/* ===== CSS Variables ===== */
:root {
  --color-main: #E8D960;
  --color-orange: #E89A2F;
  --color-blue: #7BB8D4;
  --color-text: #2C2C2C;
  --color-bg: #FFFBF0;
  --color-white: #FFFFFF;

  --font-base: 'Noto Sans JP', sans-serif;

  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 32px;
  --spacing-lg: 64px;
  --spacing-xl: 96px;

  --max-width: 900px;
  --radius: 16px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

picture {
  display: block;
  width: 100%;
}

.sp-br {
  display: none;
}

@media (max-width: 767px) {
  .sp-br {
    display: block;
  }
}

/* ===== Animation base classes ===== */
.js-fade-in {
  opacity: 0;
  transition: opacity 0.8s ease;
}

.js-fade-in.is-visible {
  opacity: 1;
}

.js-fade-in-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.js-fade-in-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js-scroll-fade {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.js-scroll-fade.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js-scroll-from-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.js-scroll-from-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.js-scroll-from-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.js-scroll-from-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.js-scroll-scale {
  opacity: 0;
  transform: scale(0.94);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.js-scroll-scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* ===== Hero Animations ===== */
.js-hero-logo {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 2.2s ease, transform 2.2s ease;
}
.js-hero-logo.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js-hero-tagline {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 2.0s ease, transform 2.0s ease;
  transition-delay: 0.55s;
}
.js-hero-tagline.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js-hero-illust {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 2.4s ease, transform 2.4s ease;
  transition-delay: 0.25s;
}
.js-hero-illust.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100svh;
  background-color: var(--color-main);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-sm) calc(var(--spacing-lg) + 8px);
  overflow: hidden;
}


.hero__left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.hero__logo {
  width: min(320px, 88%);
  display: block;
  margin: 0 auto;
}

.hero__tagline {
  text-align: center;
}

.hero__tagline-main {
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--color-text);
}

.hero__tagline-sub {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text);
  opacity: 0.7;
}

.hero__illust {
  width: min(380px, 88%);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--spacing-sm);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero__scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: var(--color-text);
  opacity: 0.4;
  animation: scrollLine 1.8s ease-in-out infinite;
  transform-origin: top center;
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); opacity: 0; }
  40%  { transform: scaleY(1); opacity: 0.4; }
  100% { transform: scaleY(1); opacity: 0; }
}

@media (min-width: 1024px) {
  .hero {
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-md) calc(var(--spacing-md) + 8px);
  }

  .hero__logo {
    width: min(400px, 44vw);
  }

  .hero__tagline-main {
    font-size: 1.05rem;
  }

  .hero__tagline-sub {
    font-size: 0.88rem;
  }

  .hero__illust {
    width: min(460px, 44vw);
  }
}

/* ===== Wave Dividers ===== */
.wave-divider {
  display: block;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  margin-top: -1px;
  margin-bottom: -1px;
}

.wave-divider svg {
  display: block;
  width: 100%;
  height: 56px;
}

@media (max-width: 767px) {
  .wave-divider svg {
    width: 260%;
  }
}

@media (min-width: 768px) {
  .wave-divider svg {
    height: 72px;
  }
}

.wave-divider--to-bg {
  background-color: var(--color-main);
}

.wave-divider--to-main {
  background-color: var(--color-bg);
}

.wave-divider--to-text {
  background-color: var(--color-main);
}

/* ===== Concept ===== */
.concept {
  background-color: var(--color-bg);
  padding: var(--spacing-xl) var(--spacing-sm) calc(var(--spacing-xl) + 50px);
  position: relative;
  overflow: hidden;
}

@media (min-width: 1024px) {
  .concept {
    padding: var(--spacing-xl) var(--spacing-sm) calc(var(--spacing-xl) - 40px);
  }
}

.concept__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.concept__lines {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
}

.concept__line {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 500;
  line-height: 1.8;
  text-align: center;
  color: var(--color-text);
}

.concept__char {
  position: absolute;
  pointer-events: none;
  width: 80px;
}

.concept__char--left {
  left: 0;
  bottom: 0;
}

.concept__char--right {
  right: 0;
  bottom: 0;
}

@media (max-width: 767px) {
  .concept__char--right {
    width: 122px;
    right: 10px;
  }
}

