/* ========================================
   COMPONENTS — Reusable building blocks
   ======================================== */

/* ---- Overlays ---- */
#three-canvas {
  position: fixed;
  inset: 0;
  z-index: var(--z-canvas);
}

#particle-canvas {
  position: fixed;
  inset: 0;
  z-index: var(--z-particles);
  pointer-events: none;
}

.scanlines {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlays);
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
}

[data-theme="light"] .scanlines {
  background: none;
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlays);
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.55) 100%);
}

[data-theme="light"] .vignette {
  background: radial-gradient(ellipse at center, transparent 60%, rgba(240,237,245,0.3) 100%);
}

/* ---- Sidebar Navigation ---- */
nav#sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: var(--z-sidebar);
  width: 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 0;
  border-right: 1px solid var(--border-subtle);
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(10px);
  transition: transform 0.4s var(--ease-out);
}

nav#sidebar .nav-item {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--secondary);
  text-transform: uppercase;
  margin: 16px 0;
  cursor: pointer;
  transition: color 0.3s ease, text-shadow 0.3s ease;
  position: relative;
  padding: 8px 0;
}

nav#sidebar .nav-item:hover,
nav#sidebar .nav-item.active {
  color: var(--accent-cyan);
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.6);
}

nav#sidebar .nav-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--secondary);
  margin: 8px 0;
}

/* ---- Hamburger (mobile) ---- */
.hamburger {
  display: none;
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: var(--z-hamburger);
  background: var(--primary);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--accent-cyan);
  transition: all 0.3s ease;
  border-radius: 1px;
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---- Mobile Nav Overlay ---- */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-mobile-nav);
  background: rgba(13, 13, 13, 0.95);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.mobile-nav-overlay.open { display: flex; }

.mobile-nav-overlay a {
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: 0.3em;
  color: var(--secondary);
  text-transform: uppercase;
  transition: color 0.3s;
}

.mobile-nav-overlay a:hover { color: var(--accent-cyan); }

/* ---- Floating Buttons ---- */
.floating-btn {
  position: fixed;
  z-index: var(--z-hamburger);
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  background: rgba(13, 13, 13, 0.8);
  backdrop-filter: blur(8px);
  color: var(--secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.3s ease;
}

.floating-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.floating-btn.top-right-1 { top: 20px; right: 20px; }

/* ---- Cards (Projects) ---- */
.project-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.4s var(--ease-out),
              border-color 0.4s var(--ease-out),
              box-shadow 0.4s var(--ease-out);
  min-height: 320px;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.15), 0 20px 40px rgba(0, 0, 0, 0.4);
}

.project-card .card-titlebar {
  display: flex;
  align-items: center;
  padding: 10px 14px;
  background: var(--primary);
  border-bottom: 1px solid var(--border-subtle);
  gap: 8px;
}

.project-card .card-titlebar .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.project-card .card-titlebar .c1 { background: var(--glitch-pink); }
.project-card .card-titlebar .c2 { background: var(--accent-orange); }
.project-card .card-titlebar .c3 { background: var(--glitch-mint); }

.project-card .card-titlebar .card-title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--secondary);
  margin-left: 8px;
}

.project-card .card-body {
  flex: 1;
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.project-card .card-body::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(0, 229, 255, 0.06) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.project-card:hover .card-body::before { opacity: 1; }

.project-card .card-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  letter-spacing: 0.12em;
}

.project-card .card-name {
  font-family: var(--font-sans);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.project-card .card-desc {
  font-size: 14px;
  color: var(--text-body);
  margin-bottom: 20px;
  line-height: 1.6;
}

.project-card .card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-card .card-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border: 1px solid var(--border-subtle);
  border-radius: 3px;
  color: var(--secondary);
  transition: border-color 0.3s ease, color 0.3s ease;
}

.project-card:hover .card-tag {
  border-color: var(--secondary);
  color: var(--accent-cyan);
}

.project-card .card-hover-shape {
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 160px;
  height: 160px;
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  transform: rotate(15deg);
  opacity: 0.15;
  transition: all 0.5s ease;
  pointer-events: none;
}

.project-card:hover .card-hover-shape {
  border-color: var(--accent-orange);
  transform: rotate(25deg) scale(1.1);
  opacity: 0.3;
  box-shadow: 0 0 30px rgba(245, 166, 35, 0.2);
}

