/* 
  ======================================================
  Base Variables & Reset
  ======================================================
*/
:root {
  --color-primary: #1C2A54;   /* Deep Navy - Mirai */
  --color-accent1: #FF3EBF;   /* Neo Pink - Luna */
  --color-accent2: #C8B18A;   /* Beige/Soft Brown - Chimorin */
  --color-dark: #0a0f1d;
  --color-darker: #05080f;
  --color-light: #ffffff;
  --color-text: #e2e8f0;
  
  --glass-bg: rgba(28, 42, 84, 0.4);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

  --font-en: 'Outfit', sans-serif;
  --font-ja: 'M PLUS Rounded 1c', sans-serif;
  
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, .font-en {
  font-family: var(--font-en);
}

h1, h2, h3 { color: var(--color-light); }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

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

.section-padding {
  padding: 100px 0;
}

/* 
  ======================================================
  Typography & Globals
  ======================================================
*/
.section-title {
  font-size: 3rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 3rem;
  background: linear-gradient(135deg, #ffffff 0%, #a0aec0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ja-title {
  font-family: var(--font-ja);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  margin-top: 0.5rem;
  color: var(--color-accent1);
  -webkit-text-fill-color: var(--color-accent1);
  background: none;
}

.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: var(--transition);
  text-transform: uppercase;
  font-family: var(--font-en);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, #3a56a6 100%);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 15px rgba(28, 42, 84, 0.5);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--color-accent1) 0%, #a8207a 100%);
  z-index: -1;
  transition: opacity 0.4s ease;
  opacity: 0;
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255, 62, 191, 0.5);
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0; left: 0; width: 100vw; height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(circle at center, var(--color-dark) 0%, var(--color-darker) 100%);
}

/* 
  ======================================================
  Header / Navbar
  ======================================================
*/
.navbar {
  position: fixed;
  top: 0; left: 0; width: 100%;
  padding: 1.5rem 0;
  z-index: 1000;
  transition: all 0.4s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  padding: 1rem 0;
  background: rgba(5, 8, 15, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 40px;
  filter: drop-shadow(0 0 10px rgba(255,255,255,0.2));
  transition: var(--transition);
}

.logo:hover img {
  transform: scale(1.05);
  filter: drop-shadow(0 0 15px rgba(255,255,255,0.5));
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: #a0aec0;
  position: relative;
  transition: var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px; left: 0; width: 0; height: 2px;
  background: var(--color-accent1);
  transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
  width: 100%;
}

.mobile-menu-btn { display: none; }

/* 
  ======================================================
  Hero Section
  ======================================================
*/
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}

.hero-content {
  flex: 1;
  padding-left: 5%;
  z-index: 10;
}

.hero-title {
  font-family: var(--font-ja);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #fff 0%, #e2e8f0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 4px 10px rgba(0,0,0,0.5));
}

.hero-subtitle {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--color-accent1);
  margin-bottom: 2.5rem;
  letter-spacing: 0.05em;
  text-shadow: 0 2px 10px rgba(255, 62, 191, 0.3);
}

.hero-images {
  flex: 1;
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-main-img {
  max-width: 120%;
  max-height: 85vh;
  object-fit: contain;
  margin-right: -10%;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.6));
}

.float-anim {
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
  100% { transform: translateY(0px); }
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  opacity: 0.7;
}

.scroll-indicator p {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
}

.scroll-indicator .line {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.3);
  position: relative;
  overflow: hidden;
}

.scroll-indicator .line::after {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 50%;
  background: var(--color-accent1);
  animation: drop 2s ease-out infinite;
}

@keyframes drop {
  0% { top: -50%; }
  100% { top: 100%; }
}

/* 
  ======================================================
  Glassmorphism Utilities
  ======================================================
*/
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  box-shadow: var(--glass-shadow);
  padding: 2rem;
  transition: var(--transition);
}

.glass-panel:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5);
}

/* 
  ======================================================
  Concept Section
  ======================================================
*/
.concept {
  position: relative;
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.concept-card {
  background: rgba(28, 42, 84, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 2.5rem;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.concept-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.concept-card:hover {
  transform: translateY(-10px);
  background: rgba(28, 42, 84, 0.4);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.concept-card:hover::before {
  opacity: 1;
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  display: inline-block;
  padding: 1rem;
  border-radius: 50%;
  background: rgba(0,0,0,0.2);
}

