/* ==========================================================================
   TKJ PORTAL CYBER TECH STYLESHEET
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* Default Dark Mode (Cyber Space) */
  --font-sans: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --bg-primary: #020617; /* Dark slate-950 */
  --bg-secondary: #0f172a; /* Slate-900 */
  --bg-tertiary: #1e293b; /* Slate-800 */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  
  --glow-cyan: rgba(6, 182, 212, 0.45);
  --glow-violet: rgba(139, 92, 246, 0.45);
  --glow-emerald: rgba(16, 185, 129, 0.45);
  --glow-rose: rgba(244, 63, 94, 0.45);
  
  --neon-cyan: #06b6d4;
  --neon-violet: #8b5cf6;
  --neon-emerald: #10b981;
  --neon-rose: #f43f5e;
  
  --border-glass: rgba(255, 255, 255, 0.08);
  --bg-glass: rgba(15, 23, 42, 0.65);
}

[data-theme="light"] {
  /* Premium Light Mode (Clean Cyber) */
  --bg-primary: #f8fafc; /* Slate-50 */
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9; /* Slate-100 */
  --text-primary: #0f172a; /* Slate-900 */
  --text-secondary: #475569; /* Slate-600 */
  
  --glow-cyan: rgba(6, 182, 212, 0.15);
  --glow-violet: rgba(139, 92, 246, 0.15);
  --glow-emerald: rgba(16, 185, 129, 0.15);
  --glow-rose: rgba(244, 63, 94, 0.15);
  
  --neon-cyan: #0891b2;
  --neon-violet: #7c3aed;
  --neon-emerald: #059669;
  --neon-rose: #e11d48;
  
  --border-glass: rgba(15, 23, 42, 0.08);
  --bg-glass: rgba(255, 255, 255, 0.85);
}

html {
  overflow-x: hidden;
  max-width: 100vw;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1), color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  position: relative;
}

/* Glassmorphism elements */
.glass {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
}

.glass-premium {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.07) 100%);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 40px 0 rgba(0, 0, 0, 0.3);
}

[data-theme="light"] .glass-premium {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.02) 0%, rgba(15, 23, 42, 0.05) 100%);
  border: 1px solid rgba(15, 23, 42, 0.1);
  box-shadow: 0 10px 40px 0 rgba(15, 23, 42, 0.05);
}

/* Cyber Neon Glows */
.neon-border-cyan {
  border: 1px solid var(--neon-cyan);
  box-shadow: 0 0 12px var(--glow-cyan);
}

.neon-border-violet {
  border: 1px solid var(--neon-violet);
  box-shadow: 0 0 12px var(--glow-violet);
}

.neon-border-emerald {
  border: 1px solid var(--neon-emerald);
  box-shadow: 0 0 12px var(--glow-emerald);
}

.text-neon-cyan {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px var(--glow-cyan);
}

.text-neon-violet {
  color: var(--neon-violet);
  text-shadow: 0 0 8px var(--glow-violet);
}

.text-neon-emerald {
  color: var(--neon-emerald);
  text-shadow: 0 0 8px var(--glow-emerald);
}

/* Background Cyber Grid Animation */
.cyber-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(6, 182, 212, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(6, 182, 212, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 60%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 60%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

[data-theme="light"] .cyber-grid {
  background-image: 
    linear-gradient(to right, rgba(6, 182, 212, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(6, 182, 212, 0.07) 1px, transparent 1px);
}

/* Tech glowing pulses */
@keyframes techPulse {
  0%, 100% {
    opacity: 0.2;
    transform: scale(0.98);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.02);
  }
}

.cyber-pulse-glow {
  animation: techPulse 8s infinite ease-in-out;
}

/* Interactive elements */
.hover-neon-cyan:hover {
  transform: translateY(-2px);
  border-color: var(--neon-cyan);
  box-shadow: 0 0 15px var(--glow-cyan);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-neon-violet:hover {
  transform: translateY(-2px);
  border-color: var(--neon-violet);
  box-shadow: 0 0 15px var(--glow-violet);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-neon-emerald:hover {
  transform: translateY(-2px);
  border-color: var(--neon-emerald);
  box-shadow: 0 0 15px var(--glow-emerald);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-neon-rose:hover {
  transform: translateY(-2px);
  border-color: var(--neon-rose);
  box-shadow: 0 0 15px var(--glow-rose);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Code block styles */
code, pre {
  font-family: var(--font-mono);
}

/* Scrollbar adjustments */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neon-cyan);
}

/* Buttons */
.btn-cyber-cyan {
  background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
  color: #020617 !important;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid var(--neon-cyan);
  box-shadow: 0 0 10px var(--glow-cyan);
  transition: all 0.3s ease;
}
.btn-cyber-cyan:hover {
  box-shadow: 0 0 20px var(--neon-cyan);
  transform: translateY(-1px);
}

.btn-cyber-violet {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  color: #ffffff !important;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid var(--neon-violet);
  box-shadow: 0 0 10px var(--glow-violet);
  transition: all 0.3s ease;
}
.btn-cyber-violet:hover {
  box-shadow: 0 0 20px var(--neon-violet);
  transform: translateY(-1px);
}

.btn-cyber-outline {
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  background: transparent;
  transition: all 0.3s ease;
}
.btn-cyber-outline:hover {
  border-color: var(--neon-cyan);
  background: rgba(6, 182, 212, 0.05);
  box-shadow: 0 0 10px var(--glow-cyan);
}

/* Canvas styling */
#simulator-canvas {
  background-color: #020617;
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 8px;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.8), 0 0 15px rgba(6, 182, 212, 0.1);
}

[data-theme="light"] #simulator-canvas {
  background-color: #030712; /* Keep canvas dark for optimal node visibility */
}

/* Device Config Sidebar & Cisco CLI Terminal */
#deviceSidebar {
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.55);
}

