/* ── Custom Properties ── */
:root {
  --bg-primary: #0A0A0F;
  --bg-secondary: #0F0F1A;
  --bg-card: rgba(255, 255, 255, 0.04);
  --accent: #00D4FF;
  --accent-glow: rgba(0, 212, 255, 0.15);
  --accent-dim: rgba(0, 212, 255, 0.6);
  --text-primary: #FFFFFF;
  --text-secondary: #94A3B8;
  --border: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(0, 212, 255, 0.3);
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: 0.3s ease;
  --radius: 12px;
  --radius-lg: 20px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ── Navigation ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0.875rem 0;
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.nav-links {
  display: flex;
  gap: 2.5rem;
}
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 0.25rem;
}

/* ── Watermark ── */
.watermark {
  position: fixed;
  bottom: 16px; right: 16px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
  background: rgba(0, 0, 0, 0.35);
  padding: 4px 12px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
  z-index: 9999;
  transition: opacity var(--transition);
  font-family: var(--font-body);
}
.watermark:hover { opacity: 0.9; }

/* ── Section Base ── */
section {
  padding: 6rem 0;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 3.5rem;
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(0,212,255,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding-top: 6rem;
  padding-bottom: 4rem;
}
.hero-content { z-index: 1; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  padding: 0.35rem 0.9rem;
  border-radius: 20px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}
.badge-dot {
  width: 7px; height: 7px;
  background: #22C55E;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-greeting {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}
.hero-name {
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  padding-bottom: 0.1em;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #fff 60%, var(--accent-dim));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-typing-wrapper {
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  font-weight: 600;
  color: var(--accent);
  height: 2.2rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 2px;
}
.typing-cursor {
  animation: blink 1s infinite;
  font-weight: 300;
  color: var(--accent);
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

.hero-bio {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #000;
}
.btn-primary:hover {
  background: #1de0ff;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0,212,255,0.35);
}
.btn-outline {
  border: 1px solid var(--border-accent);
  color: var(--accent);
  background: transparent;
}
.btn-outline:hover {
  background: var(--accent-glow);
  transform: translateY(-2px);
}

.hero-socials {
  display: flex;
  gap: 1.25rem;
}
.hero-socials a {
  font-size: 1.2rem;
  color: var(--text-secondary);
  transition: color var(--transition), transform var(--transition);
}
.hero-socials a:hover {
  color: var(--accent);
  transform: translateY(-3px);
}

/* Orb */
.hero-orb-wrapper {
  position: relative;
  width: 100%;
  height: 500px;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  animation: orb-float 8s ease-in-out infinite;
}
.orb-1 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(0,212,255,0.35) 0%, transparent 70%);
  top: 10%; left: 10%;
}
.orb-2 {
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(124,58,237,0.3) 0%, transparent 70%);
  bottom: 10%; right: 10%;
  animation-delay: -4s;
}
@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(15px, -20px) scale(1.04); }
  66% { transform: translate(-10px, 15px) scale(0.97); }
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}
.hero-scroll-indicator span {
  display: block;
  width: 24px; height: 24px;
  border-right: 2px solid var(--text-secondary);
  border-bottom: 2px solid var(--text-secondary);
  transform: rotate(45deg);
  animation: bounce-down 1.5s infinite;
  opacity: 0.5;
}
@keyframes bounce-down {
  0%, 100% { transform: rotate(45deg) translate(0, 0); opacity: 0.5; }
  50% { transform: rotate(45deg) translate(4px, 4px); opacity: 1; }
}

/* Hero responsive */
@media (max-width: 1024px) {
  .hero-orb-wrapper { height: 350px; }
}
@media (max-width: 768px) {
  .hero-container { grid-template-columns: 1fr; }
  .hero-orb-wrapper { display: none; }
  .hero-name { font-size: 3rem; }
}

/* ── Responsive: Mobile ── */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
  }
  .nav-links.open { display: flex; }
  .nav-links li a {
    display: block;
    padding: 0.75rem 2rem;
    font-size: 1rem;
  }
  .nav-toggle { display: block; }
}

/* ── About ── */
.about { background: var(--bg-secondary); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-para {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1.25rem;
  font-size: 1rem;
}
.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2rem;
}
.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.3rem 0.8rem;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: 6px;
  color: var(--accent);
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color var(--transition), transform var(--transition);
  backdrop-filter: blur(8px);
}
.stat-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--accent-glow);
}
.stat-number {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

@media (max-width: 1024px) {
  .about-grid { gap: 3rem; }
}
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
}

