/* ========================================
   O Awaji Shima — Coming Soon Launch Page
   Brand: #b54731 / #eba665
   ======================================== */

:root {
  --color-primary: #b54731;
  --color-accent: #eba665;
  --color-dark: #1a0f0c;
  --color-light: #faf6f0;
  --font-serif: "Cormorant", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans: "Montserrat", "Hiragino Sans", "Yu Gothic", sans-serif;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --kv-logo-center: 40vh;
  --kv-logo-size: clamp(72px, 16vw, 120px);
  --kv-gap: 1.75rem;
  --kv-text-top: calc(var(--kv-logo-center) + var(--kv-logo-size) / 2 + var(--kv-gap));
  --kv-side-padding: clamp(1.5rem, 4vw, 3rem);
  --kv-text-width: 520px;
  --logo-compact-size: clamp(44px, 8vw, 64px);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html.is-scroll-locked,
html.is-scroll-locked body {
  overflow: hidden;
}

body {
  font-family: var(--font-sans);
  color: var(--color-light);
  background: var(--color-dark);
  overflow-x: hidden;
}

/* ---- Language Toggle ---- */

.lang-toggle {
  position: fixed;
  top: clamp(1.25rem, 3vw, 2rem);
  right: var(--kv-side-padding);
  z-index: 120;
  padding: 0.45rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-indent: 0.2em;
  color: var(--color-light);
  background: rgba(26, 15, 12, 0.35);
  border: 1px solid rgba(250, 246, 240, 0.4);
  border-radius: 9999px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s;
}

.lang-toggle:hover {
  border-color: var(--color-light);
  background: rgba(26, 15, 12, 0.5);
}

.lang-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---- KV / Hero ---- */

.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

.hero__video-wrap {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---- Intro Animation (slide left) ---- */

.intro {
  position: fixed;
  width: 100vw;
  height: 100svh;
  z-index: 100;
  pointer-events: none;
}

.intro::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: calc(100vw + 20vh);
  height: 100svh;
  background-color: var(--color-primary);
  clip-path: polygon(0 0, 100% 0, 92% 100%, 0 100%);
  z-index: 1;
  display: block;
  transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.intro.is-active {
  z-index: 50;
}

.intro.is-active::before {
  transform: translateX(-100%);
}

.intro.is-end {
  z-index: -1;
}

.intro__logo {
  position: fixed;
  top: var(--kv-logo-center);
  left: 50%;
  z-index: 110;
  width: var(--kv-logo-size);
  height: auto;
  display: block;
  opacity: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
  filter: drop-shadow(0 4px 24px rgba(0, 0, 0, 0.45));
}

.intro__logo.is-active {
  opacity: 1;
}

.intro__logo.is-active.is-swapping {
  opacity: 0;
}

.intro__logo.is-active.is-compact {
  top: clamp(0.85rem, 2.5vw, 1.5rem);
  left: var(--kv-side-padding);
  width: var(--logo-compact-size);
  transform: translate(0, 0);
}

.intro__inner {
  position: fixed;
  top: var(--kv-text-top);
  left: 50%;
  z-index: 110;
  width: min(var(--kv-text-width), calc(100vw - var(--kv-side-padding) * 2));
  transform: translateX(-50%);
  pointer-events: none;
  transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              visibility 0.5s;
}

.intro__inner.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.intro__text {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.intro__inner.is-active .intro__text {
  opacity: 1;
  transform: translateY(0);
}

.intro__label {
  display: block;
  font-family: var(--font-sans);
  font-size: clamp(0.9rem, 2.8vw, 1.25rem);
  font-weight: 700;
  letter-spacing: 0.22em;
  text-indent: 0.22em;
  color: var(--color-light);
  margin-bottom: 0.5rem;
}

.intro__brand {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 3.5vw, 1.75rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-indent: 0.15em;
  line-height: 1.35;
  color: var(--color-light);
  text-shadow: 0 2px 40px rgba(0, 0, 0, 0.4);
  margin: 0;
}

/* ---- Hero Content (over video) ---- */

.hero__content {
  position: absolute;
  inset: 0;
  z-index: 10;
  pointer-events: none;
}

.hero__content.is-visible .hero__scroll {
  opacity: 1;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  pointer-events: auto;
  font-family: inherit;
  animation: scrollHint 1s var(--ease-out-expo) 4.5s forwards;
}

.hero__scroll:hover span,
.hero__scroll:focus-visible span {
  color: rgba(250, 246, 240, 0.85);
}

