale(1);
  transition: transform .62s var(--ease-in);
  will-change: transform;
}

/* 可読性のためのスクリム（上下） */
.stage::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to bottom,
      rgba(11,18,48,.72) 0%,
      rgba(11,18,48,.30) 22%,
      rgba(11,18,48,.08) 42%,
      rgba(11,18,48,.55) 72%,
      rgba(11,18,48,.88) 100%);
}

.stage.is-zooming {
  transform: scale(7);
}

/* =========================================================
   TITLE PANEL (斜めクリップ)
   ========================================================= */

.title-panel {
  position: relative;
  z-index: 3;
  padding: 0;
}

.title-panel__slab {
  position: absolute;
  inset: 0 -6% auto -6%;
  height: 100%;
  background: linear-gradient(180deg, rgba(10,16,36,.98) 0%, rgba(22,35,74,.9) 40%, rgba(29,47,96,0) 100%);
  -webkit-clip-path: polygon(0 0, 100% 0, 100% 62%, 0 100%);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 0 100%);
  box-shadow: 0 10px 26px rgba(0,0,0,.42);
}

.title-panel__slab::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--orange);
  -webkit-clip-path: polygon(0 100%, 100% 62%, 100% 68%, 0 106%);
  clip-path: polygon(0 100%, 100% 62%, 100% 68%, 0 106%);
}

.title-panel__inner {
  position: relative;
  padding: 20px 20px 34px;
}

.title-panel__logo {
  margin: 0;
  font-size: clamp(34px, 11vw, 62px);
  line-height: 1;
  letter-spacing: .005em;
  font-weight: 900;
  font-style: italic;
  text-shadow: 0 3px 0 rgba(0,0,0,.35);
}

.fss-accent { color: var(--orange); }
.logo-suite { color: var(--cream); }

.title-panel__tag {
  margin: 8px 0 0;
  font-size: clamp(12px, 3.6vw, 16px);
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1.2;
  color: var(--cream);
}

.title-panel__note {
  margin: 4px 0 0;
  font-size: clamp(10.5px, 3.1vw, 13px);
  color: rgba(246,241,230,.72);
}

/* =========================================================
   ICONS
   ========================================================= */

.icons {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.icon {
  position: absolute;
  width: 27vw;
  max-width: 124px;
  min-width: 82px;
  padding: 0;
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transform: translate(-50%, -50%);
  animation: float 5.4s ease-in-out infinite;
  animation-delay: var(--fx, 0s);
  transition: filter .25s var(--ease-out);
}

.icon__plate {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 24%;
  background: linear-gradient(160deg, rgba(246,241,230,.97), rgba(226,218,200,.92));
  border: 3px solid var(--navy-ink);
  box-shadow:
    0 10px 20px rgba(0,0,0,.45),
    inset 0 0 0 3px rgba(245,115,20,.35);
  transition: transform .22s var(--ease-out), box-shadow .22s var(--ease-out);
}

.icon__plate img {
  width: 76%;
  height: 76%;
  object-fit: contain;
  pointer-events: none;
}

.icon__label {
  font-size: clamp(10px, 2.9vw, 13px);
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--cream);
  background: rgba(10,16,36,.78);
  border: 1.5px solid rgba(245,115,20,.65);
  border-radius: 999px;
  padding: 3px 9px;
  white-space: nowrap;
  text-shadow: 0 1px 2px rgba(0,0,0,.8);
}

.icon:hover .icon__plate,
.icon:focus-visible .icon__plate {
  transform: translateY(-4px) scale(1.06);
  box-shadow:
    0 16px 26px rgba(0,0,0,.5),
    inset 0 0 0 3px rgba(245,115,20,.9);
}

.icon:focus-visible {
  outline: 3px solid var(--orange-lt);
  outline-offset: 6px;
  border-radius: 12px;
}

/* --- 配置（モバイル縦：上にタイトル、下半分に4つを千鳥） --- */
.icon--fsst { left: 26%; top: 38%; }
.icon--fssc { left: 74%; top: 48%; }
.icon--fssp { left: 26%; top: 60%; }
.icon--fssh { left: 74%; top: 70%; }

@keyframes float {
  0%, 100% { transform: translate(-50%, -50%) translateY(0); }
  50%      { transform: translate(-50%, -50%) translateY(-11px); }
}

@media (prefers-reduced-motion: reduce) {
  .icon { animation: none; }
  .stage { transition-duration: .01ms; }
}

.hint {
  position: absolute;
  left: 50%;
  bottom: 84px;
  transform: translateX(-50%);
  z-index: 2;
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: rgba(246,241,230,.62);
  white-space: nowrap;
  animation: blink 2.6s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: .35; }
  50%      { opacity: .95; }
}

/* =========================================================
   FOOTER
   ========================================================= */

.footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 4;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(10,16,36,.9);
  border-top: 2px solid var(--orange);
}

.footer__text {
  margin: 0 auto;
  max-width: 900px;
  font-size: 10.5px;
  line-height: 1.55;
  color: rgba(246,241,230,.72);
  text-align: center;
}

.footer__text a {
  color: var(--orange);
  text-decoration: none;
}

.footer__text a:hover,
.footer__text a:focus-visible {
  text-decoration: underline;
}

.footer__credit {
  margin: 6px auto 0;
  max-width: 900px;
  font-size: 10.5px;
  line-height: 1.55;
  color: rgba(246,241,230,.72);
  text-align: center;
}

