/* ==========================================================================
   Nishant Mohan — Personal Portfolio & Interactive Engineering Lab
   Design System: Refined Slate / Terminal Systems Aesthetics
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,700;1,400&family=Space+Grotesk:wght@500;600;700&display=swap');

@property --angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

/* --- Theme 1: Slate Cosmos (Default) --- */
:root, [data-theme="slate"] {
  --bg-main: #11151e;
  --bg-surface: #161b26;
  --bg-card: rgba(24, 30, 44, 0.75);
  --bg-card-hover: rgba(32, 40, 58, 0.95);
  --bg-terminal: #181d28;
  --bg-terminal-header: #212838;
  --bg-glass: rgba(17, 21, 30, 0.88);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-active: rgba(245, 158, 11, 0.45);
  --border-cyan: rgba(14, 165, 233, 0.4);
  --border-emerald: rgba(34, 197, 94, 0.35);

  --accent-amber: #f59e0b;
  --accent-amber-glow: rgba(245, 158, 11, 0.2);
  --accent-cyan: #38bdf8;
  --accent-cyan-glow: rgba(56, 189, 248, 0.2);
  --accent-blue: #0284c7;
  --accent-emerald: #22c55e;
  --accent-emerald-glow: rgba(34, 197, 94, 0.2);
  --accent-violet: #a855f7;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dim: #475569;
  --text-accent: #fbbf24;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --max-width: 1200px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.55);
  --shadow-glow-amber: 0 0 25px -4px rgba(245, 158, 11, 0.25);
  --shadow-glow-cyan: 0 0 25px -4px rgba(56, 189, 248, 0.25);
}

/* --- Theme 2: Cyberpunk Amber (Monochrome Gold) --- */
[data-theme="amber"] {
  --bg-main: #14120e;
  --bg-surface: #1c1913;
  --bg-card: rgba(33, 28, 20, 0.8);
  --bg-card-hover: rgba(46, 39, 26, 0.95);
  --bg-terminal: #1a1712;
  --bg-terminal-header: #292319;
  --bg-glass: rgba(20, 18, 14, 0.9);

  --border-subtle: rgba(245, 158, 11, 0.12);
  --border-medium: rgba(245, 158, 11, 0.2);
  --border-active: rgba(245, 158, 11, 0.6);
  --border-cyan: rgba(251, 191, 36, 0.5);

  --accent-amber: #f59e0b;
  --accent-cyan: #fbbf24;
  --accent-blue: #d97706;
  --accent-emerald: #10b981;

  --text-primary: #fef3c7;
  --text-secondary: #d97706;
  --text-muted: #92400e;
  --text-dim: #78350f;
}

/* --- Theme 3: Deep Nord (Arctic Frost & Cobalt) --- */
[data-theme="nord"] {
  --bg-main: #0f172a;
  --bg-surface: #1e293b;
  --bg-card: rgba(30, 41, 59, 0.75);
  --bg-card-hover: rgba(45, 60, 85, 0.95);
  --bg-terminal: #182234;
  --bg-terminal-header: #24324a;
  --bg-glass: rgba(15, 23, 42, 0.9);

  --border-subtle: rgba(148, 163, 184, 0.12);
  --border-medium: rgba(148, 163, 184, 0.22);
  --border-active: rgba(56, 189, 248, 0.5);
  --border-cyan: rgba(56, 189, 248, 0.4);

  --accent-amber: #38bdf8;
  --accent-cyan: #7dd3fc;
  --accent-blue: #0284c7;
  --accent-emerald: #34d399;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-dim: #475569;
}

/* --- Theme 4: Monokai Matrix (Hacker Green) --- */
[data-theme="matrix"] {
  --bg-main: #0a110d;
  --bg-surface: #0e1a13;
  --bg-card: rgba(16, 30, 22, 0.8);
  --bg-card-hover: rgba(24, 44, 32, 0.95);
  --bg-terminal: #0c1610;
  --bg-terminal-header: #14241a;
  --bg-glass: rgba(10, 17, 13, 0.9);

