/* ============================================================
   YASHWANT LABS — WORLD CLASS AI PORTFOLIO CSS
   Theme: Deep Dark AI | Stripe/Vercel/OpenAI inspired
   Fonts: Space Grotesk · Inter · JetBrains Mono
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
  --bg: #020617;
  --bg-2: #0f172a;
  --bg-3: #1e293b;
  --primary: #6366f1;
  --primary-glow: rgba(99,102,241,0.25);
  --accent: #22d3ee;
  --accent-glow: rgba(34,211,238,0.2);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-faint: #475569;
  --border: rgba(99,102,241,0.15);
  --border-accent: rgba(34,211,238,0.2);
  --glass: rgba(15,23,42,0.7);
  --glass-2: rgba(30,41,59,0.6);
  --font-main: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --radius: 12px;
  --radius-lg: 20px;
  --section-pad: 120px 0;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ---- Screen-reader only (hidden SEO content) ---- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  overflow-x: hidden;
  line-height: 1.6;
  position: relative;
}

/* ---- AI Grid Background ---- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 0;
  pointer-events: none;
}

/* ---- Particles ---- */
#particles-js {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ---- Cursor Glow ---- */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,102,241,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease;
}

/* ---- Container ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* =========================================================
   NAVIGATION
   ========================================================= */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(2,6,23,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.logo-bracket { color: var(--primary); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 8px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
  transition: var(--transition);
  letter-spacing: 0.2px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(99,102,241,0.1);
}

.nav-right { display: flex; align-items: center; gap: 12px; }

.resume-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--primary);
  color: #fff;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.resume-btn:hover {
  background: #818cf8;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(99,102,241,0.35);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 16px 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 800;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 10px 24px;
  font-size: 0.95rem;
  transition: var(--transition);
}
.mobile-menu a:hover { color: var(--text); background: rgba(99,102,241,0.08); }

/* =========================================================
   FLASH ALERTS
   ========================================================= */
.alert {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  padding: 14px 28px;
  border-radius: 10px;
  color: #fff;
  font-weight: 600;
  z-index: 9999;
  display: none;
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
  font-family: var(--font-main);
}
.alert.success { background: #10b981; border-left: 4px solid #059669; }
.alert.error   { background: #ef4444; border-left: 4px solid #dc2626; }
.alert button  { margin-left: 12px; color: #fff; background: none; border: none; cursor: pointer; font-size: 16px; }

/* =========================================================
   SECTION COMMON
   ========================================================= */
section {
  padding: var(--section-pad);
  position: relative;
  z-index: 1;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  line-height: 1.15;
}

.section-title span { color: var(--primary); }

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin-bottom: 64px;
  line-height: 1.7;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   HERO SECTION
   ========================================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 0 60px;
  position: relative;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}

.hero-left { position: relative; }

.hero-greeter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.25);
  padding: 6px 14px;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 28px;
  animation: fadeUp 0.6s ease both;
}
.hero-greeter .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse 2s infinite;
}

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

.hero-name {
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.05;
  margin-bottom: 8px;
  letter-spacing: -1.5px;
  animation: fadeUp 0.7s ease 0.1s both;
}

.hero-role {
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 12px;
  animation: fadeUp 0.7s ease 0.2s both;
}

.hero-role span {
  color: var(--accent);
}

.hero-typed-wrapper {
  font-size: clamp(1rem, 1.8vw, 1.3rem);
  color: var(--text-muted);
  min-height: 50px;
  margin-bottom: 32px;
  animation: fadeUp 0.7s ease 0.3s both;
}
.hero-typed-wrapper #typing {
  color: var(--accent);
  font-family: var(--font-mono);
}

.hero-desc {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 480px;
  margin-bottom: 40px;
  animation: fadeUp 0.7s ease 0.4s both;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  animation: fadeUp 0.7s ease 0.5s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 13px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  letter-spacing: 0.2px;
}
.btn-primary:hover {
  background: #818cf8;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(99,102,241,0.4);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text);
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(34,211,238,0.05);
  transform: translateY(-2px);
}

