:root {
  color-scheme: dark;
  --bg-primary: #0b0d10;
  --bg-secondary: #0f1217;
  --bg-mainpage-top: #11141a;
  --bg-mainpage-bottom: #090a0d;
  --bg-card: rgba(0, 0, 0, 0.1);
  --bg-card-hover: rgba(0, 0, 0, 0.2);
  --border-subtle: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.2);
  --text-primary: #e8e9eb;
  --text-secondary: rgba(232, 233, 235, 0.7);
  --text-muted: rgba(232, 233, 235, 0.5);
  --accent: rgba(255, 255, 255, 0.1);
  --accent-hover: rgba(255, 255, 255, 0.2);
  --transition: 200ms ease;
  --spacing: clamp(3rem, 8vw, 7rem);
}

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

.obr3{
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.logo{
  height: 50px;
  width: 50px;
}
html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

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

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

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

section.section {
  padding: var(--spacing) clamp(1.5rem, 5vw, 3rem);
}

.container {
  width: min(1100px, 100%);
  margin-inline: auto;
}

.eyebrow {
  letter-spacing: 0.35em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--text-muted);
}

h1, h2, h3 {
  font-weight: 600;
  line-height: 1.2;
  margin: 0;
  color: #fff;
}

.lead {
  color: var(--text-secondary);
  margin: 1rem 0 2rem;
  max-width: 38rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent-hover);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-1px);
}

.btn-outline {
  border-color: var(--border-subtle);
  color: var(--text-secondary);
}

.btn-outline:hover {
  border-color: var(--border-strong);
  color: #fff;
  transform: translateY(-1px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 13, 16, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem clamp(1.5rem, 5vw, 3rem);
  width: min(1100px, 100%);
  margin-inline: auto;
}

.brand {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 1.05rem;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 2.5rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.nav-links a {
  position: relative;
  padding-bottom: 0.35rem;
  transition: color var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: #fff;
  transition: width var(--transition);
}

.nav-links a:hover {
  color: #fff;
}

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

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  transition: border-color var(--transition), color var(--transition);
}

.menu-toggle:hover,
.menu-toggle[aria-expanded="true"] {
  border-color: var(--border-strong);
  color: #fff;
}

.menu-icon,
.menu-icon::before,
.menu-icon::after {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
  position: relative;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-icon::before,
.menu-icon::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-icon::before {
  top: -6px;
}

.menu-icon::after {
  top: 6px;
}

.menu-toggle[aria-expanded="true"] .menu-icon {
  background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-icon::before {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-icon::after {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0 1.5rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  background: rgba(11, 13, 16, 0.98);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.mobile-nav.show {
  display: flex;
}

.mobile-nav a {
  display: block;
  padding: 0.75rem 0.5rem;
  border-radius: 10px;
  transition: background var(--transition), color var(--transition);
}

.mobile-nav a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.mainpage {
  background: linear-gradient(180deg, var(--bg-mainpage-top), var(--bg-mainpage-bottom));
  border-bottom: 1px solid var(--border-subtle);
}

.mainpage-container {
  width: min(1100px, 100%);
  margin-inline: auto;
  display: grid;
  gap: clamp(2.5rem, 7vw, 5rem);
  align-items: center;
}

.mainpage-content h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
}

.mainpage-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.mainpage-portrait {
  position: relative;
  display: flex;
  justify-content: center;
}

.portrait-glow {
  position: absolute;
  inset: -20% -10% -10% -10%;
  background: radial-gradient(circle, rgba(34, 40, 51, 0.8), transparent 70%);
  filter: blur(30px);
  z-index: 0;
}

.portrait-frame {
  position: relative;
  width: min(320px, 80vw);
  aspect-ratio: 3 / 4;
  border-radius: 28px;
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  box-shadow: 0 25px 80px -30px rgba(0, 0, 0, 0.75);
  background: #151922;
  z-index: 1;
}

.about {
  border-bottom: 1px solid var(--border-subtle);
}

.about-grid {
  display: grid;
  gap: 2rem;
}

.section-intro h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
}

.section-body,
.section-description {
  color: var(--text-secondary);
}

.skills {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card-grid {
  margin-top: 3rem;
  display: grid;
  gap: 1.5rem;
}

.card {
  padding: 1.75rem;
  border-radius: 22px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.work {
  border-bottom: 1px solid var(--border-subtle);
}

.work-grid {
  margin-top: 3rem;
  display: grid;
  gap: 1.5rem;
}

.work-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.75rem;
  border-radius: 22px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.work-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}

.work-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--text-secondary);
  transition: color var(--transition), transform var(--transition);
}

.work-card:hover .work-link {
  color: #fff;
  transform: translateX(4px);
}

.contact {
  background: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  gap: 2.5rem;
}

.contact-details {
  margin: 2rem 0 0;
  padding: 0;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  display: grid;
  gap: 0.5rem;
}

.contact-form {
  display: grid;
  gap: 1.25rem;
  padding: 1.75rem;
  border-radius: 24px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
}

.form-field {
  display: grid;
  gap: 0.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-field input,
.form-field textarea {
  font: inherit;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.3);
  color: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: rgba(232, 233, 235, 0.35);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08);
}

textarea {
  resize: none;
}

.site-footer {
  padding: 2.5rem 1.5rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.35);
  border-top: 1px solid var(--border-subtle);
  background: #090a0d;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }

  .mobile-nav {
    display: none !important;
  }

  .mainpage-container {
    grid-template-columns: 1fr 0.9fr;
  }

  .about-grid {
    grid-template-columns: 1fr 1fr;
    align-items: end;
  }

  .section-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .work-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}

@media (max-width: 767px) {
  .mainpage {
    padding-top: clamp(4rem, 10vw, 6rem);
  }

  .mainpage-container {
    text-align: left;
  }

  .mainpage-actions {
    justify-content: flex-start;
  }
}