/* VARIABLES & GLOBAL */
:root {
  --color-primary: #0c1e45;
  --color-secondary: #0056b3;
  --color-bg: #f4f4f4;
  --color-light: #ffffff;
  --color-muted: #6c757d;
  --spacing-base: 1rem;
  --color-caterpillar: #FFD100;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background: var(--color-bg);
  color: #333;
  margin: 0;
  scroll-behavior: smooth;
  padding-top: 70px;
}

a {
  text-decoration: none;
  color: var(--color-secondary);
  transition: color .2s;
}

a:hover {
  color: var(--color-primary);
}

/* NAVBAR */
.navbar {
  padding: .5rem 1rem;
  background: var(--color-light);
}
.sticky-top {
  position: fixed !important;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 1020;
}
.navbar-brand {
  font-size: 1.5rem;
  color: var(--color-primary);
}
.navbar-nav .nav-link {
  color: #333;
  font-weight: 500;
  margin: 0 .5rem;
  transition: color .2s;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--color-secondary);
  font-weight: 600;
}

/* HERO */
.pd-hero {
  min-height: 75vh;
  display: flex;
  align-items: center;
  background: var(--color-bg);
  padding: calc(var(--spacing-base) * 2) 0;
}
.pd-hero-box {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  max-width: 1100px;
  margin: auto;
  background: var(--color-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  opacity: 0;
  animation: fadeInUp 1s ease-out forwards;
}
.pd-hero-photo {
  flex: 0 0 auto;
  margin-right: 2rem;
  opacity: 0;
  animation: fadeInUp 1s ease-out forwards;
  animation-delay: .3s;
}
.profile-photo {
  width: 300px;
  height: auto;
  object-fit: cover;
  border-radius: 12px !important;
  background: var(--color-bg);
}
.pd-hero-info {
  flex: 1 1 auto;
  padding: var(--spacing-base);
  opacity: 0;
  animation: fadeInUp 1s ease-out forwards;
  animation-delay: .6s;
}
.tagline {
  font-size: 1.5rem;
  color: var(--color-secondary);
  margin-bottom: 1rem;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 991px) {
  .pd-hero-box {
    flex-direction: column;
    text-align: center;
  }
  .pd-hero-photo {
    margin: 0 0 var(--spacing-base);
  }
  .profile-photo {
    width: 100%;
  }
  .pd-hero-info {
    text-align: center;
  }
  .tagline {
    font-size: 1.25rem;
  }
}

/* SOCIAL STRIP */
.social-strip {
  padding: .5rem 0;
  background: var(--color-light);
  text-align: center;
}
.social-strip .social-icon {
  font-size: 2rem;
  margin: 0 .75rem;
  transition: transform .2s;
}
.social-strip .social-icon.linkedin { color: #0A66C2; }
.social-strip .social-icon.github   { color: #333; }
.social-strip .social-icon.google   { color: #4285F4; }
.social-strip .social-icon.youtube  { color: #FF0000; }
.social-strip .social-icon:hover {
  transform: scale(1.1);
}

/* SECTION HEADINGS & SPACING */
.section {
  padding: 2rem 0;
  scroll-margin-top: 90px;
}
.section h2 {
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  font-size: 2rem;
}

/* CARDS & GRID */
.card-hover {
  transition: transform .3s, box-shadow .3s;
  background: var(--color-light);
  border-radius: 8px;
}
.card-hover:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}
#skills .row > .col {
  padding: .5rem;
}

/* PROJECTS CARDS */
#projects .card-hover {
  border: none;
  padding: var(--spacing-base);
  margin-bottom: 1.5rem;
}
#projects .card-hover h5 {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: .75rem;
}
#projects .card-hover p,
#projects .card-hover ul,
#projects .card-hover ol {
  margin-bottom: .75rem;
  color: #444;
}
#projects .card-hover ul,
#projects .card-hover ol {
  margin-left: 1.5rem;
}

/* EXPERIENCE & EDUCATION LOGOS */
.experience-logo,
.education-logo {
  width: 50px;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  transition: transform .2s;
  margin-right: 1rem;
}
.experience-logo:hover,
.education-logo:hover {
  transform: scale(1.05);
}

/* TRAINING LIST */
.training-list li {
  margin-bottom: .75rem;
  font-size: 1rem;
}

/* CONTACT FORM */
.contact-form .form-control {
  border-radius: .25rem;
  box-shadow: none;
}
.contact-form button {
  padding: .75rem 1.5rem;
}

/* FOOTER */
footer {
  background: var(--color-primary);
  color: var(--color-light);
  text-align: center;
  padding: 1.5rem 0;
}

/* Unit Conversion Widget Styles */
.conversion-card {
  max-width: 600px;
  margin-left: 0;    /* flush left */
  margin-right: auto;
  border: none;
  border-radius: .5rem;
}
#unit-conversion .card-header {
  background-color: var(--color-caterpillar) !important;
  border-color: var(--color-caterpillar) !important;
  color: #000 !important;
}
.input-group-text {
  min-width: 3rem;
  justify-content: center;
  background: var(--color-light);
  border: 1px solid var(--color-muted);
}

/* END Unit Conversion Styles */

/* ————————————————————————————
   PD CAD’s Portfolio page overrides
   ———————————————————————————— */
#pd-cad-portfolio {
  /* add a little breathing room */
  padding-top: 2rem;
  padding-bottom: 2rem;
}

#pd-cad-portfolio h2 {
  margin-bottom: 1rem;
  color: var(--color-primary);
}

/* Ensure all CAD cards are equal height + hover lift */
#pd-cad-portfolio .card {
  transition: transform .2s ease, box-shadow .2s ease;
}
#pd-cad-portfolio .card:hover {
  transform: translateY(-5px);
  box-shadow: 0 .75rem 1.5rem rgba(0, 0, 0, .15);
}

/* Make images cover their card headers uniformly */
#pd-cad-portfolio .card-img-top {
  object-fit: cover;
  width: 100%;
  height: 180px;
}

/* Tighter text spacing inside the cards */
#pd-cad-portfolio .card-body {
  padding: 1rem;
}
#pd-cad-portfolio .card-title {
  margin-bottom: .5rem;
  font-size: 1.1rem;
}
#pd-cad-portfolio .card-text {
  font-size: .9rem;
  color: var(--color-muted);
}



/* PD CAD’s Portfolio title color */
#pd-cad-portfolio h2 {
  color: var(--color-muted);
}

/* ————————————————————————————
   PD CAD’s Portfolio: model‐viewer & placeholder styles
   ———————————————————————————— */
/* Make both <model-viewer> and .model-placeholder match image sizing */
#pd-cad-portfolio model-viewer,
#pd-cad-portfolio .model-placeholder {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: #eee;
}

/* Placeholder for missing models */
.model-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f9fa;
  color: var(--color-muted);
  font-style: italic;
}