:root {
  --bg: #030305;
  --bg-alt: #09090e;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.05);
  --border-hover: rgba(255, 255, 255, 0.15);
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #8b7cff;
  --accent2: #38bdf8;
  --radius: 24px;
  --radius-sm: 16px;
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  --glow-size: 500px;
}


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

html {
  scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--accent2);
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1200px, 90vw);
  margin: 0 auto;
}

.container.narrow {
  max-width: 800px;
}

.text-muted {
  color: var(--muted);
}

/* Ambient Background Orbs */
.ambient-orbs {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
  animation: float 20s infinite alternate ease-in-out;
}

.ambient-orb-1 {
  width: var(--glow-size);
  height: var(--glow-size);
  background: var(--accent);
  top: -20%;
  left: -10%;
  animation-delay: 0s;
}

.ambient-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--accent2);
  bottom: 10%;
  right: -5%;
  animation-delay: -5s;
}

.ambient-orb-3 {
  width: 300px;
  height: 300px;
  background: #ff007f;
  top: 40%;
  left: 40%;
  animation-delay: -10s;
  opacity: 0.15;
}

@keyframes float {
  0% {
    transform: translate(0, 0) scale(1);
  }

  50% {
    transform: translate(50px, 30px) scale(1.1);
  }

  100% {
    transform: translate(-30px, -50px) scale(0.9);
  }
}

/* Header (Glassmorphism) */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(3, 3, 5, 0.6);
  border-bottom: 1px solid var(--border);
  transition: all 0.4s ease;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
}

.site-logo__img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.site-logo__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 20px var(--accent);
}

.site-nav {
  display: flex;
  gap: 32px;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width 0.3s ease;
  border-radius: 2px;
}

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

.site-nav a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.8rem;
  cursor: pointer;
  transition: color 0.3s;
}

.nav-toggle:hover {
  color: var(--accent);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__greeting {
  display: inline-block;
  color: var(--accent2);
  font-weight: 600;
  margin-bottom: 16px;
  padding: 6px 16px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent2) 15%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent2) 30%, transparent);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 4.5rem);
  line-height: 1.05;
  font-weight: 800;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.hero__subtitle {
  color: var(--muted);
  font-size: 1.25rem;
  max-width: 580px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero__cta {
  display: flex;
  align-items: center;
  gap: 24px;
}

.hero__socials {
  display: flex;
  gap: 16px;
}

.hero__socials a {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--surface);
  backdrop-filter: blur(10px);
  font-size: 1.2rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero__socials a:hover {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 10px 20px color-mix(in srgb, var(--accent) 40%, transparent);
}

.hero__visual {
  position: relative;
  perspective: 1000px;
}

.hero__avatar {
  width: 100%;
  max-width: 440px;
  margin-left: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.8);
  transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
  transform: rotateY(-5deg) rotateX(5deg);
}

.hero__visual:hover .hero__avatar {
  transform: rotateY(0deg) rotateX(0deg);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.05rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  background-size: 200% 200%;
  background-position: 0% 50%;
  color: #fff;
  box-shadow: 0 12px 32px color-mix(in srgb, var(--accent) 40%, transparent);
}

.btn-primary:hover {
  background-position: 100% 50%;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 16px 40px color-mix(in srgb, var(--accent2) 50%, transparent);
}

.btn-primary span {
  position: relative;
  z-index: 1;
}

.btn-primary i {
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease;
}

.btn-primary:hover i {
  transform: translateX(4px);
}

/* Sections */
.section {
  padding: 120px 0;
  position: relative;
}

.section--alt {
  background: linear-gradient(to bottom, var(--bg-alt), var(--bg));
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 48px;
  font-weight: 800;
  position: relative;
  display: inline-block;
}

.section__title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 60px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

.prose p {
  margin-bottom: 1.5em;
  font-size: 1.1rem;
  color: var(--muted);
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose a {
  color: var(--accent2);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Skills — категорії та теги */
.skill-stack {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.skill-stack__group {
  padding: 22px 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
}

.skill-stack__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent2);
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.skill-stack__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--text);
  background: color-mix(in srgb, var(--accent) 18%, rgba(255, 255, 255, 0.04));
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.skill-tag:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 24%, rgba(255, 255, 255, 0.06));
  transform: translateY(-1px);
}

