/* ==========================================================================
   VIBE CODING PORTFOLIO - CORE DESIGN SYSTEM & STYLES
   ========================================================================== */

/* --- CSS Variables & Themes --- */
:root {
  /* Fonts */
  --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Syne', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Base Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Theme 1: Cyber Neon (Default) */
body[data-theme="neon"] {
  --bg-core: #070913;
  --bg-surface: rgba(15, 23, 42, 0.65);
  --bg-surface-hover: rgba(30, 41, 59, 0.8);
  --border-subtle: rgba(148, 163, 184, 0.12);
  --border-glow: rgba(168, 85, 247, 0.35);

  --accent-primary: #8b5cf6;
  --accent-secondary: #06b6d4;
  --accent-tertiary: #ec4899;

  --glow-primary: rgba(139, 92, 246, 0.25);
  --glow-secondary: rgba(6, 182, 212, 0.25);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --grad-text: linear-gradient(135deg, #f8fafc 10%, #a855f7 50%, #06b6d4 100%);
  --grad-accent: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
  --grad-hero-btn: linear-gradient(135deg, #8b5cf6 0%, #d946ef 100%);
}

/* Theme 2: Matrix Emerald */
body[data-theme="matrix"] {
  --bg-core: #040d08;
  --bg-surface: rgba(6, 26, 16, 0.65);
  --bg-surface-hover: rgba(13, 38, 24, 0.8);
  --border-subtle: rgba(74, 222, 128, 0.15);
  --border-glow: rgba(34, 197, 94, 0.4);

  --accent-primary: #10b981;
  --accent-secondary: #22c55e;
  --accent-tertiary: #84cc16;

  --glow-primary: rgba(16, 185, 129, 0.25);
  --glow-secondary: rgba(34, 197, 94, 0.25);

  --text-main: #f0fdf4;
  --text-muted: #86efac;
  --text-dim: #4ade80;

  --grad-text: linear-gradient(135deg, #ffffff 10%, #4ade80 50%, #10b981 100%);
  --grad-accent: linear-gradient(135deg, #10b981 0%, #84cc16 100%);
  --grad-hero-btn: linear-gradient(135deg, #059669 0%, #10b981 100%);
}

/* Theme 3: Solar Flare */
body[data-theme="solar"] {
  --bg-core: #0e0a05;
  --bg-surface: rgba(30, 20, 10, 0.65);
  --bg-surface-hover: rgba(45, 30, 15, 0.8);
  --border-subtle: rgba(251, 146, 60, 0.15);
  --border-glow: rgba(245, 158, 11, 0.4);

  --accent-primary: #f59e0b;
  --accent-secondary: #f97316;
  --accent-tertiary: #ef4444;

  --glow-primary: rgba(245, 158, 11, 0.25);
  --glow-secondary: rgba(249, 115, 22, 0.25);

  --text-main: #fffbeb;
  --text-muted: #fcd34d;
  --text-dim: #fbbf24;

  --grad-text: linear-gradient(135deg, #ffffff 10%, #fbbf24 50%, #f97316 100%);
  --grad-accent: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
  --grad-hero-btn: linear-gradient(135deg, #d97706 0%, #ea580c 100%);
}

/* Theme 4: Deep Cosmic */
body[data-theme="cosmic"] {
  --bg-core: #090615;
  --bg-surface: rgba(20, 15, 40, 0.65);
  --bg-surface-hover: rgba(35, 25, 65, 0.8);
  --border-subtle: rgba(216, 180, 254, 0.15);
  --border-glow: rgba(192, 132, 252, 0.4);

  --accent-primary: #c084fc;
  --accent-secondary: #38bdf8;
  --accent-tertiary: #f43f5e;

  --glow-primary: rgba(192, 132, 252, 0.25);
  --glow-secondary: rgba(56, 189, 248, 0.25);

  --text-main: #faf5ff;
  --text-muted: #d8b4fe;
  --text-dim: #a855f7;