/* Hero right – Terminal card */
.hero-terminal {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 60px rgba(99,102,241,0.1), 0 30px 60px rgba(0,0,0,0.4);
  animation: fadeUp 0.8s ease 0.3s both;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-3);
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}
.terminal-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.terminal-dot.red   { background: #ff5f56; }
.terminal-dot.yellow{ background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }
.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-left: 8px;
}

.terminal-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.9;
  min-height: 260px;
}

.t-line { display: flex; gap: 8px; margin-bottom: 4px; }
.t-prompt { color: var(--primary); }
.t-cmd    { color: var(--accent); }
.t-out    { color: var(--text-muted); padding-left: 16px; }
.t-success{ color: #22c55e; padding-left: 16px; }
.t-blank  { height: 8px; }

/* Typing cursor */
.hero-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
  margin-left: 1px;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-faint);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 1px;
  animation: fadeUp 1s ease 1s both;
}

.scroll-arrow {
  width: 24px; height: 24px;
  border-right: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  transform: rotate(45deg);
  animation: scrollBounce 1.5s infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50%       { transform: rotate(45deg) translateY(6px); }
}

/* Fade Up animation */
@keyframes fadeUp {
  from { opacity:0; transform: translateY(24px); }
  to   { opacity:1; transform: translateY(0); }
}

/* =========================================================
   ABOUT SECTION
   ========================================================= */
#about {
  background: linear-gradient(180deg, transparent 0%, rgba(15,23,42,0.5) 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
  align-items: start;
}

.about-image-wrap {
  position: relative;
}
.about-image-wrap img {
  width: 100%;
  border-radius: var(--radius-lg);
  display: block;
  border: 1px solid var(--border);
  filter: grayscale(10%);
  transition: var(--transition);
}
.about-image-wrap:hover img {
  filter: grayscale(0%);
  box-shadow: 0 0 40px rgba(99,102,241,0.2);
}
.about-image-badge {
  position: absolute;
  bottom: -18px;
  right: -18px;
  background: var(--primary);
  color: #fff;
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.4;
  box-shadow: 0 8px 24px rgba(99,102,241,0.4);
}
.about-image-badge span { display: block; font-size: 1.4rem; font-weight: 700; }

.about-text { color: var(--text-muted); }
.about-text p { margin-bottom: 20px; font-size: 1.02rem; line-height: 1.8; }
.about-text p strong { color: var(--text); }

/* Timeline */
.timeline { margin-top: 40px; position: relative; }
.timeline::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-left: 40px;
  margin-bottom: 28px;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.timeline-item.visible { opacity: 1; transform: translateX(0); }

.timeline-item::before {
  content: '';
  position: absolute;
  left: 0; top: 6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg);
  box-shadow: 0 0 10px var(--primary-glow);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.timeline-content h4 {
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.timeline-content p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }

/* =========================================================
   SKILLS SECTION
   ========================================================= */
#skills { background: transparent; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-category {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.skill-category::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.skill-category:hover::before { transform: scaleX(1); }
.skill-category:hover {
  border-color: rgba(99,102,241,0.35);
  box-shadow: 0 20px 40px rgba(99,102,241,0.1);
  transform: translateY(-4px);
}

.skill-cat-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}
.skill-cat-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tag {
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  color: var(--text-muted);
  padding: 5px 12px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  transition: var(--transition);
}
.skill-tag:hover {
  background: rgba(99,102,241,0.2);
  color: var(--text);
  border-color: var(--primary);
}

/* =========================================================
   PROJECT LAB
   ========================================================= */
#projects { background: linear-gradient(180deg, rgba(15,23,42,0.3) 0%, transparent 100%); }

.projects-lab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  border-color: rgba(99,102,241,0.4);
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(99,102,241,0.12);
}

.project-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.project-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.project-card:hover .project-img img { transform: scale(1.06); }

