/* ============================================
   ARIVAZHAGAN S — JARVIS-GRADE AI PORTFOLIO
   Theme: Holographic HUD · Amber + Cyan · Iron Man
   ============================================ */

:root {
  --bg-deep: #02050D;
  --bg-base: #060B1A;
  --bg-card: rgba(10, 18, 36, 0.65);
  --bg-elevated: rgba(15, 25, 48, 0.75);
  --border: rgba(255, 184, 0, 0.18);
  --border-strong: rgba(255, 184, 0, 0.32);
  --border-cyan: rgba(0, 229, 255, 0.25);

  --text-primary: #E8F4FF;
  --text-secondary: #9FB4D1;
  --text-muted: #5A7090;

  --gold: #FFB800;
  --gold-bright: #FFD24A;
  --gold-dim: #B8800F;
  --amber: #FF9500;
  --cyan: #00E5FF;
  --cyan-bright: #7DF9FF;
  --cyan-dim: #008FA8;
  --red: #FF3B3B;
  --green: #00FF9D;

  --gradient-jarvis: linear-gradient(135deg, #FFB800 0%, #FF6B00 50%, #00E5FF 100%);
  --gradient-gold: linear-gradient(135deg, #FFD24A 0%, #FFB800 50%, #FF8800 100%);
  --gradient-cyan: linear-gradient(135deg, #00E5FF 0%, #0091FF 100%);

  --glow-gold: 0 0 30px rgba(255, 184, 0, 0.45), 0 0 60px rgba(255, 184, 0, 0.2);
  --glow-cyan: 0 0 30px rgba(0, 229, 255, 0.45), 0 0 60px rgba(0, 229, 255, 0.2);

  --font-sans: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;

  --container: 1240px;
  --radius: 14px;
  --radius-lg: 20px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ============== ANIMATED BACKGROUND ============== */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 1;
  mix-blend-mode: screen;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(900px 600px at 15% 15%, rgba(255, 184, 0, 0.14), transparent 60%),
    radial-gradient(800px 700px at 85% 85%, rgba(0, 229, 255, 0.14), transparent 60%),
    radial-gradient(1000px 600px at 50% 50%, rgba(255, 107, 0, 0.05), transparent 70%);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(255, 184, 0, 0.014) 0px,
    rgba(255, 184, 0, 0.014) 1px,
    transparent 1px,
    transparent 4px
  );
  opacity: 0.16;
}

main, section, nav, footer { position: relative; z-index: 3; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============== NAVBAR ============== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  background: rgba(2, 5, 13, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}
.navbar.scrolled {
  padding: 12px 0;
  border-bottom-color: var(--border);
  background: rgba(2, 5, 13, 0.9);
  box-shadow: 0 1px 20px rgba(255, 184, 0, 0.08);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 22px;
  text-decoration: none;
  color: var(--text-primary);
  letter-spacing: 1px;
  text-shadow: 0 0 12px rgba(255, 184, 0, 0.4);
}
.logo-bracket {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 6px;
  align-items: center;
}
.nav-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 4px;
  transition: all 0.25s ease;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.nav-links a:hover {
  color: var(--gold);
  background: rgba(255, 184, 0, 0.08);
  text-shadow: 0 0 10px rgba(255, 184, 0, 0.6);
}
.nav-links a.active {
  background: var(--gradient-gold);
  color: #0a0a0a !important;
  font-weight: 700;
  text-shadow: none;
  box-shadow: 0 4px 14px rgba(255, 184, 0, 0.35);
}
.nav-links a.active:hover {
  background: var(--gradient-gold);
  color: #0a0a0a !important;
  box-shadow: var(--glow-gold);
}

.hamburger {
  display: none;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 10px;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
}
.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  box-shadow: 0 0 6px rgba(255, 184, 0, 0.6);
}

/* ============== HERO ============== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 110px 24px 60px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 184, 0, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 184, 0, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, #000 30%, transparent 80%);
  z-index: 1;
}

