/* ==========================================================================
   Sunshore — Sections
   セクションごとのレイアウト。影を使わず明度差と余白で階層を作る。
   ========================================================================== */

section { position: relative; }

/* 内側の共通コンテナ幅 */
.hero__inner,
.philosophy__inner,
.services,
.company,
.contact__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--margin);
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  /* 固定ヘッダー分のクリアランスを確保し、見出しがロゴに重ならないようにする */
  padding-top: clamp(5.5rem, 10vh, 8rem);
}
/* Canvas 波形背景（JS が canvas を差し込む） */
.hero > canvas,
.contact > canvas,
.mock--teaser > canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 2; width: 100%; padding-block: 2rem 4rem; }

.eyebrow {
  font-size: var(--step--1);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--c-ink-soft);
  margin-bottom: clamp(1.2rem, 3vw, 2.4rem);
}
.hero__title {
  font-size: var(--step-hero);
  line-height: 0.94;
  letter-spacing: -0.045em;
  font-weight: 600;
  max-width: 14ch;
}
.hero__sub {
  margin-top: clamp(1.4rem, 3vw, 2.6rem);
  font-size: var(--step-1);
  letter-spacing: 0.02em;
  color: var(--c-ink-soft);
}
/* 縦組みの装飾テキスト（右端に静かに寄り添う） */
.hero__vertical {
  position: absolute;
  right: clamp(1rem, 3vw, 3rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.3em;
  font-size: var(--step--1);
  color: var(--c-ink-faint);
  text-transform: uppercase;
}

.hero__scroll {
  position: absolute;
  left: var(--margin);
  bottom: clamp(1.5rem, 4vh, 3rem);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-size: var(--step--1);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-ink-soft);
}
.hero__scroll-line {
  display: block; width: 60px; height: 1px;
  background: var(--c-line);
  position: relative; overflow: hidden;
}
.hero__scroll-line::after {
  content: ""; position: absolute; inset: 0;
  background: var(--c-accent);
  transform: translateX(-100%);
  animation: scrollLine 2.6s var(--ease-wave) infinite;
}
@keyframes scrollLine {
  0% { transform: translateX(-100%); }
  55%,100% { transform: translateX(100%); }
}

/* =========================================================
   PHILOSOPHY（水平線装飾 + 進捗連動の行表示）
   ========================================================= */
.philosophy {
  padding-block: clamp(7rem, 16vh, 14rem);
}
.horizon {
  position: absolute;
  left: 0; right: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-line), transparent);
}
.philosophy__inner { position: relative; }
.philosophy__title {
  font-size: var(--step-2);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 600;
  color: var(--c-accent);
  margin-top: 1.4rem;
}
.philosophy__lines {
  margin-top: clamp(1.6rem, 4vw, 2.8rem);
  font-size: var(--step-1);
  line-height: 1.9;
  letter-spacing: 0.01em;
  max-width: 42ch;
  font-weight: 500;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
/* 進捗（data-anim-sticky）で 1 行ずつ立ち上がる。JS が data-lit を付与 */
.philosophy__lines [data-progress-line] {
  opacity: 0.16;
  transform: translateY(10px);
  transition: opacity 0.7s var(--ease-wave), transform 0.7s var(--ease-wave);
}
.philosophy__lines [data-progress-line][data-lit] {
  opacity: 1;
  transform: none;
}

/* =========================================================
   海面バナー（自己完結プレースホルダ）
   ========================================================= */
.sea-banner {
  position: relative;
  height: clamp(180px, 30vh, 320px);
  margin: clamp(1rem, 4vw, 3rem) 0 clamp(3rem, 8vh, 6rem);
  overflow: hidden;
  background:
    linear-gradient(180deg, var(--c-turquoise), var(--c-bg-deep));
}
.sea-banner__wave {
  position: absolute;
  inset: auto 0 0 0;
  width: 100%; height: 70%;
  display: block;
}
.sea-banner__glow {
  position: absolute;
  top: 12%; left: 50%;
  width: clamp(160px, 24vw, 320px);
  aspect-ratio: 1;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217,192,136,0.55), rgba(217,192,136,0) 62%);
  filter: blur(6px);
}

/* =========================================================
   SERVICES
   ========================================================= */
.services { padding-block: clamp(5rem, 12vh, 9rem); }
/* 縦組みラベル */
.services__vertical {
  position: absolute;
  left: clamp(0.5rem, 1.5vw, 1.5rem);
  top: clamp(6rem, 14vh, 10rem);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.4em;
  font-size: var(--step--1);
  color: var(--c-ink-faint);
}
.services__head,
.company__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-bottom: clamp(2rem, 5vw, 4rem);
  border-bottom: 1px solid var(--c-line);
}

