/* ============================================================
   うたかた館 — 淡い光の霧のギャラリー
   方向性: Soft-organic ／ 支配色 #F6F4F9 ＋ アクセント #C4798F
   ============================================================ */
:root {
  --color-bg: #F6F4F9;
  --color-mist-1: #ECE7F4;
  --color-mist-2: #E3EAF2;
  --color-ink: #4C4658;
  --color-ink-soft: #837C92;
  --color-accent: #C4798F;
  --color-accent-deep: #A65C74;
  --color-card: #FFFFFF;
  --font-display: "Shippori Mincho B1", "Hiragino Mincho ProN", serif;
  --font-body: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", sans-serif;
  --text-base: clamp(0.95rem, 0.9rem + 0.3vw, 1.05rem);
  --space-section: clamp(4.5rem, 3rem + 6vw, 9rem);
  --radius: 14px;
  --duration: 400ms;
  --shadow-soft: 0 10px 40px rgba(90, 80, 120, 0.14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.9;
  color: var(--color-ink);
  background:
    radial-gradient(90rem 60rem at 85% -10%, var(--color-mist-2), transparent 60%),
    radial-gradient(80rem 50rem at -10% 30%, var(--color-mist-1), transparent 55%),
    var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent-deep); text-decoration-color: rgba(196, 121, 143, 0.4); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 1.4rem; }
.wrap--narrow { max-width: 640px; }

:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: 4px; }

/* ===== ヘッダー（ステージに浮かせる） ===== */
.site-head {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 5;
  padding: 1.6rem 1.8rem;
  pointer-events: none;
}
.site-head__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: 0.35em;
  /* 後ろを作品が通っても読めるように、霧のグローをまとわせる */
  text-shadow: 0 0 6px rgba(246, 244, 249, 0.95), 0 0 18px rgba(246, 244, 249, 0.9);
}
.site-head__sub {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  color: var(--color-ink-soft);
  margin-top: 0.4rem;
}

/* ===== 出会いの層 ===== */
.stage {
  position: relative;
  height: 100svh;
  min-height: 540px;
  overflow: hidden;
}
#stage {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  cursor: default;
  touch-action: pan-y;
}
#stage:focus-visible { outline-offset: -3px; }

.stage__words { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.stage__words span {
  position: absolute;
  font-family: var(--font-display);
  color: rgba(131, 124, 146, 0.55);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  white-space: nowrap;
  will-change: transform, opacity;
}

.stage__intro {
  position: absolute;
  left: clamp(1.4rem, 6vw, 6rem);
  bottom: clamp(5.5rem, 16vh, 9.5rem);
  z-index: 4;
  pointer-events: none;
  transition: opacity 1.2s ease-out;
}
.stage__intro.is-dim { opacity: 0; }
.stage__tagline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 1.2rem + 3.4vw, 3.4rem);
  line-height: 1.55;
  letter-spacing: 0.12em;
  text-shadow: 0 0 24px rgba(246, 244, 249, 0.9);
}
.stage__lead {
  margin-top: 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(0.85rem, 0.78rem + 0.4vw, 1rem);
  letter-spacing: 0.16em;
  color: var(--color-ink-soft);
  text-shadow: 0 0 16px rgba(246, 244, 249, 0.9);
}

.stage__hint {
  position: absolute;
  left: 50%;
  bottom: 1.1rem;
  transform: translateX(-50%);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--color-ink-soft);
  z-index: 4;
  pointer-events: none;
  transition: opacity 0.8s;
}
.stage__hint.is-dim { opacity: 0; }

.stage__actions {
  position: absolute;
  right: 1.2rem;
  bottom: 1rem;
  z-index: 4;
  display: flex;
  gap: 0.6rem;
}

/* ===== ボタン ===== */
.ghost-btn {
  font-family: var(--font-body);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--color-ink-soft);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(131, 124, 146, 0.3);
  border-radius: 999px;
  padding: 0.5rem 1.1rem;
  cursor: pointer;
  transition: color var(--duration), border-color var(--duration), background var(--duration);
}
.ghost-btn:hover { color: var(--color-accent-deep); border-color: var(--color-accent); background: rgba(255, 255, 255, 0.9); }

.solid-btn {
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: 999px;
  padding: 0.8rem 2.1rem;
  cursor: pointer;
  min-height: 44px;
  transition: background var(--duration), transform var(--duration);
}
.solid-btn:hover { background: var(--color-accent-deep); }
.solid-btn:active { transform: scale(0.97); }
.solid-btn:disabled { background: #C9C4D2; cursor: default; }

