:root {
  --bg: #08080f;
  --bg-2: #0e0e1a;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-border: rgba(255, 255, 255, 0.08);
  --purple: #8b5cf6;
  --purple-soft: #a78bfa;
  --cyan: #22d3ee;
  --text: #e7e7f2;
  --muted: #9393ab;
  --faint: #5b5b75;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Poppins', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 16px;
  --max-width: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
}

::selection { background: var(--purple); color: #fff; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--purple), var(--cyan));
  border-radius: 10px;
  border: 2px solid var(--bg);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

#net-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

.glass {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius);
}

/* ---------- NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 6vw;
  transition: background 0.3s ease, padding 0.3s ease, border-color 0.3s ease;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(8, 8, 15, 0.75);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 12px 6vw;
  border-bottom: 1px solid var(--surface-border);
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--cyan);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.88rem;
  color: var(--muted);
  position: relative;
  padding: 4px 0;
  transition: color 0.25s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
  transition: width 0.25s ease;
}

.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ---------- HERO ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 6vw 60px;
  position: relative;
  z-index: 1;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(139, 92, 246, 0.18), transparent),
    radial-gradient(ellipse 50% 40% at 10% 80%, rgba(34, 211, 238, 0.12), transparent);
}

.hero-grid {
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 1.4rem;
  letter-spacing: 0.5px;
}

.eyebrow-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(34,211,238,0.6);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(34,211,238,0.5); }
  70% { box-shadow: 0 0 0 8px rgba(34,211,238,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,211,238,0); }
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 700;
  line-height: 1.05;
  background: linear-gradient(135deg, #fff 30%, var(--purple-soft) 70%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 0.6rem;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  color: var(--purple-soft);
  font-weight: 400;
  margin-bottom: 1.4rem;
  min-height: 1.8rem;
}

.cursor {
  color: var(--cyan);
  animation: blink 1s step-end infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  color: var(--muted);
  max-width: 540px;
  font-size: 1rem;
  margin-bottom: 2.2rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-bottom: 2.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.85rem 1.5rem;
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  color: #07070d;
  font-weight: 600;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px -8px rgba(139, 92, 246, 0.6);
}

.btn-outline {
  border-color: var(--surface-border);
  color: var(--text);
  background: var(--surface);
}

.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-3px);
}

.btn-ghost {
  color: var(--muted);
}

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

.full-width { width: 100%; justify-content: center; }

.hero-socials {
  display: flex;
  gap: 1.1rem;
}

.hero-socials a {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--surface-border);
  color: var(--muted);
  background: var(--surface);
  transition: all 0.25s ease;
}

.hero-socials a:hover {
  color: var(--bg);
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  border-color: transparent;
  transform: translateY(-4px);
}

.hero-portrait {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portrait-ring {
  width: min(320px, 70vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--purple), var(--cyan), var(--purple));
  padding: 4px;
  /* animation: rotate-ring 8s linear infinite; */
}

@keyframes rotate-ring { to { transform: rotate(360deg); } }

.portrait-ring-inner {
  width: 100%; height: 100%;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg-2);
  border: 4px solid var(--bg);
}

.portrait-img { width: 100%; height: 100%; object-fit: cover; }

.portrait-tag {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0.6rem 1rem;
  border-radius: 50px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  animation: float-tag 4s ease-in-out infinite;
}

.portrait-tag i { color: var(--cyan); }
.tag-1 { top: 4%; right: -2%; animation-delay: 0s; }
.tag-2 { bottom: 10%; left: -8%; animation-delay: 1.3s; }
.tag-3 { bottom: -2%; right: 14%; animation-delay: 2.6s; }

@keyframes float-tag {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border-radius: 50px;
  border: 2px solid var(--surface-border);
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-indicator span {
  width: 4px; height: 8px;
  border-radius: 2px;
  background: var(--cyan);
  animation: scroll-dot 1.6s ease-in-out infinite;
}

@keyframes scroll-dot {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(14px); }
}

/* ---------- SECTIONS ---------- */
.section {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 7rem 6vw 2rem;
}

.section-head { margin-bottom: 3rem; }

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan);
  margin-bottom: 0.6rem;
  letter-spacing: 0.5px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 600;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- ABOUT ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
}

.about-card { padding: 2.4rem; }
.about-text { color: var(--muted); font-size: 1rem; }

.about-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.info-card {
  padding: 1.4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.info-card:hover { transform: translateY(-4px); border-color: var(--purple); }

.info-card i { font-size: 1.3rem; color: var(--cyan); }
.info-card div { display: flex; flex-direction: column; gap: 2px; }
.info-label { font-size: 0.72rem; color: var(--faint); text-transform: uppercase; letter-spacing: 0.6px; }
.info-value { font-size: 0.92rem; color: var(--text); word-break: break-word; }

/* ---------- SKILLS ---------- */
.skills-wrap { display: flex; flex-direction: column; gap: 2.4rem; }
.skill-group-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  color: var(--purple-soft);
  margin-bottom: 1rem;
  display: flex; align-items: center; gap: 10px;
}

.skill-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.skill-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0.8rem 1.2rem;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  font-size: 0.88rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.skill-card i { color: var(--cyan); font-size: 1.05rem; }