#cliOutput::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

#cliOutput::-webkit-scrollbar-track {
  background: #000000;
}

#cliOutput::-webkit-scrollbar-thumb {
  background: rgba(16, 185, 129, 0.3);
  border-radius: 2px;
}

#cliOutput::-webkit-scrollbar-thumb:hover {
  background: rgba(16, 185, 129, 0.6);
}

/* Hide scrollbar utility */
.scrollbar-none::-webkit-scrollbar {
  display: none;
}
.scrollbar-none {
  -ms-overflow-style: none;  /* IE and Edge */
  scrollbar-width: none;  /* Firefox */
}

/* ==========================================================================
   TKJ ADVANCED CYBER REDESIGN ADDITIONS (SUPER PREMIUM)
   ========================================================================== */

/* High-fidelity Parallax Engine */
.parallax-container {
  position: relative;
  overflow: hidden;
  perspective: 1000px;
}
.parallax-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 120%;
  pointer-events: none;
  will-change: transform;
}

/* Blinking LEDs for Port Switches & Server Cabs */
@keyframes led-blink-fast {
  0%, 100% { opacity: 1; filter: drop-shadow(0 0 4px var(--neon-emerald)); }
  50% { opacity: 0.2; filter: drop-shadow(0 0 0px transparent); }
}
@keyframes led-blink-slow {
  0%, 100% { opacity: 1; filter: drop-shadow(0 0 4px #eab308); }
  50% { opacity: 0.3; filter: drop-shadow(0 0 0px transparent); }
}
@keyframes led-blink-fail {
  0%, 100% { opacity: 1; filter: drop-shadow(0 0 5px #ef4444); }
  50% { opacity: 0.1; filter: drop-shadow(0 0 0px transparent); }
}

.led-active {
  animation: led-blink-fast 0.8s infinite ease-in-out;
}
.led-warning {
  animation: led-blink-slow 1.4s infinite ease-in-out;
}
.led-error {
  animation: led-blink-fail 0.5s infinite ease-in-out;
}

/* Laser scanlines across futuristic blocks */
@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}
.scanline-container {
  position: relative;
  overflow: hidden;
}
.scanline-container::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, transparent, var(--neon-cyan), transparent);
  opacity: 0.4;
  pointer-events: none;
  animation: scanline 4s infinite linear;
}

/* Data Core Matrix Rain / Cyber Grid Accent */
.hologram-grid {
  background-image: 
    radial-gradient(var(--border-glass) 1px, transparent 0),
    radial-gradient(var(--border-glass) 1px, transparent 0);
  background-size: 16px 16px;
  background-position: 0 0, 8px 8px;
}

/* Circuit path glow pulses */
@keyframes circuitGlow {
  0% { stroke-dashoffset: 100; opacity: 0.2; }
  50% { opacity: 1; }
  100% { stroke-dashoffset: 0; opacity: 0.2; }
}
.circuit-line {
  stroke-dasharray: 20 10;
  animation: circuitGlow 6s infinite linear;
}

/* Fibre optic packet flow */
@keyframes opticPulse {
  0% { stroke-dashoffset: 200; }
  100% { stroke-dashoffset: 0; }
}
.optic-flow {
  stroke-dasharray: 10 30;
  animation: opticPulse 4s infinite linear;
}

/* Type Caret effect for Terminal */
@keyframes blink-caret {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}
.terminal-caret::after {
  content: '_';
  font-weight: bold;
  animation: blink-caret 0.9s infinite steps(2, start);
  color: var(--neon-emerald);
}

/* Premium Card Corner Accents */
.cyber-corners {
  position: relative;
}
.cyber-corners::before, .cyber-corners::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  border-style: solid;
  border-color: rgba(6, 182, 212, 0.4);
  pointer-events: none;
  transition: border-color 0.3s ease;
}
.cyber-corners::before {
  top: 0;
  left: 0;
  border-width: 2px 0 0 2px;
}
.cyber-corners::after {
  bottom: 0;
  right: 0;
  border-width: 0 2px 2px 0;
}
.cyber-corners:hover::before, .cyber-corners:hover::after {
  border-color: var(--neon-cyan);
}

/* Premium Sideglow Cards */
.sideglow-cyan {
  border-left: 3px solid var(--neon-cyan);
}
.sideglow-violet {
  border-left: 3px solid var(--neon-violet);
}
.sideglow-emerald {
  border-left: 3px solid var(--neon-emerald);
}

/* Server rack indicators styling */
.rack-slot {
  position: relative;
  background: rgba(2, 6, 23, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.rack-slot::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  width: 2px;
  height: 60%;
  background: var(--neon-cyan);
  transform: translateY(-50%);
}

/* BIOS-Cisco styled preloader */
#cyber-preloader {
  position: fixed;
  inset: 0;
  background: #020617;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.8s;
  overflow: hidden;
}
#cyber-preloader.fade-out {
  opacity: 0;
  visibility: hidden;
}

@keyframes bios-rotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.bios-loader-ring {
  border: 2px dashed rgba(6, 182, 212, 0.2);
  border-top-color: var(--neon-cyan);
  border-bottom-color: var(--neon-violet);
  animation: bios-rotate 4s linear infinite;
}

/* Right side Cyber Scroll Navigator (Rack Unit Selector) */
.cyber-scroll-nav {
  position: fixed;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px 8px;
  background: rgba(2, 6, 23, 0.7);
  border: 1px solid rgba(6, 182, 212, 0.15);
  border-radius: 99px;
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}
.scroll-nav-dot {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}
.scroll-nav-dot:hover, .scroll-nav-dot.active {
  background: var(--neon-cyan);
  box-shadow: 0 0 10px var(--neon-cyan);
  transform: scale(1.2);
}
.scroll-nav-label {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%) translateX(10px);
  background: rgba(2, 6, 23, 0.9);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.scroll-nav-dot:hover .scroll-nav-label {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* Blade Server gold links for achievements */
@keyframes led-blink-gold {
  0%, 100% { opacity: 1; filter: drop-shadow(0 0 4px #fbbf24); }
  50% { opacity: 0.2; filter: drop-shadow(0 0 0px transparent); }
}
.led-gold {
  animation: led-blink-gold 1s infinite ease-in-out;
}

