:root {
  --bg: #04050a;
  --bg-deep: #0c1020;
  --surface: rgba(10, 12, 24, 0.84);
  --surface-strong: rgba(17, 21, 40, 0.94);
  --surface-muted: rgba(21, 26, 48, 0.82);
  --text: #f4f7ff;
  --muted: rgba(224, 231, 255, 0.72);
  --accent: #7c3aed;
  --accent-strong: #22d3ee;
  --accent-warm: #fb7185;
  --accent-lime: #bef264;
  --border: rgba(125, 211, 252, 0.22);
  --shadow: 0 28px 72px rgba(4, 5, 10, 0.72);
  --shadow-soft: 0 16px 32px rgba(4, 5, 10, 0.5);
  --radius-lg: 30px;
  --radius-md: 20px;
  --radius-sm: 14px;
}

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

html {
  overflow-x: hidden;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight: 500;
  background:
    radial-gradient(
      circle at top left,
      rgba(34, 211, 238, 0.18),
      transparent 28%
    ),
    radial-gradient(
      circle at top right,
      rgba(124, 58, 237, 0.22),
      transparent 26%
    ),
    radial-gradient(
      circle at bottom left,
      rgba(251, 113, 133, 0.14),
      transparent 24%
    ),
    radial-gradient(
      circle at bottom right,
      rgba(190, 242, 100, 0.12),
      transparent 22%
    ),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  scroll-behavior: smooth;
  position: relative;
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: auto;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.6;
  pointer-events: none;
  mix-blend-mode: screen;
  z-index: -1;
  animation:
    drift 16s ease-in-out infinite alternate,
    pulse 10s ease-in-out infinite;
}

body::before {
  top: -8rem;
  right: -6rem;
  background: radial-gradient(
    circle,
    rgba(34, 211, 238, 0.42),
    transparent 70%
  );
}

body::after {
  bottom: -10rem;
  left: -4rem;
  background: radial-gradient(
    circle,
    rgba(124, 58, 237, 0.36),
    transparent 70%
  );
  animation-duration: 19s;
  animation-direction: alternate-reverse;
}

main {
  margin: 0 auto 0;
  padding: 1rem 0 3rem;
  max-width: 56rem;
  display: grid;
  gap: 0.5rem;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
  transition:
    color 180ms ease,
    background-color 180ms ease,
    transform 180ms ease;
}

a:hover,
a:focus-visible {
  color: #fff;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent-lime);
  outline-offset: 3px;
}

.hero,
.content-section,
.site-footer {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 1rem;
  padding: clamp(1.5rem, 3.5vw, 3rem);
  min-height: 40vh;
  align-content: center;
  border-radius: var(--radius-lg);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -8rem -10rem auto;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(251, 113, 133, 0.2),
    transparent 70%
  );
  pointer-events: none;
}

.section-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.section-nav a {
  padding: 0.55rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(125, 211, 252, 0.22);
  background: rgba(17, 21, 40, 0.76);
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--text);
}

.section-nav a:hover,
.section-nav a:focus-visible {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-color: transparent;
  color: #fff;
  transform: translateY(-1px) scale(1.02);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 18px rgba(34, 211, 238, 0.22);
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.8rem;
  color: var(--accent-strong);
}

h1,
h2,
h3 {
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight: 800;
  letter-spacing: -0.02em;
}

h1 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.9;
  font-weight: 900;
  text-shadow: 0 0 20px rgba(34, 211, 238, 0.16);
  animation: glow 4s ease-in-out infinite;
}

.intro {
  margin: 0;
  max-width: 46rem;
  font-size: clamp(1.2rem, 1.8vw, 1.4rem);
  line-height: 1.7;
  color: var(--muted);
}

.hero-image {
  width: min(100%, 30rem);
  max-width: 100%;
  height: auto;
  border-radius: calc(var(--radius-md) + 4px);
  justify-self: center;
}

@media (min-width: 721px) {
  .hero {
    column-gap: clamp(1rem, 3vw, 2.5rem);
  }

  .section-nav,
  .eyebrow,
  .hero h1 {
    grid-column: 1 / -1;
  }

  .hero-image {
    grid-column: 2;
    grid-row: 4 / span 2;
    justify-self: end;
    align-self: start;
  }

  .hero .intro {
    grid-column: 1;
    grid-row: 5 / span 2;
  }
}

.content-section {
  margin: 1.25rem 0 0;
  padding: clamp(1.25rem, 3vw, 2.25rem);
  border-radius: var(--radius-md);
  scroll-margin-top: 1rem;
  background-image:
    linear-gradient(145deg, rgba(124, 58, 237, 0.08), transparent 35%),
    linear-gradient(320deg, rgba(34, 211, 238, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(10, 12, 24, 0.92), rgba(17, 21, 40, 0.82));
}

.content-section p {
  max-width: 54rem;
  font-size: clamp(1.2rem, 1.8vw, 1.4rem);
  line-height: 1.75;
  overflow-wrap: anywhere;
}