  --border-subtle: rgba(34, 197, 94, 0.15);
  --border-medium: rgba(34, 197, 94, 0.25);
  --border-active: rgba(34, 197, 94, 0.6);
  --border-cyan: rgba(74, 222, 128, 0.5);

  --accent-amber: #22c55e;
  --accent-cyan: #4ade80;
  --accent-blue: #16a34a;
  --accent-emerald: #22c55e;

  --text-primary: #f0fdf4;
  --text-secondary: #86efac;
  --text-muted: #4ade80;
  --text-dim: #166534;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  font-size: 16px;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.75;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.loading {
  opacity: 0;
}
body:not(.loading) {
  opacity: 1;
  transition: opacity 0.6s ease-in-out;
}
body.mobile-nav-open {
  overflow: hidden;
}

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

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

::-webkit-scrollbar-thumb {
  background: #252e42;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-amber);
}

/* Background Canvas */
#bg-canvas, #matrix-canvas, #confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

#bg-canvas {
  opacity: 0.45;
}

#matrix-canvas {
  z-index: 999;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

#matrix-canvas.active {
  opacity: 0.95;
  pointer-events: auto;
}

#confetti-canvas {
  z-index: 1200;
  pointer-events: none;
}

/* --- Container & Section Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

section {
  padding: 6.5rem 0;
  position: relative;
  z-index: 1;
}

section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

/* Section Headers */
.section-header {
  margin-bottom: 3.5rem;
  text-align: left;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 2px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  background: rgba(245, 158, 11, 0.08);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 0.75rem;
  max-width: 680px;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  z-index: 100;
  transition: background-color var(--transition-normal), backdrop-filter var(--transition-normal), border-color var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background-color: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  z-index: 200;
}

.nav-brand .prompt-symbol {
  color: var(--accent-amber);
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--accent-amber);
  transition: width var(--transition-normal);
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Theme Switcher Button */
.theme-toggle-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.4rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  color: var(--accent-amber);
  border-color: var(--border-active);
}

.terminal-trigger-btn {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-amber);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  transition: all var(--transition-fast);
}

.terminal-trigger-btn:hover {
  background: var(--accent-amber);
  color: var(--bg-main);
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.35);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 200;
}

/* Mobile Nav Panel */
#mobile-nav-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  background: var(--bg-surface);
  z-index: 150;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  box-shadow: -5px 0 25px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  padding: 85px 24px 24px;
  border-left: 1px solid var(--border-subtle);
}

body.mobile-nav-open #mobile-nav-panel {
  transform: translateX(0);
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-nav-links .nav-link {
  font-size: 1rem;
}

/* --- Hero Section --- */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 6rem;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.hero-subtitle-line {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--accent-cyan);
  letter-spacing: 1px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5.5vw, 4.25rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.typewriter-wrapper {
  color: var(--text-primary);
}

.hero-cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.1em;
  background-color: var(--accent-amber);
  vertical-align: -0.15em;
  margin-left: 2px;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  from, to { opacity: 1; }
  50% { opacity: 0; }
}

.hero-dynamic-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--accent-amber);
  min-height: 2rem;
  display: flex;
  align-items: center;
}

.hero-description {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 580px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.5rem;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary {
  background: var(--accent-amber);
  color: var(--bg-main);
  border: 1px solid var(--accent-amber);
  box-shadow: 0 4px 18px rgba(245, 158, 11, 0.25);
}

.btn-primary:hover {
  background: #fbbf24;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245, 158, 11, 0.38);
}

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

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-2px);
}

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

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

/* Hero Terminal Preview Card */
.hero-visual {
  position: relative;
  padding: 3px;
}

.hero-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: calc(var(--radius-md) + 3px);
  padding: 2px;
  background: conic-gradient(from var(--angle), transparent 70%, var(--accent-amber), var(--accent-cyan));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  z-index: 0;
}

