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

:root {
  --bg: #0a0a0f;
  --surface: #111118;
  --card: #16161f;
  --border: #1e1e2e;
  --accent: #7c6af7;
  --accent-glow: rgba(124, 106, 247, 0.18);
  --accent2: #4fd1c5;
  --text: #e2e4ef;
  --muted: #8b8fa8;
  --dim: #555770;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── SKIP LINK ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 0 0 8px 8px;
  font-size: 0.85rem;
  font-weight: 500;
  z-index: 200;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 0;
}

/* ── FOCUS INDICATORS ── */
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 3px;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 4rem;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s ease;
}
.nav-logo {
  font-family: 'Fira Code', monospace;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.nav-logo span {
  color: var(--accent2);
}
.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.nav-links a:hover {
  color: var(--text);
}
.nav-links a:hover::after {
  transform: scaleX(1);
}

/* ── HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  cursor: pointer;
  z-index: 101;
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ── MOBILE MENU ── */
.nav-links.mobile-open {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 15, 0.97);
  backdrop-filter: blur(16px);
  justify-content: center;
  align-items: center;
  gap: 2rem;
  z-index: 100;
}
.nav-links.mobile-open a {
  font-size: 1.2rem;
  color: var(--text);
}

/* ── CONTAINER ── */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124, 106, 247, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 106, 247, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(
    ellipse 80% 80% at 50% 50%,
    black 40%,
    transparent 100%
  );
}
.hero-glow {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(
    ellipse,
    rgba(124, 106, 247, 0.12) 0%,
    transparent 70%
  );
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.35rem 0.9rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.78rem;
  color: var(--accent2);
  margin-bottom: 1.8rem;
  animation: fadeUp 0.6s ease both;
}
.hero-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent2);
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}
h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  animation: fadeUp 0.6s 0.1s ease both;
}
h1 .name {
  color: var(--text);
}
h1 .role {
  display: block;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  max-width: 560px;
  color: var(--muted);
  font-size: 1.05rem;
  margin: 1.5rem 0 2.5rem;
  animation: fadeUp 0.6s 0.2s ease both;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeUp 0.6s 0.3s ease both;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  box-shadow: 0 0 24px rgba(124, 106, 247, 0.3);
}
.btn-primary:hover {
  background: #9585fa;
  box-shadow: 0 0 36px rgba(124, 106, 247, 0.5);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}
.hero-contacts {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 3rem;
  animation: fadeUp 0.6s 0.4s ease both;
}
.hero-contacts a {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--dim);
  text-decoration: none;
  font-size: 0.85rem;
  font-family: 'Fira Code', monospace;
  transition: color 0.2s;
}
.hero-contacts a:hover {
  color: var(--accent);
}
.hero-contacts a svg {
  width: 16px;
  height: 16px;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── SECTIONS ── */
section {
  padding: 6rem 0;
}
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.78rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.6rem;
}
.section-label::before {
  content: '//';
  color: var(--dim);
  font-weight: 400;
}
h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.8rem;
}
.section-divider {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 2px;
  margin-bottom: 3rem;
}

/* ── ABOUT / SKILLS ── */
#about .grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.about-text {
  color: var(--muted);
  font-size: 1rem;
}
.about-text p + p {
  margin-top: 1rem;
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem 1.5rem;
  text-align: center;
  transition:
    border-color 0.3s,
    transform 0.3s;
}
.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.stat-num {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--dim);
  margin-top: 0.2rem;
}

