/* ==========================================================================
   Portfolio Styles - Martynas Šaka
   ========================================================================== */

/* ==========================================================================
   CSS Variables
   ========================================================================== */
:root {
  /* Neon Colors */
  --neon-green: #22c55e;
  --neon-blue: #3b82f6;
  --neon-purple: #a855f7;
  --neon-cyan: #06b6d4;
  --neon-gold: #fbbf24;
  --neon-amber: #f59e0b;
  
  /* Base Colors */
  --base-950: #030712;
  --base-900: #0a0f1a;
  --base-800: #111827;
  --base-700: #1f2937;
  --base-600: #374151;
  --base-500: #4b5563;
  --base-400: #6b7280;
  --base-300: #9ca3af;
  --base-200: #d1d5db;
  --base-100: #f3f4f6;
  
  /* Easing */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Lenis Smooth Scroll
   ========================================================================== */
html.lenis,
html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-stopped {
  overflow: hidden;
}

/* ==========================================================================
   Scrollbar
   ========================================================================== */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--neon-green) transparent;
}

*::-webkit-scrollbar {
  width: 6px;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: var(--neon-green);
  border-radius: 3px;
}

/* ==========================================================================
   Selection
   ========================================================================== */
::selection {
  background: rgba(34, 197, 94, 0.3);
  color: white;
}

/* ==========================================================================
   RPG Icons
   ========================================================================== */
.rpg-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5em;
  height: 1.5em;
}

.rpg-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.rpg-icon-glow {
  filter: drop-shadow(0 0 4px currentColor);
}

/* ==========================================================================
   Page Loader
   ========================================================================== */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--base-950);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  transition: opacity 0.8s var(--ease-out-expo), visibility 0.8s;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-logo {
  font-family: 'Cinzel', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--neon-green);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.loader-bar-container {
  width: 280px;
  text-align: center;
}

.loader-bar {
  width: 100%;
  height: 4px;
  background: var(--base-800);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.loader-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan));
  border-radius: 2px;
  animation: loadingBar 2s ease-out forwards;
}

@keyframes loadingBar {
  0% { width: 0%; }
  50% { width: 70%; }
  100% { width: 100%; }
}

.loader-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--neon-green);
  letter-spacing: 0.1em;
}

/* ==========================================================================
   Scroll Progress
   ========================================================================== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan), var(--neon-blue));
  z-index: 9999;
}

/* ==========================================================================
   Custom Cursor
   ========================================================================== */
.custom-cursor-active {
  cursor: none !important;
}

.custom-cursor-active * {
  cursor: none !important;
}

.custom-cursor {
  position: fixed;
  width: 8px;
  height: 8px;
  background: var(--neon-green);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  mix-blend-mode: difference;
}

.cursor-follower {
  position: fixed;
  width: 40px;
  height: 40px;
  border: 1px solid var(--neon-green);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9997;
  transform: translate(-50%, -50%);
  opacity: 0.5;
}

.cursor-hover .custom-cursor {
  transform: translate(-50%, -50%) scale(2);
  background: var(--neon-cyan);
}

.cursor-hover .cursor-follower {
  width: 60px;
  height: 60px;
  border-color: var(--neon-cyan);
  opacity: 0.3;
}

@media (max-width: 1024px), (hover: none) {
  .custom-cursor,
  .cursor-follower {
    display: none !important;
  }
}

/* ==========================================================================
   Background Effects
   ========================================================================== */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: 
    linear-gradient(rgba(34, 197, 94, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 197, 94, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.bg-gradient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(34, 197, 94, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
    radial-gradient(ellipse at 40% 80%, rgba(168, 85, 247, 0.08) 0%, transparent 40%);
}

.particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--neon-green);
  border-radius: 50%;
  opacity: 0.4;
  animation: float 15s infinite ease-in-out;
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; top: 60%; animation-delay: 2s; background: var(--neon-blue); }
.particle:nth-child(3) { left: 35%; top: 40%; animation-delay: 4s; background: var(--neon-purple); }
.particle:nth-child(4) { left: 50%; top: 80%; animation-delay: 1s; }
.particle:nth-child(5) { left: 65%; top: 30%; animation-delay: 3s; background: var(--neon-cyan); }
.particle:nth-child(6) { left: 80%; top: 70%; animation-delay: 5s; background: var(--neon-amber); }

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, -30px); }
}

/* ==========================================================================
   Glass Card
   ========================================================================== */
.glass-card {
  background: rgba(17, 24, 39, 0.8);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

@media (max-width: 768px) {
  .glass-card {
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: none;
  }
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem;
  transition: transform 0.4s var(--ease-out-expo);
}

.nav-container.nav-hidden {
  transform: translateY(-100%);
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(10, 15, 26, 0.6);
  backdrop-filter: blur(10px);
}

