/* ============================================
   V2 Tunnel Vision Styles — Enhanced
   ============================================ */

/* ---- Preloader (critical fallback) ---- */
#preloader-bar {
  height: 100%;
  background: linear-gradient(to right, #2491b6, #22d3ee);
  width: 0;
  transition: width 100ms ease-out;
  border-radius: 9999px;
}

#v2-app {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: var(--bg-primary);
}

/* ---- Warp Speed Rays ---- */
#v2-warp-rays {
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  perspective: 800px;
  overflow: hidden;
}

#v2-warp-rays.active {
  opacity: 1;
}

.v2-warp-line {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1px;
  height: 100vh;
  background: linear-gradient(to bottom, transparent, rgba(36,145,182,0.6), transparent);
  transform-origin: center center;
  opacity: 0;
}

/* ---- Workflow Grid Background ---- */
#v2-workflow-grid {
  position: absolute;
  inset: -50%;
  width: 200%;
  height: 200%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.4;
}

/* ---- Tunnel ---- */
#v2-tunnel {
  position: absolute;
  inset: 0;
  perspective: 1200px;
}

#v2-tunnel-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
}

/* ---- Sections ---- */
.v2-section {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  pointer-events: none;
  transform-style: preserve-3d;
  backface-visibility: hidden;
  opacity: 0;
  background: var(--bg-primary);
  z-index: 0;
}

.v2-section.active {
  pointer-events: auto;
  z-index: 10;
}

/* ---- Controls ---- */
#v2-controls {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.45rem 1rem;
  border-radius: 16px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(1.6);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}
@media (max-width: 768px) {
  #v2-controls {
    left: 0.5rem;
    right: 0.5rem;
    transform: none;
    max-width: none;
  }
  #v2-progress {
    flex: 1;
    min-width: 0;
    max-width: calc(100% - 5rem);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  #v2-progress::-webkit-scrollbar { display: none; }
}

/* ---- Progress Bar with Workflow Nodes ---- */
#v2-progress {
  display: flex;
  align-items: center;
  gap: 0;
  position: relative;
}
#v2-progress::-webkit-scrollbar { display: none; }
.v2-node-wrapper.active { scroll-snap-align: center; }

/* Node wrapper */
.v2-node-wrapper {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
  z-index: 1;
}

/* Node card */
.v2-node {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 4px 8px;
  border-radius: 8px;
  background: var(--glass-bg);
  border: 1.5px solid var(--glass-border);
  transition: all 0.3s ease;
  position: relative;
}

.v2-node-wrapper.active .v2-node {
  border-color: var(--accent);
  background: rgba(36,145,182,0.12);
  box-shadow: 0 0 16px rgba(36,145,182,0.2);
}

.v2-node-wrapper.visited .v2-node {
  border-color: rgba(34,197,94,0.3);
}

.v2-node-wrapper.locked .v2-node {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Pins (input/output circles on node edges) */
.v2-node-pin {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.v2-node-wrapper.active .v2-node-pin {
  background: var(--accent);
  box-shadow: 0 0 6px rgba(36,145,182,0.6);
}

/* Status dot inside node */
.v2-node-status {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
  transition: background 0.3s ease;
}

.v2-node-wrapper.active .v2-node-status {
  background: var(--accent);
}

.v2-node-wrapper.visited .v2-node-status {
  background: #22c55e;
}

.v2-node-wrapper.locked .v2-node-status {
  background: #ef4444;
}

/* Label */
.v2-node-label {
  font-size: 0.62rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color 0.3s ease;
}

.v2-node-wrapper.active .v2-node-label {
  color: var(--text-primary);
}

/* Connector line between nodes (SVG) */
.v2-node-connector {
  width: 16px;
  height: 8px;
  flex-shrink: 0;
  z-index: 2;
  align-self: center;
  display: block;
}

/* Data packet (small circle animated along connectors) */
#v2-data-packet {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 8px rgba(36,145,182,0.9);
  z-index: 3;
  opacity: 0;
  pointer-events: none;
  top: 50%;
  transform: translateY(-50%);
}