.gold-glow:hover {
  border-color: #fbbf24 !important;
  box-shadow: 0 0 20px rgba(251, 191, 36, 0.15);
  transition: all 0.4s ease;
}

/* ==========================================================================
   MODULE 1: UTP CABLE CRIMPING SIMULATOR (Grade 10)
   ========================================================================== */

/* RJ45 connector visual */
.rj45-connector {
  background: linear-gradient(180deg, #d4d4d8 0%, #a1a1aa 40%, #71717a 100%);
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: inset 0 2px 4px rgba(255,255,255,0.2), 0 4px 12px rgba(0,0,0,0.5);
  border-radius: 4px 4px 2px 2px;
}

/* Wire drag handle */
.crimping-wire {
  cursor: grab;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  user-select: none;
  border-radius: 3px;
  font-size: 9px;
  font-weight: 700;
}
.crimping-wire:active {
  cursor: grabbing;
  transform: scale(1.08);
  box-shadow: 0 0 12px rgba(255,255,255,0.2);
}
.crimping-wire.correct {
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
  border-color: #10b981 !important;
}
.crimping-wire.incorrect {
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.5);
  border-color: #ef4444 !important;
  animation: shake-wire 0.3s ease;
}

@keyframes shake-wire {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

/* Crimp animation */
@keyframes crimp-press {
  0% { transform: scaleY(1); }
  30% { transform: scaleY(0.85); }
  60% { transform: scaleY(0.92); }
  100% { transform: scaleY(1); }
}
.crimp-active {
  animation: crimp-press 0.6s ease-in-out;
}

/* Cable tester LEDs */
.cable-tester-led {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  transition: all 0.3s ease;
}
.cable-tester-led.pass {
  background: #10b981;
  box-shadow: 0 0 8px rgba(16,185,129,0.6);
}
.cable-tester-led.fail {
  background: #ef4444;
  box-shadow: 0 0 8px rgba(239,68,68,0.6);
}
.cable-tester-led.idle {
  background: #334155;
}

/* Pin slot in RJ45 */
.pin-slot {
  min-height: 36px;
  border: 2px dashed rgba(255,255,255,0.1);
  border-radius: 4px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pin-slot.drag-over {
  border-color: #06b6d4;
  background: rgba(6,182,212,0.08);
  box-shadow: inset 0 0 8px rgba(6,182,212,0.15);
}
.pin-slot.filled {
  border-style: solid;
  border-color: rgba(255,255,255,0.15);
}

/* ==========================================================================
   MODULE 2: SUBNETTING CALCULATOR (Grade 10)
   ========================================================================== */

.subnet-binary-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
  font-family: var(--font-mono);
}
.subnet-bit {
  width: 100%;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  border-radius: 3px;
  transition: all 0.2s ease;
}
.subnet-bit.network {
  background: rgba(6,182,212,0.15);
  color: #22d3ee;
  border: 1px solid rgba(6,182,212,0.3);
}
.subnet-bit.host {
  background: rgba(139,92,246,0.12);
  color: #a78bfa;
  border: 1px solid rgba(139,92,246,0.25);
}

.subnet-result-card {
  background: rgba(2,6,23,0.7);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 12px 16px;
  transition: all 0.3s ease;
}
.subnet-result-card:hover {
  border-color: rgba(6,182,212,0.25);
  box-shadow: 0 0 12px rgba(6,182,212,0.08);
}

/* ==========================================================================
   MODULE 3: OSI 7 LAYER TOWER (Grade 10)
   ========================================================================== */

.osi-layer-card {
  position: relative;
  padding: 10px 16px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  overflow: hidden;
  border: 1px solid transparent;
}
.osi-layer-card:hover {
  transform: translateX(6px);
  border-color: rgba(255,255,255,0.15);
}
.osi-layer-card .osi-detail {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin 0.3s ease;
  margin-top: 0;
}
.osi-layer-card.expanded .osi-detail {
  max-height: 200px;
  opacity: 1;
  margin-top: 8px;
}

@keyframes osi-packet-down {
  0% { top: 0; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}
@keyframes osi-packet-up {
  0% { bottom: 0; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { bottom: 100%; opacity: 0; }
}

/* ==========================================================================
   MODULE 4: PROXMOX VE DASHBOARD (Grade 11)
   ========================================================================== */

.pve-vm-card {
  background: rgba(2,6,23,0.85);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 14px;
  padding: 14px 18px;
  transition: all 0.3s ease;
  position: relative;
}
.pve-vm-card:hover {
  border-color: rgba(139,92,246,0.3);
  box-shadow: 0 4px 20px rgba(139,92,246,0.08);
}
.pve-vm-card.running {
  border-left: 3px solid #10b981;
}
.pve-vm-card.stopped {
  border-left: 3px solid #64748b;
}

/* CPU/RAM gauge rings */
.pve-gauge {
  position: relative;
  width: 44px;
  height: 44px;
}
.pve-gauge svg {
  transform: rotate(-90deg);
}
.pve-gauge-track {
  fill: none;
  stroke: rgba(255,255,255,0.06);
  stroke-width: 4;
}
.pve-gauge-fill {
  fill: none;
  stroke-width: 4;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s cubic-bezier(0.4,0,0.2,1);
}

@keyframes pve-cpu-pulse {
  0%, 100% { stroke-dashoffset: var(--gauge-target); }
  50% { stroke-dashoffset: calc(var(--gauge-target) - 3); }
}