/* ===== この場所について ===== */
.about { padding: var(--space-section) 0; }
.about p + p { margin-top: 1.6em; }
.sec-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.4rem, 1.1rem + 1.4vw, 2rem);
  letter-spacing: 0.2em;
  margin-bottom: 2.2rem;
  position: relative;
  padding-bottom: 1rem;
}
.sec-title::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 3.2em; height: 1px;
  background: linear-gradient(to right, var(--color-accent), transparent);
}
.sec-title__ruby {
  font-size: 0.55em;
  color: var(--color-ink-soft);
  letter-spacing: 0.3em;
  margin-left: 1em;
}
.about__credo {
  font-family: var(--font-display);
  font-size: 1.15em;
  letter-spacing: 0.18em;
  color: var(--color-accent-deep);
  padding-left: 1.2em;
  border-left: 2px solid rgba(196, 121, 143, 0.45);
}
.about__note {
  font-size: 0.88em;
  color: var(--color-ink-soft);
  background: rgba(255, 255, 255, 0.55);
  border-radius: var(--radius);
  padding: 1.2em 1.5em;
}

/* ===== お問い合わせ ===== */
.contact { padding: 0 0 var(--space-section); }
.contact__lead { color: var(--color-ink-soft); margin-bottom: 2rem; }
.form { display: grid; gap: 1.2rem; }
.field { display: grid; gap: 0.45rem; }
.field > span { font-size: 0.8rem; letter-spacing: 0.12em; color: var(--color-ink-soft); }
.field--half { max-width: 260px; }
.req {
  font-style: normal;
  font-size: 0.65rem;
  color: var(--color-accent-deep);
  border: 1px solid currentColor;
  border-radius: 4px;
  padding: 0 0.35em;
  margin-left: 0.6em;
  vertical-align: 1px;
}
.field input, .field select, .field textarea {
  font: inherit;
  color: var(--color-ink);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(131, 124, 146, 0.35);
  border-radius: 10px;
  padding: 0.65rem 0.9rem;
  min-height: 44px;
}
.field textarea { resize: vertical; min-height: 6em; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  border-color: transparent;
}
.field__hint { font-size: 0.8rem; color: var(--color-accent-deep); }
.form__privacy { font-size: 0.78rem; color: var(--color-ink-soft); }
.gotcha { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ===== フッター ===== */
.footer {
  background: linear-gradient(to bottom, transparent, rgba(236, 231, 244, 0.7));
  border-top: 1px solid rgba(131, 124, 146, 0.18);
  padding: 3.5rem 0 2.5rem;
  text-align: center;
}
.footer__brand {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.22em;
  font-size: 1.05rem;
}
.footer__brand-ja { display: block; font-family: var(--font-body); font-size: 0.7rem; color: var(--color-ink-soft); letter-spacing: 0.2em; margin-top: 0.5rem; }
.footer__tagline { font-size: 0.75rem; color: var(--color-ink-soft); letter-spacing: 0.16em; margin-top: 0.8rem; }
.footer__nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem 1.6rem; margin-top: 1.6rem; }
.footer__nav a { font-size: 0.8rem; letter-spacing: 0.1em; color: var(--color-ink-soft); text-decoration: none; padding: 0.4rem 0; min-height: 44px; display: inline-flex; align-items: center; }
.footer__nav a:hover { color: var(--color-accent-deep); }
.footer__nav--sister a { color: var(--color-ink); }
.footer__copy { font-size: 0.72rem; color: var(--color-ink-soft); margin-top: 2rem; letter-spacing: 0.12em; }

/* ===== フローティング：みんなへ ===== */
.words-fab {
  position: fixed;
  left: 1.1rem;
  bottom: 1.1rem;
  z-index: 40;
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--color-ink);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(131, 124, 146, 0.3);
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  min-height: 44px;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: transform var(--duration), border-color var(--duration);
}
.words-fab:hover { transform: translateY(-2px); border-color: var(--color-accent); }

/* ===== モーダル ===== */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 1rem; }
.modal[hidden] { display: none; }
.modal__backdrop {
  position: absolute; inset: 0;
  background: rgba(246, 244, 249, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.modal__panel {
  position: relative;
  background: var(--color-card);
  border-radius: calc(var(--radius) + 6px);
  box-shadow: 0 24px 80px rgba(90, 80, 120, 0.28);
  width: min(920px, 100%);
  max-height: min(88svh, 100%);
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1fr;
  animation: modal-in 420ms cubic-bezier(0.16, 1, 0.3, 1);
}
.modal__panel--slim { width: min(560px, 100%); }
@keyframes modal-in {
  from { opacity: 0; transform: translateY(14px) scale(0.985); }
  to { opacity: 1; transform: none; }
}
.modal__close {
  position: absolute;
  top: 0.7rem; right: 0.7rem;
  z-index: 2;
  width: 44px; height: 44px;
  font-size: 1.3rem;
  color: var(--color-ink-soft);
  background: rgba(255, 255, 255, 0.85);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: color var(--duration);
}
.modal__close:hover { color: var(--color-accent-deep); }
.modal__media {
  background:
    radial-gradient(40rem 30rem at 70% 20%, var(--color-mist-2), transparent 70%),
    var(--color-mist-1);
  display: grid;
  place-items: center;
  padding: 2rem;
}
.modal__media img {
  max-height: 46svh;
  width: auto;
  max-width: 100%;
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}
.modal__info { padding: 1.8rem 1.7rem 2rem; }
.modal__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  margin-bottom: 1.2rem;
}
.modal__lead { font-size: 0.86rem; color: var(--color-ink-soft); margin-bottom: 1.4rem; }
.modal__oimukae { margin-top: 1.6rem; font-size: 0.82rem; }

