/* ============================================================
   朱雀 — Tokyocompass LP
   紙:#FCFBF8 / 墨:#181311 / 朱:#9F3327
============================================================ */
:root {
  --paper: #FCFBF8;
  --ink: #181311;
  --vermilion: #9F3327;
  --vermilion-soft: rgba(159, 51, 39, 0.08);
  --ink-soft: rgba(24, 19, 17, 0.55);
  --serif-jp: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --serif-en: "Cormorant Garamond", Georgia, serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif-jp);
  line-height: 1.9;
  overflow-x: hidden;
  /* 紙の質感（うっすら） */
  background-image:
    radial-gradient(rgba(24, 19, 17, 0.025) 1px, transparent 1px);
  background-size: 5px 5px;
}

::selection { background: var(--vermilion); color: var(--paper); }

/* ============ ローディングの幕 ============ */
.curtain {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--ink);
  display: grid;
  place-items: center;
  transition: transform 1s cubic-bezier(0.76, 0, 0.24, 1);
}
.curtain--open { transform: translateY(-100%); }
.curtain__mark {
  color: var(--paper);
  font-size: clamp(2rem, 6vw, 4rem);
  letter-spacing: 0.5em;
  padding-left: 0.5em;
  opacity: 0;
  animation: curtainMark 1.2s ease 0.15s forwards;
}
@keyframes curtainMark {
  from { opacity: 0; filter: blur(8px); }
  to   { opacity: 1; filter: blur(0); }
}

/* ============ ヘッダー ============ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem clamp(1.2rem, 4vw, 3rem);
  mix-blend-mode: multiply;
}
.header__brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}
.header__vermilion-dot {
  width: 0.6em; height: 0.6em;
  border-radius: 50%;
  background: var(--vermilion);
  display: inline-block;
  transform: translateY(-0.1em);
}
.header__name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.35em;
}
.header__sub {
  font-family: var(--serif-en);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.header__cta {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0.45em 1.2em;
  transition: background 0.3s, color 0.3s;
}
.header__cta:hover { background: var(--vermilion); border-color: var(--vermilion); color: var(--paper); }

/* ============ HERO ============ */
.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(1rem, 4vw, 4rem);
  padding: clamp(5rem, 10vh, 7rem) clamp(1.2rem, 5vw, 5rem) 4rem;
  position: relative;
}

.hero__bearing {
  position: absolute;
  bottom: 2.4rem;
  left: clamp(1.2rem, 5vw, 5rem);
  font-family: var(--serif-en);
  display: flex;
  flex-direction: column;
  line-height: 1.3;
  color: var(--ink-soft);
}
.hero__bearing-deg {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-variant-numeric: tabular-nums;
  color: var(--vermilion);
}
.hero__bearing-dir {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
}

.hero__compass-wrap {
  order: 2;
  display: grid;
  place-items: center;
}
.compass {
  width: min(78vw, 560px);
  height: auto;
  cursor: crosshair;
  user-select: none;
}
.compass__rings { transform-origin: 512px 512px; }
.compass__needle {
  transform-origin: 512px 512px;
  will-change: transform;
  filter: drop-shadow(0 6px 10px rgba(24, 19, 17, 0.18));
}
.compass__ticks { transform-origin: 512px 512px; }
.compass__ticks line { stroke: var(--ink); }
.compass__ticks line.tick--minor { opacity: 0.28; }
.compass__ticks line.tick--major { opacity: 0.75; }
.compass__ticks line.tick--north { stroke: var(--vermilion); opacity: 1; }
.compass__cardinals text {
  font-family: var(--serif-jp);
  font-size: 44px;
  font-weight: 700;
  fill: var(--ink);
  opacity: 0.85;
}
.compass__cardinals text:first-child { fill: var(--vermilion); }

