/* Global layout */
body {
  margin: 0;
  min-height: 100vh;
  background: url('SleepSyncBackground.png') center / cover no-repeat fixed;
  color: #fff;
}

h1,
h2,
h3 {
  color: #c5d3ff;
  text-align: center;
}

p {
  text-indent: 1.5rem;
}

.welcome-tagline {
  color: #d9abfe;
  font-size: 1.5rem;
}

#welcome h2 {
  font-size: 1.8rem;
}

/* Top Bar Styling */
header {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 2rem;
  /* background-color: ; */
  padding-bottom: 2rem;
  width: 100%;
  max-width: 1250px;
  margin: 0 auto;
  box-sizing: border-box;
}

header h1 {
  color: #c5d3ff;
  -webkit-text-stroke: 1px #fff;
  text-shadow: 0 0 2px #fff;
}

main,
footer {
  width: 100%;
  max-width: 1250px;
  margin: 0 auto;
  padding: 0 1.5rem 2rem;
  box-sizing: border-box;
}

.site-footer,
footer {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.6rem;
  padding: 1.25rem 1.5rem;
  margin-top: 1.5rem;
  margin-bottom: 2rem;
  background: rgba(152, 86, 168, 0.15);
  border: 2px solid #fff;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  backdrop-filter: blur(4px);
  text-align: center;
  box-sizing: border-box;
}

footer a,
footer span,
footer p {
  color: #c5d3ff;
  font-weight: 600;
  text-decoration: none;
  margin: 0;
  text-indent: 0;
}

footer a:hover {
  color: #d9abfe;
  text-shadow: 0 0 2px #d9abfe;
}

footer a {
  display: inline-block;
  padding: 0 0.75rem;
}

footer span {
  display: block;
  color: #d9abfe;
  font-weight: 700;
}

.page-section {
  background: rgba(0, 0, 0, 0.35);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1rem 0;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  box-sizing: border-box;
}

.problem-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.problem-graphic {
  width: 100%;
  max-width: 420px;
  height: auto;
  border-radius: 10px;
  box-shadow: none;
}

.algorithm-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.algorithm-section img {
  width: 100%;
  max-width: 960px;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.algorithm-section p {
  text-indent: 0;
  text-align: center;
  margin: 0 0 0.75rem;
}

.deliverables-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.4rem;
}

.deliverables-section ul {
  margin: 0.25rem 0 0;
  padding-left: 0;
  list-style-position: inside;
  text-align: center;
}

.deliverables-section li {
  margin: 0.15rem 0;
}

.solution-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  text-align: center;
}

.solution-section p {
  text-indent: 1.5rem;
  margin: 0.15rem 0 0;
  text-align: left;
}

.solution-section h2 {
  margin: 0 0 0.35rem;
}

.solution-graphic {
  width: 100%;
  max-width: 960px;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.solution-section ul {
  margin: 0.25rem 0 0;
  padding-left: 1.5rem;
  text-align: left;
}

.solution-section li {
  margin: 0.1rem 0;
}

.MFC-section {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  align-items: center;
  text-align: center;
}

.MFC-section p {
  text-indent: 0;
  margin: 0;
}

.mfc-diagram {
  width: 100%;
  max-width: 960px;
  height: auto;
  display: block;
  margin: 0.5rem auto 0;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.risks-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.risks-section img {
  width: 100%;
  max-width: 960px;
  height: auto;
  display: block;
  border-radius: 10px;
  padding: 0.5rem;
  background: #c5d3ff;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.risks-section p {
  text-indent: 0;
  text-align: center;
  margin: 0 0 0.5rem;
}

.attribution {
  text-indent: 0;
  text-align: center;
  font-size: 0.95rem;
  color: #c5d3ff;
}

.attribution a {
  color: #d9abfe;
  text-decoration: none;
}

.attribution a:hover {
  text-decoration: underline;
  color: #fff;
}

.glossary-section h3 {
  color: #d9abfe;
  margin-top: 1.2rem;
}

.glossary-section h2 {
  margin-bottom: 1.5rem;
}

.glossary-section p {
  text-indent: 1.5rem;
  margin: 0.4rem 0 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.glossary-section p:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.references-section ul {
  list-style: disc;
  list-style-position: inside;
  padding: 0;
  margin: 0;
}

.references-section li {
  margin: 0.35rem 0;
  line-height: 1.4;
}

/* Remove default list styling */
nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: center;
}

nav {
  width: 100%;
  max-width: 1250px;
  display: flex;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  margin-top: 0.75rem;
  background: rgba(152, 86, 168, 0.15);
  border: 2px solid #fff;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  backdrop-filter: blur(4px);
  box-sizing: border-box;
}

/* Style the links */
nav a {
  text-decoration: none;
  color: #fff; /*link color*/
  font-weight: bold;
  font-size: 1.25rem;
  -webkit-text-stroke: 0;
  text-shadow: none;
}

nav a:hover {
  color: #d9abfe; /*hover color*/
  text-shadow: 0 0 2px #d9abfe;
}

/* Style Hover Menu */
.menu-label {
  padding: 10px;
  display: flex;
  color:#fff;
  font-weight: bold;
  font-size: 1.25rem;
  text-decoration: none;
  align-items: center;
  -webkit-text-stroke: 0;
  text-shadow: none;
}

.menu-label:hover {
  background: #9856a8
}

.submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;

  background: rgba(197, 211, 255, 0.9); /* header blue */
  padding: 10px 0;
  margin: 0;

  list-style: none;
  flex-direction: column;
  gap: 0;

  border: 1px solid #fff;
  z-index: 2000;
}

.submenu a {
  color: #fff;
  padding: 0.5rem 1rem;
  display: block;
  text-align: left;
}

.submenu a:hover {
  background: rgba(197, 211, 255, 1);
  color: #fff;
}

.dropdown {
  position: relative;
}

.dropdown:hover .submenu {
  display: flex;
}

/* Style the Slide */
.slide-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  padding: 2rem 1rem;
}

.presentation-main {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.presentation-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.embed-wrapper {
  position: relative;
  width: 100%;
  max-width: 960px;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  background: rgba(0, 0, 0, 0.2);
}

.embed-frame {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}


.team {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  padding: 1rem 0;
  text-align: center;
}

.member {
  max-width: 240px;
  padding: 1rem;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.35);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
  box-sizing: border-box;
}

/* Image Styling */
.member img {
  width: 150px;
  height: 150px;
  object-fit: cover; /*keeps aspect ratio and crops if needed*/
  border-radius: 50%; /*makes it circle*/
}

.member p {
  text-indent: 0;
  text-align: center;
}

.userStories-section h3 {
  color: #d9abfe;
  margin-top: 1.2rem;
  text-align: center;
}

.userStories-section h2 {
  margin-top: 3rem;
  margin-bottom: 1.5rem;
}

.userStories-section p {
  text-indent: 1.5rem;
  margin: 0.4rem 0 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
  text-align: center;
}

.userStories-section p:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.user-stories-content {
  text-align: center;
}