.project-card .card-glitch {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 2;
}

.project-card:hover .card-glitch {
  opacity: 1;
  animation: cardGlitch 0.3s ease forwards;
}

@keyframes cardGlitch {
  0%   { clip-path: inset(10% 0 85% 0);  transform: translate(-3px, 0); }
  10%  { clip-path: inset(30% 0 60% 0);  transform: translate(4px, -2px); }
  20%  { clip-path: inset(60% 0 20% 0);  transform: translate(-5px, 1px); }
  30%  { clip-path: inset(20% 0 65% 0);  transform: translate(6px, 0); }
  40%  { clip-path: inset(50% 0 35% 0);  transform: translate(-3px, -1px); }
  50%  { clip-path: inset(75% 0 10% 0);  transform: translate(5px, 4px); }
  60%  { clip-path: inset(15% 0 75% 0);  transform: translate(-6px, 0); }
  70%  { clip-path: inset(45% 0 40% 0);  transform: translate(3px, -2px); }
  80%  { clip-path: inset(80% 0 5% 0);   transform: translate(-4px, 3px); }
  90%  { clip-path: inset(35% 0 50% 0);  transform: translate(5px, 0); }
  100% { clip-path: inset(0 0 0 0);      transform: translate(0); }
}

/* ---- Skill Bars ---- */
.skill-category {
  flex: 1 1 300px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 28px;
  transition: border-color 0.3s ease;
}

.skill-category:hover { border-color: var(--secondary); }

.skill-category .skill-cat-name {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent-orange);
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.skill-category .skill-cat-name::before {
  content: '>';
  color: var(--accent-cyan);
}

.skill-bar-wrap { margin-bottom: 16px; }

.skill-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-body);
  margin-bottom: 6px;
}

.skill-bar-track {
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
  overflow: hidden;
}

.skill-bar-fill {
  height: 100%;
  background: var(--accent-cyan);
  border-radius: 2px;
  width: 0;
  transition: width 1.2s var(--ease-out);
  box-shadow: 0 0 6px rgba(0, 229, 255, 0.4);
}

/* ---- Custom Cursor ---- */
.cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 12px var(--accent-cyan), 0 0 24px rgba(0, 229, 255, 0.5);
  transition: width 0.15s ease, height 0.15s ease, background 0.15s ease;
}

.cursor-dot.hover {
  width: 18px;
  height: 18px;
  background: var(--accent-orange);
  box-shadow: 0 0 18px var(--accent-orange), 0 0 36px rgba(245, 166, 35, 0.5);
}

.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 36px;
  height: 36px;
  border: 1px solid var(--accent-cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: calc(var(--z-cursor) - 1);
  transform: translate(-50%, -50%);
  opacity: 0.5;
  transition: width 0.2s ease, height 0.2s ease, opacity 0.2s ease,
              border-color 0.2s ease;
}

.cursor-ring.hover {
  width: 50px;
  height: 50px;
  border-color: var(--accent-orange);
  opacity: 0.8;
}

/* ---- Contact Card ---- */
.contact-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 48px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.contact-card .contact-cta {
  display: inline-block;
  margin-top: 24px;
  padding: 14px 36px;
  border: 1px solid var(--accent-orange);
  color: var(--accent-orange);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.3s ease;
  background: transparent;
  cursor: pointer;
}

.contact-card .contact-cta:hover {
  background: var(--accent-orange);
  color: var(--bg-deep);
  box-shadow: 0 0 24px rgba(245, 166, 35, 0.4);
}

/* ---- Social Links ---- */
.social-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 36px;
}

.social-links a {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  transition: all 0.3s var(--ease-out);
  text-decoration: none;
}

.social-links a:nth-child(1):hover {
  border-color: #f5f5f5;
  color: #f5f5f5;
  box-shadow: 0 0 16px rgba(245, 245, 245, 0.25);
}

.social-links a:nth-child(2):hover {
  border-color: #0A66C2;
  color: #0A66C2;
  box-shadow: 0 0 16px rgba(10, 102, 194, 0.35);
}

/* ---- 3D Card Tilt ---- */
.card-3d {
  transition: transform 0.55s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.55s cubic-bezier(0.16, 1, 0.3, 1);
  transform-style: preserve-3d;
}

.card-glare {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.35s ease;
}