* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

body {
  background: #fff;
  color: #111;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}


.header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 20px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  background: #fff;
}

.header .logo img {
  height: 70px;
  width: auto;
  display: block;
}

.header .menu-btn {
  font-size: 32px;
  cursor: pointer;
  background: none;
  border: none;
  color: #111;
  transition: 0.3s;
}

.header .menu-btn:hover {
  color:  #6d21d2;
}


.menu-overlay {
  position: fixed;
  inset: 0;
  background: #fff;
  transform: translateY(-100%);
  transition: transform 0.35s ease;
  z-index: 2000;
}

.menu-overlay.open {
  transform: translateY(0);
}

.menu-header {
  padding: 20px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.menu-header .menu-logo img {
  height: 70px;
}

.close-btn {
  font-size: 32px;
  cursor: pointer;
  transition: 0.3s;
}

.menu-links {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.menu-links a {
  font-size: 34px;
  font-weight: 900;
  color: #111;
  text-decoration: none;
  transition: 0.25s;
}

.menu-links a:hover {
  transform: translateX(8px);
  color:  #6d21d2;
}

.menu-socials {
  position: absolute;
  left: 48px;
  bottom: 80px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.menu-socials a {
  color: #111;
}

.menu-socials i {
  font-size: 22px;
  transition: transform 0.25s ease, color 0.25s ease;
}

.menu-socials a:hover i {
  transform: translateX(6px);
  color: #6d21d2;
}


.menu-overlay .copyright {
  position: absolute;
  right: 48px;
  bottom: 32px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 1px;
}


.page-label {
  position: fixed;
  right: 48px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  z-index: 1500;
  pointer-events: none;
}

.page-label .num { font-weight: 900; font-size: 14px; letter-spacing: 2px; }
.page-label .line { width: 1.5px; height: 100px; background: #111; }
.page-label .text { 
  writing-mode: vertical-rl; 
  transform: rotate(180deg); 
  font-size: 11px; 
  font-weight: 900; 
  letter-spacing: 5px; 
  text-transform: uppercase; 
}

.socials-main {
  position: fixed;
  left: 48px;
  bottom: 120px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  z-index: 1500;
}

.socials-main a { font-size: 22px; color: #111; text-decoration: none; transition: 0.3s; }
.socials-main a:hover { transform: translateX(6px); color:  #6d21d2; }


.video-section {
  margin-top: 140px;
  text-align: center;
}

.video-section h1 {
  font-size: 28px;
  font-weight: 900;
  margin-bottom: 24px;
  letter-spacing: 2px;
}

.video-wrapper {
  width: 90%;
  max-width: 960px;
  margin: 0 auto;
  border: 2px solid #111;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}

.video-wrapper iframe {
  width: 100%;
  height: 540px;
  display: block;
  border: none;
}


.video-list {
  margin: 60px auto;
  width: 90%;
  max-width: 960px;
}

.slider-window { overflow: hidden; }

.video-track {
  display: flex;
  gap: 32px;
  transition: transform 0.4s ease;
}

.video-item {
  min-width: 240px;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 12px;
  overflow: hidden;
  transition: 0.3s;
}

.video-item:hover, .video-item.active {
  transform: scale(1.05);
  border-color: #111;
}

.video-item img { width: 100%; display: block; }

.video-info {
  padding: 12px;
  text-align: center;
  background: #f7f7f7;
}

.video-info span { display: block; }
.video-info span:first-child { font-weight: 900; margin-bottom: 4px; }
.video-info span:last-child { font-size: 12px; color: #777; }


.slider-nav-bottom {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin: 30px 0;
}

.slider-nav-bottom button {
  padding: 8px 16px;
  font-size: 20px;
  cursor: pointer;
  background: none;
  border: 2px solid #111;
  border-radius: 6px;
  transition: 0.3s;
}

.slider-nav-bottom button:hover {
  background: #111;
  color: #fff;
}

.homepage-copyright {
  text-align: right;
  padding: 40px 48px;
  font-size: 12px;
  font-weight: 900;
}

@media (max-width: 1024px) {
  .page-label, .socials-main { display: none; }
  .video-wrapper iframe { height: 360px; }
  .header { padding: 20px 24px; }
}

@media (max-width: 600px) {
  .video-wrapper iframe { height: 220px; }
  .video-item { min-width: 180px; }
}