:root {
  --color-bg: #080b1a;
  --color-bg-light: #0f162f;
  --color-accent: #5f7cff;
  --color-accent-soft: rgba(95, 124, 255, 0.1);
  --color-text: #f5f6ff;
  --color-text-muted: rgba(245, 246, 255, 0.72);
  --color-card: rgba(18, 25, 49, 0.82);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-highlight: #2dd6c4;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top left, #1a1f3a, #060811 70%);
  color: var(--color-text);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
}

.hero {
  position: relative;
  padding: 160px clamp(16px, 5vw, 48px) 96px;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(135deg, rgba(10, 15, 30, 0.9), rgba(10, 12, 40, 0.6));
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.6;
}

.hero::before {
  width: 380px;
  height: 380px;
  top: -120px;
  right: -60px;
  background: var(--color-accent);
}

.hero::after {
  width: 300px;
  height: 300px;
  bottom: -60px;
  left: -80px;
  background: var(--color-highlight);
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px clamp(16px, 5vw, 48px);
  margin: 0;
  background: rgba(8, 11, 26, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 10;
}

.logo {
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: 0.08em;
}

.nav__links {
  list-style: none;
  display: flex;
  gap: 24px;
  margin: 0;
  padding: 0;
}

.nav__links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  padding: 8px 0;
  transition: color 0.2s ease;
}

.nav__links a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 2px;
  background: transparent;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.nav__links a:hover {
  color: var(--color-text);
}

.nav__links a.is-active {
  color: var(--color-text);
}

.nav__links a.is-active::after {
  background: var(--color-accent);
  opacity: 1;
  transform: translateY(0);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.nav__toggle span {
  width: 18px;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.3s ease;
}

.hero__content {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero__text h1 {
  font-size: clamp(2.1rem, 4vw, 3rem);
  margin: 16px 0;
  line-height: 1.2;
}

.hero__text p {
  color: var(--color-text-muted);
  max-width: 520px;
  font-size: 1.05rem;
  line-height: 1.6;
}

.intro-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(95, 124, 255, 0.14);
  border: 1px solid rgba(95, 124, 255, 0.22);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero__cta {
  display: flex;
  gap: 16px;
  margin: 32px 0 24px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease;
  border: none;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 10px 30px rgba(95, 124, 255, 0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.btn--primary:hover {
  color: #fff;
}

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

.hero__social {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.hero__card {
  display: flex;
  justify-content: flex-end;
}

.glass-panel {
  backdrop-filter: blur(18px);
  background: var(--color-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 32px;
  min-width: 280px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

.glass-panel h2 {
  margin-top: 0;
  font-size: 1.4rem;
}

.glass-panel ul {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  color: var(--color-text-muted);
  display: grid;
  gap: 12px;
}

.availability {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-highlight);
  box-shadow: 0 0 12px rgba(45, 214, 196, 0.7);
}

main {
  padding: 80px clamp(16px, 5vw, 48px);
}

.section {
  max-width: var(--max-width);
  margin: 0 auto 96px;
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section__header h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.section__header p {
  color: var(--color-text-muted);
  line-height: 1.6;
}

.section--light {
  background: linear-gradient(135deg, rgba(12, 18, 35, 0.96), rgba(12, 18, 35, 0.6));
  padding: 72px clamp(16px, 5vw, 48px);
  border-radius: 40px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.profile {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.profile__card {
  background: rgba(15, 22, 47, 0.76);
  border-radius: 24px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.profile__card h3 {
  margin-top: 0;
}

.profile__card ul {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  color: var(--color-text-muted);
  display: grid;
  gap: 12px;
}

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

.skills__column {
  background: rgba(5, 8, 19, 0.65);
  border-radius: 20px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.skills__column h3 {
  margin-top: 0;
  margin-bottom: 16px;
}

.skills__column ul {
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--color-text-muted);
  display: grid;
  gap: 10px;
}

.experience {
  display: grid;
  gap: 32px;
}

.experience__item {
  background: rgba(10, 14, 30, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 24px 40px rgba(0, 0, 0, 0.3);
}

.experience__meta {
  margin-bottom: 20px;
}

.experience__period {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.experience__company {
  margin: 6px 0 0;
  color: var(--color-text-muted);
}

.experience__item ul {
  margin: 0;
  padding-left: 20px;
  color: var(--color-text-muted);
  display: grid;
  gap: 8px;
}

.education {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.education__item {
  background: rgba(5, 8, 19, 0.7);
  border-radius: 20px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
}

.education__item h3 {
  margin: 0 0 8px;
}

.education__item p {
  color: var(--color-text-muted);
  margin: 0;
}

.section--contact {
  padding: 72px clamp(16px, 5vw, 48px);
  border-radius: 40px;
}

.contact {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: start;
}

.contact__info ul {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  color: var(--color-text-muted);
  display: grid;
  gap: 12px;
}

.contact__info a {
  color: var(--color-text);
}

.contact__form {
  display: grid;
  gap: 18px;
  background: rgba(10, 14, 30, 0.78);
  border-radius: 28px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 0.9rem;
}

input,
textarea {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 12px;
  color: var(--color-text);
  font-family: inherit;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(95, 124, 255, 0.5);
}

textarea {
  resize: vertical;
}

.form-disclaimer {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin: 0;
}

.footer {
  padding: 32px clamp(16px, 5vw, 48px) 48px;
  background: rgba(5, 7, 16, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  text-align: center;
  color: var(--color-text-muted);
}

.footer__links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer__links a {
  font-size: 0.9rem;
}

.footer__note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  opacity: 0.8;
  margin: 0;
}

@media (max-width: 900px) {
  .nav__toggle {
    display: flex;
  }

  .nav__links {
    position: absolute;
    top: 72px;
    right: 0;
    flex-direction: column;
    background: rgba(8, 11, 26, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 16px 24px;
    width: min(240px, 80vw);
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .nav__links.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-bottom: 128px;
  }

  main {
    padding-top: 48px;
  }

  .profile__card,
  .skills__column,
  .experience__item,
  .education__item,
  .contact__form {
    padding: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}