.content-figure {
  max-width: 54rem;
  margin: 1.25rem 0 1.5rem;
  padding: 0.75rem;
  background: var(--surface-strong);
  border: 1px solid rgba(34, 211, 238, 0.18);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
}

.content-figure.compact {
  margin: 0.75rem 0 1.25rem;
}

.content-image {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: calc(var(--radius-sm) - 4px);
  background:
    radial-gradient(
      circle at top left,
      rgba(34, 211, 238, 0.25),
      transparent 40%
    ),
    radial-gradient(
      circle at bottom right,
      rgba(251, 113, 133, 0.22),
      transparent 36%
    ),
    linear-gradient(180deg, #12162a 0%, #0a0d18 100%);
}

.content-figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--muted);
}

.content-block + .content-block {
  margin-top: 2rem;
}

.section-heading {
  margin-bottom: 1.25rem;
}

.section-label {
  margin: 0 0 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--accent-strong);
}

h2 {
  margin: 0;
  font-size: clamp(1.7rem, 4vw, 3rem);
  line-height: 1.05;
  font-weight: 850;
}

h3 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  line-height: 1.12;
  font-weight: 800;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.card {
  padding: 0.6rem;
  background:
    linear-gradient(135deg, rgba(124, 58, 237, 0.14), transparent 34%),
    linear-gradient(315deg, rgba(34, 211, 238, 0.12), transparent 30%),
    rgba(10, 12, 24, 0.78);
  border: 1px solid rgba(125, 211, 252, 0.18);
  border-radius: var(--radius-sm);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.card:hover,
.card:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(34, 211, 238, 0.34);
}

.card p {
  margin: 0;
  font-size: 1rem;
}

.content-list {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
  line-height: 1.85;
  overflow-wrap: anywhere;
}

.content-list.compact {
  margin-top: 0.75rem;
}

.content-list li + li {
  margin-top: 0.35rem;
}

.contact-list {
  margin: 1.25rem 0 0;
  padding-left: 1.15rem;
  line-height: 1.85;
  overflow-wrap: anywhere;
}

.site-footer {
  margin: 1.25rem 0 0;
  padding: 1.5rem 1.25rem;
  border-radius: var(--radius-md);
  text-align: center;
  color: var(--muted);
  background-image:
    linear-gradient(135deg, rgba(251, 113, 133, 0.08), transparent 34%),
    linear-gradient(315deg, rgba(190, 242, 100, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(10, 12, 24, 0.9), rgba(17, 21, 40, 0.76));
}

.site-footer p {
  margin: 0;
}

.site-footer p + p {
  margin-top: 0.4rem;
}

@media (max-width: 720px) {
  main {
    width: 100%;
    padding: 0.35rem 0.35rem 1.2rem;
    margin: 0;
  }

  .hero,
  .content-section,
  .site-footer,
  .card,
  .content-figure {
    border: 0;
    box-shadow: none;
    backdrop-filter: none;
  }

  .hero {
    min-height: auto;
    gap: 0.65rem;
    padding: 0.75rem;
  }

  .hero-image {
    width: min(100%, 22rem);
    max-width: 100%;
    margin-inline: auto;
    justify-self: center;
  }

  .section-nav {
    gap: 0.35rem;
    margin-bottom: 0.3rem;
  }

  .section-nav a {
    flex: 1 1 8rem;
    min-height: 44px;
    text-align: center;
    padding: 0.45rem 0.65rem;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
    gap: 0.6rem;
    margin-top: 0.7rem;
  }

  .content-section,
  .site-footer {
    border-radius: var(--radius-sm);
    padding: 0.65rem;
    max-width: 100%;
  }

  .content-section {
    margin-top: 0.7rem;
  }

  .site-footer {
    margin-top: 0.8rem;
    padding: 0.85rem 0.65rem;
  }

  .card {
    padding: 0.6rem;
    max-width: 100%;
  }

  .content-figure {
    margin: 0.5rem 0;
    padding: 0.35rem;
    border-radius: var(--radius-sm);
    max-width: 100%;
    overflow: hidden;
  }

  .content-list,
  .contact-list {
    margin-top: 0.65rem;
    padding-left: 1rem;
    line-height: 1.65;
  }

  .content-list li + li {
    margin-top: 0.2rem;
  }

  .content-block + .content-block {
    margin-top: 1rem;
  }

  .content-image {
    width: min(100%, calc(100vw - 0.7rem));
    max-width: 100%;
    height: auto;
    object-fit: contain;
    margin-inline: auto;
    border-radius: calc(var(--radius-sm) - 6px);
  }

  .content-section iframe,
  .card iframe {
    display: block;
    width: min(100%, calc(100vw - 1rem));
    max-width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    border: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}

@keyframes drift {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(2.5rem, 1.5rem, 0) scale(1.08);
  }
}

@keyframes pulse {
  0% {
    opacity: 0.5;
  }
  100% {
    opacity: 0.7;
  }
}

@keyframes glow {
  0%,
  100% {
    text-shadow: 0 0 20px rgba(34, 211, 238, 0.16);
  }
  50% {
    text-shadow: 0 0 40px rgba(34, 211, 238, 0.4);
  }
}