/* PVE Header bar */
.pve-header {
  background: linear-gradient(135deg, #1a1f3a 0%, #0c1029 100%);
  border: 1px solid rgba(139,92,246,0.15);
  border-radius: 14px;
}

/* ==========================================================================
   MODULE 5: OSPF ROUTING VISUALIZER (Grade 11)
   ========================================================================== */

.ospf-router-node {
  cursor: pointer;
  transition: all 0.3s ease;
}
.ospf-router-node:hover {
  filter: drop-shadow(0 0 12px rgba(6,182,212,0.5));
}

.ospf-link {
  stroke: rgba(255,255,255,0.15);
  stroke-width: 2.5;
  transition: all 0.4s ease;
}
.ospf-link.active {
  stroke: #10b981;
  stroke-width: 3;
  filter: drop-shadow(0 0 4px rgba(16,185,129,0.4));
}
.ospf-link.down {
  stroke: #ef4444;
  stroke-width: 2;
  stroke-dasharray: 6 4;
  opacity: 0.5;
}

@keyframes ospf-hello-pulse {
  0% { r: 4; opacity: 1; }
  100% { r: 25; opacity: 0; }
}

@keyframes ospf-packet-flow {
  0% { offset-distance: 0%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { offset-distance: 100%; opacity: 0; }
}

.ospf-step-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 9px;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
}
.ospf-step-badge.pending {
  background: rgba(255,255,255,0.04);
  color: #475569;
  border: 1px solid rgba(255,255,255,0.05);
}
.ospf-step-badge.active {
  background: rgba(6,182,212,0.12);
  color: #22d3ee;
  border: 1px solid rgba(6,182,212,0.3);
  animation: led-blink-fast 0.8s infinite;
}
.ospf-step-badge.done {
  background: rgba(16,185,129,0.12);
  color: #34d399;
  border: 1px solid rgba(16,185,129,0.3);
}

/* ==========================================================================
   FIBER OPTIC SPECIFIC STYLES
   ========================================================================== */

/* Fiber core glow animation */
@keyframes fiberCorePulse {
  0%, 100% { opacity: 0.6; filter: drop-shadow(0 0 3px #06b6d4); }
  50% { opacity: 1; filter: drop-shadow(0 0 8px #06b6d4); }
}
.fiber-core-active {
  animation: fiberCorePulse 2s infinite ease-in-out;
}

/* OTDR trace scanline */
@keyframes otdrScan {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}
.otdr-scanline::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.08), transparent);
  animation: otdrScan 3s infinite linear;
  pointer-events: none;
}

/* Fusion arc animation */
@keyframes fusionArc {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(1.3); }
}
.fusion-arc-active {
  animation: fusionArc 0.5s infinite ease-in-out;
}

/* Fiber light propagation */
@keyframes lightProp {
  0% { stroke-dashoffset: 200; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { stroke-dashoffset: 0; opacity: 0; }
}
.fiber-light-pulse {
  stroke-dasharray: 10 30;
  animation: lightProp 3s infinite linear;
}

/* Splice machine arc glow */
@keyframes spliceGlow {
  0%, 100% { box-shadow: 0 0 10px rgba(251, 191, 36, 0.3); }
  50% { box-shadow: 0 0 30px rgba(251, 191, 36, 0.6), 0 0 60px rgba(251, 191, 36, 0.2); }
}
.splice-arc-active {
  animation: spliceGlow 0.4s infinite ease-in-out;
}

/* OTDR event marker pulse */
@keyframes eventMarkerPulse {
  0%, 100% { r: 4; opacity: 0.7; }
  50% { r: 6; opacity: 1; }
}
.otdr-event-marker {
  animation: eventMarkerPulse 1.5s infinite ease-in-out;
}

/* Fiber preparation rack drop zone */
.fiber-drop-zone {
  border: 2px dashed rgba(6, 182, 212, 0.2);
  border-radius: 12px;
  transition: all 0.3s ease;
}
.fiber-drop-zone.drag-over {
  border-color: #06b6d4;
  background: rgba(6, 182, 212, 0.05);
  box-shadow: inset 0 0 20px rgba(6, 182, 212, 0.1);
}

/* Cleaver blade cut animation */
@keyframes cleaverCut {
  0% { transform: translateY(-10px); opacity: 0; }
  20% { transform: translateY(0); opacity: 1; }
  80% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(-10px); opacity: 0; }
}
.cleaver-cut-active {
  animation: cleaverCut 0.6s ease-in-out;
}

/* Signal level indicators */
.signal-bar {
  height: 4px;
  border-radius: 2px;
  transition: width 0.5s ease, background 0.5s ease;
}
.signal-bar.excellent { background: #10b981; }
.signal-bar.good { background: #06b6d4; }
.signal-bar.fair { background: #f59e0b; }
.signal-bar.poor { background: #ef4444; }

/* ==========================================================================
   MODULE 6: MIKROTIK ROUTEROS CLI (Grade 11)
   ========================================================================== */

.mikrotik-terminal {
  background: linear-gradient(180deg, #162032 0%, #0e1726 100%);
  border: 1px solid rgba(59,130,246,0.15);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.6), 0 8px 32px rgba(0,0,0,0.4);
}
.mikrotik-terminal .mt-header {
  background: linear-gradient(135deg, #1e3a5f 0%, #162032 100%);
  padding: 10px 16px;
  border-bottom: 1px solid rgba(59,130,246,0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mikrotik-terminal .mt-screen {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #e2e8f0;
  padding: 16px;
  height: 260px;
  overflow-y: auto;
}
.mikrotik-terminal .mt-input-bar {
  background: rgba(14,23,38,0.9);
  padding: 10px 16px;
  border-top: 1px solid rgba(59,130,246,0.1);
  display: flex;
  align-items: center;
  gap: 8px;
}