  --grad-text: linear-gradient(135deg, #ffffff 10%, #c084fc 50%, #f43f5e 100%);
  --grad-accent: linear-gradient(135deg, #c084fc 0%, #38bdf8 100%);
  --grad-hero-btn: linear-gradient(135deg, #9333ea 0%, #db2777 100%);
}

/* --- Base & Reset --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-core);
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-core);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-core);
}
::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-primary);
}

/* --- 3D Particle Canvas Background --- */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: auto;
  opacity: 0.95;
  transition: opacity var(--transition-slow);
}

/* Ambient Radial Glow Overlays */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
  transition: background var(--transition-slow);
}
.glow-top {
  top: -15%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: var(--glow-primary);
}
.glow-bottom {
  bottom: -20%;
  left: -10%;
  width: 700px;
  height: 700px;
  background: var(--glow-secondary);
}

/* Layering: Main Content on top of canvas */
header, main, footer, .modal-overlay {
  position: relative;
  z-index: 2;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* --- Typography Utilities --- */
h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.2;
}
.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}
.text-highlight {
  color: var(--accent-secondary);
}
.text-muted {
  color: var(--text-muted);
}

/* --- Glassmorphism UI Components --- */
.glass-panel {
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
}

.glass-card {
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.glass-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: 0 12px 36px var(--glow-primary);
}

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--space-md) 0;
  z-index: 100;
  transition: all var(--transition-normal);
}
.site-header.scrolled {
  background: rgba(7, 9, 19, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-sm) 0;
}
.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--text-main);
}
.logo-symbol {
  font-size: 1.4rem;
  filter: drop-shadow(0 0 10px var(--accent-primary));
}
.brand-logo .highlight {
  color: var(--accent-secondary);
}

.main-nav .nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(12px);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}
.nav-link:hover, .nav-link.active {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.1);
}
.nav-link i {
  font-size: 0.8rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.icon-btn {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.icon-btn:hover {
  border-color: var(--accent-primary);
  transform: scale(1.05);
  box-shadow: 0 0 16px var(--glow-primary);
}
.audio-btn {
  width: auto;
  padding: 0 0.9rem;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}
.audio-btn.active {
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
  box-shadow: 0 0 12px var(--glow-secondary);
}

/* Theme Dropdown */
.theme-dropdown {
  position: relative;
}
.theme-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 170px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
  z-index: 110;
}
.theme-dropdown.open .theme-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.theme-option {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: all var(--transition-fast);
}
.theme-option:hover, .theme-option.active {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
}
.color-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot-neon { background: linear-gradient(135deg, #8b5cf6, #06b6d4); }
.dot-matrix { background: linear-gradient(135deg, #10b981, #22c55e); }
.dot-solar { background: linear-gradient(135deg, #f59e0b, #f97316); }
.dot-cosmic { background: linear-gradient(135deg, #c084fc, #38bdf8); }

.mobile-menu-btn {
  display: none;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
}
.btn-primary {
  background: var(--grad-hero-btn);
  color: #ffffff;
  box-shadow: 0 4px 20px var(--glow-primary);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--glow-primary);
  filter: brightness(1.1);
}
.btn-glass {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}
.btn-glass:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-secondary);
  transform: translateY(-2px);
  color: #ffffff;
}
.btn-dashboard {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.25) 0%, rgba(6, 182, 212, 0.25) 100%);
  border: 1px solid rgba(16, 185, 129, 0.45);
  color: #ffffff;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.btn-dashboard:hover {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.4) 0%, rgba(6, 182, 212, 0.4) 100%);
  border-color: #10b981;
  box-shadow: 0 6px 30px rgba(16, 185, 129, 0.45);
  transform: translateY(-2px);
  color: #ffffff;
}
.live-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
  animation: pulse-dot 2s infinite;
}