.skill-card:hover {
  transform: translateY(-5px);
  border-color: var(--purple);
  box-shadow: 0 0 24px -6px rgba(139, 92, 246, 0.55);
}

/* ---------- TIMELINE ---------- */
.timeline {
  position: relative;
  padding-left: 2.4rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--purple), var(--cyan));
}

.timeline-item { position: relative; margin-bottom: 2rem; }

.timeline-dot {
  position: absolute;
  left: -2.4rem;
  top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--cyan);
}

.timeline-card { padding: 1.6rem 1.8rem; }
.timeline-duration { font-family: var(--font-mono); font-size: 0.76rem; color: var(--cyan); }
.timeline-role { font-family: var(--font-display); font-size: 1.15rem; margin: 0.4rem 0 0.1rem; }
.timeline-company { font-weight: 400; font-size: 0.92rem; color: var(--purple-soft); margin-bottom: 0.6rem; }
.timeline-desc { color: var(--muted); font-size: 0.9rem; }

/* ---------- PROJECTS ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
}

.project-card { overflow: hidden; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.project-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px -16px rgba(139, 92, 246, 0.45); }

.project-img { aspect-ratio: 5/3; overflow: hidden; }
.project-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.project-card:hover .project-img img { transform: scale(1.08); }

.project-body { padding: 1.5rem 1.6rem 1.8rem; }
.project-body h3 { font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 0.1rem; }

.project-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.2rem; }
.project-tags span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  background: rgba(139, 92, 246, 0.12);
  color: var(--purple-soft);
}

.project-links { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.project-links a { font-size: 0.84rem; color: var(--muted); display: flex; align-items: center; gap: 6px; transition: color 0.2s ease; }
.project-links a:hover { color: var(--cyan); }

/* ---------- CERTS / ACHIEVEMENTS ---------- */
.cert-grid, .achieve-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.4rem;
}

.cert-card, .achieve-card {
  padding: 1.8rem;
  text-align: center;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.cert-card:hover, .achieve-card:hover { transform: translateY(-6px); border-color: var(--cyan); }

.cert-card i, .achieve-card i { font-size: 1.6rem; color: var(--purple-soft); margin-bottom: 0.8rem; display: block; }
.cert-card p, .achieve-card p { font-size: 0.9rem; color: var(--muted); }

/* ---------- RESUME ---------- */
.resume-card {
  padding: 3rem 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.6rem;
}

.resume-preview { color: var(--faint); }
.resume-preview i { font-size: 3rem; color: var(--purple-soft); margin-bottom: 0.8rem; display: block; }

/* ---------- CONTACT ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 2rem;
}

.contact-form { padding: 2.2rem; display: flex; flex-direction: column; gap: 1.6rem; }

.form-group { position: relative; }

.form-group input, .form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--surface-border);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.96rem;
  padding: 0.6rem 0;
  resize: none;
  outline: none;
  transition: border-color 0.25s ease;
}

.form-group input:focus, .form-group textarea:focus { border-color: var(--cyan); }

.form-group label {
  position: absolute;
  left: 0; top: 0.6rem;
  color: var(--faint);
  font-size: 0.96rem;
  pointer-events: none;
  transition: transform 0.2s ease, font-size 0.2s ease, color 0.2s ease;
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
  transform: translateY(-1.4rem);
  font-size: 0.74rem;
  color: var(--cyan);
}

.form-status { font-size: 0.85rem; color: var(--cyan); min-height: 1.2rem; }

.contact-info { display: flex; flex-direction: column; gap: 1rem; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.4rem;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.contact-link:hover { transform: translateX(6px); border-color: var(--purple); }
.contact-link i { font-size: 1.3rem; color: var(--cyan); }
.contact-link div { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.contact-link .info-value { overflow: hidden; text-overflow: ellipsis; }

/* ---------- FOOTER ---------- */
.footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2.6rem 1rem 2rem;
  color: var(--faint);
  font-size: 0.85rem;
  border-top: 1px solid var(--surface-border);
  margin-top: 4rem;
}

.footer-sub { margin-top: 0.3rem; font-size: 0.78rem; }

/* ---------- BACK TO TOP ---------- */
.back-to-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  color: #07070d;
  border: none;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  z-index: 90;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.back-to-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-socials { justify-content: center; }
  .hero-buttons { justify-content: center; }
  .hero-portrait { order: -1; margin-bottom: 1rem; }
  .about-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: min(280px, 80vw);
    height: 100vh;
    background: rgba(10, 10, 18, 0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1.8rem;
    transition: right 0.35s ease;
    border-left: 1px solid var(--surface-border);
  }
  .nav-links.open { right: 0; }
  .about-info-grid { grid-template-columns: 1fr; }
}

/* ---------- CARD FLIP ---------- */
.project-card {
  perspective: 1000px;
  background: transparent !important;
  border: none !important;
  min-height: 420px;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 420px;
  transform-style: preserve-3d;
  transition: transform 0.7s cubic-bezier(0.4, 0.2, 0.2, 1);
}

.project-card.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius);
  overflow: hidden;
}

.card-front {
  background: var(--surface);
  border: 1px solid var(--surface-border);
}

.card-back {
  background: linear-gradient(135deg, #1a0a3a, #0a1a2e);
  border: 1px solid var(--purple);
  transform: rotateY(180deg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.2rem;
}

.card-back h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--purple-soft), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.card-back p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}