/* =====================================================================
   ひより写真室 — about.css
   『撮影のことと、ごあいさつ』ページ専用レイアウト。
   すべての色・書体・余白は tokens.css の :root トークンから。
   ===================================================================== */

/* ---------- ワイド画面の欄外マージナリア（designed shell） ---------- */
.margin-note { display: none; }
@media (min-width: 1880px) {
  .margin-note {
    position: fixed;
    top: 0; bottom: 0;
    width: calc((100vw - var(--shell-max)) / 2);
    display: flex; align-items: center; justify-content: center;
    z-index: 2; pointer-events: none;
    background: color-mix(in oklab, var(--color-surface) 14%, transparent);
  }
  .margin-note--left { left: 0; }
  .margin-note--right { right: 0; }
  .margin-note::before {
    content: ""; position: absolute; top: 0; bottom: 0; width: 1px;
    background: var(--color-hairline);
  }
  .margin-note--left::before { right: 0; }
  .margin-note--right::before { left: 0; }
  .margin-note .vertical {
    font-family: var(--font-display);
    color: var(--color-muted);
    font-size: var(--step--1);
    letter-spacing: 0.34em;
    opacity: 0.66;
  }
}

/* ---------- ヘッダー ---------- */
.site-header {
  position: fixed; inset-block-start: 0; inset-inline: 0; z-index: 100;
  padding-block: var(--space-3);
  transition: background-color var(--dur-2) var(--ease-out-quart),
              padding-block var(--dur-2) var(--ease-out-quart),
              border-color var(--dur-2) var(--ease-out-quart);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background-color: color-mix(in oklab, var(--color-bg) 80%, transparent);
  -webkit-backdrop-filter: blur(9px); backdrop-filter: blur(9px);
  padding-block: var(--space-2);
  border-bottom-color: var(--color-hairline);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3);
}
.brand { display: inline-flex; align-items: baseline; gap: 0.6em; }
.brand__name { font-weight: 700; font-size: var(--step-0); letter-spacing: 0.04em; }
.brand__tag { color: var(--color-muted); font-size: var(--step--1); }

.nav-wrap { display: flex; align-items: center; gap: var(--space-3); }
.nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.4rem); }
.nav a { font-size: var(--step--1); letter-spacing: 0.05em; }
.nav a.is-current { color: var(--color-accent); }
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
  z-index: 110;
}
.nav-toggle__bar {
  display: block; width: 22px; height: 1.5px; background: var(--color-fg);
  transition: transform var(--dur-1) var(--ease-out-quart), opacity var(--dur-1) var(--ease-out-quart);
}

/* ---------- HERO ---------- */
.about-hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
}
.about-hero__inner {
  position: relative; width: 100%;
  display: grid; grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
  padding-block: var(--space-7) var(--space-5);
}
.about-hero__eyebrow { grid-column: 1 / 8; align-self: start; }
.about-hero__title {
  grid-column: 1 / 11;
  margin-top: var(--space-3);
  font-weight: 600;
  font-size: clamp(3.4rem, 12vw, 11rem);
  line-height: 0.96;
  letter-spacing: 0.01em;
  font-feature-settings: "palt" 1;
}
.about-hero__lead {
  grid-column: 6 / 13;
  margin-top: var(--space-4);
  max-width: 42ch;
  font-size: var(--step-1);
  line-height: 1.9;
}
.about-hero__ghost {
  position: absolute; top: 4%; right: -1%;
  z-index: 0; pointer-events: none;
  font-size: clamp(3rem, 15vw, 14rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px color-mix(in oklab, var(--color-accent) 34%, transparent);
}
.about-hero__side {
  position: absolute; top: 50%; right: clamp(0.4rem, 2vw, 2rem);
  transform: translateY(-50%);
  color: var(--color-muted);
  font-size: var(--step-0);
  letter-spacing: 0.28em;
}
.about-hero__cue {
  position: absolute; bottom: var(--space-4); left: 0;
  display: inline-flex; flex-direction: column; align-items: center; gap: var(--space-2);
}
.about-hero__cue-label {
  font-family: var(--font-display); font-style: italic;
  font-size: var(--step--1); letter-spacing: 0.1em; color: var(--color-muted);
}
.about-hero__cue-line {
  width: 1px; height: clamp(3rem, 8vh, 6rem);
  background: linear-gradient(var(--color-muted), transparent);
  transform-origin: top;
  animation: cue-pulse 2.6s var(--ease-in-out-quart) infinite;
}
@keyframes cue-pulse {
  0%, 100% { transform: scaleY(0.4); opacity: 0.4; }
  50% { transform: scaleY(1); opacity: 0.9; }
}

