/* ======= FONT & NỀN TỔNG THỂ ======= */
body {
  font-family: 'Segoe UI', 'Roboto', sans-serif;
  background-color: #f0f0f0;
  color: #111;
  font-size: 16px;
  margin: 0;
  padding: 0;
}

/* ======= TIÊU ĐỀ ======= */
h1 { font-size: 2.2rem; color: #111; font-weight: 700; }
h2 { font-size: 1.8rem; color: #111; font-weight: 700; }
h3 { font-size: 1.5rem; color: #111; font-weight: 700; }
h4 { font-size: 1.3rem; color: #111; font-weight: 700; }

/* ======= NHÃN & CHỮ PHỤ ======= */
.form-label {
  color: #f1c40f;
  font-weight: 600;
  font-size: 1rem;
}

.text-danger {
  color: #e74c3c;
  font-size: 0.9rem;
}

.text-muted {
  color: #555;
  font-size: 0.9rem;
}

/* ======= INPUT & FORM ======= */
.form-control {
  font-size: 1.05rem;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #b30000;
  background-color: #fff;
  color: #000;
}

.form-control:focus {
  border-color: #b30000;
  box-shadow: 0 0 0 0.2rem rgba(179, 0, 0, 0.25);
}

.form-control::placeholder {
  color: #999;
  font-style: italic;
  font-size: 0.95rem;
}

/* ======= NÚT NHẤN & HIỆU ỨNG ======= */
.btn-primary {
  background: linear-gradient(135deg, #b30000, #000);
  border: none;
  font-size: 1.15rem;
  padding: 12px;
  border-radius: 10px;
  color: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: 0.3s ease;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #cc0000, #111);
  transform: scale(1.03);
}

.btn-outline-warning {
  border: 1px solid #f1c40f;
  color: #f1c40f;
}

.btn-outline-warning:hover {
  background-color: #f1c40f;
  color: #000;
}

.btn-danger {
  background-color: #b30000;
  border: none;
}

.btn-danger:hover {
  background-color: #cc0000;
}

/* ======= ICON APP & HÌNH ẢNH ======= */
.app-icon,
.app-icon-mobile {
  border-radius: 20px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

.app-icon {
  width: 280px;
}

.app-icon-mobile {
  width: 100px;
}

/* ======= MODULE DASHBOARD ======= */
.read-more img {
  width: 100%;
  border-radius: 12px;
  background-color: rgba(179, 0, 0, 0.05);
  box-shadow: rgba(179, 0, 0, 0.4) 0px 0.3em, rgba(179, 0, 0, 0.3) 0px 0.6em, rgba(179, 0, 0, 0.2) 0px 0.9em;
  transition: 0.3s ease;
}

.read-more img:hover {
  box-shadow: 0 0 15px rgba(241, 196, 15, 0.6);
}

.read-more span {
  display: block;
  margin-top: 0.5em;
  font-weight: bold;
  color: #111;
  font-size: 1.2rem;
}

/* ======= RESPONSIVE ======= */
@media (max-width: 768px) {
  h3 {
    font-size: 1.5rem;
  }

  .app-icon {
    width: 180px;
  }

  .app-icon-mobile {
    width: 80px;
  }

  .data-news1 {
    width: 80%;
    max-width: 300px;
  }

  .box-data {
    flex-direction: column;
    align-items: center;
  }
}

/* ======= ANIMATION ======= */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}