:root {
  --primary: #d32f2f; /* Deep Red for MMA/Combative vibe */
  --black: #595959;
  --dark-gray: #404040;
  --white: #ffffff;
  --gray: #f5f5f5;
  --text: #333333;
  --text-light: #777777;
  --font-base: 'Noto Sans JP', 'Inter', sans-serif;
  --font-heading: 'Inter', 'Noto Sans JP', sans-serif;
  --overlay-dark: rgba(89, 89, 89, 0.7);
  --header-height: 80px;
}

html, body {
  overflow-x: hidden;
  width: 100%;
  -webkit-text-size-adjust: 100%;
}

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

body, h1, h2, h3, h4, p, ul, li, figure {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-base);
  color: var(--text);
  background-color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

ul { list-style: none; }
a { text-decoration: none; color: inherit; transition: color 0.3s ease; }

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

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.section {
  padding: 100px 0;
}

.bg-light { background-color: var(--gray); }
.bg-dark { background-color: var(--black); color: var(--white); }

.text-center { text-align: center; }
.mb-4 { margin-bottom: 2rem; }
.mt-4 { margin-top: 2rem; }

.section-title {
  text-align: center;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: 0.05em;
  margin-bottom: 3rem;
  text-transform: uppercase;
  color: var(--black);
}

.section-title.left-align { text-align: left; }
.bg-dark .section-title { color: var(--white); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 16px 40px;
  font-weight: 700;
  border-radius: 4px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.1rem;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
  border: 2px solid var(--primary);
}
.btn-primary:hover {
  background-color: transparent;
  color: var(--primary);
}

.btn-outline {
  background-color: transparent;
  color: var(--black);
  border: 2px solid var(--black);
}
.btn-outline:hover {
  background-color: var(--black);
  color: var(--white);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background-color 0.4s ease, padding 0.4s ease;
  padding: 15px 0;
}

.header.scrolled {
  background-color: rgba(89, 89, 89, 0.95);
  backdrop-filter: blur(10px);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 90%;
  max-width: 1400px;
  margin: 0 auto;
}

/* Base Nav (Desktop) */
.nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav ul {
  display: flex;
  gap: 20px;
  align-items: center;
}

.nav a {
  color: var(--white);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  position: relative;
}

.nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0%;
  height: 2px;
  background-color: var(--primary);
  transition: width 0.3s ease;
}

.nav a:hover::after, .nav a.active::after {
  width: 100%;
}

.header:not(.scrolled) .nav a {
  text-shadow: 1px 1px 3px rgba(0,0,0,0.8);
}

.nav-btn {
  background-color: var(--primary);
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 4px;
  font-weight: 700;
  transition: background-color 0.3s ease;
}
.nav-btn:hover { background-color: #b71c1c; }
.nav-btn::after { display: none !important; }

/* Hamburger Menu styles for mobile */
.menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 20px;
  position: relative;
  z-index: 1010;
  flex-shrink: 0;
}
.menu-btn span {
  display: block;
  position: absolute;
  width: 100%;
  height: 2px;
  background-color: var(--white);
  transition: all 0.3s ease;
}
.menu-btn span:nth-child(1) { top: 0; }
.menu-btn span:nth-child(2) { top: 9px; }
.menu-btn span:nth-child(3) { bottom: 0; }
.menu-btn.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.menu-btn.open span:nth-child(2) { opacity: 0; }
.menu-btn.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* Pages padding for subpages */
body > main {
  padding-top: 0;
}
body.sub-page > main {
  padding-top: 0;
}
body.sub-page .header {
  background-color: var(--black);
}

/* Video MV Section */
.video-mv {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  background-color: var(--black);
}

.video-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-container video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
  pointer-events: none;
}

/* Slideshow styles */
.slideshow-container {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}
.slideshow-container .video-overlay {
  z-index: 2;
}
.slide {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  opacity: 0;
  transition: opacity 3s ease;
  z-index: 1;
}
.slide.active {
  opacity: 1;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Hide native video controls */
.video-container video::-webkit-media-controls,
.video-container video::-webkit-media-controls-start-playback-button {
  display: none !important;
  -webkit-appearance: none;
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.3) 100%);
}

.mv-content {
  position: absolute;
  top: 50%;
  left: 5%;
  width: 90%;
  transform: translateY(-50%);
  z-index: 10;
  max-width: 800px;
}