.project-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--primary);
  color: #fff;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.project-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.project-body p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}

.project-stack { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.project-stack span {
  background: rgba(34,211,238,0.08);
  border: 1px solid rgba(34,211,238,0.15);
  color: var(--accent);
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
}

.project-actions { display: flex; gap: 10px; }
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}
.project-link.outline {
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.project-link.outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(99,102,241,0.06);
}
.project-link.filled {
  background: var(--primary);
  color: #fff;
}
.project-link.filled:hover {
  background: #818cf8;
  box-shadow: 0 6px 16px rgba(99,102,241,0.4);
}

/* =========================================================
   INTERACTIVE TERMINAL SECTION
   ========================================================= */
#terminal { background: transparent; }

.terminal-section-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.terminal-info h2 { margin-bottom: 20px; }
.terminal-info p {
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
  font-size: 0.97rem;
}

.cmd-hints { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; }
.cmd-hint {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}
.cmd-hint code {
  background: rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.2);
  color: var(--primary);
  padding: 3px 10px;
  border-radius: 6px;
}

.terminal-interactive {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(0,0,0,0.4), 0 0 0 1px rgba(99,102,241,0.05);
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-3);
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
}
.term-dots { display: flex; gap: 6px; }
.term-dot {
  width: 12px; height: 12px; border-radius: 50%;
}
.term-dot.r { background: #ff5f56; }
.term-dot.y { background: #ffbd2e; }
.term-dot.g { background: #27c93f; }
.term-bar-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-faint);
}

#termOutput {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.9;
  min-height: 280px;
  max-height: 380px;
  overflow-y: auto;
  color: var(--text-muted);
}
#termOutput::-webkit-scrollbar { width: 4px; }
#termOutput::-webkit-scrollbar-track { background: transparent; }
#termOutput::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.term-out-prompt { color: var(--primary); }
.term-out-cmd    { color: var(--accent); }
.term-out-result { color: var(--text-muted); padding-left: 14px; }
.term-out-success{ color: #22c55e; padding-left: 14px; }
.term-out-error  { color: #f87171; padding-left: 14px; }

.term-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  background: var(--bg-3);
  border-top: 1px solid var(--border);
}
.term-prompt-sym {
  font-family: var(--font-mono);
  color: var(--primary);
  font-size: 0.85rem;
  user-select: none;
}
#termInput {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  caret-color: var(--accent);
}
#termInput::placeholder { color: var(--text-faint); }

/* =========================================================
   GITHUB STATS SECTION
   ========================================================= */
#github {
  background: linear-gradient(180deg, transparent 0%, rgba(15,23,42,0.5) 100%);
}

.github-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}
.stat-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px var(--primary-glow);
}

.stat-num {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -1px;
  font-family: var(--font-mono);
  display: block;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Contribution graph placeholder */
.gh-contrib-wrap {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(12px);
}
.gh-contrib-title {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-family: var(--font-mono);
}

.contrib-grid {
  display: grid;
  grid-template-columns: repeat(52, 1fr);
  gap: 2px;
  margin-bottom: 12px;
}
.contrib-cell {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: var(--bg-3);
  animation: contribFade 0.5s ease both;
}
.contrib-cell.l1 { background: rgba(99,102,241,0.2); }
.contrib-cell.l2 { background: rgba(99,102,241,0.45); }
.contrib-cell.l3 { background: rgba(99,102,241,0.7); }
.contrib-cell.l4 { background: var(--primary); box-shadow: 0 0 6px rgba(99,102,241,0.5); }

@keyframes contribFade {
  from { opacity: 0; transform: scale(0.5); }
  to   { opacity: 1; transform: scale(1); }
}

.contrib-legend {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
}
.legend-cell {
  width: 10px; height: 10px;
  border-radius: 2px;
}