@keyframes rotate {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.hero-content {
  max-width: 920px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border: 1px solid rgba(0, 255, 157, 0.35);
  background: rgba(0, 255, 157, 0.06);
  border-radius: 4px;
  font-size: 12px;
  color: var(--green);
  font-weight: 600;
  margin-bottom: 28px;
  font-family: var(--font-mono);
  letter-spacing: 2px;
  text-transform: uppercase;
  animation: fadeInDown 0.8s ease both;
  box-shadow: 0 0 20px rgba(0, 255, 157, 0.15), inset 0 0 20px rgba(0, 255, 157, 0.05);
}
.status-dot {
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--green);
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 255, 157, 0.7), 0 0 12px var(--green); }
  70% { box-shadow: 0 0 0 14px rgba(0, 255, 157, 0), 0 0 12px var(--green); }
}

.hero-title {
  font-size: clamp(40px, 7vw, 92px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s 0.2s ease both;
}
.hero-greeting {
  display: block;
  font-size: 0.45em;
  color: var(--text-secondary);
  font-weight: 500;
  font-family: var(--font-mono);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero-greeting::before { content: '> '; color: var(--gold); }

.gradient-text {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  background-size: 200% 200%;
  animation: gradientShift 6s ease infinite;
  filter: drop-shadow(0 0 25px rgba(255, 184, 0, 0.35));
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.2vw, 26px);
  font-weight: 600;
  color: var(--cyan);
  margin-bottom: 28px;
  min-height: 1.5em;
  animation: fadeInUp 0.8s 0.4s ease both;
  text-shadow: 0 0 14px rgba(0, 229, 255, 0.5);
  letter-spacing: 1px;
}
.cursor {
  color: var(--gold);
  text-shadow: 0 0 12px rgba(255, 184, 0, 0.7);
  animation: blink 1s infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-description {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 44px;
  animation: fadeInUp 0.8s 0.6s ease both;
}
.hero-description strong {
  color: var(--gold);
  font-weight: 600;
  text-shadow: 0 0 10px rgba(255, 184, 0, 0.4);
}
.hero-description em {
  color: var(--cyan);
  font-style: normal;
  font-weight: 600;
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

.hero-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  margin-bottom: 44px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s 0.8s ease both;
}
.stat { text-align: center; padding: 0 8px; }
.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 15px rgba(255, 184, 0, 0.4));
}
.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--text-muted);
  margin-top: 4px;
  font-family: var(--font-mono);
}
.stat-divider {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, transparent, var(--gold), transparent);
  opacity: 0.5;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 36px;
  animation: fadeInUp 0.8s 1s ease both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.btn-primary {
  background: var(--gradient-gold);
  color: #0a0a0a;
  box-shadow: 0 6px 20px rgba(255, 184, 0, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 184, 0, 0.5), var(--glow-gold);
}
.btn-secondary {
  background: rgba(0, 229, 255, 0.06);
  color: var(--cyan);
  border: 1px solid var(--border-cyan);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
}
.btn-secondary:hover {
  background: rgba(0, 229, 255, 0.12);
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  padding: 10px 20px;
  letter-spacing: 1.5px;
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(255, 184, 0, 0.05);
  transform: translateY(-1px);
}

.btn-resume {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--gold), var(--cyan));
  color: #0a0a0a;
  box-shadow: 0 6px 20px rgba(0, 229, 255, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}
.btn-resume::before {
  content: "";
  position: absolute;
  top: 0;
  left: -120%;
  width: 80%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}
.btn-resume:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 229, 255, 0.5), var(--glow-cyan);
}
.btn-resume:hover::before {
  left: 130%;
}
.btn-resume i {
  animation: bobDown 1.6s ease-in-out infinite;
}
@keyframes bobDown {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(3px); }
}

.nav-resume {
  background: var(--gradient-gold);
  color: #0a0a0a !important;
  font-weight: 700 !important;
  border-radius: 20px !important;
  box-shadow: 0 4px 14px rgba(255, 184, 0, 0.35);
}
.nav-resume:hover {
  color: #0a0a0a !important;
  box-shadow: var(--glow-gold);
  text-shadow: none !important;
}
.nav-resume i {
  margin-right: 4px;
}

