/* ==========================================================================
   DESIGN SYSTEM & CUSTOM VARIABLES (THE MATHEMATICAL & TECH THEME)
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-space: #07080c;
  --bg-card: rgba(14, 18, 28, 0.55);
  --bg-card-hover: rgba(22, 28, 45, 0.7);
  --border-color: rgba(0, 240, 255, 0.15);
  --border-color-hover: rgba(0, 240, 255, 0.4);
  
  --accent-cyan: #00f0ff;
  --accent-magenta: #ff007f;
  --accent-green: #39ff14;
  --accent-purple: #ab47bc;
  
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #484f58;
  
  /* Neon Shadows and Glows */
  --glow-cyan: 0 0 10px rgba(0, 240, 255, 0.3), 0 0 20px rgba(0, 240, 255, 0.1);
  --glow-magenta: 0 0 10px rgba(255, 0, 127, 0.3), 0 0 20px rgba(255, 0, 127, 0.1);
  --glow-green: 0 0 10px rgba(57, 255, 20, 0.3);
  
  /* Fonts */
  --font-geom: 'Outfit', sans-serif;
  --font-code: 'JetBrains Mono', monospace;
  
  /* Layout */
  --navbar-height: 70px;
  --transition-speed: 0.3s;
}

/* ==========================================================================
   GLOBAL RESET & BASE STYLING
   ========================================================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-space);
  color: var(--text-primary);
  overflow-x: hidden;
}

body {
  font-family: var(--font-geom);
  line-height: 1.6;
  min-height: 100vh;
}

/* Custom Selection */
::selection {
  background: var(--accent-cyan);
  color: #000;
  text-shadow: none;
}

/* Cyber Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-space);
}
::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

/* ==========================================================================
   BACKGROUND & OVERLAYS
   ========================================================================== */

#canvas-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background-color: var(--bg-space);
  pointer-events: all;
}

.scanline-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(7, 8, 12, 0) 96%, rgba(0, 240, 255, 0.03) 98%, rgba(0, 240, 255, 0.03) 100%);
  background-size: 100% 6px;
  z-index: 999;
  pointer-events: none;
  opacity: 0.8;
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  background: rgba(7, 8, 12, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-geom);
  font-weight: 800;
  letter-spacing: 1.5px;
}

.logo-svg {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 0 4px var(--accent-cyan));
}

.logo-dot {
  color: var(--accent-cyan);
  font-weight: 400;
  font-size: 0.8rem;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  transition: color var(--transition-speed);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
  transition: width var(--transition-speed);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link.active {
  color: var(--accent-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.4);
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: rgba(0, 240, 255, 0.05);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  border: 1px solid rgba(0, 240, 255, 0.1);
}

.status-pulse {
  width: 6px;
  height: 6px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: var(--glow-green);
  animation: pulse 2s infinite;
}

.audio-btn {
  background: none;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-speed);
  position: relative;
}

.audio-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.audio-icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.audio-tooltip {
  position: absolute;
  top: 45px;
  right: 0;
  background: #0f141c;
  border: 1px solid var(--accent-cyan);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-family: var(--font-code);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-speed);
}

.audio-btn:hover .audio-tooltip {
  opacity: 1;
}

/* ==========================================================================
   GLASSMORPHISM CARD BASE
   ========================================================================== */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  transition: border-color var(--transition-speed), box-shadow var(--transition-speed), transform var(--transition-speed);
  overflow: hidden;
}

.card-header {
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 0, 0, 0.2);
}

.card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}
.card-dot.red { background-color: #ff5f56; }
.card-dot.yellow { background-color: #ffbd2e; }
.card-dot.green { background-color: #27c93f; }

.card-title {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-left: 0.5rem;
}

.card-body {
  padding: 1.5rem;
}

.card-body.flex-column {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.glow-on-hover:hover {
  border-color: var(--border-color-hover);
  box-shadow: 0 8px 32px 0 rgba(0, 240, 255, 0.05), var(--glow-cyan);
  transform: translateY(-2px);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  font-family: var(--font-geom);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-speed);
  text-align: center;
}

.btn-primary {
  background: var(--accent-cyan);
  color: #07080c;
  border: 1px solid var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.btn-primary:hover {
  background: transparent;
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.project-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
  width: 100%;
}

.btn-card-action, .btn-card-link {
  flex: 1;
  text-align: center;
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--accent-cyan);
  font-family: var(--font-code);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.6rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-speed);
  letter-spacing: 1px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-card-action:hover, .btn-card-link:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

/* ==========================================================================
   SECTIONS GENERAL
   ========================================================================== */

