/* -------------------------------------------------------
   Global Base
   ------------------------------------------------------- */
:root {
  --tk-transition-speed: 0.25s;
}

html, body {
  font-family: 'Roboto', sans-serif;
  background-color: var(--bs-body-bg);
  color: var(--bs-body-color);
  scroll-behavior: smooth;
  transition: background-color var(--tk-transition-speed) ease,
              color var(--tk-transition-speed) ease;
}

/* Improve default link visibility across themes */
a {
  text-decoration: none;
  color: var(--bs-link-color);
  transition: color var(--tk-transition-speed) ease;
}
a:hover,
a:focus-visible {
  text-decoration: underline;
  color: var(--bs-link-hover-color);
  outline: none;
}

/* -------------------------------------------------------
   Navbar
   ------------------------------------------------------- */
.navbar {
  --bs-navbar-padding-y: 0.75rem;
  transition: background-color var(--tk-transition-speed) ease,
              border-color var(--tk-transition-speed) ease;
}

.navbar-brand {
  letter-spacing: 0.5px;
}

.navbar .nav-link {
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  transition: background-color var(--tk-transition-speed) ease,
              color var(--tk-transition-speed) ease;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus-visible,
.navbar .nav-link.active {
  background-color: var(--bs-secondary-bg);
  color: var(--bs-body-color);
  text-decoration: none;
}

/* Theme switch spacing */
.theme-toggle .form-check-input {
  cursor: pointer;
}
.theme-toggle .form-check-label {
  cursor: pointer;
  user-select: none;
  margin-left: 0.25rem;
}

/* Compact the switch a bit */
.theme-toggle .form-check-input {
  width: 2.25em;
  height: 1.25em;
}

/* -------------------------------------------------------
   Hero / About
   ------------------------------------------------------- */
#about {
  max-width: 800px;
  margin-inline: auto;
  transition: background-color var(--tk-transition-speed) ease,
              color var(--tk-transition-speed) ease;
}

/* Optional subtle background separation in dark mode */
html[data-bs-theme='dark'] #about {
  background-color: var(--bs-dark-bg-subtle);
  border-radius: 0.5rem;
  padding-inline: 1rem;
}

/* Extra vertical breathing room on larger screens */
@media (min-width: 992px) {
  #about {
    padding-top: 6rem !important;
    padding-bottom: 6rem !important;
  }
}

/* -------------------------------------------------------
   Skills Section
   ------------------------------------------------------- */
#skills {
  /* Use theme-friendly secondary surface color */
  background-color: var(--bs-secondary-bg) !important;
  color: var(--bs-body-color);
  transition: background-color var(--tk-transition-speed) ease,
              color var(--tk-transition-speed) ease;
}

#skills h2 {
  color: var(--bs-body-color);
}

#skills .badge {
  font-size: 1rem;
  padding: 0.75em 1.25em;
  /* Add a subtle glow that adapts to theme */
  box-shadow: 0 1px 2px rgba(0,0,0,.15);
  transition: transform var(--tk-transition-speed) ease,
              box-shadow var(--tk-transition-speed) ease;
  cursor: default;
}

#skills .badge:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
}

/* -------------------------------------------------------
   Footer
   ------------------------------------------------------- */
footer {
  background-color: var(--bs-secondary-bg);
  color: var(--bs-body-color) !important;
  border-top: 1px solid var(--bs-border-color);
  transition: background-color var(--tk-transition-speed) ease,
              color var(--tk-transition-speed) ease,
              border-color var(--tk-transition-speed) ease;
}

footer a {
  color: var(--bs-link-color);
}
footer a:hover {
  color: var(--bs-link-hover-color);
  text-decoration: underline;
}

/* -------------------------------------------------------
   Utility Helpers
   ------------------------------------------------------- */

/* Visually-hidden but accessible text if needed */
.visually-hidden-focusable:not(:focus):not(:focus-within) {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  border: 0;
  padding: 0;
}

/* Smooth fade-in for images/cards if you add later */
.tk-fade {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.tk-fade.tk-show {
  opacity: 1;
  transform: none;
}


/* Project cards */
.tk-proj-card {
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.tk-proj-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 0.5rem 1.25rem rgba(0,0,0,.15);
}
.tk-proj-card .card-title {
  margin-bottom: 0.5rem;
}
.tk-proj-card .card-text {
  margin-bottom: 0.75rem;
}
.tk-proj-card ul li {
  margin-bottom: 0.25rem;
}