/* ========================================= */
/* GLOBAL */
/* ========================================= */

.quiet-railway-page {
  width: 100%;
  overflow: hidden;

  background: #F0F3F5;
}

.quiet-container {
  width: 100%;
  max-width: 1180px;

  margin: 0 auto;
  padding: 0 20px;

  box-sizing: border-box;
}

.quiet-small-container {
  width: 100%;
  max-width: 760px;

  margin: 0 auto;
  padding: 0 20px;

  box-sizing: border-box;
}

/* ========================================= */
/* HERO */
/* ========================================= */

.quiet-hero {
  position: relative;

  width: 100%;
  height: 520px;

  overflow: hidden;

  display: flex;
  align-items: center;
  justify-content: center;

  background: #000;
}

.quiet-hero-image {
  position: absolute;
  inset: 0;

  width: 100%;
  height: 100%;

  display: block;

  object-fit: cover;
  object-position: top center;

  z-index: 1;
}

.quiet-hero-overlay {
  position: absolute;
  inset: 0;

  background: rgba(0,0,0,0.45);

  z-index: 2;
}

.quiet-hero-content {
  position: relative;
  z-index: 3;

  text-align: center;
  padding: 20px;
}

.quiet-hero-content h1 {
  margin: 0;

  color: #fff;

  font-size: 58px;
  font-weight: 800;
  line-height: 1.15;

  text-shadow: 0 3px 12px rgba(0,0,0,0.35);
}

.quiet-hero-line {
  display: block;

  width: 44px;
  height: 4px;

  margin: 18px auto 0;

  background: #d40000;

  border-radius: 50px;
}

/* ========================================= */
/* COMMON SECTION SPACING */
/* ========================================= */

.quiet-top-section,
.noise-report-section,
.quiet-video-text-section,
.quiet-limit-section,
.vibration-section {
  padding: 70px 0;
}

/* ========================================= */
/* TITLES */
/* ========================================= */

.quiet-top-section h2,
.noise-report-section h2,
.quiet-video-text-section h2,
.quiet-limit-section h2,
.vibration-section h2 {
  margin: 0 0 42px;

  text-align: center;

  color: #1d2740;

  font-size: 34px;
  font-weight: 800;
  line-height: 1.2;
}

/* ========================================= */
/* TOP SECTION */
/* ========================================= */

.quiet-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;

  gap: 40px;
}

.quiet-text {
  flex: 1;
  max-width: 560px;
}

.quiet-text p {
  margin: 0 0 24px;

  color: #222;

  font-size: 16px;
  line-height: 1.9;
}

.quiet-image-wrapper {
  flex: 1;
  max-width: 430px;

  display: flex;
  justify-content: center;
}

.quiet-image {
  width: 100%;
  height: auto;

  display: block;

  border-radius: 6px;

  transition: transform 0.4s ease;
}

.quiet-image:hover {
  transform: scale(1.02);
}

/* ========================================= */
/* REPORT */
/* ========================================= */

.report-image-wrapper {
  max-width: 920px;

  margin: 0 auto 28px;
}

.report-image {
  width: 100%;
  height: auto;

  display: block;

  transition: transform 0.4s ease;
}

.report-image:hover {
  transform: scale(1.01);
}

.report-download {
  text-align: center;
}

.report-download a {
  color: #1d2740;

  font-size: 15px;

  text-decoration: underline;

  transition: opacity 0.25s ease;
}

.report-download a:hover {
  opacity: 0.75;
}

/* ========================================= */
/* VIDEO SECTION */
/* ========================================= */

.quiet-video-text-section p {
  margin: 0 0 22px;

  color: #222;

  font-size: 15px;
  line-height: 1.9;
}

.quiet-video-wrapper {
  position: relative;

  width: 100%;
  padding-bottom: 56.25%;

  margin: 34px 0;

  overflow: hidden;

  border-radius: 8px;

  box-shadow: 0 10px 28px rgba(0,0,0,0.08);
}

.quiet-video-wrapper iframe {
  position: absolute;
  inset: 0;

  width: 100%;
  height: 100%;
}

/* ========================================= */
/* BULLETS */
/* ========================================= */

.quiet-list {
  margin: 12px 0 0 18px;
  padding: 0;
}

.quiet-list li {
  margin-bottom: 12px;