.hero-socials {
  display: flex;
  justify-content: center;
  gap: 12px;
  animation: fadeInUp 0.8s 1.2s ease both;
}
.hero-socials a {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: rgba(255, 184, 0, 0.04);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.25s ease;
}
.hero-socials a:hover {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(255, 184, 0, 0.1);
  transform: translateY(-3px);
  box-shadow: var(--glow-gold);
}

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-line::after {
  content: '';
  position: absolute;
  top: -10px; left: 0;
  width: 1px; height: 10px;
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold);
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { top: -10px; }
  100% { top: 50px; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============== SECTION COMMON ============== */
.section { padding: 64px 0; position: relative; }
.section-alt {
  background: linear-gradient(180deg, transparent 0%, rgba(10, 18, 36, 0.5) 50%, transparent 100%);
}

.section-head { text-align: center; margin-bottom: 40px; }
.section-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 4px;
  margin-bottom: 12px;
  text-shadow: 0 0 10px rgba(255, 184, 0, 0.4);
}
.section-num::before { content: '// '; opacity: 0.6; }
.section-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  text-shadow: 0 0 30px rgba(255, 184, 0, 0.15);
}
.section-sub {
  color: var(--text-secondary);
  font-size: 16px;
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
}

.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============== ABOUT ============== */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

.code-window {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), inset 0 0 30px rgba(255, 184, 0, 0.03);
  transition: all 0.3s ease;
}
.code-window:hover {
  border-color: rgba(255, 184, 0, 0.4);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(255, 184, 0, 0.15);
}
.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: rgba(0, 0, 0, 0.4);
  border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; box-shadow: 0 0 6px currentColor; }
.dot.red { background: #ff5f57; color: #ff5f57; }
.dot.yellow { background: var(--gold); color: var(--gold); }
.dot.green { background: var(--green); color: var(--green); }
.code-title {
  margin-left: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
}
.code-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
  overflow-x: auto;
}
.code-body .kw { color: var(--gold); text-shadow: 0 0 8px rgba(255, 184, 0, 0.4); }
.code-body .cls { color: var(--cyan); text-shadow: 0 0 8px rgba(0, 229, 255, 0.4); }
.code-body .str { color: var(--green); }
.code-body .fn { color: #FF8C42; }

.about-heading {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.25;
}
.about-info p { color: var(--text-secondary); margin-bottom: 16px; font-size: 16px; }
.about-info strong { color: var(--gold); font-weight: 600; }

.about-meta { list-style: none; margin: 28px 0; display: grid; gap: 12px; }
.about-meta li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 14px;
  font-family: var(--font-mono);
  letter-spacing: 0.3px;
}
.about-meta i {
  color: var(--gold);
  width: 20px;
  text-shadow: 0 0 8px rgba(255, 184, 0, 0.5);
}

.about-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

/* ============== SKILLS ============== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.skill-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.5;
}
.skill-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(255, 184, 0, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}
.skill-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 184, 0, 0.5);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(255, 184, 0, 0.15);
}
.skill-card:hover::after { opacity: 1; }

.skill-icon {
  width: 52px; height: 52px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(255, 184, 0, 0.15), rgba(255, 107, 0, 0.1));
  border: 1px solid rgba(255, 184, 0, 0.35);
  display: grid;
  place-items: center;
  font-size: 22px;
  color: var(--gold);
  margin-bottom: 20px;
  text-shadow: 0 0 12px rgba(255, 184, 0, 0.5);
  box-shadow: inset 0 0 20px rgba(255, 184, 0, 0.1);
}
.skill-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 16px; letter-spacing: 0.5px; }
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tags span {
  padding: 5px 11px;
  border-radius: 4px;
  background: rgba(255, 184, 0, 0.05);
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  letter-spacing: 0.3px;
  transition: all 0.2s ease;
}
.skill-tags span:hover {
  background: rgba(255, 184, 0, 0.12);
  border-color: var(--gold);
  color: var(--gold);
  text-shadow: 0 0 8px rgba(255, 184, 0, 0.4);
}
.skill-ai .skill-icon {
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(0, 145, 255, 0.15));
  border-color: rgba(0, 229, 255, 0.4);
  color: var(--cyan);
  text-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
}