.hero__text { order: 1; }
.hero__kicker {
  font-family: var(--serif-en);
  font-size: 0.8rem;
  letter-spacing: 0.4em;
  color: var(--vermilion);
  margin-bottom: 1.2rem;
}
.hero__title {
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 0.06em;
}
.hero__title-line { display: block; }
.hero__punct { color: var(--vermilion); }
.hero__punct--light { color: var(--vermilion); }
.hero__lead {
  margin-top: 1.8rem;
  font-size: clamp(0.95rem, 1.4vw, 1.1rem);
  color: var(--ink-soft);
}
.hero__lead em {
  font-style: normal;
  color: var(--ink);
  border-bottom: 1px solid var(--vermilion);
}
.hero__actions {
  margin-top: 2.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  font-family: var(--serif-jp);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-decoration: none;
  padding: 0.85em 2em;
  border-radius: 999px;
  transition: transform 0.3s, background 0.3s, color 0.3s, box-shadow 0.3s;
}
.btn--primary {
  background: var(--vermilion);
  color: var(--paper);
  box-shadow: 0 8px 24px rgba(159, 51, 39, 0.25);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(159, 51, 39, 0.35); }
.btn--ghost {
  color: var(--ink);
  border: 1px solid rgba(24, 19, 17, 0.35);
}
.btn--ghost:hover { border-color: var(--ink); background: var(--vermilion-soft); }

.hero__scrolldown {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink-soft);
}
.hero__scrolldown-line {
  width: 1px;
  height: 3.2rem;
  background: var(--ink);
  transform-origin: top;
  animation: scrollLine 2.2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); }
  45% { transform: scaleY(1); transform-origin: top; }
  46% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
.hero__scrolldown-text {
  font-size: 0.72rem;
  letter-spacing: 0.4em;
  writing-mode: vertical-rl;
}

/* ============ 帯 ============ */
.marquee {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  overflow: hidden;
  padding: 0.9rem 0;
  background: var(--paper);
}
.marquee__track {
  display: flex;
  white-space: nowrap;
  width: max-content;
  animation: marquee 36s linear infinite;
}
.marquee__track span {
  font-size: 1rem;
  letter-spacing: 0.35em;
  color: var(--ink-soft);
  padding-right: 2em;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============ セクション共通 ============ */
.section-index {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--serif-en);
  font-size: 0.78rem;
  letter-spacing: 0.45em;
  color: var(--vermilion);
  border-bottom: 1px solid var(--vermilion);
  padding-bottom: 0.4em;
  margin-bottom: 2.5rem;
}
.section-index--center { align-self: center; }
.section-index--light { color: #E8B7AE; border-color: #E8B7AE; }

/* ============ CONCEPT ============ */
.concept {
  position: relative;
  padding: clamp(6rem, 14vh, 10rem) clamp(1.2rem, 6vw, 6rem);
  display: flex;
}
.concept__inner { max-width: 640px; }
.concept__title {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.3;
  margin-bottom: 2.5rem;
}
.concept__title > span { display: block; }
.concept__title .hero__punct { display: inline; }
.concept__body p { margin-bottom: 1.6rem; color: var(--ink-soft); }
.concept__body p:nth-child(2) { color: var(--ink); }
.concept__quote {
  margin-top: 3rem;
  padding-left: 1.4rem;
  border-left: 2px solid var(--vermilion);
  color: var(--ink) !important;
  font-weight: 500;
}
.concept__vertical {
  position: absolute;
  right: clamp(1rem, 5vw, 5rem);
  top: 50%;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  letter-spacing: 0.5em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(24, 19, 17, 0.25);
  pointer-events: none;
}

/* ============ FEATURES ============ */
.features {
  padding: clamp(6rem, 14vh, 10rem) clamp(1.2rem, 6vw, 6rem);
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(rgba(159, 51, 39, 0.035), rgba(159, 51, 39, 0.035)),
    var(--paper);
}
.features__title {
  text-align: center;
  font-size: clamp(1.9rem, 4.5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: 0.1em;
  margin-bottom: 4rem;
}
.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  max-width: 1180px;
  margin: 0 auto;
  width: 100%;
}
.feature {
  position: relative;
  border: 1px solid rgba(24, 19, 17, 0.18);
  border-radius: 4px;
  padding: 2.2rem 1.8rem 2rem;
  background: var(--paper);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.feature:hover {
  transform: translateY(-6px);
  border-color: var(--vermilion);
  box-shadow: 0 18px 40px rgba(24, 19, 17, 0.08);
}
.feature__num {
  position: absolute;
  top: 1.2rem;
  right: 1.4rem;
  font-family: var(--serif-en);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--vermilion);
}
.feature__icon {
  width: 56px;
  height: 56px;
  margin-bottom: 1.4rem;
}
.feature__name {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 0.8rem;
}
.feature__desc {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 2;
}