.terminal-card {
  background: var(--bg-terminal);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-lg), var(--shadow-glow-amber);
  border: 1px solid var(--border-subtle);
}

.terminal-header {
  background: var(--bg-terminal-header);
  padding: 0.6rem 1rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.terminal-buttons {
  display: flex;
  gap: 7px;
}

.term-btn {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.term-btn.red { background-color: #ef4444; }
.term-btn.yellow { background-color: #f59e0b; }
.term-btn.green { background-color: #22c55e; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
}

.terminal-body {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.6;
  color: #cbd5e1;
  max-height: 380px;
  overflow-y: auto;
  white-space: pre-wrap;
  position: relative;
}

.terminal-body::-webkit-scrollbar {
  width: 8px;
}
.terminal-body::-webkit-scrollbar-track {
  background: var(--bg-terminal);
}
.terminal-body::-webkit-scrollbar-thumb {
  background: #28334a;
  border-radius: 4px;
}

/* Prompt and Segment Styling */
.term-line {
  margin-bottom: 0.5rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.term-prompt-segment {
  display: inline-flex;
  align-items: center;
  font-size: 0.78rem;
  margin-bottom: 0.25rem;
  border-radius: 3px;
  overflow: hidden;
}

.seg-dir {
  background: var(--accent-blue);
  color: #fff;
  padding: 1px 7px;
  font-weight: 500;
}

.seg-git {
  background: var(--accent-emerald);
  color: #000;
  padding: 1px 7px;
  font-weight: 600;
}

.term-prompt-arrow {
  color: var(--accent-amber);
  font-weight: 700;
  margin-right: 0.35rem;
}

.term-prompt {
  color: var(--accent-amber);
}

.term-path {
  color: var(--accent-cyan);
}

.term-output {
  color: var(--text-primary);
}

.term-highlight {
  color: var(--accent-amber);
}

.term-success {
  color: var(--accent-emerald);
}

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

.term-dim {
  color: var(--text-muted);
}

/* Quick Metrics Bar */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 4rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
}

.metric-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  border-right: 1px solid var(--border-subtle);
  padding-right: 1rem;
}

.metric-item:last-child {
  border-right: none;
  padding-right: 0;
}

.metric-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-amber);
  line-height: 1;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text {
  font-size: 1.02rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.about-text strong {
  color: var(--text-primary);
}

.education-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 1rem;
  position: relative;
  overflow: hidden;
}

.education-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent-cyan);
}

.edu-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
}

.edu-institute {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
}

.edu-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent-cyan);
}

.edu-degree {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.edu-score {
  display: inline-block;
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: rgba(14, 165, 233, 0.1);
  color: var(--accent-cyan);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(14, 165, 233, 0.25);
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.highlight-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-normal);
}

.highlight-box:hover {
  transform: translateY(-3px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-glow-amber);
}

.highlight-icon-svg {
  width: 32px;
  height: 32px;
  color: var(--accent-amber);
  margin-bottom: 0.75rem;
}

.highlight-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.highlight-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* --- Experience Timeline --- */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding-left: 2.5rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-amber), var(--accent-cyan), var(--border-subtle));
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-marker {
  position: absolute;
  left: -2.5rem;
  top: 1.5rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-main);
  border: 3px solid var(--accent-amber);
  box-shadow: 0 0 10px var(--accent-amber);
  z-index: 2;
  transition: transform var(--transition-fast);
}

.timeline-item:nth-child(2) .timeline-marker {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  backdrop-filter: blur(8px);
  transition: all var(--transition-normal);
}

.timeline-card:hover {
  border-color: var(--border-active);
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.timeline-role {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.timeline-company-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.35rem;
}

.company-icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 3px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.timeline-card:hover .company-icon-badge {
  transform: scale(1.08);
}

.company-logo-svg {
  display: block;
}

.company-logo-img {
  width: 20px;
  height: auto;
  max-height: 22px;
  object-fit: contain;
  display: block;
}