.skill-tag__note {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 400;
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 32px;
}

.project-card {
  position: relative;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
}

.project-card:hover {
  transform: translateY(-8px) rotate(2deg);
  border-color: color-mix(in srgb, var(--accent) 50%, transparent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 20px color-mix(in srgb, var(--accent) 20%, transparent);
  background: rgba(255, 255, 255, 0.04);
}

.project-card__img {
  aspect-ratio: 16/10;
  overflow: hidden;
  position: relative;
}

.project-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-card__img img {
  transform: scale(1.08);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(3, 3, 5, 0.8) 0%, rgba(3, 3, 5, 0) 100%);
  opacity: 0.6;
  transition: opacity 0.3s;
}

.project-card:hover .project-card__overlay {
  opacity: 0.8;
}

.project-card__body {
  padding: 28px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.project-card__tags {
  font-size: 0.75rem;
  color: var(--accent2);
  margin-bottom: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.project-card p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: #fff;
  margin-top: auto;
  align-self: flex-start;
  padding: 8px 0;
  position: relative;
}

.project-card__link i {
  transition: transform 0.3s;
  color: var(--accent2);
}

.project-card:hover .project-card__link i {
  transform: translate(4px, -4px);
}

.project-card__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 0;
  height: 2px;
  background: var(--accent2);
  transition: width 0.3s;
}

.project-card:hover .project-card__link::after {
  width: 100%;
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 32px;
}

.blog-card {
  display: block;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s ease;
}

.blog-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-hover);
  background: var(--surface-hover);
}

.blog-card img {
  aspect-ratio: 16/9;
  object-fit: cover;
  width: 100%;
}

.blog-card__body {
  padding: 24px;
}

.blog-card time {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  display: block;
  margin-bottom: 8px;
}

.blog-card h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.blog-card p {
  color: var(--muted);
}

/* Contact Section */
.contact-intro {
  font-size: 1.1rem;
  margin-bottom: 32px;
}

.contact-channels {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.contact-channel {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  color: var(--text);
  font-weight: 600;
  font-family: var(--font-display);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-channel:hover {
  color: #fff;
  background: var(--surface-hover);
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--accent) 20%, transparent);
}

.contact-channel i {
  font-size: 1.4rem;
  color: var(--accent2);
  transition: transform 0.3s;
}

.contact-channel:hover i {
  transform: scale(1.2);
}

.contact-form {
  display: grid;
  gap: 20px;
  margin-top: 40px;
  background: var(--surface);
  padding: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 18px 20px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text);
  font: inherit;
  transition: all 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(0, 0, 0, 0.5);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 15%, transparent);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-msg {
  font-size: 1rem;
  font-weight: 500;
  margin-top: 10px;
}

.form-msg.ok {
  color: #4ade80;
}

.form-msg.err {
  color: #f87171;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  background: var(--bg-alt);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer__end {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 32px;
}

.socials {
  display: flex;
  gap: 16px;
}

.socials a {
  color: var(--muted);
  font-size: 1.4rem;
  transition: all 0.3s;
  display: block;
}

.socials a:hover {
  color: var(--accent);
  transform: translateY(-3px);
}

/* Page Head for Blog/Inner Pages */
.page-head {
  padding-top: 140px;
  padding-bottom: 40px;
  text-align: center;
}

.post-meta {
  color: var(--accent2);
  margin-bottom: 20px;
  font-weight: 600;
  font-family: var(--font-display);
}

.post-cover {
  border-radius: var(--radius);
  margin-bottom: 40px;
  width: 100%;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.post-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 24px;
  font-weight: 800;
  line-height: 1.1;
}

/* Reveal Animations */
.reveal {
  opacity: 0;
  transform: translateY(40px) scale(0.95);
  transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
  will-change: opacity, transform;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

@media (max-width: 992px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__cta {
    justify-content: center;
    flex-direction: column;
    gap: 16px;
  }

  .hero__socials {
    justify-content: center;
  }

  .hero__visual {
    order: -1;
  }

  .hero__avatar {
    margin: 0 auto;
    max-width: 320px;
    transform: none;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    background: rgba(3, 3, 5, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    text-align: center;
  }

  .site-nav a {
    font-size: 1.1rem;
  }

  .site-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 24px;
  }
}