/* ============================================================
   PORTFOLIO INTERACTIVE STYLES
   ============================================================ */

/* ---- Reading Progress Bar ---- */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, #10b981, #2563eb, #7c3aed);
  z-index: 9999;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* ---- Back to Top Button ---- */
#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, #1e3a8a, #2563eb);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.45);
  opacity: 0;
  transform: translateY(12px) scale(0.85);
  transition: opacity 0.3s ease, transform 0.3s ease, box-shadow 0.2s ease;
  z-index: 1000;
}

#back-to-top.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

#back-to-top:hover {
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.65);
  transform: translateY(-2px) scale(1.05);
}

/* ---- Scroll Reveal ---- */
.sr-hidden {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.sr-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Typing Animation ---- */
.hero-role {
  font-size: 1.25em;
  font-weight: 600;
  color: #2563eb;
  margin: -10px 0 24px;
  letter-spacing: 0.01em;
  min-height: 1.6em;
}

#typing-text {
  border-right: 2px solid #2563eb;
  padding-right: 3px;
  animation: blink-cursor 0.75s step-end infinite;
}

@keyframes blink-cursor {
  0%, 100% { border-color: #2563eb; }
  50%       { border-color: transparent; }
}

/* ---- Dark Mode Toggle ---- */
#dark-mode-toggle {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  color: #fff;
  cursor: pointer;
  font-size: 16px;
  padding: 4px 10px;
  margin-right: 12px;
  vertical-align: middle;
  transition: background 0.2s ease, transform 0.15s ease;
}

#dark-mode-toggle:hover {
  background: rgba(255, 255, 255, 0.28);
  transform: scale(1.08);
}

/* ---- Active Nav Link ---- */
.site-nav .nav-active {
  border-bottom: 2px solid rgba(255, 255, 255, 0.8) !important;
  padding-bottom: 2px;
}

/* ---- Header Particles Canvas ---- */
#particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* Keep header content above canvas */
.site-header .wrapper {
  position: relative;
  z-index: 1;
}

/* ---- Tech Stack Pill Badges ---- */
.tech-stack-row {
  line-height: 2.4;
}

.tech-tag-group {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-left: 4px;
}

.tech-tag {
  display: inline-block;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  color: #1e40af;
  border: 1px solid #bfdbfe;
  border-radius: 14px;
  padding: 2px 10px;
  font-size: 0.82em;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  cursor: default;
}

.tech-tag:hover {
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  transform: translateY(-1px);
  box-shadow: 0 3px 8px rgba(37, 99, 235, 0.25);
}

/* ---- Section Heading Glow on Hover ---- */
.section-glow {
  transition: color 0.2s ease;
}

.section-glow:hover {
  color: #2563eb;
}

/* ---- Animated Stat Numbers ---- */
[data-count] {
  font-weight: 700;
  color: #1e3a8a;
  font-size: 1.1em;
}

/* ============================================================
   DARK MODE
   ============================================================ */
body.dark-mode {
  background-color: #0f172a !important;
  color: #cbd5e1 !important;
}

body.dark-mode .page-content .wrapper,
body.dark-mode .page-content {
  background: #1e293b !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5) !important;
  color: #cbd5e1 !important;
}

body.dark-mode h1 {
  color: #93c5fd !important;
  border-bottom-color: #3b82f6 !important;
}

body.dark-mode h2 {
  color: #7dd3fc !important;
  border-left-color: #3b82f6 !important;
}

body.dark-mode h3 {
  color: #bae6fd !important;
}

body.dark-mode p,
body.dark-mode li,
body.dark-mode strong {
  color: #cbd5e1 !important;
}

body.dark-mode a {
  color: #60a5fa !important;
}

body.dark-mode a:hover {
  color: #93c5fd !important;
}

body.dark-mode code {
  background-color: #334155 !important;
  color: #fca5a5 !important;
}

body.dark-mode pre {
  background-color: #0f172a !important;
  border: 1px solid #334155;
}

body.dark-mode hr {
  border-top-color: #334155 !important;
}

body.dark-mode .tech-tag {
  background: linear-gradient(135deg, #1e3a5f, #1e3a8a) !important;
  color: #93c5fd !important;
  border-color: #3b82f6 !important;
}

body.dark-mode .tech-tag:hover {
  background: linear-gradient(135deg, #1e40af, #1d4ed8) !important;
}

body.dark-mode .hero-role {
  color: #60a5fa !important;
}

body.dark-mode #typing-text {
  border-right-color: #60a5fa !important;
}

body.dark-mode [data-count] {
  color: #93c5fd !important;
}

body.dark-mode ul li::before {
  color: #34d399 !important;
}

/* ============================================================
   RESPONSIVE TWEAKS
   ============================================================ */
@media screen and (max-width: 600px) {
  #back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    font-size: 18px;
  }

  .hero-role {
    font-size: 1.05em;
  }

  .tech-tag {
    font-size: 0.78em;
    padding: 2px 8px;
  }
}