.mt-autocomplete {
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  background: #1e293b;
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 8px 8px 0 0;
  max-height: 120px;
  overflow-y: auto;
  z-index: 10;
  display: none;
}
.mt-autocomplete.visible {
  display: block;
}
.mt-autocomplete-item {
  padding: 6px 12px;
  font-size: 10px;
  font-family: var(--font-mono);
  color: #94a3b8;
  cursor: pointer;
  transition: all 0.15s ease;
}
.mt-autocomplete-item:hover {
  background: rgba(59,130,246,0.1);
  color: #60a5fa;
}

/* MikroTik breadcrumb path */
.mt-breadcrumb {
  font-family: var(--font-mono);
  font-size: 9px;
  color: #64748b;
  display: flex;
  align-items: center;
  gap: 4px;
}
.mt-breadcrumb span {
  color: #3b82f6;
  font-weight: 700;
}

/* ==========================================================================
   PREMIUM LIGHT MODE ENHANCEMENTS
   ========================================================================== */

[data-theme="light"] {
  /* Enhanced light mode with warmer, more comfortable tones */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  
  --glow-cyan: rgba(6, 182, 212, 0.15);
  --glow-violet: rgba(139, 92, 246, 0.15);
  --glow-emerald: rgba(16, 185, 129, 0.15);
  --glow-rose: rgba(244, 63, 94, 0.15);
  
  --neon-cyan: #0891b2;
  --neon-violet: #7c3aed;
  --neon-emerald: #059669;
  --neon-rose: #e11d48;
  
  --border-glass: rgba(15, 23, 42, 0.08);
  --bg-glass: rgba(255, 255, 255, 0.88);
  
  /* Enhanced light mode shadows */
  --shadow-soft: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-medium: 0 4px 6px rgba(15, 23, 42, 0.05), 0 2px 4px rgba(15, 23, 42, 0.03);
  --shadow-strong: 0 10px 25px rgba(15, 23, 42, 0.08), 0 4px 10px rgba(15, 23, 42, 0.04);
  --shadow-dropdown: 0 20px 60px rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .glass {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: var(--shadow-medium);
}

[data-theme="light"] .glass-premium {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.9) 100%);
  border: 1px solid rgba(15, 23, 42, 0.1);
  box-shadow: var(--shadow-strong);
}

[data-theme="light"] header.glass {
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .neon-border-cyan {
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.12);
}

[data-theme="light"] .neon-border-violet {
  box-shadow: 0 0 8px rgba(139, 92, 246, 0.12);
}

[data-theme="light"] .neon-border-emerald {
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.12);
}

[data-theme="light"] .cyber-grid {
  background-image: 
    linear-gradient(to right, rgba(6, 182, 212, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(6, 182, 212, 0.06) 1px, transparent 1px);
  mask-image: radial-gradient(ellipse at 50% 50%, black 50%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 50%, transparent 100%);
}

[data-theme="light"] .btn-cyber-cyan {
  color: #ffffff !important;
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.2);
}

[data-theme="light"] .bg-slate-950\/95 {
  background-color: rgba(255, 255, 255, 0.95) !important;
}

[data-theme="light"] .bg-slate-950\/80 {
  background-color: rgba(248, 250, 252, 0.9) !important;
}

[data-theme="light"] .bg-slate-950 {
  background-color: #f8fafc !important;
}

[data-theme="light"] .bg-slate-950\/90 {
  background-color: rgba(248, 250, 252, 0.95) !important;
}

[data-theme="light"] header {
  background: rgba(255, 255, 255, 0.92) !important;
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

/* =============================================
   HEADER TEXT COLORS - LIGHT MODE
   ============================================= */

/* Default header text becomes dark (on light bg) */
[data-theme="light"] header .text-slate-100,
[data-theme="light"] header .text-slate-200,
[data-theme="light"] header .text-slate-300 {
  color: #1e293b;
}

[data-theme="light"] header .text-slate-400 {
  color: #475569;
}

[data-theme="light"] header .text-slate-500 {
  color: #64748b;
}

[data-theme="light"] header .text-slate-600 {
  color: #94a3b8;
}

[data-theme="light"] header .text-slate-900 {
  color: #0f172a;
}

[data-theme="light"] .text-slate-950 {
  color: #020617;
}

/* Header nav link icons - fully saturated for light bg */
[data-theme="light"] header .text-cyan-500\/70 {
  color: #0891b2;
}

[data-theme="light"] header .text-violet-500\/70 {
  color: #7c3aed;
}

[data-theme="light"] header .text-amber-500\/70 {
  color: #d97706;
}

[data-theme="light"] header .text-emerald-500\/70 {
  color: #059669;
}

[data-theme="light"] header .text-purple-500\/70 {
  color: #7c3aed;
}

/* Header tool buttons (search, theme, reading mode) */
[data-theme="light"] header .text-slate-300.hover\:text-cyan-400,
[data-theme="light"] header button i.fa-solid {
  color: #475569;
}

/* =============================================
   DROPDOWN INSIDE HEADER - RESTORE DARK MODE STYLING
   ============================================= */

/* Dropdown containers keep dark bg — reset all text back to light */
[data-theme="light"] header [class*="bg-slate-950"].text-slate-100,
[data-theme="light"] header [class*="bg-slate-950"] .text-slate-100,
[data-theme="light"] header [class*="bg-slate-950"] .text-slate-200,
[data-theme="light"] header [class*="bg-slate-950"] .text-slate-300 {
  color: #cbd5e1 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-slate-400,
[data-theme="light"] header [class*="bg-slate-950"] .text-slate-500 {
  color: #94a3b8 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-slate-600 {
  color: #64748b !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-cyan-400\/70 {
  color: #22d3ee !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-emerald-300 {
  color: #6ee7b7 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-emerald-400 {
  color: #34d399 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-cyan-500\/60 {
  color: rgba(6, 182, 212, 0.6) !important;
}