.timeline-company {
  color: var(--accent-amber);
  font-weight: 600;
  font-size: 0.95rem;
}

.brand-mention {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-primary);
  font-weight: 600;
  vertical-align: middle;
}

.inline-brand-svg {
  display: inline-block;
  vertical-align: middle;
  border-radius: 2px;
}

.inline-brand-img {
  width: 15px;
  height: auto;
  max-height: 16px;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.timeline-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.timeline-list li {
  position: relative;
  padding-left: 1.25rem;
}

.timeline-list li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--accent-amber);
  font-family: var(--font-mono);
  font-weight: 700;
}

.timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

/* --- Tech Filter Bar --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: rgba(245, 158, 11, 0.15);
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

/* Dimming/Highlighting for Interactive Cross-Filtering */
.project-card.dimmed, .mini-project-card.dimmed {
  opacity: 0.25;
  filter: grayscale(80%);
  transform: scale(0.98);
}

.project-card.highlighted, .mini-project-card.highlighted {
  border-color: var(--accent-amber);
  box-shadow: 0 0 25px rgba(245, 158, 11, 0.3);
  transform: scale(1.02);
}

/* --- Featured Projects Section (The Big 4) --- */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-smooth), border-color var(--transition-normal), box-shadow var(--transition-normal), opacity var(--transition-normal);
  position: relative;
}

.project-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-lg), var(--shadow-glow-amber);
}

.project-banner {
  height: 140px;
  position: relative;
  background: linear-gradient(135deg, #171d2b 0%, #20283b 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border-subtle);
}

.project-banner.astara-theme {
  background: radial-gradient(circle at top right, rgba(14, 165, 233, 0.25), transparent 70%),
              radial-gradient(circle at bottom left, rgba(168, 85, 247, 0.2), transparent 70%),
              #171d2b;
}

.project-banner.vayu-theme {
  background: radial-gradient(circle at top right, rgba(34, 197, 94, 0.25), transparent 70%),
              radial-gradient(circle at bottom left, rgba(14, 165, 233, 0.2), transparent 70%),
              #151e28;
}

.project-banner.dotbox-theme {
  background: radial-gradient(circle at top right, rgba(245, 158, 11, 0.25), transparent 70%),
              radial-gradient(circle at bottom left, rgba(239, 68, 68, 0.2), transparent 70%),
              #1f1b1c;
}

.project-banner.distill-theme {
  background: radial-gradient(circle at top right, rgba(168, 85, 247, 0.25), transparent 70%),
              radial-gradient(circle at bottom left, rgba(14, 165, 233, 0.2), transparent 70%),
              #1c1a2c;
}

.banner-svg-icon {
  width: 44px;
  height: 44px;
  color: var(--text-primary);
  opacity: 0.85;
  transition: transform var(--transition-normal);
}

.project-card:hover .banner-svg-icon {
  transform: scale(1.1);
}

.project-badge-overlay {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(17, 21, 30, 0.85);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-subtle);
  color: var(--accent-amber);
}

.project-content {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.project-highlights-list {
  list-style: none;
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.project-highlights-list li {
  padding-left: 1rem;
  position: relative;
}

.project-highlights-list li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.5rem;
}

.tech-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  background: rgba(14, 165, 233, 0.08);
  border: 1px solid rgba(14, 165, 233, 0.2);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tech-pill:hover {
  background: var(--accent-cyan);
  color: #11151e;
}

.project-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: auto;
}

.btn-card {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-card-primary {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.btn-card-primary:hover {
  background: var(--accent-amber);
  color: var(--bg-main);
}

.btn-card-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.btn-card-secondary:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

/* =========================================================================
   INTERACTIVE LABS SUITE:
   1. VayuReader Architecture & Security Simulator
   2. Astara Interactive Celestial Planetarium Viewport
   3. Dots-and-Boxes RL & MCTS Tree
   ========================================================================= */

