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

/* =========================
   BODY
========================= */
html, body {
  width: 100%;
  overflow-x: hidden;
}

body {
  font-family: 'Poppins', sans-serif;
  color: white;
  background:
    radial-gradient(circle at top, rgba(255,0,200,0.12), transparent 35%),
    radial-gradient(circle at bottom right, rgba(0,247,255,0.08), transparent 30%),
    #000;
}

/* =========================
   PARTICLES
========================= */
#particles {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* =========================
   HEADER
========================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;

  padding: 18px 5%;

  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(14px);

  border-bottom: 1px solid rgba(255,255,255,0.08);
}

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

/* =========================
   LOGO
========================= */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;

  font-family: 'Orbitron', sans-serif;
  font-size: clamp(14px, 1.2vw, 22px);
  font-weight: 700;

  color: white;

  text-transform: uppercase;
  letter-spacing: 2px;
}

.logo img {
  height: 48px;
  width: auto;

  filter: drop-shadow(0 0 8px rgba(255,0,200,0.5));
}

/* =========================
   MENU
========================= */
.menu {
  display: flex;
  align-items: center;
  gap: 22px;

  list-style: none;
}

.menu a {
  color: white;
  text-decoration: none;
  font-weight: 500;

  transition: 0.3s ease;
}

.menu a:hover {
  color: #ff00c8;
}

/* =========================
   BUTTONS
========================= */
.btn {
  display: inline-block;

  border: none;
  cursor: pointer;

  text-decoration: none;
  color: white;
}

.big-btn {
  padding: 12px 24px;
  border-radius: 30px;

  background: linear-gradient(45deg, #ff00c8, #00f7ff);

  font-weight: 700;

  box-shadow:
    0 0 14px rgba(255,0,200,0.35),
    0 0 28px rgba(0,247,255,0.2);

  transition: all 0.3s ease;
}

.big-btn:hover {
  transform: scale(1.08);
}

/* =========================
   MENU TOGGLE
========================= */
.menu-toggle {
  display: none;

  font-size: 30px;
  cursor: pointer;
}

/* =========================
   HERO
========================= */
.kpop-hero {
  position: relative;

  min-height: 100vh;
  height: 100svh;

  overflow: hidden;

  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;

  text-align: center;

  padding: 120px 20px 50px;
}

/* =========================
   HERO VIDEOS
========================= */
.bg-video {
  position: absolute;
  inset: 0;

  width: 100%;
  height: 100%;

  object-fit: cover;

  z-index: 0;

  filter: brightness(0.38) contrast(1.1) saturate(1.15);
}

.desktop-video {
  display: block;
}

.mobile-video {
  display: none;
}

/* =========================
   OVERLAY
========================= */
.hero-overlay {
  position: absolute;
  inset: 0;

  z-index: 1;

  background:
    linear-gradient(to bottom,
      rgba(0,0,0,0.72) 0%,
      rgba(0,0,0,0.25) 45%,
      rgba(0,0,0,0.82) 100%);
}

/* =========================
   HERO CONTENT
========================= */
.hero-top,
.hero-bottom {
  position: relative;
  z-index: 3;
}

.hero-top {
  width: 100%;
  max-width: 1400px;
}

/* TITLE */
.title {
  font-family: 'Orbitron', sans-serif;

  font-size: clamp(54px, 9vw, 150px);
  line-height: 0.95;

  text-transform: uppercase;
  letter-spacing: clamp(3px, 1vw, 10px);

  background: linear-gradient(90deg, #ff00c8, #00f7ff);
  -webkit-background-clip: text;
  color: transparent;

  text-shadow:
    0 0 25px rgba(255,0,200,0.35),
    0 0 55px rgba(0,247,255,0.25);

  animation: heroPulse 2.5s infinite alternate;
}

/* SUBTITLE */
.subtitle {
  margin-top: 15px;

  font-size: clamp(16px, 2vw, 30px);

  letter-spacing: clamp(2px, 0.5vw, 8px);
  text-transform: uppercase;

  opacity: 0.95;
}

/* HERO CTA */
.mega-btn {
  margin-top: 20px;

  padding: 22px 65px;

  border-radius: 60px;

  background: linear-gradient(45deg, #ff00c8, #00f7ff);

  font-size: clamp(18px, 2vw, 28px);
  font-weight: 800;

  text-transform: uppercase;

  box-shadow:
    0 0 22px rgba(255,0,200,0.45),
    0 0 45px rgba(0,247,255,0.35);

  transition: all 0.35s ease;
}

.mega-btn:hover {
  transform: scale(1.08);

  box-shadow:
    0 0 32px rgba(255,0,200,0.8),
    0 0 65px rgba(0,247,255,0.65);
}