/* Now Building */
.now-building {
  background: var(--glass);
  border: 1px solid rgba(34,211,238,0.2);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}
.now-building::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
}
.now-building-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.live-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.5s infinite;
}
.now-building h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.now-building p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 20px;
}
.progress-bar-wrap { margin-bottom: 6px; }
.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-faint);
  font-family: var(--font-mono);
  margin-bottom: 6px;
}
.progress-bar {
  height: 4px;
  background: var(--bg-3);
  border-radius: 4px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 1.5s ease;
}

/* =========================================================
   BUILDER MINDSET SECTION
   ========================================================= */
#mindset {
  background: radial-gradient(ellipse 80% 50% at 50% 50%, rgba(99,102,241,0.06) 0%, transparent 70%);
}

.mindset-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.mindset-quote {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  letter-spacing: -0.5px;
  position: relative;
  padding-left: 28px;
}
.mindset-quote::before {
  content: '"';
  position: absolute;
  left: 0; top: -8px;
  font-size: 4rem;
  color: var(--primary);
  line-height: 1;
  font-family: Georgia, serif;
}

.mindset-pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pillar-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}
.pillar-card:hover {
  border-color: var(--primary);
  background: rgba(99,102,241,0.07);
  transform: translateY(-3px);
}
.pillar-icon { font-size: 1.6rem; margin-bottom: 12px; }
.pillar-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.pillar-desc { font-size: 0.82rem; color: var(--text-muted); line-height: 1.6; }

/* =========================================================
   CONTACT SECTION
   ========================================================= */
#contact { background: transparent; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 64px;
  align-items: start;
}

.contact-left { }
.contact-left .impact-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.contact-left .impact-title span { color: var(--primary); }
.contact-left p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 32px;
}

.contact-links { display: flex; flex-direction: column; gap: 14px; margin-bottom: 36px; }
.contact-link-item {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
  padding: 4px 0;
}
.contact-link-item:hover { color: var(--text); }
.contact-link-icon {
  width: 40px; height: 40px;
  background: rgba(99,102,241,0.1);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 0.95rem;
  transition: var(--transition);
  flex-shrink: 0;
}
.contact-link-item:hover .contact-link-icon {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 8px 20px rgba(99,102,241,0.4);
}

.social-row { display: flex; gap: 12px; }
.social-btn {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--glass);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  text-decoration: none;
  transition: var(--transition);
}
.social-btn:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(99,102,241,0.4);
}

/* Contact Form */
.contact-form {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(12px);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 7px;
  letter-spacing: 0.5px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  background: rgba(2,6,23,0.6);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--font-main);
  font-size: 0.92rem;
  transition: var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.form-group textarea { min-height: 140px; resize: vertical; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-faint); }

.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 0.96rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
  letter-spacing: 0.3px;
}
.form-submit:hover {
  background: #818cf8;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(99,102,241,0.4);
}

/* =========================================================
   FOOTER
   ========================================================= */
footer {
  background: rgba(2,6,23,0.95);
  border-top: 1px solid var(--border);
  padding: 0;
  position: relative;
  z-index: 10;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

footer .logo { font-family: var(--font-mono); font-size: 1.4rem; font-weight: 700; color: var(--text); text-decoration: none; display: block; text-align: center; }
.footer-tagline { color: var(--text-faint); font-size: 0.82rem; margin-top: 6px; text-align: center; }

.footer-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 5px 10px;
  border-radius: 6px;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--text); background: rgba(99,102,241,0.08); }

.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--glass-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  text-decoration: none;
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
}

.copyright { color: var(--text-faint); font-size: 0.78rem; text-align: center; }
.heart { color: #ef4444; }

/* =========================================================
   AI CHATBOT WIDGET
   ========================================================= */
.chatbot-fab {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 58px;
  height: 58px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 10000;
  box-shadow: 0 8px 28px rgba(99,102,241,0.5);
  transition: var(--transition);
}
.chatbot-fab:hover {
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 14px 40px rgba(99,102,241,0.6);
}
.chatbot-badge {
  position: absolute;
  top: -4px; right: -4px;
  background: var(--accent);
  color: var(--bg);
  font-size: 0.55rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 2px 5px;
  border-radius: 100px;
}