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6rem 2rem;
}

.section-header {
  margin-bottom: 3rem;
  position: relative;
}

.section-tag {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.section-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-magenta));
  margin-top: 0.75rem;
}

.section-desc {
  max-width: 800px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-section {
  min-height: 100vh;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding-top: var(--navbar-height);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.code-tag {
  font-family: var(--font-code);
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
}

.accent-glow {
  background: linear-gradient(90deg, var(--accent-cyan) 0%, var(--accent-magenta) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.2));
}

.hero-subtitle {
  font-size: 1.3rem;
  font-family: var(--font-code);
  color: var(--accent-green);
  min-height: 2.5rem;
  margin-bottom: 2.5rem;
}

.hero-metrics {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.metric-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 0.8rem 1.2rem;
  border-radius: 6px;
  min-width: 140px;
}

.metric-label {
  font-size: 0.65rem;
  font-family: var(--font-code);
  color: var(--text-secondary);
  letter-spacing: 1px;
  margin-bottom: 0.25rem;
}

.metric-val {
  font-family: var(--font-code);
  font-size: 1.1rem;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
}

/* Hologram Frame (Hero Right) */
.hologram-frame {
  position: relative;
  width: 320px;
  height: 320px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hologram-profile {
  width: 80%;
  height: 80%;
  border-radius: 50%;
  z-index: 5;
  transition: transform var(--transition-speed);
  object-fit: cover;
}

.hologram-frame:hover .hologram-profile {
  transform: scale(1.05);
}

.hologram-ring {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1px solid transparent;
  pointer-events: none;
}

.ring-1 {
  border: 2px dashed var(--accent-cyan);
  animation: rotateClockwise 25s linear infinite;
  opacity: 0.4;
}

.ring-2 {
  border: 1px solid var(--accent-magenta);
  width: 90%;
  height: 90%;
  top: 5%;
  left: 5%;
  border-right-color: transparent;
  border-left-color: transparent;
  animation: rotateCounterClockwise 15s linear infinite;
  opacity: 0.6;
}

.ring-3 {
  border: 1.5px dotted var(--accent-green);
  width: 106%;
  height: 106%;
  top: -3%;
  left: -3%;
  animation: rotateClockwise 40s linear infinite;
  opacity: 0.3;
}

.hologram-grid-overlay {
  position: absolute;
  top: -5%;
  left: -5%;
  width: 110%;
  height: 110%;
  background-image: 
    linear-gradient(rgba(0, 240, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.05) 1px, transparent 1px);
  background-size: 20px 20px;
  border-radius: 50%;
  pointer-events: none;
  mask-image: radial-gradient(circle, black 60%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle, black 60%, transparent 70%);
}

.scroll-arrow {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.arrow-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--accent-cyan), transparent);
  animation: arrowGlow 2s infinite;
}

.arrow-text {
  font-family: var(--font-code);
  font-size: 0.65rem;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

/* ==========================================================================
   IDENTITY (ABOUT) SECTION STYLING
   ========================================================================== */

.identity-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: flex-start;
}

.identity-left {
  font-size: 0.95rem;
  overflow: auto;
}

.json-code {
  font-family: var(--font-code);
  line-height: 1.6;
}

.json-key {
  color: var(--accent-magenta);
}

.json-val {
  color: var(--accent-cyan);
}

.identity-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.identity-text {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.skill-matrix {
  margin-top: 3rem;
}

.skill-title {
  font-family: var(--font-code);
  font-size: 0.9rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  letter-spacing: 1px;
}

.skill-item {
  margin-bottom: 1.25rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  font-family: var(--font-code);
  margin-bottom: 0.4rem;
}

.skill-bar-container {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
  overflow: hidden;
}

.skill-bar {
  height: 100%;
  border-radius: 3px;
  transition: width 1s cubic-bezier(0.1, 0.8, 0.3, 1);
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.3);
}

/* ==========================================================================
   SANDBOX (WAVE GENERATOR) SECTION STYLING
   ========================================================================== */

.sandbox-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 3rem;
  align-items: flex-start;
}

.formula-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px dashed var(--border-color);
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 1.5rem;
  text-align: center;
  font-size: 1.1rem;
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.control-group {
  margin-bottom: 1.5rem;
}

.control-label {
  font-family: var(--font-code);
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 0.5rem;
}

/* Custom Select Styling */
.custom-select-wrapper {
  position: relative;
  width: 100%;
}

.custom-select {
  width: 100%;
  background: rgba(7, 8, 12, 0.8);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-code);
  font-size: 0.9rem;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  appearance: none;
  cursor: pointer;
  transition: border-color var(--transition-speed);
}

.custom-select:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.custom-select-wrapper::after {
  content: '▼';
  font-size: 0.7rem;
  color: var(--accent-cyan);
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