/* ---------- PROFILE ---------- */
.profile__grid { align-items: center; }
.profile__figure {
  position: relative;
  grid-column: 1 / 7;
}
.profile__panel {
  aspect-ratio: 4 / 5;
  display: grid; place-items: center;
  color: color-mix(in oklab, var(--color-fg) 78%, transparent);
}
.profile__line { width: 62%; height: auto; }
.profile__cap {
  position: absolute; left: var(--space-3); bottom: var(--space-3);
  display: flex; flex-direction: column; gap: 0.15em;
  font-size: var(--step--1); letter-spacing: 0.04em;
}
.profile__cap-name { font-weight: 500; }
.profile__cap-role { font-family: var(--font-display); font-style: italic; letter-spacing: 0.08em; }
.profile__year {
  position: absolute; right: -0.2em; bottom: -0.28em;
  z-index: 3;
  font-size: clamp(3rem, 8vw, 7rem);
  color: color-mix(in oklab, var(--color-fg) 30%, transparent);
  pointer-events: none;
}
.profile__text { grid-column: 8 / 13; }
.profile__text h2 { margin-top: var(--space-2); }
.profile__text p { margin-top: var(--space-3); }
.profile__note { color: var(--color-accent); font-size: var(--step-0); }

/* ---------- NAGARE / PROCESS ---------- */
.nagare__surface {
  background: color-mix(in oklab, var(--color-surface) 32%, var(--color-bg));
  padding-block: var(--space-6);
}
.nagare__head { max-width: 40ch; margin-bottom: var(--space-5); }
.nagare__head h2 { margin-top: var(--space-2); }
.nagare__intro { margin-top: var(--space-3); color: color-mix(in oklab, var(--color-fg) 78%, transparent); }
.nagare__steps { display: grid; gap: 0; }
.nagare__step {
  display: grid;
  grid-template-columns: minmax(3.5rem, 0.8fr) minmax(0, 6fr);
  gap: var(--gutter);
  align-items: start;
  padding-block: var(--space-4);
  border-top: 1px solid var(--color-hairline);
}
.nagare__step:last-child { border-bottom: 1px solid var(--color-hairline); }
.nagare__num { line-height: 1; }
.nagare__body { max-width: 52ch; }
.nagare__body h3 { font-weight: 500; }
.nagare__body p { margin-top: var(--space-2); }

/* ---------- ANNAI / GUIDE ---------- */
.annai__grid { align-items: start; }
.annai__head { grid-column: 1 / 6; position: sticky; top: clamp(5rem, 12vh, 8rem); }
.annai__head h2 { margin-top: var(--space-2); }
.annai__head p { margin-top: var(--space-3); color: color-mix(in oklab, var(--color-fg) 78%, transparent); }
.price-list { grid-column: 7 / 13; }
.price-row {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: baseline;
  padding-block: var(--space-3);
  border-top: 1px solid var(--color-hairline);
  color: color-mix(in oklab, var(--color-fg) 82%, transparent);
  transition: color var(--dur-1) var(--ease-out-quart);
}
.price-row:last-child { border-bottom: 1px solid var(--color-hairline); }
.price-row::after {
  content: ""; position: absolute; left: 0; bottom: -1px;
  width: 100%; height: 1px; background: var(--color-accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-2) var(--ease-out-quart);
}
.price-row:hover, .price-row:focus-within { color: var(--color-fg); }
.price-row:hover::after, .price-row:focus-within::after { transform: scaleX(1); }
.price-idx { align-self: start; padding-top: 0.35em; }
.price-plan { display: flex; flex-direction: column; gap: 0.35em; }
.price-plan .plan { font-weight: 500; font-size: var(--step-1); }
.price-plan .plan-note { font-size: var(--step--1); line-height: 1.6; }
.price {
  font-family: var(--font-display); font-weight: 400;
  font-variant-numeric: tabular-nums; letter-spacing: 0.01em;
  font-size: var(--step-2); white-space: nowrap;
}
.price small { font-size: 0.5em; margin-right: 0.1em; vertical-align: 0.15em; color: var(--color-muted); }
.price--word { font-style: italic; font-size: var(--step-1); color: var(--color-muted); }

/* ---------- FOOTER ---------- */
.site-footer { padding-block: var(--space-6) var(--space-4); position: relative; z-index: 3; }
.site-footer__rule { margin-bottom: var(--space-4); }
.site-footer__marquee { margin-bottom: var(--space-6); }
.site-footer__marquee .mq {
  font-size: clamp(1.4rem, 4vw, 2.6rem);
  color: color-mix(in oklab, var(--color-fg) 40%, transparent);
}
.site-footer__marquee .mq--en { font-family: var(--font-display); font-style: italic; }
.site-footer__marquee .mq--hand { font-family: var(--font-hand); color: var(--color-accent); }

