/* ================================================
   animations.css - 演出・アニメーション専用
   ================================================ */

/* ---------- カスタムカーソル ---------- */
@media (hover: hover) and (pointer: fine) {
  body { cursor: none; }
  a, button, .biz-card, .work-card, .svc-card, .stat, .reason, .faq__q, .hamburger { cursor: none; }

  .cursor-ring,
  .cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    will-change: transform, width, height, opacity;
  }
  .cursor-ring {
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-gold);
    border-radius: 50%;
    transition: width 0.3s ease, height 0.3s ease, border-color 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
    mix-blend-mode: difference;
  }
  .cursor-dot {
    width: 4px;
    height: 4px;
    background: var(--color-gold);
    border-radius: 50%;
    transition: opacity 0.2s ease;
  }
  .cursor-ring.is-hover {
    width: 64px;
    height: 64px;
    background: rgba(212, 175, 55, 0.08);
    border-color: var(--color-gold-light);
  }
  .cursor-ring.is-hidden,
  .cursor-dot.is-hidden { opacity: 0; }
}

/* ---------- ローディング画面 ---------- */
.loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.loader__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.loader__nr {
  font-family: var(--font-serif-en);
  font-size: clamp(72px, 14vw, 140px);
  font-weight: 600;
  letter-spacing: -0.06em;
  line-height: 1;
  background: var(--gradient-gold-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0;
  transform: translateY(24px) scale(0.96);
  animation: loader-text-in 1.1s 0.05s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.loader__text {
  font-family: var(--font-serif-en);
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text);
  margin-top: 4px;
  opacity: 0;
  transform: translateY(16px);
  animation: loader-text-in 0.9s 0.45s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.loader__sub {
  font-size: 11px;
  letter-spacing: 0.45em;
  color: var(--color-text-sub);
  opacity: 0;
  animation: loader-text-in 0.8s 0.75s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.loader__line {
  position: relative;
  width: 200px;
  height: 1px;
  background: var(--color-border-soft);
  overflow: hidden;
  margin-top: 8px;
}
.loader__line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-gold);
  transform: translateX(-100%);
  animation: loader-line 1.4s 0.8s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}
.loader__curtain {
  position: absolute;
  inset: 0;
  background: var(--color-bg);
  transform: translateY(0);
  z-index: 1;
  pointer-events: none;
}
.loader.is-done .loader__curtain {
  animation: loader-curtain 1.2s 0s cubic-bezier(0.76, 0, 0.24, 1) forwards;
}
.loader.is-done .loader__inner {
  animation: loader-content-out 0.6s ease forwards;
}
.loader.is-gone {
  display: none;
}

@keyframes loader-text-in {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes loader-line {
  to { transform: translateX(100%); }
}
@keyframes loader-curtain {
  to { transform: translateY(-100%); }
}
@keyframes loader-content-out {
  to { opacity: 0; transform: translateY(-12px); }
}

/* ローディング中はスクロール禁止 */
body.is-loading { overflow: hidden; height: 100vh; }

/* ---------- スクロール進捗バー ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--gradient-gold);
  box-shadow: 0 0 12px rgba(212, 175, 55, 0.6);
  z-index: 200;
  transition: width 0.05s linear;
}

/* ---------- カスタムスクロールバー ---------- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-gold-dark), var(--color-gold));
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--color-gold-light); }

/* ---------- Heroテキスト・マスクリビール ---------- */
.reveal-line {
  display: block;
  overflow: hidden;
  line-height: 1.3;
  padding-block: 0.05em;
}
.reveal-line > .reveal-line__inner {
  display: inline-block;
  transform: translateY(110%);
  opacity: 0;
}
.is-loaded .reveal-line > .reveal-line__inner {
  animation: reveal-up 1.1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.is-loaded .reveal-line:nth-child(1) > .reveal-line__inner { animation-delay: 0.1s; }
.is-loaded .reveal-line:nth-child(2) > .reveal-line__inner { animation-delay: 0.25s; }
.is-loaded .reveal-line:nth-child(3) > .reveal-line__inner { animation-delay: 0.4s; }