/* ============== AI CARDS ============== */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.ai-card {
  position: relative;
  background: linear-gradient(180deg, var(--bg-card), rgba(10, 18, 36, 0.4));
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  overflow: hidden;
  transition: all 0.4s ease;
}
.ai-card-glow {
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at center, rgba(255, 184, 0, 0.18), transparent 40%);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}
.ai-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 184, 0, 0.5);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.6), 0 0 40px rgba(255, 184, 0, 0.2);
}
.ai-card:hover .ai-card-glow { opacity: 1; }

.ai-num {
  position: absolute;
  top: 24px; right: 28px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 3px;
  opacity: 0.7;
  text-shadow: 0 0 8px rgba(255, 184, 0, 0.4);
}
.ai-icon {
  width: 60px; height: 60px;
  border-radius: 12px;
  background: var(--gradient-gold);
  display: grid;
  place-items: center;
  font-size: 26px;
  color: #0a0a0a;
  margin-bottom: 22px;
  box-shadow: 0 10px 30px rgba(255, 184, 0, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.2);
  position: relative;
  z-index: 2;
}
.ai-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 14px; position: relative; z-index: 2; letter-spacing: 0.3px; }
.ai-card p { color: var(--text-secondary); font-size: 15px; line-height: 1.7; margin-bottom: 20px; position: relative; z-index: 2; }
.ai-card p strong { color: var(--gold); font-weight: 600; }
.ai-card p em { color: var(--cyan); font-style: normal; font-weight: 500; }

.ai-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 4px;
  background: rgba(255, 184, 0, 0.08);
  border: 1px solid rgba(255, 184, 0, 0.35);
  font-size: 11px;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 1.5px;
  color: var(--gold);
  text-transform: uppercase;
  position: relative;
  z-index: 2;
  text-shadow: 0 0 8px rgba(255, 184, 0, 0.4);
}

/* ============== EDUCATION ============== */
.edu-timeline { max-width: 880px; margin: 0 auto; display: grid; gap: 24px; }

.edu-item { display: grid; grid-template-columns: 100px 1fr; gap: 24px; align-items: stretch; }
.edu-year {
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 12px rgba(255, 184, 0, 0.4));
}
.edu-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 24px 28px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s ease;
}
.edu-card:hover {
  transform: translateX(8px);
  border-color: rgba(255, 184, 0, 0.5);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 25px rgba(255, 184, 0, 0.12);
}
.edu-icon {
  width: 52px; height: 52px;
  border-radius: 8px;
  background: rgba(255, 184, 0, 0.1);
  border: 1px solid rgba(255, 184, 0, 0.35);
  display: grid;
  place-items: center;
  font-size: 22px;
  color: var(--gold);
  text-shadow: 0 0 10px rgba(255, 184, 0, 0.5);
}
.edu-info h3 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.edu-school { font-size: 13px; color: var(--text-secondary); font-family: var(--font-mono); }
.edu-score {
  text-align: center;
  padding: 10px 18px;
  border-radius: 6px;
  background: linear-gradient(135deg, rgba(255, 184, 0, 0.15), rgba(0, 229, 255, 0.1));
  border: 1px solid rgba(255, 184, 0, 0.35);
}
.score-label {
  display: block;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 2px;
  font-family: var(--font-mono);
}
.score-value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--gold);
  text-shadow: 0 0 10px rgba(255, 184, 0, 0.5);
}

