body {
  margin: 0;
  background: #cdcdcd url('images/bg-page-guitar.jpg') no-repeat fixed bottom;
  background-size: cover;
  color: #1d2939;
  font-family: Arial, sans-serif;
}

a {
  color: #b22222;
  text-decoration: none;
}

a:hover {
  color: #8b1a1a;
  text-decoration: underline;
}

a:visited {
  color: #7a1f1f;
}

.page-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 25px;
  background: linear-gradient(180deg, #fff5b8 0%, #ffffff 100%);
  padding: 28px 24px;
  border-radius: 20px;
  border: 1px solid #1a1a1a;
  overflow: visible;
}

.hero .logo img {
  max-width: 300px;
}

.hero .separator {
  width: 100%;
  height: 2px;
  background: #b22222;
  border-radius: 2px;
  margin: 0;
}

.hero-sign {
  position: absolute;
  top: 20px;
  right: 20px;
  width: min(250px, 35vw);
  max-width: 250px;
  z-index: 30;
  pointer-events: none;
  transform: rotate(5deg) translateX(-20px);
}

.hero-sign img {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(2px 2px 5px rgba(0, 0, 0, 0.55));
  -webkit-filter: drop-shadow(2px 2px 5px rgba(0, 0, 0, 0.55));
  -moz-filter: drop-shadow(2px 2px 5px rgba(0, 0, 0, 0.55));
}

.content-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

.main-copy {
  position: relative;
  z-index: 1;
  background: #fff;
  padding: 32px;
  border-radius: 20px;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.08);
  border: 1px solid #1a1a1a;
}

.main-copy .section-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.main-copy hr {
  margin: 18px 0;
  border: 0;
  border-top: 1px solid #acb2b9;
}

.main-copy p {
  margin: 0 0 18px;
  line-height: 1.75;
  color: #334155;
}

.author-note {
  margin: 0 0 18px;
  line-height: 1.3;
  color: #334155;
  font-size: 0.9rem;
}

.author-note .date {
  color: #6b7280;
  font-size: 0.85rem;
  margin-top: 2px;
}

.footer {
  text-align: center;
  padding: 8px 0 2px;
  color: #64748b;
  font-size: 0.85rem;
}

.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  margin: 0 0 18px;
  overflow: hidden;
  border-radius: 16px;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.btn {
  display: inline-block;
  padding: 12px 32px;
  background: #b22222;
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: #8b1a1a;
}

@media (max-width: 900px) {
  .content-grid {
    grid-template-columns: 1fr;
  }
}