.nav-container.nav-scrolled .nav-inner {
  background: rgba(3, 7, 18, 0.95);
  border-color: rgba(255, 255, 255, 0.08);
}

.nav-link {
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  color: var(--base-300);
  transition: all 0.3s ease;
  border-radius: 0.5rem;
}

.nav-link:hover {
  color: white;
  background: rgba(255, 255, 255, 0.05);
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--base-300);
  transition: all 0.3s ease;
  cursor: pointer;
}

.icon-btn:hover {
  background: rgba(34, 197, 94, 0.1);
  border-color: var(--neon-green);
  color: var(--neon-green);
}

/* ==========================================================================
   Text Reveal Animation
   ========================================================================== */
.text-reveal {
  overflow: hidden;
  display: block;
}

.text-reveal-inner {
  display: block;
  transform: translateY(110%);
  transition: transform 0.8s var(--ease-out-expo);
}

.text-reveal.revealed .text-reveal-inner {
  transform: translateY(0);
}

.text-reveal.delay-1 .text-reveal-inner { transition-delay: 0.1s; }
.text-reveal.delay-2 .text-reveal-inner { transition-delay: 0.2s; }
.text-reveal.delay-3 .text-reveal-inner { transition-delay: 0.3s; }
.text-reveal.delay-4 .text-reveal-inner { transition-delay: 0.4s; }

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-title {
  background: linear-gradient(135deg, #ffffff 0%, var(--neon-green) 50%, var(--neon-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.typing-cursor {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.scroll-indicator {
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(10px); }
}

/* ==========================================================================
   Node Cards (Journey)
   ========================================================================== */
.node-card {
  position: relative;
  background: linear-gradient(135deg, rgba(10, 15, 26, 0.95) 0%, rgba(17, 24, 39, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  overflow: hidden;
  transition: all 0.4s ease;
}

.node-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--node-color, var(--neon-green)), transparent);
}

.node-card:hover {
  border-color: var(--node-color, var(--neon-green));
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 30px -5px var(--node-color, var(--neon-green));
}

.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--node-color, var(--neon-green));
  border-radius: 2rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--node-color, var(--neon-green));
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.quest-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 0.5rem;
  padding: 0.875rem;
}

.status-live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  background: var(--neon-amber);
  color: var(--base-950);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 0.25rem;
  text-transform: uppercase;
  margin-left: 1rem;
}

.status-live::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--base-950);
  border-radius: 50%;
  animation: pulse 1s ease-in-out infinite;
}

/* Header row for chapter with badge alignment */
.chapter-header-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ==========================================================================
   XP Bar
   ========================================================================== */
.xp-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
}

.xp-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--node-color, var(--neon-green)), var(--neon-cyan));
  border-radius: 3px;
  position: relative;
}

.xp-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ==========================================================================
   Skill Tree - Hierarchical with Categories
   ========================================================================== */
.skill-tree-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 0;
}

/* Root node */
.tree-root {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
  position: relative;
}

.tree-root::after {
  content: '';
  position: absolute;
  bottom: -2rem;
  left: 50%;
  width: 2px;
  height: 2rem;
  background: linear-gradient(180deg, var(--neon-green), rgba(34, 197, 94, 0.3));
}

.root-node {
  width: 120px;
  height: 120px;
  background: rgba(17, 24, 39, 0.95);
  border: 3px solid var(--neon-green);
  border-radius: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 0 40px rgba(34, 197, 94, 0.4);
  position: relative;
  z-index: 10;
  text-align: center;
}

.root-node-icon {
  font-size: 2.5rem;
}

.root-node-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--neon-green);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  text-align: center;
  line-height: 1.3;
}

/* Categories row - all 5 in one line */
.tree-categories {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  position: relative;
}

/* Horizontal line connecting categories */
.tree-categories::before {
  content: '';
  position: absolute;
  top: 0;
  left: 5%;
  right: 5%;
  height: 2px;
  background: rgba(34, 197, 94, 0.4);
}

/* Category branch */
.category-branch {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

/* Vertical line from horizontal to category */
.category-branch::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 2px;
  height: 1.5rem;
  background: rgba(34, 197, 94, 0.4);
}

/* Category node */
.category-node {
  width: 100%;
  max-width: 140px;
  padding: 0.6rem 0.75rem;
  background: rgba(17, 24, 39, 0.95);
  border: 2px solid var(--category-color, rgba(34, 197, 94, 0.5));
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 1.5rem;
  position: relative;
  z-index: 5;
}

.category-node:hover {
  border-color: var(--category-color, var(--neon-green));
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 20px color-mix(in srgb, var(--category-color, var(--neon-green)) 30%, transparent);
}

.category-icon {
  font-size: 1.1rem;
}

.category-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  color: var(--category-color, var(--neon-green));
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-weight: 600;
  line-height: 1.3;
}