.services__list { display: flex; flex-direction: column; }
.service {
  display: grid;
  grid-template-columns: 5rem 1fr minmax(240px, 40%);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
  padding-block: clamp(3rem, 8vw, 6.5rem);
  border-bottom: 1px solid var(--c-line);
}
.service--rev { grid-template-columns: 5rem minmax(240px, 40%) 1fr; }
.service--rev .service__body { order: 2; }
.service--rev .mock { order: 1; }

.service__no {
  font-size: var(--step-1);
  color: var(--c-accent);
  align-self: start;
}
.service__name {
  font-size: var(--step-2);
  letter-spacing: -0.02em;
  font-weight: 600;
  line-height: 1.05;
}
.service__tag {
  margin-top: 0.6rem;
  font-size: var(--step--1);
  color: var(--c-ink-soft);
  letter-spacing: 0.04em;
}
.service__lead {
  margin-top: 1.2rem;
  max-width: 40ch;
  font-size: var(--step-1);
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.5;
  color: var(--c-ink);
}
.service__copy {
  margin-top: 1.4rem;
  max-width: 42ch;
  color: var(--c-ink-soft);
}

/* マグネティックボタン */
.btn-magnetic {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 2rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--c-line);
  border-radius: 100px;
  font-family: var(--f-mono);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  color: var(--c-ink);
  will-change: transform;
  transition: border-color 0.4s ease, background 0.4s ease, color 0.4s ease;
}
.btn-magnetic > span { display: inline-block; will-change: transform; }
.btn-magnetic::before {
  content: "→"; order: 2; opacity: 0.5;
  transition: transform 0.4s var(--ease-wave), opacity 0.3s ease;
}
.btn-magnetic:hover {
  border-color: var(--c-accent);
  background: var(--c-accent);
  color: #1c1a10;
}
.btn-magnetic:hover::before { transform: translateX(4px); opacity: 1; }

/* ティザー用（非活性・矢印なし） */
.btn-magnetic--soon {
  color: var(--c-ink-faint);
  border-style: dashed;
  cursor: default;
}
.btn-magnetic--soon::before { content: none; }
.btn-magnetic--soon:hover {
  background: none;
  border-color: var(--c-line);
  color: var(--c-ink-faint);
}

/* ---- モックアップ・プレースホルダ（CSS/SVG のみ） ---- */
.mock { display: flex; justify-content: center; align-items: center; }

.mock__phone {
  width: min(220px, 60vw);
  aspect-ratio: 9 / 19;
  border-radius: 30px;
  border: 1px solid var(--c-line);
  background: linear-gradient(160deg, #fff, var(--c-bg-soft));
  padding: 14px;
  position: relative;
}
.mock__notch {
  position: absolute; top: 12px; left: 50%; transform: translateX(-50%);
  width: 60px; height: 5px; border-radius: 5px; background: var(--c-line);
}
/* スマホ画面：実アプリのスクショをフレーム内に敷き込む */
.mock--phone .mock__shot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  border-radius: 20px;
  display: block;
}

.mock__laptop { width: min(460px, 84vw); }
.mock__laptop .mock__screen {
  aspect-ratio: 16 / 10;
  border-radius: 12px 12px 0 0;
  border: 1px solid var(--c-line);
  border-bottom: 0;
  overflow: hidden;
  background: #fff;
}
.mock--laptop .mock__shot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.mock__base {
  display: block; height: 14px;
  border-radius: 0 0 14px 14px;
  background: linear-gradient(180deg, var(--c-bg-soft), var(--c-line));
  border: 1px solid var(--c-line);
}

.mock--teaser { position: relative; min-height: 240px; width: 100%; border-radius: var(--radius);
  border: 1px solid var(--c-line); overflow: hidden;
  background: linear-gradient(160deg, var(--c-bg-soft), #fff); }
.mock__logo { position: relative; z-index: 2; color: var(--c-accent); opacity: 0.85; }
.service--teaser .service__name { color: var(--c-ink-soft); }