.interactive-lab-section {
  background: rgba(22, 27, 38, 0.65);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.lab-tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 2rem;
}

.lab-tab-btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.6rem 1.25rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lab-tab-btn:hover {
  color: var(--text-primary);
}

.lab-tab-btn.active {
  color: var(--accent-amber);
  border-bottom-color: var(--accent-amber);
  font-weight: 600;
}

.lab-panel {
  display: none;
}

.lab-panel.active {
  display: block;
}

/* --- Lab 1: DistillNews AI & RAG Engine (distillnews.nmohan.tech) --- */
.distill-lab-grid {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 2rem;
  align-items: start;
}

.distill-controls-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.distill-live-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.distill-search-box {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.distill-search-box input {
  flex: 1;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.6rem 0.85rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.distill-search-box input:focus {
  border-color: var(--accent-cyan);
}

.distill-topics-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.distill-chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.distill-chip:hover, .distill-chip.active {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.agent-pipeline-status {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.agent-step {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.agent-step.active {
  color: var(--accent-cyan);
  font-weight: 500;
}

.agent-step-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-dim);
}

.agent-step.active .agent-step-dot {
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
}

/* Distill News Output Card */
.distill-output-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  box-shadow: var(--shadow-md);
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  padding-bottom: 0.75rem;
}

.distill-result-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--accent-amber);
  line-height: 1.4;
  margin: 0;
}

.distill-bullets-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.distill-bullets-list li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.distill-bullets-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent-cyan);
}

.distill-sources-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
}

.source-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.source-pill {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
}

.distill-footer-action {
  margin-top: 0.5rem;
}

/* --- Lab 1, 2 & 3: Live Embedded Viewports (DistillNews, Astara, DotBoxes) --- */
.distill-live-container,
.astara-live-container,
.dotboxes-live-container {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}

.distill-live-header,
.astara-live-header,
.dotboxes-live-header {
  background: var(--bg-terminal-header);
  padding: 0.65rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.distill-live-status,
.astara-live-status,
.dotboxes-live-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.live-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulse-dot-anim 1.8s infinite ease-in-out;
}

@keyframes pulse-dot-anim {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.5; }
}

.distill-live-actions,
.astara-live-actions,
.dotboxes-live-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-live-action {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 0.38rem 0.8rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: all var(--transition-fast);
  line-height: 1;
}

.btn-live-action:hover {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.distill-iframe-wrapper,
.astara-iframe-wrapper,
.dotboxes-iframe-wrapper {
  width: 100%;
  height: 760px;
  min-height: 600px;
  background: #0d1117;
  position: relative;
  overflow: hidden;
}

#distill-live-iframe,
#astara-live-iframe,
#dotboxes-live-iframe,
.distill-iframe-wrapper iframe,
.astara-iframe-wrapper iframe,
.dotboxes-iframe-wrapper iframe {
  width: 100% !important;
  height: 100% !important;
  border: none;
  display: block;
}

.distill-live-footer,
.astara-live-footer,
.dotboxes-live-footer {
  padding: 0.85rem 1.25rem;
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* --- Lab 3: Dots-and-Boxes RL & MCTS Tree --- */
.rl-lab-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.mcts-tree-view {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  max-height: 280px;
  overflow-y: auto;
  white-space: pre-wrap;
}

/* --- Secondary Projects Grid (Open Source & Tools) --- */
.secondary-projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.mini-project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
}

.mini-project-card:hover {
  border-color: var(--border-cyan);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-cyan);
}

.mini-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.folder-svg-icon {
  width: 22px;
  height: 22px;
  color: var(--accent-cyan);
}

.mini-project-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.mini-project-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1rem;
}

.mini-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-subtle);
}

.repo-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.repo-link:hover {
  color: var(--accent-amber);
}

/* --- Skills Arsenal --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.skill-category-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: all var(--transition-normal);
}