#v2-prev,
#v2-next {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid var(--glass-border);
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 1;
}

#v2-prev:hover:not(:disabled),
#v2-next:hover:not(:disabled) {
  background: var(--glass-bg);
  color: var(--accent);
  border-color: var(--accent);
}

#v2-prev:disabled,
#v2-next:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ---- Top Controls ---- */
#v2-top-controls {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ---- Social Links (always visible) ---- */

/* ---- Swipe Hint ---- */
#v2-swipe-hint {
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 90;
  font-size: 0.65rem;
  color: var(--text-muted);
  pointer-events: none;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-family: 'JetBrains Mono', monospace;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}
#v2-swipe-hint span {
  opacity: 0.4;
}
#v2-swipe-hint .swipe-arrow {
  width: 1.2rem;
  height: 1.2rem;
  opacity: 1;
  animation: swipeBounce 2s ease-in-out infinite;
}
@keyframes swipeBounce {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(6px); opacity: 0.8; }
}

@media (min-width: 768px) {
  #v2-swipe-hint {
    display: none;
  }
}

/* ---- Active Section Scroll Behaviour ---- */
.v2-section.active {
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.v2-section.active::-webkit-scrollbar {
  display: none;
}

/* Smooth scrolling for sections */

/* Smooth scrolling for sections */
.v2-section {
  scroll-behavior: smooth;
}

/* ---- Mobile Hero Optimizations ---- */
@media (max-width: 768px) {
  #hero .relative img {
    width: 96px;
    height: 96px;
  }
  #hero h1#hero-name {
    font-size: 2rem;
  }
  #hero p#hero-subtitle {
    font-size: 1rem;
  }
  #hero .v2-nav-btn,
  #hero a[href^="https"] {
    padding: 0.75rem 1.5rem;
    font-size: 0.8rem;
  }
}

/* ---- Content Padding for Fixed Overlays ---- */
.v2-section > div {
  padding-right: 24px;
  padding-bottom: 140px;
}

/* ---- Skill Cards Alignment Fix ---- */
.skill-card {
  transform: translateZ(0);
}

/* ---- Form Labels ---- */
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
  top: -1.25rem;
  font-size: 0.75rem;
  color: var(--accent);
}

/* ---- Lock Overlay ---- */
#contact-lock-overlay svg {
  animation: lockPulse 2s ease-in-out infinite;
}
@keyframes lockPulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.08); }
}

/* ---- Trophy Button ---- */
#trophy-btn.pulse {
  animation: trophyPulse 0.5s ease-in-out 3;
}
#trophy-btn.all-unlocked {
  color: #fbbf24 !important;
  filter: drop-shadow(0 0 6px rgba(251,191,36,0.5));
}
@keyframes trophyPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.25); }
}

/* ---- Achievement Modal ---- */
#achievement-modal {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
#achievement-modal.open {
  opacity: 1;
  pointer-events: auto;
}

/* ---- First Visit Toast ---- */
#first-visit-toast {
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 1rem);
  display: flex;
  transition: opacity 0.5s ease, transform 0.5s ease;
  backdrop-filter: blur(16px);
}

[data-theme="light"] #first-visit-toast {
  background: rgba(255,255,255,0.92);
}

#first-visit-toast.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

/* ---- Version Switcher ---- */
.version-switcher { position: relative; z-index: 101; }
.version-menu {
  position: absolute; top: calc(100% + 0.5rem); right: 0; min-width: 10rem;
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: all 0.2s ease; z-index: 102;
}
.version-switcher:hover .version-menu,
.version-switcher:focus-within .version-menu {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.version-menu a {
  display: block; padding: 0.55rem 1rem; font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace; transition: background 0.15s ease;
}
.version-menu a:hover { background: rgba(255,255,255,0.05); }
.version-menu-header {
  font-family: 'JetBrains Mono', monospace; pointer-events: none; user-select: none;
}

/* ---- Mobile Achievements Toggle (above controls bar) ---- */
#mobile-achievements-toggle {
  bottom: 6.5rem !important;
}