/* Dropdown section labels */
[data-theme="light"] header [class*="bg-slate-950"] .text-violet-400 {
  color: #a78bfa !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-amber-400 {
  color: #fbbf24 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-emerald-400 {
  color: #34d399 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-orange-400 {
  color: #fb923c !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-yellow-400 {
  color: #facc15 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-rose-400 {
  color: #fb7185 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-cyan-400 {
  color: #22d3ee !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-purple-400 {
  color: #c084fc !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-violet-500\/70 {
  color: #8b5cf6 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-amber-500\/70 {
  color: #f59e0b !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-cyan-500\/70 {
  color: #06b6d4 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-emerald-500\/70 {
  color: #10b981 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-purple-500\/70 {
  color: #a855f7 !important;
}

/* Dropdown title text */
[data-theme="light"] header [class*="bg-slate-950"] .text-slate-200 {
  color: #e2e8f0 !important;
}

/* Dropdown badges (Utama, Root, Explore) */
[data-theme="light"] header [class*="bg-slate-950"] .text-violet-400 {
  color: #a78bfa !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-amber-400 {
  color: #fbbf24 !important;
}

[data-theme="light"] header [class*="bg-slate-950"] .text-emerald-400 {
  color: #34d399 !important;
}

/* Mobile menu - keep dark bg styling */
[data-theme="light"] #mobileMenu {
  background: rgba(15, 23, 42, 0.98) !important;
}

[data-theme="light"] #mobileMenu .text-slate-300,
[data-theme="light"] #mobileMenu .text-slate-400 {
  color: #94a3b8 !important;
}

[data-theme="light"] #mobileMenu .text-cyan-500 {
  color: #22d3ee !important;
}

[data-theme="light"] #mobileMenu .text-amber-500 {
  color: #f59e0b !important;
}

[data-theme="light"] #mobileMenu .text-emerald-500 {
  color: #10b981 !important;
}

[data-theme="light"] #mobileMenu .text-violet-500 {
  color: #8b5cf6 !important;
}

[data-theme="light"] #mobileMenu .text-purple-500 {
  color: #a855f7 !important;
}

/* =============================================
   HEADER BORDERS & BACKGROUNDS - LIGHT MODE
   ============================================= */

[data-theme="light"] header .bg-slate-950\/95 {
  background: rgba(255, 255, 255, 0.98) !important;
  border: 1px solid rgba(15, 23, 42, 0.1);
  box-shadow: var(--shadow-dropdown);
}

[data-theme="light"] header .border-white\/10 {
  border-color: rgba(15, 23, 42, 0.08);
}

[data-theme="light"] header .border-white\/5 {
  border-color: rgba(15, 23, 42, 0.05);
}

[data-theme="light"] header .hover\:bg-white\/\[0\.04\]:hover {
  background-color: rgba(6, 182, 212, 0.06);
}

[data-theme="light"] header .bg-white\/\[0\.04\] {
  background-color: rgba(6, 182, 212, 0.04);
}



[data-theme="light"] .bg-\[\#020512\] {
  background-color: #f8fafc !important;
}

[data-theme="light"] footer {
  border-top: 1px solid rgba(15, 23, 42, 0.06);
}

[data-theme="light"] footer .text-slate-100,
[data-theme="light"] footer .text-slate-200,
[data-theme="light"] footer .text-slate-300 {
  color: #1e293b;
}

[data-theme="light"] footer .text-slate-400 {
  color: #475569;
}

[data-theme="light"] footer .text-slate-500 {
  color: #64748b;
}

[data-theme="light"] footer .text-slate-600 {
  color: #94a3b8;
}

[data-theme="light"] footer .border-white\/5 {
  border-color: rgba(15, 23, 42, 0.06);
}

[data-theme="light"] footer .bg-slate-950\/80 {
  background: rgba(248, 250, 252, 0.9) !important;
  border: 1px solid rgba(15, 23, 42, 0.06);
}

[data-theme="light"] footer .bg-slate-900\/40 {
  background: rgba(241, 245, 249, 0.6);
}

/* Light mode: footer social media link colors */
[data-theme="light"] footer .text-blue-400 {
  color: #2563eb;
}

[data-theme="light"] footer .text-pink-400 {
  color: #db2777;
}

[data-theme="light"] footer .text-red-400 {
  color: #dc2626;
}

/* Light mode: announcement popup */
[data-theme="light"] #announcementPopup .bg-slate-950\/90 {
  background: rgba(255, 255, 255, 0.95) !important;
}

[data-theme="light"] #announcementPopup .text-slate-100,
[data-theme="light"] #announcementPopup .text-slate-200,
[data-theme="light"] #announcementPopup .text-slate-300 {
  color: #1e293b;
}

[data-theme="light"] #announcementPopup .text-slate-400 {
  color: #475569;
}

[data-theme="light"] #announcementPopup .text-slate-500 {
  color: #64748b;
}

/* Light mode: PWA toast */
[data-theme="light"] #pwaInstallToast .text-slate-400 {
  color: #475569;
}

[data-theme="light"] .hologram-grid {
  opacity: 0.03;
}

[data-theme="light"] .scanline-container::after {
  opacity: 0.15;
}

[data-theme="light"] .ospf-step-badge.pending {
  background: rgba(15, 23, 42, 0.04);
  color: #94a3b8;
  border: 1px solid rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .subnet-result-card {
  background: rgba(248, 250, 252, 0.9);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .pve-vm-card {
  background: rgba(255, 255, 255, 0.9);
}

[data-theme="light"] .mikrotik-terminal {
  background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
  border: 1px solid rgba(15, 23, 42, 0.1);
}

[data-theme="light"] .mikrotik-terminal .mt-header {
  background: linear-gradient(135deg, #cbd5e1 0%, #e2e8f0 100%);
}

