/* ============================================
   Sound Technologies - Base / Reset / Globals
   ============================================ */

:root {
  --st-navy: #000080;
  --st-navy-dark: #0a0a5c;
  --st-blue: #215F9A;
  --st-blue-hover: #1a4d7e;
  --st-green: #4CAF82;
  --st-green-hover: #3d9a6e;
  --st-dark: #333;
  --st-mid: #555;
  --st-light-bg: #f5f5f5;
  --st-white: #fff;
  --st-font: 'DM Sans', Helvetica, Arial, sans-serif;
  --st-max-width: 1200px;
}

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

body {
  font-family: var(--st-font);
  color: var(--st-dark);
  line-height: 1.6;
  background: var(--st-white);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
}

/* --- Shared Button Styles --- */
.st-btn {
  display: inline-block;
  padding: 14px 32px;
  text-decoration: none;
  font-family: var(--st-font);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
}

.st-btn:hover {
  transform: translateY(-1px);
}

.st-btn-green {
  background: var(--st-green);
  color: var(--st-white);
}

.st-btn-green:hover {
  background: var(--st-green-hover);
}

.st-btn-navy {
  background: var(--st-navy);
  color: var(--st-white);
}

.st-btn-navy:hover {
  background: var(--st-navy-dark);
}

.st-btn-blue {
  background: var(--st-blue);
  color: var(--st-white);
}

.st-btn-blue:hover {
  background: var(--st-blue-hover);
}

.st-btn-sm {
  font-size: 14px;
  padding: 10px 24px;
}

/* --- Heading Underlines (h2 and below) --- */
h2::after,
h3::after,
h4::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: var(--st-green);
  margin-top: 10px;
  border-radius: 2px;
}

/* --- Shared Hero Visual (GIF + vehicle overlay) --- */
.st-hero-gif {
  width: 100%;
  border-radius: 6px;
  display: block;
}

.st-hero-vehicle {
  position: absolute;
  bottom: -10px;
  right: 10px;
  width: 45%;
  max-width: 220px;
  height: auto;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

@media (min-width: 600px) {
  .st-hero-vehicle {
    max-width: 260px;
    bottom: -15px;
    right: 20px;
  }
}

@media (min-width: 960px) {
  .st-hero-vehicle {
    max-width: 300px;
    bottom: -20px;
    right: 20px;
  }
}