/* ============== EXPERIENCE ============== */
.exp-timeline { max-width: 980px; margin: 0 auto; position: relative; }
.exp-item { display: grid; grid-template-columns: 50px 1fr; gap: 24px; margin-bottom: 56px; }
.exp-marker { position: relative; display: flex; flex-direction: column; align-items: center; }
.marker-dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--gradient-gold);
  border: 3px solid var(--bg-deep);
  box-shadow: 0 0 0 2px var(--gold), 0 0 20px rgba(255, 184, 0, 0.6);
  flex-shrink: 0;
  margin-top: 6px;
  animation: markerPulse 2.5s infinite;
}
@keyframes markerPulse {
  0%, 100% { box-shadow: 0 0 0 2px var(--gold), 0 0 20px rgba(255, 184, 0, 0.6); }
  50% { box-shadow: 0 0 0 2px var(--gold), 0 0 35px rgba(255, 184, 0, 0.9); }
}
.marker-line {
  width: 2px;
  flex: 1;
  background: linear-gradient(to bottom, var(--gold), transparent);
  margin-top: 8px;
  opacity: 0.5;
}
.exp-item:last-child .marker-line { display: none; }

.exp-content {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
  position: relative;
}
.exp-content::before {
  content: '';
  position: absolute;
  top: 20px; left: -32px;
  width: 32px; height: 1px;
  background: linear-gradient(to right, transparent, var(--gold));
  opacity: 0.5;
}
.exp-content:hover {
  border-color: rgba(255, 184, 0, 0.4);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4), 0 0 30px rgba(255, 184, 0, 0.1);
}

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.exp-period {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  margin-bottom: 8px;
  letter-spacing: 2px;
  text-shadow: 0 0 8px rgba(255, 184, 0, 0.3);
}
.exp-company { font-size: 24px; font-weight: 700; margin-bottom: 4px; letter-spacing: 0.3px; }
.exp-role { color: var(--text-secondary); font-size: 14px; font-family: var(--font-mono); }
.exp-tag-group { display: flex; gap: 8px; flex-wrap: wrap; }
.exp-tag {
  padding: 5px 12px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 700;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  background: rgba(255, 184, 0, 0.06);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.exp-tag.tag-current {
  background: rgba(0, 255, 157, 0.1);
  border-color: rgba(0, 255, 157, 0.4);
  color: var(--green);
  text-shadow: 0 0 8px rgba(0, 255, 157, 0.4);
}

.exp-meta { display: grid; gap: 14px; margin-bottom: 28px; }
.meta-row { display: grid; grid-template-columns: 130px 1fr; gap: 16px; align-items: start; }
.meta-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-family: var(--font-mono);
}
.meta-label i { color: var(--gold); font-size: 13px; }
.meta-value {
  color: var(--text-primary);
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
}
.client-pill {
  padding: 4px 12px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  font-family: var(--font-mono);
}
.client-pill.citi { background: rgba(238, 28, 37, 0.15); color: #ff7a7a; border: 1px solid rgba(238, 28, 37, 0.4); }
.client-pill.zurich { background: rgba(59, 130, 246, 0.15); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.4); }
.client-pill.ubs { background: rgba(220, 38, 38, 0.15); color: #ff7a7a; border: 1px solid rgba(220, 38, 38, 0.4); }
.client-pill.chubb { background: rgba(255, 184, 0, 0.15); color: var(--gold); border: 1px solid rgba(255, 184, 0, 0.4); }
.client-pill.penske { background: rgba(255, 204, 0, 0.15); color: #fde68a; border: 1px solid rgba(255, 204, 0, 0.4); }
.client-pill.germany { background: rgba(15, 23, 42, 0.6); color: var(--text-secondary); border: 1px solid var(--border-strong); }

.exp-resp { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; }
.resp-block h4 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gold);
  margin-bottom: 12px;
  margin-top: 18px;
  font-family: var(--font-mono);
  text-shadow: 0 0 8px rgba(255, 184, 0, 0.3);
}
.resp-block h4:first-child { margin-top: 0; }
.resp-block ul { list-style: none; display: grid; gap: 8px; }
.resp-block li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 18px;
  position: relative;
  line-height: 1.65;
}
.resp-block li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--gold);
  font-weight: 700;
  text-shadow: 0 0 6px rgba(255, 184, 0, 0.5);
}
.resp-block strong { color: var(--gold); font-weight: 600; }

/* ============== CONTACT ============== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.contact-card {
  position: relative;
  display: block;
  padding: 32px 28px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  overflow: hidden;
}
.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-gold);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
}
.contact-card:hover {
  transform: translateY(-6px);
  border-color: var(--gold);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(255, 184, 0, 0.2);
}
.contact-card:hover::before { opacity: 0.06; }
.contact-card > * { position: relative; z-index: 1; }