@media (min-width: 768px) {
  .concept__char {
    width: clamp(100px, 14vw, 160px);
  }
}

@media (min-width: 1024px) {
  .concept__char--left {
    left: calc(50% - 510px);
    bottom: 0;
    width: 150px;
  }

  .concept__char--right {
    right: calc(50% - 510px);
    top: 40px;
    bottom: auto;
    width: 180px;
  }
}

/* ===== Info ===== */
.info {
  background-color: var(--color-main);
  padding: var(--spacing-xl) var(--spacing-sm) calc(var(--spacing-xl) - 40px);
  position: relative;
  overflow: hidden;
}

.info__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.info__heading {
  font-size: clamp(1.4rem, 4vw, 2rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text);
}

.info__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.info__card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.info__card-icon {
  width: 36px;
  height: 36px;
  display: block;
  margin: 0 auto var(--spacing-xs);
  color: var(--color-text);
  opacity: 0.7;
}

.info__card-btn {
  display: inline-block;
  margin-top: var(--spacing-sm);
  padding: 8px 18px;
  background: var(--color-main);
  border: none;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text);
  transition: opacity 0.2s ease;
  line-height: 1.4;
}

.info__card-btn:hover {
  opacity: 0.75;
}

.info__card-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-orange);
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-xs);
}

.info__card-value {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.6;
}

.info__card-value small {
  font-weight: 400;
  font-size: 0.85rem;
  color: #666;
}

.info__char {
  position: absolute;
  display: none;
}

@media (max-width: 767px) {
  .info {
    padding-bottom: calc(var(--spacing-xl) + 56px);
  }

  .info__char {
    display: block;
  }

  .info__char--left {
    left: 0;
    bottom: 0;
    width: 104px;
  }

  .info__char--right {
    right: 0;
    bottom: 5px;
    width: 88px;
  }
}

@media (min-width: 768px) {
  .info__cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .info__char {
    display: block;
    width: 140px;
  }

  .info__char--left {
    left: 2%;
    bottom: 0;
  }

  .info__char--right {
    right: 2%;
    top: var(--spacing-lg);
  }
}

/* ===== Photo Call ===== */
.photo-call {
  background-color: var(--color-bg);
  padding: var(--spacing-xl) var(--spacing-sm) calc(var(--spacing-xl) - 40px);
}

.photo-call__inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.photo-call__label {
  display: inline-block;
  padding: 4px 16px;
  border-radius: 999px;
  background: var(--color-main);
  color: var(--color-text);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-xs);
}

.photo-call__heading {
  font-size: clamp(1.3rem, 4vw, 1.8rem);
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.photo-call__text {
  font-size: 0.95rem;
  line-height: 1.9;
  margin-bottom: var(--spacing-sm);
}

.photo-call__period {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-orange);
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-md);
}

.photo-call__btn {
  display: inline-block;
  padding: 14px 32px;
  background: var(--color-orange);
  border-radius: 999px;
  color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: opacity 0.2s ease;
}

.photo-call__btn:hover {
  opacity: 0.85;
}

.photo-call__note {
  margin-top: var(--spacing-xs);
  font-size: 0.75rem;
  color: #666;
}

/* ===== Instagram ===== */
.instagram {
  background-color: var(--color-main);
  padding: var(--spacing-xl) var(--spacing-sm) calc(var(--spacing-xl) - 40px);
}

.instagram__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: center;
}

.instagram__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-white);
  border-radius: var(--radius);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.instagram__link:hover,
.instagram__link:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.12);
}

.instagram__link--soon {
  cursor: default;
  opacity: 0.5;
}

.instagram__link--soon:hover {
  transform: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.instagram__icon {
  width: 40px;
  height: 40px;
}

.instagram__text {
  font-size: 0.9rem;
  color: #555;
}

.instagram__handle {
  font-size: 1.1rem;
  font-weight: 700;
}

/* ===== Footer ===== */
.footer {
  background-color: var(--color-text);
  color: var(--color-white);
  padding: var(--spacing-md) var(--spacing-sm);
  text-align: center;
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer__event {
  font-size: 1rem;
  font-weight: 700;
}

.footer__org {
  font-size: 0.8rem;
  opacity: 0.6;
}