/* Slider Header */
.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-value {
  font-family: var(--font-code);
  font-size: 0.85rem;
  color: var(--accent-cyan);
}

/* Custom Range Slider */
.range-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
  outline: none;
  margin-top: 0.25rem;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
  cursor: pointer;
  transition: transform 0.1s;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.3);
}

.wave-realtime-stats {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 1.5rem;
  margin-top: 1.5rem;
}

.stat-line {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-code);
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
}

/* Oscilloscope Sandbox visualizer styling */
.relative-body {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: #030406;
}

#canvas-plot {
  width: 100%;
  height: 320px;
  background-color: #030406;
  border: 1px solid rgba(255, 255, 255, 0.02);
}

.system-time {
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: auto;
}

.grid-measure {
  position: absolute;
  font-family: var(--font-code);
  font-size: 0.65rem;
  color: var(--text-muted);
  pointer-events: none;
}

.horizontal-measure {
  bottom: 0.5rem;
  right: 1.5rem;
}

.vertical-measure {
  top: 1.5rem;
  left: 0.5rem;
  transform: rotate(-90deg);
  transform-origin: left top;
}

/* ==========================================================================
   PROJECTS SECTION STYLING
   ========================================================================== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.project-card {
  height: 380px;
  display: flex;
  flex-direction: column;
}

.card-tag {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--accent-magenta);
  font-weight: 700;
  letter-spacing: 1px;
}

.project-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.project-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.project-formula {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  padding: 0.6rem 0.5rem;
  margin-bottom: 1.25rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--accent-cyan);
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-tech-tags span {
  font-family: var(--font-code);
  font-size: 0.7rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  color: var(--text-secondary);
}

.terminal-output-bar {
  background: #020305;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.5rem;
  margin-top: 1rem;
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--accent-green);
  max-height: 80px;
  overflow-y: auto;
  white-space: pre-wrap;
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   TERMINAL (CONTACT) SECTION STYLING
   ========================================================================== */

.terminal-container {
  border-color: rgba(0, 240, 255, 0.25);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.terminal-title-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.terminal-icon {
  display: flex;
  align-items: center;
}

.terminal-controls {
  display: flex;
  gap: 0.4rem;
  margin-left: auto;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.terminal-dot.close { background-color: #ff5f56; }
.terminal-dot.minimize { background-color: #ffbd2e; }
.terminal-dot.expand { background-color: #27c93f; }

.terminal-body {
  background-color: #030508;
  height: 380px;
  font-family: var(--font-code);
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.terminal-output {
  flex-grow: 1;
  overflow-y: auto;
  margin-bottom: 1rem;
}

.terminal-line {
  line-height: 1.5;
  margin-bottom: 0.4rem;
  font-size: 0.85rem;
  word-break: break-all;
}

.terminal-input-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.terminal-prompt {
  color: var(--accent-cyan);
  font-size: 0.85rem;
  white-space: nowrap;
}

#terminal-input {
  flex-grow: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-code);
  font-size: 0.85rem;
  padding: 0;
}

/* Utilities */
.text-cyan { color: var(--accent-cyan); }
.text-magenta { color: var(--accent-magenta); }
.text-green { color: var(--accent-green); }
.text-muted { color: var(--text-muted); }
.text-small { font-size: 0.75rem; }

/* ==========================================================================
   FOOTER SECTION STYLING
   ========================================================================== */

.footer-container {
  border-top: 1px solid var(--border-color);
  padding: 3rem 2rem;
  background: #040508;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-code);
  font-size: 0.85rem;
}

.footer-social-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.footer-social-link:hover {
  color: var(--accent-cyan);
  text-shadow: var(--glow-cyan);
}

.social-divider {
  color: var(--text-muted);
  margin: 0 0.5rem;
}

/* ==========================================================================
   KEYFRAME ANIMATIONS
   ========================================================================== */

@keyframes pulse {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.2); opacity: 0.6; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes rotateClockwise {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes rotateCounterClockwise {
  from { transform: rotate(360deg); }
  to { transform: rotate(0deg); }
}

@keyframes arrowGlow {
  0%, 100% { height: 30px; opacity: 0.3; }
  50% { height: 60px; opacity: 1; }
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
    text-align: center;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-metrics {
    justify-content: center;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .identity-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .sandbox-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* Can implement burger or simple responsive nav, but since keeping minimal: */
  }
  
  .navbar {
    padding: 0 1rem;
  }
  
  .section-container {
    padding: 4rem 1rem;
  }
  
  .footer-grid {
    flex-direction: column;
    gap: 1.5rem;
    text-align: center;
  }
  
  .hero-section {
    padding-top: 100px;
  }
}