.contact-icon {
  width: 52px; height: 52px;
  border-radius: 8px;
  background: rgba(255, 184, 0, 0.1);
  border: 1px solid rgba(255, 184, 0, 0.35);
  display: grid;
  place-items: center;
  font-size: 22px;
  color: var(--gold);
  margin-bottom: 18px;
  text-shadow: 0 0 12px rgba(255, 184, 0, 0.5);
}
.contact-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; letter-spacing: 0.5px; }
.contact-card p { font-size: 13px; color: var(--text-secondary); word-break: break-all; font-family: var(--font-mono); }
.contact-arrow {
  position: absolute;
  top: 28px; right: 28px;
  color: var(--text-muted);
  transition: all 0.3s ease;
}
.contact-card:hover .contact-arrow {
  color: var(--gold);
  transform: translate(4px, -4px);
  text-shadow: 0 0 10px rgba(255, 184, 0, 0.6);
}

/* ============== FOOTER ============== */
.footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 20px;
  background: var(--bg-base);
  position: relative;
}
.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 200px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  box-shadow: 0 0 20px rgba(255, 184, 0, 0.5);
}
.footer-inner { text-align: center; }
.footer-brand { margin-bottom: 12px; }
.footer-brand .logo { display: none; }
.footer-brand p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 0;
  font-family: var(--font-mono);
  letter-spacing: 0.5px;
}
.footer-quote {
  font-style: italic;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 12px;
  font-size: 13px;
}
.footer-copy { font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); letter-spacing: 1px; }
.footer-copy i { color: var(--gold); }

/* ============== BACK TO TOP ============== */
.back-to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 48px; height: 48px;
  border-radius: 8px;
  background: var(--gradient-gold);
  border: none;
  color: #0a0a0a;
  font-size: 18px;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(255, 184, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  z-index: 90;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(255, 184, 0, 0.7), var(--glow-gold);
}

/* ============== RESPONSIVE ============== */
@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    top: 70px; right: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: rgba(2, 5, 13, 0.98);
    backdrop-filter: blur(20px);
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    min-width: 220px;
    transform: translateX(120%);
    transition: transform 0.3s ease;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  }
  .nav-links.open { transform: translateX(0); }
  .hamburger { display: flex; }

  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .edu-item { grid-template-columns: 70px 1fr; gap: 16px; }
  .edu-card { grid-template-columns: auto 1fr; padding: 18px; gap: 16px; }
  .edu-score { grid-column: 1 / -1; }
  .exp-item { grid-template-columns: 30px 1fr; gap: 14px; }
  .exp-content { padding: 22px; }
  .exp-content::before { display: none; }
  .meta-row { grid-template-columns: 1fr; gap: 6px; }
  .stat-divider { display: none; }
  .hero-stats { gap: 24px; }
  .hero-grid::before { width: 480px; height: 480px; }
  .hero-grid::after { width: 700px; height: 700px; }
}

@media (max-width: 560px) {
  .section { padding: 48px 0; }
  .hero { padding: 100px 16px 50px; }
  .container { padding: 0 16px; }
  .ai-card, .skill-card { padding: 24px 22px; }
  .code-body { font-size: 12px; padding: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ============================================================
   ✨ JARVIS HUD ENHANCEMENTS
   ============================================================ */

/* ---------- Scroll progress beam ---------- */
.scroll-beam {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold) 0%, var(--gold-bright) 40%, var(--cyan) 100%);
  box-shadow: 0 0 12px rgba(255, 184, 0, 0.7), 0 0 22px rgba(0, 229, 255, 0.5);
  z-index: 9999;
  transition: width 0.08s linear;
  pointer-events: none;
}