/* ── SKILLS ── */
#skills .skills-groups {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.skill-group {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem;
  transition:
    border-color 0.3s,
    box-shadow 0.3s;
}
.skill-group:hover {
  border-color: var(--accent);
  box-shadow: 0 0 24px var(--accent-glow);
}
.skill-group-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent2);
  margin-bottom: 1rem;
}
.skill-group-title svg {
  width: 16px;
  height: 16px;
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.skill-tag {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.28rem 0.65rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.78rem;
  color: var(--muted);
  transition: all 0.2s;
}
.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── PROJECTS ── */
.projects-grid {
  display: grid;
  gap: 1.5rem;
}
.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition:
    transform 0.3s,
    box-shadow 0.3s,
    border-color 0.3s;
}
.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  border-color: rgba(124, 106, 247, 0.3);
}
.project-card:hover::before {
  opacity: 1;
}
.project-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.8rem;
  gap: 1rem;
}
.project-name {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
}
.project-subtitle {
  font-size: 0.82rem;
  color: var(--dim);
  margin-top: 0.1rem;
}
.project-attribution {
  font-size: 0.72rem;
  color: var(--dim);
  font-style: italic;
  margin-top: 0.15rem;
}
.project-link {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  white-space: nowrap;
  transition: gap 0.2s;
}
.project-link:hover {
  gap: 0.5rem;
}
.project-link svg {
  width: 14px;
  height: 14px;
}
.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.2rem;
}
.tech-badge {
  background: rgba(124, 106, 247, 0.08);
  border: 1px solid rgba(124, 106, 247, 0.2);
  border-radius: 4px;
  padding: 0.2rem 0.5rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.72rem;
  color: var(--accent);
}
.project-bullets {
  list-style: none;
}
.project-bullets li {
  color: var(--muted);
  font-size: 0.9rem;
  padding: 0.3rem 0;
  padding-left: 1.2rem;
  position: relative;
}
.project-bullets li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ── ACHIEVEMENTS ── */
#achievements .ach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}
.ach-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  transition:
    border-color 0.3s,
    transform 0.3s;
}
.ach-card:hover {
  border-color: var(--accent2);
  transform: translateY(-2px);
}
.ach-icon {
  font-size: 1.5rem;
  margin-bottom: 0.6rem;
}
.ach-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 0.3rem;
}
.ach-desc {
  font-size: 0.83rem;
  color: var(--muted);
}

/* ── EDUCATION ── */
#education .edu-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}
.edu-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-glow);
  border: 1px solid rgba(124, 106, 247, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.edu-icon svg {
  width: 24px;
  height: 24px;
  color: var(--accent);
}
.edu-degree {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}
.edu-school {
  font-size: 0.9rem;
  color: var(--accent);
  margin: 0.2rem 0;
}
.edu-meta {
  font-size: 0.82rem;
  color: var(--dim);
}
.edu-grade {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(79, 209, 197, 0.08);
  border: 1px solid rgba(79, 209, 197, 0.2);
  border-radius: 4px;
  padding: 0.2rem 0.6rem;
  font-size: 0.78rem;
  color: var(--accent2);
  margin-top: 0.6rem;
}
.coursework {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.course-tag {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.2rem 0.6rem;
  font-size: 0.78rem;
  color: var(--dim);
}

/* ── CONTACT ── */
#contact {
  padding-bottom: 8rem;
}
.contact-inner {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.contact-inner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 300px;
  background: radial-gradient(
    ellipse,
    rgba(124, 106, 247, 0.12) 0%,
    transparent 70%
  );
  pointer-events: none;
}
.contact-inner h2 {
  position: relative;
}
.contact-inner p {
  color: var(--muted);
  margin: 0.8rem auto 2.5rem;
  max-width: 460px;
  position: relative;
}
.contact-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  position: relative;
}
.contact-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.25s;
}
.contact-link svg {
  width: 18px;
  height: 18px;
}
.contact-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  color: var(--dim);
  font-size: 0.82rem;
}
footer span {
  color: var(--accent);
}

/* ── REVEAL ANIMATION ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav {
    padding: 1rem 1.5rem;
  }
  .nav-links {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  #about .grid-2 {
    grid-template-columns: 1fr;
  }
  .edu-card {
    flex-direction: column;
  }
  .contact-inner {
    padding: 2rem 1.5rem;
  }
}