:root {
  --bg-white: #ffffff;
  --bg-light: #f5f5f5;
  --text-dark: #333333;
  --accent-gray: #e0e0e0;
  --active-color: #4a90e2; /* highlight color */
  --active-text: #ffffff;
}

body {
  margin: 0;
  overflow-y: hidden;
  height: 100vh;
  background: var(--bg-white);
  font-family: Arial, sans-serif;
  color: var(--text-dark);
}

.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  padding: 0 20px;
  z-index: 1000;
  border-bottom: 1px solid var(--accent-gray);
}

.logo {
  height: 40px;
  width: auto;
  margin-right: 15px;
  border-radius: 4px;
}

.nav-buttons {
  display: flex;
  gap: 10px;
}

.nav-buttons button {
  background: var(--accent-gray);
  border: none;
  padding: 8px 14px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-dark);
  transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

.nav-buttons button:hover {
  background: #d0d0d0;
}

.nav-buttons button.active {
  background: var(--active-color);
  color: var(--active-text);
  font-weight: bold;
  box-shadow: 0 0 8px rgba(74,144,226,0.6);
}

.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: var(--bg-light);
  color: var(--text-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  z-index: 1000;
  border-top: 1px solid var(--accent-gray);
}

.scroll-container {
  position: absolute;
  top: 60px;       /* below top bar */
  bottom: 60px;    /* above bottom bar */
  left: 0;
  right: 0;
  display: flex;
  flex-direction: row;
  overflow-x: scroll;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
}


.section {
  flex: 0 0 100vw;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  scroll-snap-align: start;
}

.section:nth-child(odd) .image-placeholder {
  background: var(--bg-white);
}
.section:nth-child(even) .image-placeholder {
  background: var(--bg-light);
}

.image-placeholder {
  width: 100%;
  height: 100%;
}

.text-placeholder {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dark);
  padding: 10px 20px;
  font-size: 24px;
  opacity: 0;
  transition: opacity 1s ease;
  background: transparent;
}

.text-placeholder.visible {
  opacity: 1;
}

.text-placeholder.fadeout {
  opacity: 0;
}

.placeholder-img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* cover; ensures the image fills the space nicely / contain; original size */
  display: block;
}

.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: var(--bg-light);
  color: var(--text-dark);
  display: flex;
  justify-content: space-between; /* items spread across */
  align-items: center;            /* center vertically */
  padding: 0 20px;
  z-index: 1000;
  border-top: 1px solid var(--accent-gray);
}

.contact-item {
  flex: 1;                        /* equal width for all 3 */
  display: flex;
  align-items: center;
  justify-content: center;        /* center content inside each division */
  text-align: center;
}

.icon {
  width: 20px;
  height: 20px;
  margin-right: 6px;
  vertical-align: middle;
}