/* ---------- Live HUD widget ---------- */
.hud-widget {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 90;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.4px;
  padding: 10px 14px;
  background: rgba(2, 5, 13, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-secondary);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.55), inset 0 0 30px rgba(255, 184, 0, 0.04);
  min-width: 178px;
  pointer-events: none;
  user-select: none;
  opacity: 0;
  transform: translateY(8px);
  animation: hudFadeIn 0.6s ease 0.8s forwards;
}
@keyframes hudFadeIn {
  to { opacity: 1; transform: translateY(0); }
}
.hud-widget::before {
  content: '';
  position: absolute;
  top: -1px; left: 12px;
  width: 18px; height: 2px;
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold);
}
.hud-row {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 2px 0;
}
.hud-key { color: var(--gold); font-weight: 700; }
.hud-val { color: var(--text-primary); }
.hud-online {
  color: var(--green);
  animation: pulseGreen 2s ease-in-out infinite;
}
@keyframes pulseGreen {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}
@media (max-width: 700px) {
  .hud-widget { display: none; }
}

/* ---------- 3D tilt cards ---------- */
.tilt {
  transform-style: preserve-3d;
  transition: transform 0.18s ease, box-shadow 0.3s ease;
  will-change: transform;
  position: relative;
}
.tilt::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%),
              rgba(255, 184, 0, 0.10), transparent 55%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.tilt:hover::after { opacity: 1; }

/* ---------- Magnetic buttons ---------- */
.btn, .back-to-top {
  transition: transform 0.18s ease, box-shadow 0.25s ease, background 0.25s ease;
}

/* ---------- Hero spotlight ---------- */
#hero {
  --sx: 50%;
  --sy: 50%;
}
#hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(420px circle at var(--sx) var(--sy),
              rgba(255, 184, 0, 0.10), transparent 60%);
  pointer-events: none;
  z-index: 1;
  transition: background 0.1s linear;
}
#hero .hero-content { position: relative; z-index: 2; }

/* ---------- Glitch hero title ---------- */
.glitch {
  position: relative;
  display: inline-block;
}
.glitch::before, .glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  background: inherit;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0;
  pointer-events: none;
}
.glitch:hover::before {
  opacity: 0.85;
  animation: glitchA 0.4s steps(2, end) infinite;
  text-shadow: 2px 0 var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
}
.glitch:hover::after {
  opacity: 0.85;
  animation: glitchB 0.45s steps(2, end) infinite;
  text-shadow: -2px 0 var(--gold);
  clip-path: polygon(0 55%, 100% 55%, 100% 100%, 0 100%);
}
@keyframes glitchA {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(-2px, 1px); }
  50% { transform: translate(2px, -1px); }
  75% { transform: translate(-1px, 2px); }
}
@keyframes glitchB {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(2px, -1px); }
  50% { transform: translate(-2px, 1px); }
  75% { transform: translate(1px, -2px); }
}

/* ---------- AGENT MODE easter egg ---------- */
body.agent-mode {
  animation: agentFlash 0.9s ease;
}
@keyframes agentFlash {
  0% { filter: brightness(1) saturate(1); }
  20% { filter: brightness(1.6) saturate(1.6) hue-rotate(-10deg); }
  100% { filter: brightness(1) saturate(1); }
}
body.agent-mode #bg-canvas {
  filter: brightness(1.3) saturate(1.4);
  transition: filter 0.6s ease;
}

.agent-toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.85);
  z-index: 10000;
  padding: 24px 36px;
  background: linear-gradient(135deg, rgba(2, 5, 13, 0.96), rgba(15, 25, 48, 0.96));
  border: 1px solid var(--gold);
  border-radius: 14px;
  box-shadow: 0 0 0 1px rgba(255, 184, 0, 0.3),
              0 0 60px rgba(255, 184, 0, 0.5),
              0 30px 80px rgba(0, 0, 0, 0.7),
              inset 0 0 40px rgba(255, 184, 0, 0.08);
  text-align: center;
  font-family: var(--font-mono);
  opacity: 0;
  transition: opacity 0.45s ease, transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.agent-toast.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.agent-toast-line {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 4px;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px rgba(255, 184, 0, 0.6);
  margin-bottom: 6px;
}
.agent-toast-sub {
  font-size: 11px;
  letter-spacing: 2.5px;
  color: var(--cyan);
  text-transform: uppercase;
}