/* =============================================
   NOVA STREET — LP Style  (with images)
   Mobile First / Korean Street Casual
   ============================================= */

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

:root {
  --white:    #ffffff;
  --black:    #111111;
  --gray-50:  #fafafa;
  --gray-100: #f4f4f4;
  --gray-200: #e4e4e4;
  --gray-300: #c8c8c8;
  --gray-500: #888888;
  --gray-700: #444444;
  --beige:    #f0ece5;
  --beige-md: #e0d8ce;
  --line:     #06C755;
  --insta-gr: linear-gradient(135deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);

  --font-en: 'Helvetica Neue', 'Arial', sans-serif;
  --font-ja: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic', 'Meiryo', sans-serif;

  --sp:     20px;
  --max:    1000px;
  --gap:    72px;
  --radius: 3px;
  --ease:   0.3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-ja);
  color: var(--black);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
}

/* ===== LAYOUT ===== */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--sp);
}

/* ===== TYPOGRAPHY HELPERS ===== */
.section-label {
  font-family: var(--font-en);
  font-size: 9px;
  letter-spacing: 0.35em;
  color: var(--gray-500);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-heading {
  font-size: clamp(20px, 5vw, 28px);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 36px;
  line-height: 1.35;
}

/* ===== SCROLL FADE ===== */
.fade-section {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}
.fade-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 13px 24px;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: opacity var(--ease), background var(--ease);
  white-space: nowrap;
  cursor: pointer;
}

.btn--primary      { background: var(--black); color: var(--white); }
.btn--primary:hover { opacity: 0.75; }

.btn--outline      { border: 1.5px solid rgba(255,255,255,0.7); color: var(--white); }
.btn--outline:hover { background: rgba(255,255,255,0.1); }

.btn--white        { background: var(--white); color: var(--black); }
.btn--white:hover  { opacity: 0.85; }

.btn--outline-white      { border: 1.5px solid rgba(255,255,255,0.7); color: var(--white); }
.btn--outline-white:hover { background: rgba(255,255,255,0.1); }

.btn--line         { background: var(--line); color: var(--white); }
.btn--line:hover   { opacity: 0.85; }

.btn--insta        { background: var(--insta-gr); color: var(--white); }
.btn--insta:hover  { opacity: 0.85; }

.btn--large { padding: 16px 30px; font-size: 13px; }


/* =============================================
   HEADER
   ============================================= */
.header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(17,17,17,0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 54px;
  padding: 0 var(--sp);
  max-width: var(--max);
  margin: 0 auto;
}

.nav__logo {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--white);
  text-transform: uppercase;
}

.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 32px;
  height: 32px;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  border-radius: 1px;
  transition: transform var(--ease), opacity var(--ease);
  transform-origin: center;
}
.nav__hamburger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav__menu {
  display: none;
  position: fixed;
  top: 54px; left: 0;
  width: 100%;
  background: rgba(14,14,14,0.98);
  flex-direction: column;
  list-style: none;
  padding: 16px 0 28px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.nav__menu.is-open { display: flex; }

.nav__link {
  display: block;
  padding: 15px var(--sp);
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gray-300);
  text-transform: uppercase;
  transition: color var(--ease);
}
.nav__link:hover { color: var(--white); }

.nav__link--cta {
  margin: 10px var(--sp) 0;
  padding: 12px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius);
  text-align: center;
  color: var(--white);
}


/* =============================================
   HERO  ← 実写画像に変更
   ============================================= */
.hero {
  position: relative;
  min-height: 100svh;
  min-height: 100vh;
  overflow: hidden;
  padding-top: 54px;
}

/* 画像コンテナ */
.hero__visual {
  position: absolute;
  inset: 0;
}

/* 実写画像 */
.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* テキスト可読性確保オーバーレイ */
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(8,8,8,0.60) 0%,
    rgba(8,8,8,0.38) 45%,
    rgba(8,8,8,0.65) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(100svh - 54px);
  min-height: calc(100vh - 54px);
  padding: 48px var(--sp) 110px;
}

.hero__label {
  font-family: var(--font-en);
  font-size: 9px;
  letter-spacing: 0.35em;
  color: var(--gray-300);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero__brand {
  font-family: var(--font-en);
  font-size: clamp(44px, 14vw, 88px);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--white);
  line-height: 0.95;
  margin-bottom: 24px;
  text-transform: uppercase;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero__catch {
  font-size: clamp(18px, 5vw, 28px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.6;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
  text-shadow: 0 1px 8px rgba(0,0,0,0.4);
}

.hero__sub {
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  line-height: 1.9;
  margin-bottom: 36px;
  letter-spacing: 0.04em;
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hero__cta .btn { width: fit-content; }

