:root {
  --frozen-lake: #99DAFF;
  --sky-blue: #70CBFF;
  --canary-yellow: #FDFD87;
  --pacific-blue: #5DA3AC;
  --icy-aqua: #ACECE7;
  --deep-blue: #245A78;
  --text-dark: #1f2d2f;
}

/* Slide background and text */
.reveal {
  color: var(--text-dark);
}

.reveal .slides {
  text-align: left;
}

.reveal .slide-background-content {
  background: linear-gradient(135deg, #ffffff 0%, #EAF8FF 55%, #F6FFFF 100%);
}

/* Headings */
.reveal h1,
.reveal h2,
.reveal h3 {
  color: var(--deep-blue);
  text-transform: none;
  letter-spacing: normal;
}

.reveal h2 {
  border-bottom: 5px solid var(--sky-blue);
  padding-bottom: 0.25em;
}

/* Links */
.reveal a {
  color: var(--deep-blue);
}

.reveal a:hover {
  color: var(--pacific-blue);
}

/* Lists */
.reveal ul {
  margin-top: 0.5em;
}

.reveal li {
  margin-bottom: 0.25em;
}

/* Image styling */
.profile-slide-img {
  border-radius: 16px;
  max-height: 420px;
  box-shadow: 0 8px 24px rgba(36, 90, 120, 0.25);
}

.cert-slide-img {
  border-radius: 12px;
  max-height: 430px;
  box-shadow: 0 8px 24px rgba(36, 90, 120, 0.18);
  background: white;
}

/* Footer back-home link */
.reveal .footer {
  font-size: 0.45em;
}

.reveal .footer a {
  color: var(--deep-blue);
  font-weight: 600;
}

/* Progress bar */
.reveal .progress {
  color: var(--sky-blue);
}

/* Controls */
.reveal .controls {
  color: var(--deep-blue);
}

/* Small highlight effect */
strong {
  color: var(--deep-blue);
}