.site-footer__grid { align-items: end; row-gap: var(--space-5); }
.site-footer__lead { grid-column: 1 / 8; }
.site-footer__title {
  margin-top: var(--space-2);
  font-size: clamp(3.2rem, 12vw, 13rem);
  line-height: 0.94;
  font-weight: 300;
  font-feature-settings: "palt" 1;
}
.site-footer__contact { grid-column: 8 / 13; align-self: end; }
.site-footer__contact p { max-width: 34ch; }
.footer__cta {
  display: inline-flex; align-items: center; gap: 0.8em;
  margin-top: var(--space-3);
  padding: 0.7em 1.2em;
  border: 1px solid var(--color-hairline-strong);
  border-radius: 2px;
  font-size: var(--step-0);
  background-image: none;
  transition: border-color var(--dur-1) var(--ease-out-quart), background-color var(--dur-1) var(--ease-out-quart);
}
.footer__cta:hover, .footer__cta:focus-visible {
  border-color: var(--color-accent);
  background-color: color-mix(in oklab, var(--color-accent) 8%, transparent);
}
.footer__cta-arrow { transition: transform var(--dur-1) var(--ease-out-quart); }
.footer__cta:hover .footer__cta-arrow { transform: translateX(0.3em); }
.site-footer__lines { margin-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-1); font-size: var(--step-0); }

.site-footer__nav {
  display: flex; flex-wrap: wrap; gap: var(--space-4);
  margin-block: var(--space-6) var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-hairline);
  font-size: var(--step--1); letter-spacing: 0.05em;
}
.site-footer__meta {
  display: flex; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap; gap: var(--space-2);
  font-size: var(--step--1); color: var(--color-muted);
}
.site-footer__hand { color: var(--color-accent); font-size: var(--step-0); }

/* ---------- レスポンシブ ---------- */
@media (max-width: 1024px) {
  .about-hero__lead { grid-column: 4 / 13; }
  .annai__head { grid-column: 1 / 5; }
  .price-list { grid-column: 6 / 13; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed; inset: 0; z-index: 90;
    flex-direction: column; align-items: flex-start; justify-content: center;
    gap: var(--space-4);
    padding: var(--page-inline);
    background: color-mix(in oklab, var(--color-bg) 96%, var(--color-surface));
    transform: translateY(-102%);
    transition: transform var(--dur-2) var(--ease-in-out-quart);
  }
  body.nav-open .nav { transform: translateY(0); }
  .nav a { font-size: var(--step-2); letter-spacing: 0.02em; }
  body.nav-open .nav-toggle__bar:first-child { transform: translateY(3.25px) rotate(45deg); }
  body.nav-open .nav-toggle__bar:last-child { transform: translateY(-3.25px) rotate(-45deg); }

  .about-hero__inner { display: block; padding-block: var(--space-7) var(--space-5); }
  .about-hero__title { max-width: 100%; }
  .about-hero__lead { max-width: 100%; margin-top: var(--space-4); }
  .about-hero__side { display: none; }
  .about-hero__ghost { top: auto; bottom: 22%; opacity: 0.7; }
  .about-hero__cue { position: static; margin-top: var(--space-5); flex-direction: row; align-items: center; }
  .about-hero__cue-line { width: clamp(3rem, 20vw, 6rem); height: 1px; background: linear-gradient(90deg, var(--color-muted), transparent); animation: none; }

  .profile__figure { grid-column: 1 / -1; max-width: 22rem; }
  .profile__text { grid-column: 1 / -1; margin-top: var(--space-4); }
  .profile__year { font-size: clamp(2.6rem, 16vw, 4.5rem); }

  .nagare__step { grid-template-columns: auto minmax(0, 1fr); gap: var(--space-3); align-items: baseline; }
  .nagare__num { font-size: var(--step-2); }

  .annai__head { grid-column: 1 / -1; position: static; }
  .price-list { grid-column: 1 / -1; margin-top: var(--space-4); }

  .site-footer__lead, .site-footer__contact { grid-column: 1 / -1; }
  .site-footer__meta { flex-direction: column; }
}

/* HERO 見出しがモバイル幅ではみ出す不具合の修正：
   小さな下限に落とし、字が横にあふれないよう折り返しを許可する。 */
@media (max-width: 600px) {
  .about-hero__title {
    grid-column: 1 / -1;
    font-size: clamp(2.2rem, 10.5vw, 3.4rem);
    line-height: 1.06;
    overflow-wrap: anywhere;
    word-break: normal;
  }
  .about-hero__title .split-word { white-space: normal; }
}

@media (max-width: 480px) {
  .price-row { grid-template-columns: auto minmax(0, 1fr); }
  .price-row .price { grid-column: 1 / -1; justify-self: start; margin-top: var(--space-1); }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .about-hero__cue-line { animation: none !important; transform: none; opacity: 0.7; }
}