.footer__credit a {
  color: var(--orange);
  text-decoration: none;
}

.footer__credit a:hover,
.footer__credit a:focus-visible {
  text-decoration: underline;
}

/* =========================================================
   BLACKOUT
   ========================================================= */

.blackout {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: #000;
  opacity: 0;
  pointer-events: none;
  transition: opacity .38s var(--ease-out);
}

.blackout.is-on {
  opacity: 1;
  pointer-events: auto;
}

/* =========================================================
   DETAIL PANEL
   ========================================================= */

.detail {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px calc(24px + env(safe-area-inset-bottom));
  background: radial-gradient(120% 80% at 50% 0%, #16234a 0%, #070c1c 72%, #000 100%);
  opacity: 0;
  visibility: hidden;
  transition: opacity .42s var(--ease-out), visibility .42s;
  overflow-y: auto;
}

.detail.is-open {
  opacity: 1;
  visibility: visible;
}

.detail__inner {
  width: 100%;
  max-width: 520px;
  text-align: center;
  transform: translateY(18px);
  transition: transform .5s var(--ease-out);
}

.detail.is-open .detail__inner {
  transform: translateY(0);
}

.detail__iconwrap {
  width: 108px;
  height: 108px;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  border-radius: 26%;
  background: linear-gradient(160deg, rgba(246,241,230,.97), rgba(226,218,200,.92));
  border: 3px solid var(--orange);
  box-shadow: 0 12px 26px rgba(0,0,0,.6);
}

.detail__icon {
  width: 76%;
  height: 76%;
  object-fit: contain;
}

.detail__name {
  margin: 0;
  font-size: clamp(24px, 7.4vw, 36px);
  font-weight: 800;
  font-style: italic;
  letter-spacing: .01em;
  color: var(--cream);
}

.detail__badge {
  display: inline-block;
  margin: 10px 0 0;
  padding: 3px 12px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  color: var(--navy-ink);
  background: var(--orange);
  border-radius: 999px;
}

.detail__badge[hidden] { display: none; }

.detail__desc {
  margin: 16px auto 0;
  max-width: 440px;
  font-size: clamp(13px, 3.8vw, 15px);
  line-height: 1.85;
  color: rgba(246,241,230,.88);
  text-align: left;
}

.detail__link {
  display: inline-block;
  margin-top: 26px;
  padding: 13px 34px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .05em;
  color: var(--navy-ink);
  text-decoration: none;
  background: linear-gradient(135deg, var(--orange-lt), var(--orange));
  border: 2px solid var(--navy-ink);
  border-radius: 999px;
  box-shadow: 0 8px 18px rgba(245,115,20,.3);
  transition: transform .18s var(--ease-out), box-shadow .18s var(--ease-out);
}

.detail__link:hover,
.detail__link:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(245,115,20,.45);
}

.detail__back {
  display: block;
  margin: 20px auto 0;
  padding: 9px 26px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: rgba(246,241,230,.82);
  background: rgba(255,255,255,.06);
  border: 1.5px solid rgba(246,241,230,.35);
  border-radius: 999px;
  transition: background .18s var(--ease-out), color .18s var(--ease-out);
}

.detail__back:hover,
.detail__back:focus-visible {
  background: rgba(255,255,255,.14);
  color: var(--white);
}

/* =========================================================
   LANG TOGGLE
   ========================================================= */

.lang-toggle {
  position: fixed;
  top: calc(10px + env(safe-area-inset-top));
  right: 12px;
  z-index: 70;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  color: rgba(246,241,230,.6);
  background: rgba(10,16,36,.82);
  border: 1.5px solid rgba(245,115,20,.7);
  border-radius: 999px;
  backdrop-filter: blur(3px);
}

.lang-toggle__opt.is-active { color: var(--orange-lt); }
.lang-toggle__sep { color: rgba(246,241,230,.35); }

/* =========================================================
   WIDE SCREEN
   ========================================================= */

@media (min-width: 720px) {

  .title-panel__inner {
    padding: 34px 44px 56px;
    max-width: 780px;
  }

  .icon {
    width: 15vw;
    max-width: 150px;
  }

  /* 馬を中央に残し、左右の余白へ 2 + 2 */
  .icon--fsst { left: 15%; top: 32%; }
  .icon--fssc { left: 15%; top: 64%; }
  .icon--fssp { left: 85%; top: 32%; }
  .icon--fssh { left: 85%; top: 64%; }

  .hint { bottom: 70px; font-size: 12.5px; }

  .footer__text { font-size: 11.5px; }
}

@media (min-width: 1200px) {
  .icon--fsst { left: 19%; top: 30%; }
  .icon--fssc { left: 19%; top: 62%; }
  .icon--fssp { left: 81%; top: 30%; }
  .icon--fssh { left: 81%; top: 62%; }
}

/* 低い横画面 */
@media (max-height: 520px) and (orientation: landscape) {
  .icon { width: 13vw; min-width: 64px; }
  .icon--fsst { left: 13%; top: 34%; }
  .icon--fssc { left: 13%; top: 68%; }
  .icon--fssp { left: 87%; top: 34%; }
  .icon--fssh { left: 87%; top: 68%; }
  .hint { display: none; }
  .title-panel__inner { padding: 14px 20px 26px; }
}