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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #fff;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Video nền + Overlay */
.video-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}
.background-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}
.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.65);
  z-index: 1;
}

/* Logo trên cùng */
.top-logo {
  width: 100%;
  text-align: center;
  padding: 0;
  margin: 0;
  background: transparent;
  z-index: 10;
  position: relative;
}
.top-logo img {
  width: 250px;
  height: auto;
  object-fit: contain;
  display: block;
  margin: 20px auto 0 auto;
}

.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 20px 10px 40px;
  position: relative;
  z-index: 2;
}

.section-title {
  text-align: center;
  font-size: 2.8rem;
  margin-bottom: 10px;
  color: #ffd700;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}
.section-subtitle {
  text-align: center;
  font-size: 1.3rem;
  color: #eee;
  margin-bottom: 60px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

.services {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 15px;
}

.service-card {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 40px 20px 45px;
  text-align: center;
  transition: all 0.4s ease;
  backdrop-filter: blur(8px);
}
.service-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 215, 0, 0.12);
}

/* Vòng tròn */
.circle-wrapper {
  width: 215px;
  height: 215px;
  margin: 0 auto 30px;
  position: relative;
}
.circle-wrapper svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.circle-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.12);
  stroke-width: 14;
}
.circle-progress {
  fill: none;
  stroke: #ffd700;
  stroke-width: 14;
  stroke-linecap: round;
  stroke-dasharray: 440;
  stroke-dashoffset: 0;
  animation: spinCircle 1.8s linear infinite;
}
@keyframes spinCircle {
  from {
    stroke-dashoffset: 440;
  }
  to {
    stroke-dashoffset: 0;
  }
}

.logo-center {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 175px;
  height: 175px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid #ffd700;
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.6);
  animation: flagSpin 10s linear infinite;
  transform-origin: center center;
  object-fit: contain !important; /* Giữ ảnh nguyên tỉ lệ không tràn */
    padding: 14px;                  /* Tăng số này lên (ví dụ 16px, 18px) nếu muốn ảnh nhỏ hơn nữa */
    box-sizing: border-box;         /* Giữ nguyên tổng kích thước 98px không bị phình to */
}
 

@keyframes flagSpin {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%);
  }
}

/* Nút */
.btn-experience {
  display: inline-block;
  margin-top: 20px;
  padding: 14px 32px;
  background: linear-gradient(90deg, #ffd700, #ffaa00);
  color: #1a0033;
  font-weight: bold;
  font-size: 1.05rem;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.5);
}
.btn-experience:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(255, 215, 0, 0.7);
}

.service-card h3 {
  font-size: 1.45rem;
  margin-bottom: 20px;
  color: #ffd700;
  min-height: 44px;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}

/* Responsive */
@media (max-width: 768px) {
  .top-logo img {
    width: 340px;
  }
}
@media (max-width: 480px) {
  .top-logo img {
    width: 377px;
  }
}
@media (max-width: 1200px) {
  .services {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .services {
    grid-template-columns: 1fr;
  }
}