.hero__scroll {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.hero__scroll span {
  font-family: var(--font-en);
  font-size: 8px;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
}
.hero__scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollPulse 2s ease infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.15); }
}


/* =============================================
   CONCEPT
   ============================================= */
.concept {
  padding: var(--gap) 0;
  background: var(--beige);
}

.concept__inner {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.concept__heading {
  font-size: clamp(22px, 5.5vw, 32px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}

.concept__text {
  font-size: 14px;
  line-height: 2;
  color: var(--gray-700);
}
.concept__text--en {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gray-500);
  margin-top: 14px;
  line-height: 1.8;
}

/* 画像ラッパー
   contain を使うため、背景色をセクション背景（ベージュ）に合わせる */
.concept__visual-wrap {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.10);
  aspect-ratio: 4 / 3;
  background: var(--beige);
}

/* contain で画像全体を表示。トリミングせず世界観を自然に見せる */
.concept__visual-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}


/* =============================================
   CATEGORY  ← 実写画像に変更
   ============================================= */
.category {
  padding: var(--gap) 0;
}

.category__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.category__card {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--gray-100);
  display: flex;
  flex-direction: column;
  transition: transform var(--ease);
}
.category__card:hover { transform: translateY(-3px); }

/* 画像ラッパー — アスペクト比を固定してジャンプ防止 */
.category__img-wrap {
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: var(--gray-200);
}

/* 実写画像 */
.category__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s ease;
}
.category__card:hover .category__img {
  transform: scale(1.05);
}

.category__info {
  padding: 12px 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.category__tag {
  font-family: var(--font-en);
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--gray-500);
  text-transform: uppercase;
}

.category__name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-top: 2px;
}

.category__desc {
  font-size: 11px;
  color: var(--gray-700);
  line-height: 1.7;
  margin-bottom: 10px;
}

.category__btn {
  padding: 10px 14px;
  font-size: 10px;
  width: 100%;
  margin-top: auto;
}


/* =============================================
   COORDINATE  ← 実写画像に変更
   ============================================= */
.coordinate {
  padding: var(--gap) 0;
  background: var(--gray-100);
}

.coordinate__list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.coordinate__item {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}

/* 画像ラッパー
   スマホ：4/5 の縦長比率にして人物全体が見えやすくする */
.coordinate__img-wrap {
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--gray-200);
}

/* 実写画像
   object-position: center top で頭部・上半身を優先表示 */
.coordinate__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.6s ease;
}
.coordinate__item:hover .coordinate__img {
  transform: scale(1.03);
}

.coordinate__body {
  padding: 20px var(--sp) 24px;
}

.coordinate__num {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--gray-500);
  margin-bottom: 6px;
}

.coordinate__title {
  font-family: var(--font-en);
  font-size: clamp(18px, 4.5vw, 22px);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.coordinate__desc {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.9;
  margin-bottom: 16px;
}

.coordinate__link {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--black);
  border-bottom: 1px solid var(--black);
  padding-bottom: 2px;
  display: inline-block;
  transition: opacity var(--ease);
}
.coordinate__link:hover { opacity: 0.5; }


/* =============================================
   FEATURES
   ============================================= */
.features {
  padding: var(--gap) 0;
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px 20px;
}

.features__icon {
  width: 36px;
  height: 36px;
  color: var(--black);
  margin-bottom: 12px;
}

.features__title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
  line-height: 1.5;
}

.features__text {
  font-size: 12px;
  color: var(--gray-700);
  line-height: 1.85;
}


/* =============================================
   CTA SECTION
   ============================================= */
.cta-section {
  padding: var(--gap) 0;
  background: var(--beige);
  text-align: center;
}

.cta-section__heading {
  font-family: var(--font-en);
  font-size: clamp(18px, 4.5vw, 26px);
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.cta-section__text {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 2;
  margin-bottom: 36px;
}

.cta-section__buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}


/* =============================================
   FAQ
   ============================================= */
.faq {
  padding: var(--gap) 0;
}

.faq__list { border-top: 1px solid var(--gray-200); }
.faq__item  { border-bottom: 1px solid var(--gray-200); }

.faq__q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-align: left;
  gap: 16px;
  transition: color var(--ease);
}
.faq__q:hover { color: var(--gray-700); }

.faq__icon {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 300;
  color: var(--gray-500);
  flex-shrink: 0;
  transition: transform var(--ease);
  line-height: 1;
  user-select: none;
}
.faq__q[aria-expanded="true"] .faq__icon {
  transform: rotate(45deg);
  color: var(--black);
}