[data-theme="light"] .mikrotik-terminal .mt-screen {
  color: #1e293b;
}

[data-theme="light"] .mikrotik-terminal .mt-input-bar {
  background: rgba(226, 232, 240, 0.9);
}

[data-theme="light"] #searchOverlay .bg-slate-950\/90 {
  background: rgba(255, 255, 255, 0.95) !important;
}

[data-theme="light"] #searchOverlay input {
  background: #ffffff !important;
  border-color: rgba(15, 23, 42, 0.12);
  color: #0f172a;
}

[data-theme="light"] #searchOverlay .text-slate-600 {
  color: #94a3b8;
}

[data-theme="light"] #pwaInstallToast h4 {
  color: #0f172a;
}

/* Premium card hover effects for light mode */
[data-theme="light"] .cyber-corners::before,
[data-theme="light"] .cyber-corners::after {
  border-color: rgba(6, 182, 212, 0.3);
}

[data-theme="light"] .cyber-corners:hover::before,
[data-theme="light"] .cyber-corners:hover::after {
  border-color: #0891b2;
}

/* Improved selection colors for light mode */
[data-theme="light"] ::selection {
  background: rgba(6, 182, 212, 0.2);
  color: #0891b2;
}

/* ==========================================================================
   PREMIUM READING MODE
   ========================================================================== */

/* Reading mode variables */
:root {
  --reading-font-size: 16px;
  --reading-line-height: 1.8;
  --reading-max-width: 720px;
  --reading-letter-spacing: 0.02em;
  --reading-word-spacing: 0.05em;
  --reading-paragraph-margin: 1.5em;
}

[data-theme="reading"] {
  --bg-primary: #faf6f1;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f5f0eb;
  --text-primary: #2c2c2c;
  --text-secondary: #5a5a5a;
  --border-glass: rgba(0, 0, 0, 0.06);
  --bg-glass: rgba(255, 255, 255, 0.92);
  --glow-cyan: rgba(6, 182, 212, 0.08);
  --neon-cyan: #0369a1;
  --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.04);
}

/* Reading mode body styles */
[data-theme="reading"] body,
[data-theme="reading"] p,
[data-theme="reading"] li,
[data-theme="reading"] .content-text {
  font-size: var(--reading-font-size);
  line-height: var(--reading-line-height);
  letter-spacing: var(--reading-letter-spacing);
  word-spacing: var(--reading-word-spacing);
}

[data-theme="reading"] p {
  margin-bottom: var(--reading-paragraph-margin);
}

[data-theme="reading"] main {
  max-width: var(--reading-max-width);
  margin-left: auto;
  margin-right: auto;
}

/* Reading mode - softer visual elements */
[data-theme="reading"] .cyber-grid {
  opacity: 0.15;
}

[data-theme="reading"] .cyber-pulse-glow {
  opacity: 0.3;
}

[data-theme="reading"] .scanline-container::after {
  opacity: 0.08;
}

[data-theme="reading"] .hologram-grid {
  opacity: 0.02;
}

[data-theme="reading"] .glass {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.04);
}

[data-theme="reading"] header {
  background: rgba(250, 246, 241, 0.95) !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

[data-theme="reading"] header .bg-slate-950\/95 {
  background: rgba(255, 255, 255, 0.98) !important;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="reading"] footer {
  background: #f5f0eb !important;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
}

[data-theme="reading"] .text-neon-cyan,
[data-theme="reading"] .text-neon-violet,
[data-theme="reading"] .text-neon-emerald {
  text-shadow: none;
}

/* =============================================
   READING MODE - HEADER TEXT COLORS
   ============================================= */

[data-theme="reading"] header .text-slate-100,
[data-theme="reading"] header .text-slate-200,
[data-theme="reading"] header .text-slate-300 {
  color: #2c2c2c;
}

[data-theme="reading"] header .text-slate-400 {
  color: #5a5a5a;
}

[data-theme="reading"] header .text-slate-500 {
  color: #6b7280;
}

[data-theme="reading"] header .text-slate-600 {
  color: #9ca3af;
}

[data-theme="reading"] header .text-slate-900 {
  color: #1f2937;
}

/* Reading mode header icons */
[data-theme="reading"] header .text-cyan-500\/70 {
  color: #0369a1;
}

[data-theme="reading"] header .text-violet-500\/70 {
  color: #6d28d9;
}

[data-theme="reading"] header .text-amber-500\/70 {
  color: #b45309;
}

[data-theme="reading"] header .text-emerald-500\/70 {
  color: #047857;
}

[data-theme="reading"] header .text-purple-500\/70 {
  color: #6d28d9;
}

/* Reading mode: restore dropdown dark bg text colors */
[data-theme="reading"] header [class*="bg-slate-950"] .text-slate-100,
[data-theme="reading"] header [class*="bg-slate-950"] .text-slate-200,
[data-theme="reading"] header [class*="bg-slate-950"] .text-slate-300 {
  color: #cbd5e1 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-slate-400,
[data-theme="reading"] header [class*="bg-slate-950"] .text-slate-500 {
  color: #94a3b8 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-slate-600 {
  color: #64748b !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-slate-200 {
  color: #e2e8f0 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-cyan-400\/70,
[data-theme="reading"] header [class*="bg-slate-950"] .text-cyan-400 {
  color: #22d3ee !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-emerald-300 {
  color: #6ee7b7 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-emerald-400 {
  color: #34d399 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-cyan-500\/60 {
  color: rgba(6, 182, 212, 0.6) !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-violet-400 {
  color: #a78bfa !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-amber-400 {
  color: #fbbf24 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-orange-400 {
  color: #fb923c !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-yellow-400 {
  color: #facc15 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-rose-400 {
  color: #fb7185 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-purple-400 {
  color: #c084fc !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-violet-500\/70 {
  color: #8b5cf6 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-amber-500\/70 {
  color: #f59e0b !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-cyan-500\/70 {
  color: #06b6d4 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-emerald-500\/70 {
  color: #10b981 !important;
}