/* ============ SCENE ============ */
.scene { padding: clamp(6rem, 14vh, 10rem) clamp(1.2rem, 6vw, 6rem); }
.scene__inner { max-width: 640px; margin: 0 auto; display: flex; flex-direction: column; }
.scene__title {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: 0.1em;
  margin-bottom: 3.5rem;
}
.scene__timeline {
  list-style: none;
  border-left: 1px solid rgba(24, 19, 17, 0.3);
}
.scene__step {
  position: relative;
  padding: 0 0 2.4rem 2rem;
}
.scene__step::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 0.7em;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--vermilion);
}
.scene__step:last-child { padding-bottom: 0; }
.scene__time {
  font-family: var(--serif-en);
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: var(--vermilion);
  display: block;
  margin-bottom: 0.2rem;
}
.scene__step p { color: var(--ink-soft); }

/* ============ DOWNLOAD ============ */
.download {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  text-align: center;
  padding: clamp(7rem, 16vh, 11rem) clamp(1.2rem, 6vw, 6rem);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.download__compass {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(120vw, 820px);
  transform: translate(-50%, -50%);
  opacity: 0.12;
  pointer-events: none;
}
.download__compass img {
  width: 100%;
  animation: slowSpin 90s linear infinite;
}
@keyframes slowSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.download__title {
  position: relative;
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: 0.12em;
  margin-bottom: 1.8rem;
}
.download__lead {
  position: relative;
  color: rgba(252, 251, 248, 0.72);
  margin-bottom: 3rem;
}
.download__actions { position: relative; }
.appstore-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
  color: var(--paper);
  border: 1px solid rgba(252, 251, 248, 0.5);
  border-radius: 14px;
  padding: 0.8rem 1.6rem;
  transition: background 0.3s, border-color 0.3s, transform 0.3s;
}
.appstore-badge:hover {
  background: var(--vermilion);
  border-color: var(--vermilion);
  transform: translateY(-2px);
}
.appstore-badge__logo { width: 2rem; height: 2rem; }
.appstore-badge__text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.35;
}
.appstore-badge__text small {
  font-family: var(--serif-en);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  opacity: 0.8;
}
.appstore-badge__text strong {
  font-family: var(--serif-en);
  font-size: 1.25rem;
  letter-spacing: 0.05em;
}
.download__domain {
  position: relative;
  margin-top: 3rem;
  font-family: var(--serif-en);
  letter-spacing: 0.5em;
  font-size: 0.85rem;
  color: rgba(252, 251, 248, 0.5);
}

/* ============ FOOTER ============ */
.footer {
  padding: 2.5rem clamp(1.2rem, 5vw, 4rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid rgba(24, 19, 17, 0.15);
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}
.footer__nav { display: flex; gap: 1.5rem; }
.footer__nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
}
.footer__nav a:hover { color: var(--vermilion); }
.footer__copy {
  width: 100%;
  font-size: 0.75rem;
  color: var(--ink-soft);
  letter-spacing: 0.1em;
}

/* ============ スクロール出現 ============ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ レスポンシブ ============ */
@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 6rem;
    gap: 1.5rem;
  }
  .hero__text { order: 2; }
  .hero__compass-wrap { order: 1; }
  .hero__actions { justify-content: center; }
  .hero__bearing { position: static; align-items: center; margin: 0 auto; }
  .concept__vertical { display: none; }
  .header__sub { display: none; }
  .hero__scrolldown { display: none; }
}

/* ============ モーション配慮 ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .marquee__track, .download__compass img, .hero__scrolldown-line { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .curtain { display: none; }
}