.heart-row { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.6rem; }
.heart-btn {
  font-family: var(--font-body);
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  color: var(--color-accent-deep);
  background: rgba(196, 121, 143, 0.1);
  border: 1px solid rgba(196, 121, 143, 0.5);
  border-radius: 999px;
  padding: 0.65rem 1.4rem;
  min-height: 44px;
  cursor: pointer;
  transition: background var(--duration), transform 200ms ease-out;
}
.heart-btn__mark { margin-right: 0.5em; }
.heart-btn:hover { background: rgba(196, 121, 143, 0.2); }
.heart-btn.is-done { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.heart-btn.is-pop { transform: scale(1.12); }
.heart-count { font-size: 0.84rem; color: var(--color-ink-soft); }
.heart-count strong { font-family: var(--font-display); font-size: 1.25em; color: var(--color-accent-deep); }

.mini-title {
  font-family: var(--font-display);
  font-size: 0.86rem;
  letter-spacing: 0.2em;
  color: var(--color-ink-soft);
  margin-bottom: 0.7rem;
}
.story { margin-bottom: 1.6rem; }
.story__body {
  font-family: var(--font-display);
  background: rgba(236, 231, 244, 0.45);
  border-radius: var(--radius);
  padding: 1rem 1.2rem;
  font-size: 0.92rem;
}
.messages { margin-bottom: 1.6rem; }
.messages__list { list-style: none; display: grid; gap: 0.6rem; max-height: 210px; overflow-y: auto; }
.messages__list li {
  background: rgba(227, 234, 242, 0.5);
  border-radius: 10px;
  padding: 0.6rem 0.9rem;
  font-size: 0.86rem;
}
.messages__list li .nick { display: block; font-size: 0.72rem; color: var(--color-ink-soft); margin-top: 0.2rem; }
.messages__empty { color: var(--color-ink-soft); background: none !important; padding-left: 0 !important; }

.msg-form { display: grid; gap: 0.9rem; position: relative; }
.msg-form__note { font-size: 0.75rem; color: var(--color-ink-soft); }
.msg-form__result { font-size: 0.84rem; color: var(--color-accent-deep); min-height: 1.4em; }

/* ===== レスポンシブ ===== */
/* 狭い画面：ボタン類の重なりを解消する（右下に縦積み・ヒント文は出さない） */
@media (max-width: 599px) {
  .site-head { padding: 1.1rem 1.2rem; }
  .site-head__name { font-size: 1.15rem; }
  .stage__hint { display: none; }
  .stage__actions {
    flex-direction: column;
    align-items: flex-end;
    gap: 0.55rem;
    right: 0.9rem;
    bottom: 4.4rem;
  }
  .ghost-btn { background: rgba(255, 255, 255, 0.85); }
  .words-fab { left: 0.9rem; bottom: 0.9rem; }
  .stage__intro { bottom: 8.5rem; }
}

@media (min-width: 720px) {
  .modal__panel { grid-template-columns: 1.05fr 1fr; }
  .modal__media img { max-height: 60svh; }
  .modal__panel--slim { grid-template-columns: 1fr; }
  .br-sp { display: none; }
}

/* ===== 動きをひかえるモード ===== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .modal__panel { animation: none; }
  .stage__words { display: none; }
  * { transition-duration: 0.01ms !important; }
}

/* ===== 画像の安易な保存を抑止（完全防止ではなく抑止） ===== */
img {
  -webkit-touch-callout: none;   /* iOSの長押しメニュー（画像を保存）を抑止 */
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  -webkit-user-drag: none;
}

/* =========================================================
   応援の気持ちを送る（ouen）
   ========================================================= */
.ouen-amounts { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.ouen-amount {
  min-height: 44px; padding: 0.5rem 1.1rem; border-radius: 999px;
  border: 1px solid rgba(196, 121, 143, 0.45); background: rgba(255, 255, 255, 0.7);
  color: var(--color-ink); font-family: var(--font-body); font-size: 0.9rem; cursor: pointer;
  transition: background var(--duration), color var(--duration), border-color var(--duration);
}
.ouen-amount:hover { border-color: var(--color-accent); color: var(--color-accent-deep); }
.ouen-amount.is-active { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.ouen-agree { display: flex; align-items: flex-start; gap: 0.55rem; font-size: 0.85rem; color: var(--color-ink); line-height: 1.7; }
.ouen-agree input { margin-top: 0.25em; }
.ouen-thanks { padding: 1rem 0 0.5rem; color: var(--color-ink); line-height: 2; }