.hero__scroll:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.hero__scroll span {
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: rgba(250, 246, 240, 0.5);
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollHint {
  to { opacity: 1; }
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 0.6; }
  50% { transform: scaleY(0.6); opacity: 1; }
}

/* ---- Story Section ---- */

.u-pc {
  display: none;
}

.u-sp {
  display: inline;
}

@media (min-width: 768px) {
  .u-pc {
    display: inline;
  }

  .u-sp {
    display: none;
  }
}

.story {
  background: var(--color-light);
  color: var(--color-dark);
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 5vw, 4rem) clamp(5rem, 12vw, 9rem);
}

.story__inner {
  max-width: 720px;
  margin: 0 auto;
}

.story__lead {
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.8vw, 1.25rem);
  line-height: 2.4;
  letter-spacing: 0.1em;
  text-align: center;
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
  color: var(--color-dark);
}

.story__char {
  opacity: 0;
}

.story__lead.is-revealed .story__char {
  animation: story-char-fade 0.7s var(--ease-out-expo) forwards;
  animation-delay: calc(var(--char-index) * 0.08s);
}

@keyframes story-char-fade {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.story__highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.story__wave {
  margin-bottom: clamp(3rem, 6vw, 5rem);
  color: rgba(181, 71, 49, 0.35);
  font-size: clamp(1.6rem, 5vw, 2.25rem);
  line-height: 1;
  overflow: hidden;
  white-space: nowrap;
  text-align: center;
}

.story__wave::before {
  content: "〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎〰︎";
  display: inline-block;
  transform: scaleY(1.3);
  letter-spacing: 0.12em;
}

.story__highlight {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  padding: 1.5rem 0.5rem;
  opacity: 0;
}

.story__highlights.is-revealed .story__highlight {
  animation: story-highlight-fade 0.7s var(--ease-out-expo) forwards;
  animation-delay: calc(var(--item-index) * 0.5s);
}

@keyframes story-highlight-fade {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.story__highlight-num {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 400;
  color: var(--color-primary);
  line-height: 1;
}

.story__highlight-icon {
  font-size: clamp(2rem, 6vw, 2.75rem);
  color: var(--color-primary);
  line-height: 1;
}

@media (min-width: 768px) {
  .story__highlight-icon {
    font-size: clamp(1.5rem, 4vw, 2rem);
  }
}

.story__highlight-label {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: rgba(26, 15, 12, 0.6);
}

.story__body {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.story__body p {
  font-size: 0.9rem;
  line-height: 2.4;
  letter-spacing: 0.06em;
  color: rgba(26, 15, 12, 0.75);
}

.story__closing {
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 2.5vw, 1.1rem) !important;
  line-height: 2.2 !important;
  letter-spacing: 0.1em !important;
  color: var(--color-dark) !important;
  text-align: center;
  padding-top: 1.5rem;
}

/* ---- Opening Soon ---- */

.opening {
  background: var(--color-primary);
  padding: clamp(4rem, 10vw, 7rem) clamp(1.5rem, 5vw, 4rem);
  text-align: center;
}

.opening__inner {
  max-width: 600px;
  margin: 0 auto;
}

.opening__label {
  font-size: clamp(0.7rem, 2vw, 0.8rem);
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  color: var(--color-accent);
  margin-bottom: 2rem;
}

.opening__title {
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 400;
  line-height: 2.2;
  letter-spacing: 0.12em;
  color: var(--color-light);
}

.opening__social {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  list-style: none;
  margin-top: 2rem;
}

.opening__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  color: var(--color-light);
  border: 1px solid rgba(250, 246, 240, 0.4);
  border-radius: 50%;
  transition: color 0.3s, border-color 0.3s, background 0.3s;
}

.opening__social a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(250, 246, 240, 0.1);
}

.opening__social a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.opening__social svg {
  width: 1.15rem;
  height: 1.15rem;
}

.opening__line {
  width: 60px;
  height: 1px;
  background: var(--color-accent);
  margin: 2.5rem auto 0;
  opacity: 0.6;
}

/* ---- Footer ---- */

.footer {
  background: var(--color-dark);
  padding: 2rem clamp(1.5rem, 5vw, 4rem);
  text-align: center;
}

.footer__brand {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: rgba(250, 246, 240, 0.5);
  margin-bottom: 0.75rem;
}

.footer__copy {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(250, 246, 240, 0.35);
}

/* ---- Reduced Motion ---- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .story__char {
    opacity: 1;
    animation: none !important;
  }

  .story__highlight {
    opacity: 1;
    animation: none !important;
  }
}