.chatbot-panel {
  position: fixed;
  bottom: 96px;
  right: 28px;
  width: 360px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(99,102,241,0.1);
  z-index: 9999;
  display: none;
  flex-direction: column;
  overflow: hidden;
  backdrop-filter: blur(20px);
}
.chatbot-panel.open { display: flex; animation: panelSlide 0.3s ease; }
@keyframes panelSlide {
  from { opacity: 0; transform: scale(0.95) translateY(10px); transform-origin: bottom right; }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.chatbot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(124,58,237,0.15));
  border-bottom: 1px solid var(--border);
}
.chatbot-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}
.chatbot-title span { margin-left: 2px; }
.chatbot-title i { color: var(--primary); display: none; }
.yavis-avatar-fab {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.yavis-avatar-panel {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}
.chatbot-status { font-size: 0.7rem; color: #22c55e; font-family: var(--font-mono); }
.chatbot-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
  transition: var(--transition);
  padding: 4px;
}
.chatbot-close:hover { color: var(--text); }

.chatbot-messages {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 320px;
  min-height: 180px;
}
.chatbot-messages::-webkit-scrollbar { width: 4px; }
.chatbot-messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.chat-msg {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 0.84rem;
  line-height: 1.6;
  max-width: 85%;
}
.chat-msg.bot {
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.15);
  color: var(--text-muted);
  align-self: flex-start;
  border-radius: 4px 12px 12px 12px;
}
.chat-msg.user {
  background: var(--primary);
  color: #fff;
  align-self: flex-end;
  border-radius: 12px 4px 12px 12px;
}
.chat-typing {
  display: flex;
  gap: 4px;
  align-items: center;
  padding: 10px 14px;
  background: rgba(99,102,241,0.08);
  border: 1px solid rgba(99,102,241,0.12);
  border-radius: 4px 12px 12px 12px;
  align-self: flex-start;
  width: fit-content;
}
.typing-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--primary);
  animation: typingBounce 1.2s infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30%            { transform: translateY(-6px); opacity: 1; }
}

.chatbot-input-row {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-3);
}
#chatbotInput {
  flex: 1;
  background: rgba(2,6,23,0.6);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 13px;
  color: var(--text);
  font-family: var(--font-main);
  font-size: 0.85rem;
  outline: none;
  transition: var(--transition);
}
#chatbotInput:focus { border-color: var(--primary); }
#chatbotInput::placeholder { color: var(--text-faint); }
#chatbotSend {
  width: 36px; height: 36px;
  background: var(--primary);
  border: none;
  border-radius: 8px;
  color: #fff;
  cursor: pointer;
  font-size: 0.85rem;
  transition: var(--transition);
}
#chatbotSend:hover { background: #818cf8; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .hero-inner      { grid-template-columns: 1fr; }
  .hero-terminal   { display: none; }
  .about-grid      { grid-template-columns: 1fr; }
  .about-image-wrap{ max-width: 360px; }
  .skills-grid     { grid-template-columns: 1fr 1fr; }
  .terminal-section-wrap { grid-template-columns: 1fr; }
  .github-grid     { grid-template-columns: 1fr; }
  .mindset-inner   { grid-template-columns: 1fr; }
  .contact-grid    { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root { --section-pad: 80px 0; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .skills-grid     { grid-template-columns: 1fr; }
  .projects-lab-grid { grid-template-columns: 1fr; }
  .stats-row       { grid-template-columns: 1fr; }
  .mindset-pillars { grid-template-columns: 1fr; }
  .form-row        { grid-template-columns: 1fr; }
  .chatbot-panel   { width: calc(100vw - 32px); right: 16px; }
  .hero-name       { font-size: 2.4rem; }
  .contrib-grid    { display: none; }
}