/* Tools container - no line going through */
.category-tools {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
  position: relative;
  padding-top: 0.5rem;
}

/* Tool node */
.tool-node {
  padding: 0.35rem 0.6rem;
  background: rgba(17, 24, 39, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 0.4rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  z-index: 2;
  font-size: 0.7rem;
}

/* Connector line between tools */
.tool-node::before {
  content: '';
  position: absolute;
  top: -0.5rem;
  left: 50%;
  width: 2px;
  height: 0.5rem;
  background: var(--category-color, rgba(34, 197, 94, 0.3));
}

.tool-node:first-child::before {
  height: 0.75rem;
  top: -0.75rem;
}

.tool-node:hover {
  border-color: var(--category-color, var(--neon-green));
  background: rgba(34, 197, 94, 0.15);
  transform: scale(1.05);
}

.tool-node-icon {
  font-size: 0.85rem;
}

.tool-node-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  color: var(--base-200);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.tool-node:hover .tool-node-label {
  color: var(--category-color, var(--neon-green));
}

/* Category colors */
.category-branch[data-category="sql"] { --category-color: #06b6d4; }
.category-branch[data-category="bi"] { --category-color: #a855f7; }
.category-branch[data-category="etl"] { --category-color: #22c55e; }
.category-branch[data-category="devops"] { --category-color: #f59e0b; }
.category-branch[data-category="domain"] { --category-color: #3b82f6; }

/* Responsive */
@media (max-width: 1024px) {
  .tree-categories {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem 1rem;
  }
  .tree-categories::before {
    display: none;
  }
  .category-branch::before {
    display: none;
  }
  .category-node {
    margin-top: 0;
  }
}

@media (max-width: 640px) {
  .tree-categories {
    grid-template-columns: repeat(2, 1fr);
  }
  .category-tools {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.4rem;
  }
  .tool-node::before {
    display: none;
  }
  .root-node {
    width: 90px;
    height: 90px;
  }
  .root-node-icon {
    font-size: 1.8rem;
  }
  .root-node-label {
    font-size: 0.6rem;
  }
}

/* ==========================================================================
   Pipeline Game - Single Unified Pipe
   ========================================================================== */
.pipeline-game-box {
  background: var(--base-900);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 1rem;
  padding: 2rem;
}

.pipeline-visual-container {
  position: relative;
  height: 140px;
  margin: 2rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 1rem;
}

/* Single unified pipe */
.pipe {
  position: relative;
  width: 100%;
  max-width: 400px;
  height: 28px;
  background: linear-gradient(180deg, #5b6573, #3d4451, #5b6573);
  border-radius: 14px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.3);
}

/* Flow fills entire pipe - width based animation */
.pipe-flow {
  position: absolute;
  top: 4px;
  left: 4px;
  height: 20px;
  width: 0;
  background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan));
  border-radius: 10px;
  box-shadow: 0 0 15px var(--neon-green);
  transition: width 0.8s ease-out 0.2s;
}

.pipe.fixed .pipe-flow {
  width: calc(100% - 8px);
}

/* Break overlay - hides middle of pipe */
.break-overlay {
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 70px;
  height: 38px;
  background: var(--base-900);
  z-index: 5;
  transition: opacity 0.3s ease;
}

.pipe.fixed .break-overlay {
  opacity: 0;
}

/* Break indicator - positioned in container */
.break-indicator {
  position: absolute;
  top: calc(1rem + 14px);
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: var(--base-900);
  border: 3px solid #ef4444;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: 10;
  transition: all 0.4s ease;
  box-shadow: 0 0 25px rgba(239, 68, 68, 0.6);
}

.break-indicator.fixing {
  border-color: var(--neon-green);
  box-shadow: 0 0 30px rgba(34, 197, 94, 0.7);
  background: rgba(34, 197, 94, 0.2);
}

.break-indicator.hidden {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
}

/* Water drops - below the pipe */
.water-drops {
  position: absolute;
  top: calc(1rem + 28px + 8px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 5;
  transition: opacity 0.3s ease;
}

.water-drop {
  width: 10px;
  height: 16px;
  background: linear-gradient(180deg, var(--neon-cyan), var(--neon-blue));
  border-radius: 50% 50% 50% 50% / 30% 30% 70% 70%;
  animation: drip 0.8s ease-in infinite;
  opacity: 0.9;
}

.water-drop:nth-child(2) { animation-delay: 0.3s; }
.water-drop:nth-child(3) { animation-delay: 0.6s; }

@keyframes drip {
  0% { transform: translateY(0); opacity: 0.9; }
  100% { transform: translateY(35px); opacity: 0; }
}

.water-drops.hidden {
  opacity: 0;
  pointer-events: none;
}

.water-drops.hidden .water-drop {
  animation: none;
}

/* Fix button centered below */
.fix-btn-container {
  display: flex;
  justify-content: center;
  width: 100%;
  margin-top: 2.5rem;
}

