/* style.css */

/* Cấu hình nền và màu chữ */
body {
  background: #0f172a;
  color: #eef2ff;
  background-color: #000; /* nền tối để màu nổi bật */
  font-family: Arial, sans-serif;
  margin: 20px; /* thêm khoảng cách nhỏ cho đẹp */
}

/* Hero section */
.hero {
  background: linear-gradient(90deg, rgba(99,102,241,0.12), rgba(14,165,233,0.06));
  border-radius: .75rem;
}

/* Card */
.card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.04);
}

/* Các class hỗ trợ */
.muted-light {
  color: rgba(255,255,255,0.6);
}
.small-note {
  font-size: .85rem;
  color: rgba(255,255,255,0.65);
}

/* Nút tải */
.btn-download {
  background: linear-gradient(90deg,#7c3aed,#06b6d4);
  color: white;
}

/* Chữ nhấp nháy nhiều màu */
.blinking-multicolor {
  font-size: 20px;
  font-weight: bold;
  animation: colorBlink 2s infinite ease-in-out;
  text-shadow: 0 0 6px rgba(255,255,255,0.6);
}

@keyframes colorBlink {
  0% { color: red; }
  20% { color: orange; }
  40% { color: yellow; }
  60% { color: green; }
  80% { color: blue; }
  100% { color: violet; }
}

.new-notice {
  background-color: rgba(255, 255, 0, 0.05);
  border-left: 3px solid gold;
}
.card {
  background-color: #111; /* nền đồng bộ với index */
  color: #fff;
}
.list-group-item {
  background-color: transparent;
  border-color: rgba(255,255,255,0.1);
}
/*Style bảng thông báo*/
.new-notice {
  border-left: 4px solid #0d6efd;
  background: rgba(13, 110, 253, 0.05);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 rgba(13,110,253, 0.4); }
  50% { box-shadow: 0 0 10px rgba(13,110,253, 0.6); }
  100% { box-shadow: 0 0 0 rgba(13,110,253, 0.4); }
}

/* 🌙 Nền tối & thông báo mới nổi bật hơn */
.list-group-item.bg-dark {
  background-color: #1c1f24 !important;
  color: #fff !important;
}
.list-group.bg-dark {
  background-color: #1c1f24 !important;
}
.new-notice {
  border-left: 4px solid #0d6efd;
  background: rgba(13, 110, 253, 0.15) !important;
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 rgba(13,110,253, 0.3); }
  50% { box-shadow: 0 0 10px rgba(13,110,253, 0.7); }
  100% { box-shadow: 0 0 0 rgba(13,110,253, 0.3); }
}

/* Popup style */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1055;
}
.overlay.show { display: flex; }

.modal-video {
  width: min(90%, 800px);
  background: #000;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 0 20px rgba(255,255,255,0.2);
}
.video-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .5rem .75rem;
  background: #111;
  color: #fff;
}
.video-frame {
  position: relative;
  padding-top: 56.25%;
}
.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}
.close {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}