/* =========================
   INFO SECTION
========================= */
.kpop-info {
  position: relative;
  z-index: 2;

  padding: 100px 20px;
  text-align: center;
}

.info-box {
  max-width: 900px;
  margin: 0 auto 70px;

  padding: 40px;

  border-radius: 25px;

  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(14px);

  border: 1px solid rgba(255,255,255,0.08);
}

.info-box h2 {
  font-family: 'Orbitron', sans-serif;

  font-size: clamp(28px, 4vw, 58px);

  margin-bottom: 20px;

  background: linear-gradient(90deg, #ff00c8, #00f7ff);
  -webkit-background-clip: text;
  color: transparent;
}

.info-box p {
  font-size: clamp(15px, 1.3vw, 20px);
  line-height: 1.8;

  opacity: 0.88;
}

/* =========================
   FEATURES
========================= */
.kpop-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;

  max-width: 1300px;
  margin: auto;
}

.feature-card {
  padding: 35px 25px;

  border-radius: 22px;

  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(12px);

  border: 1px solid rgba(255,255,255,0.08);

  transition: all 0.35s ease;
}

.feature-card:hover {
  transform: translateY(-12px);

  box-shadow:
    0 0 22px rgba(255,0,200,0.22),
    0 0 35px rgba(0,247,255,0.18);
}

.feature-card h3 {
  font-family: 'Orbitron', sans-serif;

  margin-bottom: 15px;

  font-size: 24px;
}

.feature-card p {
  opacity: 0.82;
  line-height: 1.7;
}

/* =========================
   NEON LINE
========================= */
.neon-line {
  width: min(90%, 1200px);
  height: 2px;

  margin: 20px auto 60px;

  background: linear-gradient(
    90deg,
    transparent,
    #ff00c8,
    #00f7ff,
    transparent
  );

  box-shadow:
    0 0 10px rgba(255,0,200,0.4),
    0 0 20px rgba(0,247,255,0.25);
}

/* =========================
   FOOTER
========================= */
.footer {
  position: relative;
  z-index: 2;

  text-align: center;

  padding: 40px 20px;

  background: rgba(5,5,5,0.95);

  border-top: 1px solid rgba(255,255,255,0.06);
}

/* SOCIALS */
.socials {
  margin-bottom: 18px;
}

.socials a {
  display: inline-block;

  margin: 0 12px;

  color: white;
  font-size: 26px;

  transition: all 0.3s ease;
}

.socials a:hover {
  transform: scale(1.2);
}

.socials a:nth-child(1):hover { color: #e1306c; }
.socials a:nth-child(2):hover { color: #1877f2; }
.socials a:nth-child(3):hover { color: #ff0000; }

/* =========================
   ANIMATIONS
========================= */
@keyframes heroPulse {
  from {
    transform: scale(1);
  }

  to {
    transform: scale(1.03);
  }
}

/* =========================
   MOBILE
========================= */
@media (max-width: 992px) {
  .kpop-features {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {

  /* NAV */
  .menu {
    position: absolute;

    top: 78px;
    right: -100%;

    flex-direction: column;

    width: 230px;

    padding: 25px;

    background: rgba(0,0,0,0.96);

    border-left: 1px solid rgba(255,255,255,0.08);

    transition: 0.3s ease;
  }

  .menu.active {
    right: 0;
  }

  .menu-toggle {
    display: block;
  }

  /* LOGO */
  .logo {
    font-size: 12px;
    gap: 8px;
  }

  .logo img {
    height: 34px;
  }

  /* HERO VIDEO */
  .desktop-video {
    display: none;
  }

  .mobile-video {
    display: block;
  }

  /* HERO */
  .kpop-hero {
    padding: 95px 16px 30px;
  }

  .title {
    font-size: clamp(42px, 14vw, 76px);
    line-height: 1;
    letter-spacing: 2px;
  }

  .subtitle {
    font-size: 13px;
    letter-spacing: 2px;
  }

  .mega-btn {
    width: min(88%, 420px);

    padding: 18px 20px;

    font-size: 18px;
  }

  /* INFO */
  .info-box {
    padding: 25px 18px;
  }

}