.fix-pipeline-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  background: rgba(239, 68, 68, 0.15);
  border: 2px solid #ef4444;
  color: #ef4444;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.fix-pipeline-btn:hover:not(.hidden) {
  background: rgba(239, 68, 68, 0.25);
  transform: scale(1.05);
}

.fix-pipeline-btn.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.8);
}

/* ==========================================================================
   Contact Form
   ========================================================================== */
.contact-form-locked {
  opacity: 0.4;
  pointer-events: none;
  filter: blur(1px);
  transition: all 0.5s ease;
}

.contact-form-locked.unlocked {
  opacity: 1;
  pointer-events: auto;
  filter: none;
}

.contact-input {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--base-800);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  color: white;
  font-family: 'Space Grotesk', sans-serif;
  transition: border-color 0.3s ease;
}

.contact-input:focus {
  outline: none;
  border-color: var(--neon-green);
}

.contact-textarea {
  min-height: 100px;
  resize: vertical;
}

.contact-card {
  background: linear-gradient(135deg, rgba(10, 15, 26, 0.95) 0%, rgba(17, 24, 39, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  transition: all 0.4s ease;
}

.contact-card:hover {
  border-color: var(--neon-green);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
}

/* Contact card icon container - fixed size */
.contact-icon-box {
  width: 56px;
  height: 56px;
  min-width: 56px;
  min-height: 56px;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.3s ease;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  background: linear-gradient(135deg, var(--neon-green) 0%, #16a34a 100%);
  color: white;
  font-weight: 600;
  border-radius: 0.75rem;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  box-shadow: 0 10px 30px -10px var(--neon-green);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  font-weight: 600;
  border-radius: 0.75rem;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  border-color: var(--neon-green);
  background: rgba(34, 197, 94, 0.1);
}

/* ==========================================================================
   Skill Tags
   ========================================================================== */
.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.375rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: #e5e7eb;
  transition: all 0.3s ease;
}

.skill-tag:hover {
  background: rgba(34, 197, 94, 0.2);
  border-color: var(--neon-green);
}

/* ==========================================================================
   Captcha Modal
   ========================================================================== */
.captcha-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.captcha-overlay.active {
  opacity: 1;
  visibility: visible;
}

.captcha-modal {
  background: var(--base-900);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 1rem;
  padding: 2rem;
  max-width: 400px;
  width: 100%;
  text-align: center;
  transform: scale(0.95);
  transition: transform 0.3s var(--ease-out-expo);
}

.captcha-overlay.active .captcha-modal {
  transform: scale(1);
}

.captcha-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--base-800);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  color: white;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  text-align: center;
  outline: none;
  transition: border-color 0.3s ease;
}

.captcha-input:focus {
  border-color: var(--neon-green);
}

.captcha-input.error {
  border-color: #ef4444;
  animation: shake 0.5s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-5px); }
  40%, 80% { transform: translateX(5px); }
}

.phone-revealed {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  color: var(--neon-green);
  padding: 1rem;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid var(--neon-green);
  border-radius: 0.5rem;
  display: inline-block;
}

/* ==========================================================================
   Terminal Modal
   ========================================================================== */
.terminal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.terminal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.terminal-window {
  width: 100%;
  max-width: 700px;
  background: var(--base-900);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 1rem;
  overflow: hidden;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 1rem;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-dots {
  display: flex;
  gap: 0.5rem;
}

.terminal-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal-dots span:nth-child(1) { background: #ff5f56; }
.terminal-dots span:nth-child(2) { background: #ffbd2e; }
.terminal-dots span:nth-child(3) { background: #27ca40; }

.terminal-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--neon-green);
}

.terminal-close {
  color: var(--base-400);
  cursor: pointer;
  padding: 0.25rem;
  transition: color 0.2s ease;
}

.terminal-close:hover {
  color: white;
}

.terminal-body {
  height: 350px;
  padding: 1rem;
  overflow-y: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  line-height: 1.6;
}

.terminal-line {
  margin-bottom: 0.5rem;
}

.terminal-input-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(0, 0, 0, 0.2);
}

.terminal-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: white;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
}

/* ==========================================================================
   Back to Top
   ========================================================================== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 90;
  width: 48px;
  height: 48px;
  background: var(--base-900);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon-green);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

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

.back-to-top:hover {
  background: var(--neon-green);
  color: var(--base-950);
}

/* ==========================================================================
   Animations
   ========================================================================== */
.chapter {
  opacity: 0;
  transform: translateY(60px);
  transition: all 0.8s var(--ease-out-expo);
}

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

.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s var(--ease-out-expo);
}

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

.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .chapter-grid {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 768px) {
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
  }
}