.skill-category-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
}

.category-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.category-svg-icon {
  width: 20px;
  height: 20px;
  color: var(--accent-amber);
}

.skill-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-chip {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.skill-chip:hover {
  background: rgba(245, 158, 11, 0.12);
  border-color: var(--accent-amber);
  color: var(--accent-amber);
  transform: scale(1.04);
  box-shadow: inset 0 0 8px rgba(245, 158, 11, 0.2);
}

/* --- Achievements Section --- */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.achievement-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  z-index: 1;
}

.achievement-card:hover {
  border-color: var(--border-active);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-amber);
}

.achievement-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-10deg);
  font-size: 5.5rem;
  font-weight: 900;
  color: #fff;
  opacity: 0.04;
  pointer-events: none;
  z-index: -1;
  white-space: nowrap;
  font-family: var(--font-display);
}

.ach-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(245, 158, 11, 0.1);
  color: var(--accent-amber);
  margin-bottom: 0.75rem;
  letter-spacing: 1px;
}

.ach-value {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 0.4rem;
}

.ach-title {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.ach-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* --- Interactive Terminal Modal Overlay --- */
.terminal-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
  padding: 1.5rem;
}

.terminal-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.terminal-window {
  width: 100%;
  max-width: 880px;
  height: 560px;
  background: var(--bg-terminal);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-md);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.9), var(--shadow-glow-amber);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

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

.terminal-window-header {
  background: var(--bg-terminal-header);
  padding: 0.65rem 1.25rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  user-select: none;
}

.terminal-window-title {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-align: center;
}

.terminal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  transition: color var(--transition-fast);
  line-height: 1;
}

.terminal-close-btn:hover {
  color: var(--text-primary);
}

.terminal-window-body {
  padding: 1.25rem;
  flex-grow: 1;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  white-space: pre-wrap;
}

.terminal-window-body::-webkit-scrollbar {
  width: 8px;
}
.terminal-window-body::-webkit-scrollbar-track {
  background: var(--bg-terminal);
}
.terminal-window-body::-webkit-scrollbar-thumb {
  background: #28334a;
  border-radius: 4px;
}

.terminal-history {
  flex-grow: 1;
  white-space: pre-wrap;
}

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

.terminal-input-prompt {
  color: var(--accent-amber);
  font-weight: 600;
  white-space: nowrap;
}

.terminal-input {
  flex-grow: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-primary);
}

/* Floating Terminal FAB */
.terminal-fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-terminal);
  color: var(--accent-amber);
  border: 1px solid var(--border-active);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 15px rgba(245, 158, 11, 0.4);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  animation: pulse-border 2s infinite;
}

@keyframes pulse-border {
  0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(245, 158, 11, 0); }
  100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

.terminal-fab:hover {
  transform: scale(1.1);
  background: var(--accent-amber);
  color: var(--bg-main);
}

/* --- Contact & Footer --- */
.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--accent-amber), var(--accent-cyan), var(--accent-emerald));
}

.contact-title {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.contact-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto 2rem;
}

.contact-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

.footer a:hover {
  color: var(--accent-amber);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-terminal);
  border: 1px solid var(--accent-emerald);
  color: var(--accent-emerald);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  box-shadow: var(--shadow-lg);
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.toast-container.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-10px);
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* --- Responsive Breakpoints --- */
@media (max-width: 1024px) {
  .hero-grid, .about-grid, .sim-grid, .planetarium-grid, .rl-lab-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .featured-grid, .skills-grid, .secondary-projects-grid, .achievements-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .featured-grid, .skills-grid, .secondary-projects-grid, .achievements-grid {
    grid-template-columns: 1fr;
  }

  .about-highlights {
    grid-template-columns: 1fr;
  }

  .timeline {
    padding-left: 1.5rem;
  }

  .timeline-marker {
    left: -1.5rem;
  }

  .distill-iframe-wrapper,
  .astara-iframe-wrapper,
  .dotboxes-iframe-wrapper {
    height: 560px;
  }
}