@keyframes reveal-up {
  to { transform: translateY(0); opacity: 1; }
}

/* Hero周辺の遅延フェード */
.is-loaded .hero__label,
.is-loaded .hero__sub,
.is-loaded .hero__cta,
.is-loaded .stats {
  animation: hero-fade-in 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
  transform: translateY(20px);
}
.is-loaded .hero__label { animation-delay: 0.0s; }
.is-loaded .hero__sub   { animation-delay: 0.7s; }
.is-loaded .hero__cta   { animation-delay: 0.9s; }
.is-loaded .stats       { animation-delay: 1.1s; }

@keyframes hero-fade-in {
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Hero背景 ケンバーンズ ---------- */
.hero__bg {
  animation: ken-burns 24s ease-in-out infinite alternate;
  transform-origin: center center;
}
@keyframes ken-burns {
  0%   { transform: scale(1.05); }
  100% { transform: scale(1.18) translate(-1.5%, 1%); }
}

/* Hero overlay にゴールドのライト揺らぎ（紫廃止、ゴールド+グレー陰影に） */
.hero__overlay::after {
  content: "";
  position: absolute;
  inset: -10%;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(201,166,70,0.10), transparent 45%),
    radial-gradient(ellipse at 80% 20%, rgba(255,255,255,0.04), transparent 50%);
  animation: hero-glow 10s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes hero-glow {
  0%   { opacity: 0.6; transform: translate(0, 0); }
  100% { opacity: 1;   transform: translate(2%, -2%); }
}

/* ---------- マーキー（流れる帯） ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  padding: 28px 0;
  border-block: 1px solid var(--color-border-soft);
  background: linear-gradient(90deg, var(--color-bg), var(--color-bg-section), var(--color-bg));
}
.marquee__track {
  display: flex;
  gap: 64px;
  width: max-content;
  animation: marquee 40s linear infinite;
  white-space: nowrap;
}
.marquee__item {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: clamp(28px, 5vw, 56px);
  font-weight: 600;
  letter-spacing: 0.08em;
  background: var(--gradient-gold-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-flex;
  align-items: center;
  gap: 64px;
}
.marquee__item::after {
  content: "✦";
  font-size: 0.5em;
  color: var(--color-gold);
  -webkit-text-fill-color: var(--color-gold);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- スタッガーフェードアップ（既存より上質に） ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(48px);
  filter: blur(2px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1s cubic-bezier(0.16, 1, 0.3, 1),
              filter 1s ease;
}
.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* グリッド子要素のスタッガー（CSS変数 --i で順番） */
.stagger > * {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--i, 0) * 80ms);
}
.stagger.is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- マグネティックボタン ---------- */
.btn {
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.4), transparent);
  transform: translateX(-150%);
  transition: transform 0.7s ease;
}
.btn:hover::before { transform: translateX(150%); }

/* ---------- カードホバー強化 ---------- */
.biz-card,
.work-card,
.svc-card {
  position: relative;
}
.biz-card::after,
.work-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid transparent;
  pointer-events: none;
  transition: border-color 0.4s ease, inset 0.4s ease;
  z-index: 2;
}
.biz-card:hover::after,
.work-card:hover::after {
  border-color: var(--color-gold);
  inset: 8px;
}

/* svc-card の右下に矢印アクセント */
.svc-card__more {
  position: relative;
  display: inline-block;
  padding-bottom: 4px;
}
.svc-card__more::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.svc-card:hover .svc-card__more::before { width: 100%; }

/* reason ホバーの光 */
.reason {
  overflow: hidden;
  z-index: 1;
}
.reason::before {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(212,175,55,0.18), transparent 60%);
  top: -100px;
  left: -100px;
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.8s ease;
  z-index: -1;
}
.reason:hover::before { opacity: 1; transform: translate(40px, 40px); }

/* ---------- セクション間の罫線アクセント ---------- */
.section + .section,
.section + .section--alt,
.section--alt + .section {
  position: relative;
}

/* ---------- パララックス ---------- */
.parallax {
  will-change: transform;
}

/* ---------- アクセシビリティ：reduce motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero__bg { animation: none; }
  .marquee__track { animation: none; }
  .reveal-line > .reveal-line__inner { transform: translateY(0); opacity: 1; }
}