/* ── Skills ── */
.skills { background: var(--bg-primary); }
.section-header { margin-bottom: 3.5rem; }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(8px);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.skill-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
  box-shadow: 0 12px 40px var(--accent-glow);
}
.skill-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.skill-icon {
  font-size: 1.2rem;
  color: var(--accent);
  width: 2.2rem; height: 2.2rem;
  background: var(--accent-glow);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.skill-card-header h3 {
  font-size: 1rem;
  font-weight: 700;
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.25rem 0.65rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-secondary);
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}
.skill-card:hover .skill-tag {
  border-color: rgba(0,212,255,0.15);
  color: var(--text-primary);
}

@media (max-width: 1024px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .skills-grid { grid-template-columns: 1fr; }
}

/* ── Experience / Timeline ── */
.experience { background: var(--bg-secondary); }
.timeline {
  position: relative;
  padding-left: 2.5rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
.timeline-item {
  position: relative;
  margin-bottom: 2.5rem;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -2.5rem;
  top: 1.75rem;
  width: 14px; height: 14px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--bg-secondary);
  box-shadow: 0 0 12px var(--accent);
}
.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2rem;
  backdrop-filter: blur(8px);
  transition: border-color var(--transition);
}
.timeline-card:hover { border-color: var(--border-accent); }
.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.timeline-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}
.timeline-company {
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 500;
}
.timeline-date {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  white-space: nowrap;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
}
.timeline-list {
  list-style: none;
  margin-bottom: 1.25rem;
}
.timeline-list li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-left: 1rem;
  position: relative;
  margin-bottom: 0.4rem;
}
.timeline-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.75rem;
}
.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.timeline-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }

@media (max-width: 768px) {
  .timeline { padding-left: 1.75rem; }
  .timeline-dot { left: -1.75rem; }
  .timeline-header { flex-direction: column; }
  .timeline-date { align-self: flex-start; }
}

/* ── Projects ── */
.projects { background: var(--bg-primary); }

.project-featured {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 2rem;
  overflow: hidden;
  position: relative;
  backdrop-filter: blur(8px);
  transition: border-color var(--transition);
}
.project-featured:hover { border-color: var(--border-accent); }
.project-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.5rem;
}
.project-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}
.project-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}
.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}
.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #22C55E;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  white-space: nowrap;
}
.live-dot {
  width: 6px; height: 6px;
  background: #22C55E;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
.project-desc {
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}
.project-tech { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
.project-btn { align-self: flex-start; }

.project-featured-visual {
  position: relative;
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-orb {
  position: absolute;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.2) 0%, transparent 70%);
  filter: blur(30px);
  animation: orb-float 6s ease-in-out infinite;
}
.project-mockup {
  font-size: 7rem;
  color: var(--accent);
  opacity: 0.2;
  z-index: 1;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(8px);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
  box-shadow: 0 12px 40px var(--accent-glow);
}
.project-card-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 1rem;
  width: 3rem; height: 3rem;
  background: var(--accent-glow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.project-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

@media (max-width: 1024px) {
  .project-featured { grid-template-columns: 1fr; }
  .project-featured-visual { display: none; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .project-featured { padding: 1.75rem; }
  .projects-grid { grid-template-columns: 1fr; }
}

/* ── Contact ── */
.contact { background: var(--bg-secondary); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}
.contact-icon {
  width: 2.75rem; height: 2.75rem;
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}
.contact-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.2rem;
}
.contact-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: color var(--transition);
}
a.contact-value:hover { color: var(--accent); }
.contact-socials {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}
.contact-social-btn { font-size: 0.85rem; }

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  backdrop-filter: blur(8px);
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  letter-spacing: 0.04em;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  font-family: var(--font-body);
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(148,163,184,0.5); }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-submit { width: 100%; justify-content: center; margin-top: 0.5rem; }

/* ── Footer ── */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-copy {
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.footer-links {
  display: flex;
  gap: 1.25rem;
}
.footer-links a {
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: color var(--transition), transform var(--transition);
}
.footer-links a:hover {
  color: var(--accent);
  transform: translateY(-2px);
}

@media (max-width: 1024px) {
  .contact-grid { gap: 3rem; }
}
@media (max-width: 768px) {
  section { padding: 4rem 0; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
}

/* ── Active nav link ── */
.nav-links a.active { color: var(--accent); }

/* ── Form hint ── */
.form-hint {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.3rem;
  opacity: 0.7;
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .badge-dot,
  .live-dot { animation: none; }
  .hero-orb,
  .project-orb { animation: none; }
  .hero-scroll-indicator span { animation: none; }
  .typing-cursor { animation: none; opacity: 1; }
}