  /* NORMAL TEXT COLOR */
  color: #222;

  font-size: 15px;
  line-height: 1.8;
}

/* ONLY BULLETS RED */
.quiet-list li::marker {
  color: #b00000;
}

/* ========================================= */
/* LIMIT SECTION */
/* ========================================= */

.quiet-limit-grid {
  display: flex;
  align-items: flex-start;
  justify-content: center;

  gap: 45px;
}

.quiet-limit-image-wrapper {
  flex: 1;
  max-width: 430px;

  display: flex;
  justify-content: center;
}

.quiet-limit-image {
  width: 100%;
  height: auto;

  display: block;

  transition: transform 0.4s ease;
}

.quiet-limit-image:hover {
  transform: scale(1.02);
}

.quiet-limit-text {
  flex: 1;
  max-width: 600px;
}

.quiet-limit-text p {
  margin: 0 0 24px;

  color: #222;

  font-size: 16px;
  line-height: 1.9;
}

/* ========================================= */
/* VIBRATION */
/* ========================================= */

.vibration-section p {
  margin: 0 0 24px;

  color: #222;

  font-size: 16px;
  line-height: 1.9;
}

/* ========================================= */
/* ANIMATION */
/* ========================================= */

.fade-up {
  animation: fadeUp 1s ease both;
}

@keyframes fadeUp {

  from {
    opacity: 0;
    transform: translateY(35px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }

}

/* ========================================= */
/* RESPONSIVE */
/* ========================================= */

@media (max-width: 1100px) {

  .quiet-grid,
  .quiet-limit-grid {
    gap: 30px;
  }

}

@media (max-width: 992px) {

  .quiet-hero {
    height: 420px;
  }

  .quiet-hero-content h1 {
    font-size: 42px;
  }

  .quiet-grid,
  .quiet-limit-grid {
    flex-direction: column;

    align-items: center;

    gap: 28px;
  }

  .quiet-text,
  .quiet-limit-text,
  .quiet-image-wrapper,
  .quiet-limit-image-wrapper {
    max-width: 100%;
  }

  /* FIX IMAGE ALIGNMENT */
  .quiet-image-wrapper,
  .quiet-limit-image-wrapper {
    justify-content: center;
    text-align: center;
  }

  .quiet-image,
  .quiet-limit-image {
    margin: 0 auto;
  }

  .quiet-top-section,
  .noise-report-section,
  .quiet-video-text-section,
  .quiet-limit-section,
  .vibration-section {
    padding: 60px 0;
  }

}

@media (max-width: 768px) {

  .quiet-hero {
    height: 340px;
  }

  .quiet-hero-content h1 {
    font-size: 30px;
    line-height: 1.3;
  }

  .quiet-top-section h2,
  .noise-report-section h2,
  .quiet-video-text-section h2,
  .quiet-limit-section h2,
  .vibration-section h2 {
    font-size: 26px;

    margin-bottom: 34px;

    line-height: 1.3;
  }

  .quiet-text p,
  .quiet-video-text-section p,
  .quiet-limit-text p,
  .vibration-section p,
  .quiet-list li {
    font-size: 14px;
    line-height: 1.8;
  }

  .quiet-grid,
  .quiet-limit-grid {
    gap: 22px;
  }

  .quiet-video-wrapper {
    margin: 28px 0;
  }

  .quiet-top-section,
  .noise-report-section,
  .quiet-video-text-section,
  .quiet-limit-section,
  .vibration-section {
    padding: 50px 0;
  }

}

@media (max-width: 480px) {

  .quiet-hero {
    height: 290px;
  }

  .quiet-hero-content h1 {
    font-size: 24px;
  }

  .quiet-top-section h2,
  .noise-report-section h2,
  .quiet-video-text-section h2,
  .quiet-limit-section h2,
  .vibration-section h2 {
    font-size: 22px;

    margin-bottom: 28px;
  }

  .quiet-text p,
  .quiet-video-text-section p,
  .quiet-limit-text p,
  .vibration-section p,
  .quiet-list li {
    font-size: 13px;
    line-height: 1.75;
  }

  .quiet-top-section,
  .noise-report-section,
  .quiet-video-text-section,
  .quiet-limit-section,
  .vibration-section {
    padding: 42px 0;
  }

}