/* 
 * Bestie Design System 
 * Black (#000000) & Pink (#ff4da6)
 */

:root {
  --primary: #ff4da6;
  --primary-glow: rgba(255, 77, 166, 0.3);
  --bg-dark: #000000;
  --bg-card: #0d0d0d;
  --bg-nav: rgba(0, 0, 0, 0.85);
  --text-white: #ffffff;
  --text-gray: #b0b0b0;
  --font-main: 'Inter', 'Noto Sans JP', sans-serif;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 100px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title span {
  display: block;
  font-size: 0.9rem;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.2rem;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.section-title h2 {
  font-size: 2.2rem;
  font-weight: 700;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 2px;
  background-color: var(--primary);
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--bg-nav);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo a {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.05rem;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-white);
  text-transform: uppercase;
}

.nav-links a:hover {
  color: var(--primary);
}

.btn-cta {
  background-color: var(--primary);
  color: white;
  padding: 12px 24px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 4px 15px var(--primary-glow);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow);
  background-color: #ff6bb7;
}

/* Hero */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('../img/line_oa_chat_260304_113054.jpg');
  background-size: cover;
  background-position: center;
}

.hero-content {
  max-width: 800px;
  padding: 0 20px;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 20px;
  background: linear-gradient(to right, #ffffff, var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-gray);
  margin-bottom: 40px;
  letter-spacing: 0.1em;
}

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

.concept-text h3 {
  font-size: 1.8rem;
  margin-bottom: 25px;
  color: var(--primary);
}

.concept-text p {
  margin-bottom: 20px;
  color: var(--text-gray);
}

.concept-image img {
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  border: 1px solid rgba(255, 77, 166, 0.2);
}

/* System */
.bg-darker {
  background-color: var(--bg-card);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.03);
  padding: 40px;
  border-radius: 15px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--primary);
  transform: translateY(-10px);
  background: rgba(255, 77, 166, 0.05);
}

.feature-card i {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.4rem;
  margin-bottom: 15px;
}

.feature-card .price {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-gray);
  font-size: 0.95rem;
}

/* Gallery */
/* Gallery Carousel */
.gallery-carousel {
  position: relative;
  overflow: hidden;
  width: 100%;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.carousel-track {
  display: flex;
  transition: transform 0.8s ease-in-out;
  flex-wrap: nowrap;
}

.carousel-slide {
  flex: 0 0 33.3333%;
  aspect-ratio: 4/3;
  padding: 0 10px;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .carousel-slide {
    flex: 0 0 100%;
  }
}

.carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Recruit */
.recruit-box {
  background: linear-gradient(135deg, #1a1a1a, #000000);
  padding: 60px;
  border-radius: 20px;
  border: 1px solid rgba(255, 77, 166, 0.3);
  text-align: center;
}

.recruit-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 40px 0;
  text-align: left;
}

.recruit-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
}

.recruit-list li i {
  color: var(--primary);
}

/* Info & Access */
.info-container {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 40px;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table th, .info-table td {
  padding: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-align: left;
}

.info-table th {
  width: 140px;
  color: var(--primary);
  font-weight: 700;
}

.contact-card {
  background-color: #111;
  padding: 40px;
  border-radius: 15px;
  text-align: center;
  border: 1px solid var(--primary);
}

.contact-card h3 {
  margin-bottom: 20px;
}

.phone-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  margin: 20px 0;
}

.access-map iframe {
  width: 100%;
  height: 450px;
  border: 0;
  border-radius: 12px;
  margin-top: 40px;
  filter: grayscale(1) invert(1) contrast(1.2);
}

/* Footer */
footer {
  padding: 60px 0;
  background-color: #050505;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-logo {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 30px;
  display: block;
}

.footer-logo span {
  color: var(--primary);
}

.sns-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 30px;
}

.sns-links a {
  font-size: 1.5rem;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
}

.sns-links a:hover {
  background: var(--primary);
  color: white;
}

.copyright {
  font-size: 0.85rem;
  color: var(--text-gray);
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.appear {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 991px) {
  .hero h1 { font-size: 3rem; }
  .concept-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .info-container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .section { padding: 60px 0; }
  .features-grid { grid-template-columns: 1fr; }
  .recruit-list { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.5rem; }
}