/* --- HERO SECTION --- */
.hero-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 7rem var(--space-lg) 4rem;
  position: relative;
}
.hero-content {
  max-width: 900px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1.1rem;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-main);
  margin-bottom: var(--space-lg);
  backdrop-filter: blur(8px);
}
.pulsing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}
.hero-description {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto var(--space-xl);
  font-weight: 400;
}
.hero-description strong {
  color: var(--text-main);
  font-weight: 600;
}
.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

/* 3D Particle Controls Floating Dock */
.particle-dock {
  background: var(--bg-surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.5rem;
  max-width: 680px;
  margin: 0 auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  transition: all var(--transition-normal);
}
.particle-dock:hover {
  border-color: var(--border-glow);
}
.dock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.8rem;
  font-size: 0.85rem;
  font-family: var(--font-mono);
}
.dock-title {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.dock-indicator {
  color: var(--accent-secondary);
  font-weight: 600;
}
.dock-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
  margin-bottom: 0.7rem;
}
.particle-mode-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.65rem 0.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.particle-mode-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-glow);
}
.particle-mode-btn.active {
  background: var(--grad-accent);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 14px var(--glow-primary);
}
.dock-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

/* Scroll Down Indicator */
.scroll-down-indicator {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
}
.scroll-down-indicator a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  transition: color var(--transition-fast);
}
.scroll-down-indicator a:hover {
  color: var(--accent-secondary);
}
.mouse-icon {
  width: 22px;
  height: 34px;
  border: 2px solid var(--text-dim);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 5px;
}
.wheel {
  width: 3px;
  height: 6px;
  background: var(--text-dim);
  border-radius: 2px;
  animation: mouse-scroll 1.6s infinite;
}
@keyframes mouse-scroll {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(12px); opacity: 0; }
}

/* --- Section Shared Styles --- */
.section {
  padding: var(--space-3xl) 0;
  position: relative;
}
.section-header {
  margin-bottom: var(--space-2xl);
}
.section-header.text-center {
  text-align: center;
}
.section-subtitle {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent-secondary);
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  letter-spacing: -0.02em;
  margin-bottom: 0.8rem;
}
.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto;
}

/* --- MANIFESTO SECTION --- */
.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}
.manifesto-card {
  display: flex;
  flex-direction: column;
}
.card-icon-wrap {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}
.icon-purple {
  background: rgba(139, 92, 246, 0.15);
  color: #a855f7;
  border: 1px solid rgba(168, 85, 247, 0.3);
}
.icon-cyan {
  background: rgba(6, 182, 212, 0.15);
  color: #06b6d4;
  border: 1px solid rgba(6, 182, 212, 0.3);
}
.icon-pink {
  background: rgba(236, 72, 153, 0.15);
  color: #ec4899;
  border: 1px solid rgba(236, 72, 153, 0.3);
}
.card-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}
.card-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}
.card-badge {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-dim);
}

/* Metrics Strip */
.metrics-strip {
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: var(--space-xl) var(--space-lg);
  border-radius: var(--radius-lg);
}
.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.metric-value {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: 0.3rem;
}
.metric-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}
.metric-divider {
  width: 1px;
  height: 50px;
  background: var(--border-subtle);
}

/* --- PROJECTS SECTION --- */
.projects-section .section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.filter-pills {
  display: flex;
  gap: 0.5rem;
  background: rgba(15, 23, 42, 0.6);
  padding: 0.35rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}
.filter-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-primary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.filter-btn:hover, .filter-btn.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-main);
}
.filter-btn.active {
  background: var(--grad-accent);
  color: #ffffff;
  box-shadow: 0 2px 10px var(--glow-primary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-xl);
}
.project-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}
.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
}
.project-category {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.project-status {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: #10b981;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.project-title {
  font-size: 1.4rem;
  margin-bottom: 0.7rem;
}
.project-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: var(--space-lg);
}
.project-tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  padding: 0.25rem 0.65rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
}
.project-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-md);
}
.project-detail-btn {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.project-detail-btn:hover {
  color: var(--accent-secondary);
  transform: translateX(3px);
}
.project-ext-link {
  color: var(--text-dim);
  font-size: 0.95rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.project-ext-link:hover {
  color: var(--text-main);
}