.faq__a {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.38s ease;
}
.faq__a.is-open { max-height: 400px; }

.faq__a-inner { padding-bottom: 22px; }
.faq__a-inner p {
  font-size: 13px;
  color: var(--gray-700);
  line-height: 1.95;
}


/* =============================================
   FINAL CTA  ← 実写画像に変更
   ============================================= */
.final-cta {
  position: relative;
  padding: 88px 0;
  text-align: center;
  overflow: hidden;
}

/* 画像ラッパー */
.final-cta__img-wrap {
  position: absolute;
  inset: 0;
}

/* 実写画像 */
.final-cta__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* テキスト可読性確保オーバーレイ */
.final-cta__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    155deg,
    rgba(8,8,8,0.72) 0%,
    rgba(20,16,12,0.65) 50%,
    rgba(8,8,8,0.72) 100%
  );
}

.final-cta__inner {
  position: relative;
  z-index: 2;
}

.final-cta__label {
  font-family: var(--font-en);
  font-size: 9px;
  letter-spacing: 0.35em;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.final-cta__catch {
  font-size: clamp(20px, 5.5vw, 30px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.65;
  letter-spacing: 0.04em;
  margin-bottom: 36px;
  text-shadow: 0 1px 12px rgba(0,0,0,0.4);
}

.final-cta__buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}


/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--black);
  color: var(--gray-300);
  padding: 52px 0 96px;
  text-align: center;
}

.footer__logo {
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--white);
  margin-bottom: 24px;
  text-transform: uppercase;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 18px;
  margin-bottom: 28px;
}
.footer__nav a {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--gray-500);
  transition: color var(--ease);
}
.footer__nav a:hover { color: var(--gray-300); }

.footer__note {
  font-size: 11px;
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: 14px;
}

.footer__copy {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--gray-500);
}


/* =============================================
   STICKY CTA（スマホ下部固定）
   ============================================= */
.sticky-cta {
  position: fixed;
  bottom: 0; left: 0;
  width: 100%;
  z-index: 90;
  display: flex;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
}
.sticky-cta.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.sticky-cta__btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 12px 6px;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: opacity var(--ease);
}
.sticky-cta__btn:hover { opacity: 0.82; }

.sticky-cta__btn--primary {
  background: var(--black);
  color: var(--white);
  flex: 2;
  font-size: 11px;
}
.sticky-cta__btn--line  { background: var(--line);       color: var(--white); }
.sticky-cta__btn--insta { background: var(--insta-gr);   color: var(--white); }


/* =============================================
   RESPONSIVE — TABLET / DESKTOP (768px+)
   ============================================= */
@media (min-width: 768px) {
  :root {
    --sp:  40px;
    --gap: 96px;
  }

  /* nav */
  .nav__hamburger { display: none; }
  .nav__menu {
    display: flex !important;
    position: static;
    flex-direction: row;
    background: none;
    align-items: center;
    padding: 0;
    gap: 2px;
    border: none;
  }
  .nav__link { padding: 8px 12px; font-size: 11px; }
  .nav__link--cta { margin: 0; border-radius: var(--radius); }

  /* hero */
  .hero__cta { flex-direction: row; }
  .hero__content { padding-bottom: 60px; }

  /* concept */
  .concept__inner {
    flex-direction: row;
    align-items: center;
    gap: 52px;
  }
  .concept__text-block { flex: 1; }

  /* PC時：テキスト右横に配置。contain のため少し高さを抑えてバランスを取る */
  .concept__visual-wrap {
    flex: 1;
    aspect-ratio: unset;
    max-height: 260px;
    border-radius: 8px;
  }

  /* category — 4列グリッド */
  .category__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
  .category__btn { width: auto; }

  /* coordinate — 画像＋テキスト横並び */
  .coordinate__list {
    gap: 48px;
  }

  .coordinate__item {
    flex-direction: row;
    border-radius: var(--radius);
  }
  .coordinate__item--reverse { flex-direction: row-reverse; }

  .coordinate__img-wrap {
    flex: 1;
    aspect-ratio: unset;
    min-height: 320px;
  }

  /* PC時：横並びなので object-position を center に戻す */
  .coordinate__img {
    object-position: center;
  }

  .coordinate__body {
    flex: 1;
    padding: 36px 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  /* features */
  .features__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  /* cta section */
  .cta-section__buttons {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
  }

  /* final cta */
  .final-cta__buttons {
    flex-direction: row;
    justify-content: center;
  }

  /* sticky cta — PC非表示 */
  .sticky-cta { display: none !important; }

  /* footer */
  .footer { padding-bottom: 52px; }
}

@media (min-width: 1024px) {
  :root { --sp: 56px; }
}