/* =========================================================
   COMPANY
   ========================================================= */
.company { padding-block: clamp(5rem, 12vh, 9rem); }
.company__table { margin-top: clamp(2rem, 5vw, 3.5rem); }
.company__row {
  display: grid;
  grid-template-columns: minmax(160px, 22%) 1fr;
  gap: 1rem;
  padding-block: clamp(1rem, 2.5vw, 1.6rem);
  border-bottom: 1px solid var(--c-line-soft);
  align-items: baseline;
}
.company__row dt { color: var(--c-ink-soft); font-size: var(--step--1); letter-spacing: 0.08em; }
.company__row dd { font-size: var(--step-1); letter-spacing: -0.01em; }

/* =========================================================
   CONTACT（濃色面へ切替）
   ========================================================= */
.contact {
  position: relative;
  overflow: hidden;
  background: var(--c-bg-deep);
  color: var(--c-on-deep);
  padding-block: clamp(6rem, 14vh, 11rem);
  margin-top: clamp(3rem, 8vh, 6rem);
}
.contact__inner { position: relative; z-index: 2; }
.contact__head { margin-bottom: clamp(2.5rem, 6vw, 4.5rem); max-width: var(--maxw); }
.contact__title { color: var(--c-on-deep); }
.contact__lead { margin-top: 1.2rem; font-size: var(--step-1); color: var(--c-on-deep-soft); }

.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.6rem, 4vw, 3rem) clamp(1.6rem, 4vw, 3rem);
  max-width: 900px;
}
.field { display: flex; flex-direction: column; gap: 0.6rem; }
.field--wide { grid-column: 1 / -1; }
.field label {
  font-family: var(--f-mono);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  color: var(--c-on-deep-soft);
}
.field input,
.field textarea {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--c-line-on-deep);
  color: var(--c-on-deep);
  font: inherit;
  padding: 0.6rem 0;
  transition: border-color 0.4s var(--ease-wave);
  resize: vertical;
}
.field input:focus,
.field textarea:focus { outline: none; border-color: var(--c-accent); }
.field input::placeholder,
.field textarea::placeholder { color: var(--c-on-deep-soft); opacity: 0.5; }

.consent {
  display: flex; align-items: center; gap: 0.7rem;
  color: var(--c-on-deep-soft);
  font-size: var(--step--1);
  cursor: pointer;
}
.consent input { width: 16px; height: 16px; accent-color: var(--c-accent); }

.btn-submit {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2.4rem;
  border-radius: 100px;
  background: var(--c-accent);
  color: #1c1a10;
  font-family: var(--f-mono);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  will-change: transform;
  transition: background 0.4s ease, transform 0.3s var(--ease-wave);
}
.btn-submit > span { display: inline-block; will-change: transform; }
.btn-submit:hover { background: var(--c-accent-soft); }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer {
  background: var(--c-bg-deep-2);
  color: var(--c-on-deep);
  padding: clamp(3.5rem, 8vw, 6rem) var(--margin) 2.5rem;
}
.site-footer__top {
  max-width: var(--maxw);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem 4rem;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid var(--c-line-on-deep);
}
.brand--footer .brand__word { font-size: var(--step-2); }
.footer-nav, .footer-social { display: flex; flex-direction: column; gap: 0.9rem; font-size: var(--step--1); }
.footer-nav a, .footer-social a { color: var(--c-on-deep-soft); transition: color 0.3s ease; }
.footer-nav a:hover, .footer-social a:hover { color: var(--c-accent); }
.footer-social { flex-direction: row; gap: 1.4rem; }

.site-footer__bottom {
  max-width: var(--maxw);
  margin: 1.8rem auto 0;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.6rem;
  font-size: var(--step--1);
  color: var(--c-on-deep-soft);
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 900px) {
  .nav { display: none; }
  .nav-toggle { display: block; }
  /* 縦組みの装飾ラベルはモバイルでは非表示 */
  .hero__vertical, .services__vertical { display: none; }
  .site-header[data-nav-open="true"] { background: var(--c-bg); }
  .site-header[data-nav-open="true"] .nav {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    padding: 1.5rem var(--margin) 2rem;
    background: var(--c-bg);
    border-top: 1px solid var(--c-line);
    font-size: var(--step-1);
  }

  .service,
  .service--rev { grid-template-columns: 3rem 1fr; }
  .service .mock,
  .service--rev .mock { grid-column: 1 / -1; order: 3; margin-top: 1.5rem; }
  .service--rev .service__body { order: 2; }

  .form { grid-template-columns: 1fr; }
  .company__row { grid-template-columns: 1fr; gap: 0.3rem; }
}