/* --- ARSENAL / STACK SECTION --- */
.arsenal-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
}
.arsenal-card {
  padding: var(--space-lg);
}
.arsenal-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-md);
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}
.arsenal-icon {
  font-size: 1.3rem;
  color: var(--accent-secondary);
}
.arsenal-header h3 {
  font-size: 1.15rem;
  font-weight: 600;
}
.arsenal-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.tool-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 0.2rem;
}
.tool-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* --- INTERACTIVE TERMINAL SECTION --- */
.terminal-window {
  max-width: 850px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--radius-lg);
}
.terminal-header {
  background: rgba(10, 14, 26, 0.8);
  padding: 0.75rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.terminal-dots {
  display: flex;
  gap: 6px;
}
.terminal-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }
.terminal-title {
  color: var(--text-muted);
}
.terminal-meta {
  color: var(--text-dim);
}

.terminal-body {
  padding: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  min-height: 240px;
  max-height: 380px;
  overflow-y: auto;
  line-height: 1.55;
  background: rgba(5, 7, 14, 0.8);
}
.terminal-line {
  margin-bottom: 0.35rem;
  word-break: break-all;
}
.terminal-prompt-line {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.4rem;
}
.prompt-user {
  color: #10b981;
  font-weight: 600;
}
.prompt-path {
  color: #38bdf8;
}
.terminal-input {
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-main);
  flex-grow: 1;
  caret-color: var(--accent-secondary);
}

.terminal-quick-chips {
  padding: 0.75rem 1.2rem;
  background: rgba(10, 14, 26, 0.8);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.chip-label {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
}
.terminal-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.terminal-chip:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--accent-secondary);
}

/* --- FOOTER / CONTACT --- */
.site-footer {
  padding: var(--space-3xl) 0 var(--space-xl);
}
.footer-card {
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  margin-bottom: var(--space-2xl);
}
.footer-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: 0.8rem;
}
.footer-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}
.contact-links {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.4rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-main);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-normal);
}
.contact-pill:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 18px var(--glow-primary);
}
.copy-tooltip {
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  background: #10b981;
  color: #ffffff;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}
.copy-tooltip.show {
  opacity: 1;
  visibility: visible;
  top: -36px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-lg);
  font-size: 0.85rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: var(--space-md);
}
.server-status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  margin-right: 0.3rem;
}

/* --- MODAL --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal-container {
  width: 100%;
  max-width: 650px;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}
.modal-overlay.open .modal-container {
  transform: scale(1);
}
.modal-close-btn {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition-fast);
}
.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: var(--accent-secondary);
}

/* --- Keyframe Animations --- */
.animate-fade-in {
  animation: fadeIn 0.8s ease forwards;
}
.animate-fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- Responsive Media Queries --- */
@media (max-width: 900px) {
  .desktop-only {
    display: none;
  }
  .dock-buttons {
    grid-template-columns: repeat(2, 1fr);
  }
  .metrics-strip {
    flex-direction: column;
    gap: var(--space-lg);
  }
  .metric-divider {
    display: none;
  }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    padding: var(--space-md);
    background: rgba(7, 9, 19, 0.95);
    backdrop-filter: blur(25px);
    border-bottom: 1px solid var(--border-subtle);
    display: none;
  }
  .main-nav.mobile-open {
    display: block;
  }
  .main-nav .nav-links {
    flex-direction: column;
    background: transparent;
    border: none;
    padding: 0;
    gap: 0.5rem;
  }
  .nav-link {
    width: 100%;
    padding: 0.75rem 1rem;
  }
  .mobile-menu-btn {
    display: inline-flex;
  }
  .projects-section .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}