.glow-blue { text-shadow: 0 0 20px rgba(58, 134, 255, 0.8); }
.glow-pink { text-shadow: 0 0 20px rgba(255, 62, 191, 0.8); }
.glow-gold { text-shadow: 0 0 20px rgba(200, 177, 138, 0.8); }

.concept-card h3 {
  font-family: var(--font-ja);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: var(--color-light);
}

.concept-card p {
  color: #a0aec0;
  font-size: 0.95rem;
}

/* 
  ======================================================
  Characters Section
  ======================================================
*/
.char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 3rem;
  margin-top: 4rem;
}

.char-card {
  background: rgba(10, 15, 29, 0.6);
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.05);
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transition: var(--transition);
}

.char-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.6);
}

.char-img-wrap {
  height: 350px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(255,255,255,0.05) 0%, transparent 70%);
}

.char-img-wrap img {
  height: 90%;
  object-fit: contain;
  transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.char-card:hover .char-img-wrap img {
  transform: scale(1.05) translateY(-10px);
}

.badge-mirai { background: linear-gradient(180deg, transparent 0%, rgba(28, 42, 84, 0.8) 100%); }
.badge-chimorin { background: linear-gradient(180deg, transparent 0%, rgba(200, 177, 138, 0.5) 100%); }
.badge-luna { background: linear-gradient(180deg, transparent 0%, rgba(255, 62, 191, 0.4) 100%); }

.char-info {
  padding: 2rem;
  position: relative;
  background: rgba(5, 8, 15, 0.9);
  border-top: 1px solid rgba(255,255,255,0.05);
}

.char-role {
  font-size: 0.8rem;
  color: #a0aec0;
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.char-name {
  font-family: var(--font-ja);
  font-size: 1.6rem;
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
}

.char-name span {
  font-family: var(--font-en);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.4);
  font-weight: 400;
}

.char-desc {
  font-size: 0.9rem;
  color: #a0aec0;
  margin-bottom: 1.5rem;
}

.char-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.char-tags li {
  font-size: 0.75rem;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.tag-blue { background: rgba(28, 42, 84, 0.6); color: #8ab4f8; border: 1px solid rgba(138, 180, 248, 0.3); }
.tag-gold { background: rgba(200, 177, 138, 0.2); color: #e8dbb9; border: 1px solid rgba(200, 177, 138, 0.3); }
.tag-pink { background: rgba(255, 62, 191, 0.2); color: #ff91da; border: 1px solid rgba(255, 62, 191, 0.3); }

/* 
  ======================================================
  Activities Section
  ======================================================
*/
.activity-timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.activity-item {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.act-icon {
  font-size: 2.5rem;
  min-width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  box-shadow: var(--glass-shadow);
}

.act-content {
  flex: 1;
}

.act-content h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: var(--color-accent1);
}

/* 
  ======================================================
  Footer
  ======================================================
*/
.footer {
  background: #03050a;
  padding: 4rem 0 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo {
  height: 50px;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: #a0aec0;
  font-size: 0.95rem;
}

.footer-links h4, .footer-tags h4 {
  font-family: var(--font-en);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--color-light);
  letter-spacing: 0.1em;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.social-link {
  color: #a0aec0;
  transition: var(--transition);
}

.social-link:hover {
  color: var(--color-accent1);
  padding-left: 5px;
}

.footer-tags p {
  color: #a0aec0;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.4);
  font-size: 0.8rem;
  font-family: var(--font-en);
}

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

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

/* 
  ======================================================
  Responsive
  ======================================================
*/
@media (max-width: 992px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 120px;
  }
  .hero-content {
    padding-left: 0;
    margin-bottom: 2rem;
  }
  .hero-images {
    width: 100%;
  }
  .hero-main-img {
    max-height: 60vh;
    margin-right: 0;
  }
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* Add mobile menu later if needed */
  }
  .mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
  }
  .mobile-menu-btn span {
    width: 30px;
    height: 2px;
    background: white;
    transition: var(--transition);
  }
  .activity-item {
    flex-direction: column;
    text-align: center;
  }
}