[data-theme="reading"] header [class*="bg-slate-950"] .text-purple-500\/70 {
  color: #a855f7 !important;
}

/* Reading mode: keep mobile menu dark */
[data-theme="reading"] #mobileMenu {
  background: rgba(15, 23, 42, 0.98) !important;
}

[data-theme="reading"] #mobileMenu .text-slate-300,
[data-theme="reading"] #mobileMenu .text-slate-400 {
  color: #94a3b8 !important;
}

[data-theme="reading"] #mobileMenu .text-cyan-500 {
  color: #22d3ee !important;
}

[data-theme="reading"] #mobileMenu .text-amber-500 {
  color: #f59e0b !important;
}

[data-theme="reading"] #mobileMenu .text-emerald-500 {
  color: #10b981 !important;
}

[data-theme="reading"] #mobileMenu .text-violet-500 {
  color: #8b5cf6 !important;
}

[data-theme="reading"] #mobileMenu .text-purple-500 {
  color: #a855f7 !important;
}

/* =============================================
   READING MODE - FOOTER TEXT COLORS
   ============================================= */

[data-theme="reading"] footer .text-slate-100,
[data-theme="reading"] footer .text-slate-200,
[data-theme="reading"] footer .text-slate-300 {
  color: #1f2937;
}

[data-theme="reading"] footer .text-slate-400 {
  color: #5a5a5a;
}

[data-theme="reading"] footer .text-slate-500 {
  color: #6b7280;
}

[data-theme="reading"] footer .text-slate-600 {
  color: #9ca3af;
}

/* Reading mode: footer social ports keep original colors */
[data-theme="reading"] footer .text-blue-400 {
  color: #3b82f6;
}

[data-theme="reading"] footer .text-pink-400 {
  color: #ec4899;
}

[data-theme="reading"] footer .text-red-400 {
  color: #f87171;
}

/* Reading mode: footer backgrounds */
[data-theme="reading"] footer .bg-slate-950\/80 {
  background: rgba(245, 240, 235, 0.9) !important;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

[data-theme="reading"] footer .bg-slate-900\/40 {
  background: rgba(235, 230, 225, 0.6);
}

[data-theme="reading"] footer .border-white\/5 {
  border-color: rgba(0, 0, 0, 0.04);
}

/* Reading mode: announcement popup */
[data-theme="reading"] #announcementPopup .bg-slate-950\/90 {
  background: rgba(245, 240, 235, 0.95) !important;
}

[data-theme="reading"] #announcementPopup .text-slate-100,
[data-theme="reading"] #announcementPopup .text-slate-200,
[data-theme="reading"] #announcementPopup .text-slate-300 {
  color: #1f2937;
}

[data-theme="reading"] #announcementPopup .text-slate-400 {
  color: #5a5a5a;
}

[data-theme="reading"] #announcementPopup .text-slate-500 {
  color: #6b7280;
}

/* Reading mode: search overlay */
[data-theme="reading"] #searchOverlay .bg-slate-950\/90 {
  background: rgba(245, 240, 235, 0.95) !important;
}

[data-theme="reading"] #searchOverlay input {
  background: #ffffff !important;
  border-color: rgba(0, 0, 0, 0.08);
  color: #1f2937;
}

[data-theme="reading"] #searchOverlay .text-slate-600 {
  color: #9ca3af;
}

/* Reading mode: PWA toast */
[data-theme="reading"] #pwaInstallToast h4 {
  color: #1f2937;
}

[data-theme="reading"] #pwaInstallToast .text-slate-400 {
  color: #5a5a5a;
}

/* Reading mode toggle button styling */
#readingModeBtn.active {
  color: #d97706 !important;
  background: rgba(217, 119, 6, 0.1) !important;
}

[data-theme="reading"] #readingModeBtn {
  color: #d97706 !important;
  background: rgba(217, 119, 6, 0.12) !important;
}

/* Smooth theme transitions for key structural elements */
html,
body,
header,
footer,
.glass,
.glass-premium,
.cyber-grid,
.hologram-grid,
.scanline-container::after,
#page-wrapper {
  transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.4s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   MOBILE RESPONSIVE OVERRIDES
   ========================================================================== */

@media (max-width: 767px) {
  section > .max-w-7xl,
  footer > .max-w-7xl,
  footer > div > .max-w-7xl {
    overflow: hidden;
  }

  #slider-act {
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  #kegiatan-section .max-w-4xl {
    overflow: hidden;
  }

  #cyber-preloader > div {
    max-width: 90vw !important;
    padding-left: 12px !important;
    padding-right: 12px !important;
  }

  #hero-section h1 {
    font-size: 2rem !important;
    line-height: 1.1 !important;
  }
}

@media (max-width: 480px) {
  #hero-section h1 {
    font-size: 1.6rem !important;
  }
}

@media (max-width: 374px) {
  .sim-leaderboard-row .hidden-xs {
    display: none !important;
  }
}

/* Leaderboard responsive table enhancements */
.leaderboard-table-wrap {
  -webkit-overflow-scrolling: touch;
}

.leaderboard-table-wrap table {
  border-collapse: separate;
  border-spacing: 0;
}

.leaderboard-table-wrap thead th {
  position: sticky;
  top: 0;
  z-index: 10;
}

/* Smooth scrollbar for leaderboard table */
.leaderboard-table-wrap::-webkit-scrollbar {
  height: 4px;
  width: 4px;
}

.leaderboard-table-wrap::-webkit-scrollbar-track {
  background: transparent;
}

.leaderboard-table-wrap::-webkit-scrollbar-thumb {
  background: rgba(139, 92, 246, 0.3);
  border-radius: 99px;
}

.leaderboard-table-wrap::-webkit-scrollbar-thumb:hover {
  background: rgba(139, 92, 246, 0.5);
}