.catch-copy {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 20px;
}

.en-catch {
  color: var(--primary);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1rem, 3vw, 1.5rem);
  letter-spacing: 0.2em;
}

.ja-catch {
  color: var(--white);
  font-size: clamp(1.2rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.2;
  text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
}

.mv-sub {
  color: #dddddd;
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 600;
  text-shadow: 1px 1px 5px rgba(0,0,0,0.8);
}

/* Concept Section grid */
.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.concept-text p {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.concept-image img {
  border-radius: 8px;
}

/* Instagram Base (retained and refined) */
.instagram-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.ig-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  aspect-ratio: 1 / 1;
  display: block;
}
.ig-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.ig-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.7);
  color: var(--white);
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  opacity: 0; transition: opacity 0.3s ease; padding: 20px; text-align: center;
}
.ig-item:hover img { transform: scale(1.05); }
.ig-item:hover .ig-overlay { opacity: 1; }
.ig-likes { font-size: 1.2rem; font-weight: bold; margin-bottom: 10px; }
.ig-likes i { color: #ed4956; margin-right: 5px; }
.ig-text {
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;  
  overflow: hidden;
}

/* Sticky CTA */
.sticky-cta {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  width: 90%;
  max-width: 400px;
  display: flex;
  gap: 15px;
  z-index: 999;
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  pointer-events: none;
}
.sticky-cta.is-visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.cta-btn {
  flex: 1; display: flex; justify-content: center; align-items: center; gap: 8px;
  padding: 15px 0; border-radius: 50px; font-weight: bold; color: var(--white) !important;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.15); border: 1px solid rgba(255,255,255,0.2);
}
.btn-line { background-color: rgba(6, 199, 85, 0.85); }
.btn-reserve { background-color: rgba(211, 47, 47, 0.85); }

/* Footer */
.footer {
  background-color: var(--black);
  color: var(--white);
  padding: 80px 0 20px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
.footer-logo { 
  margin-bottom: 20px; 
  filter: invert(1); 
  mix-blend-mode: screen; 
}
.footer-info p { color: #cccccc; margin-bottom: 15px; }
.sns-links { display: flex; gap: 15px; }
.sns-links a { font-size: 1.5rem; color: var(--white); }
.sns-links a:hover { color: var(--primary); }
.footer-links h3 { font-size: 1.2rem; margin-bottom: 20px; border-bottom: 2px solid var(--primary); display: inline-block; padding-bottom: 5px; }
.footer-links ul { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { color: #cccccc; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { text-align: center; color: #cccccc; border-top: 1px solid rgba(255,255,255,0.2); padding-top: 20px; font-size: 0.9rem; }

/* Responsive Overrides */
@media (max-width: 992px) {
  .concept-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

.site-wrapper {
  overflow: hidden;
  width: 100%;
  max-width: 100vw;
  position: relative;
}

@media (max-width: 768px) {
  .btn { 
    padding: 12px 20px; 
    font-size: 1rem; 
    width: 100%; 
  }
  .header { padding: 15px 0; }
  .menu-btn { display: block; }
  
  .nav {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100vh;
    background-color: rgba(89, 89, 89, 0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 40px;
    padding-bottom: 80px; /* Visually pushes the menu center upwards */
    transform: translateY(-100%);
    transition: transform 0.4s ease;
  }
  .nav.open { transform: translateY(0); }
  .nav ul { flex-direction: column; gap: 30px; text-align: center; }
  .nav a { font-size: 1.2rem; }
  
  .instagram-grid {
    grid-template-columns: repeat(2, 1fr);
    display: flex; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 20px;
    width: 100%;
  }
  .ig-item { flex: 0 0 calc(70% - 10px); scroll-snap-align: start; }
}

@media (min-width: 1069px) {
  .menu-btn { display: none; }
}

@media (min-width: 769px) {
  .sticky-cta { display: none; }
  .sp-br { display: none; }
}

/* Utility / Subpage bases */
.page-header {
  background-color: var(--black);
  color: var(--white);
  padding: 160px 0 60px;
  text-align: center;
}
.page-title {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 5vw, 3rem);
  font-weight: 900;
  letter-spacing: 0.05em;
  word-break: break-word;
  hyphens: auto;
}