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

:root {
  --bg:           #000000;
  --text:         #ffffff;
  --accent:       #c9a6f5;
  --accent-light: #e0ccff;
  --accent-dim:   #9b72d9;
  --accent-deep:  #6b3fa0;
  --surface:      #0e0e14;
  --surface-2:    #17171f;
  --border:       #3a2a5a;
  --radius:       10px;
  --radius-lg:    18px;
  --font-body:    'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --transition:   0.22s ease;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}


::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--accent-deep); border-radius: 3px; }


.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 24px;
}


.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent-dim) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}


.header-spacer { flex: 1; }


.header-auth {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn-login,
.btn-register {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 22px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn-login {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}

.btn-login:hover {
  background: var(--accent);
  color: #000;
  box-shadow: 0 0 14px rgba(201, 166, 245, 0.4);
}

.btn-register {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #000;
  border-color: transparent;
}

.btn-register:hover {
  box-shadow: 0 0 18px rgba(201, 166, 245, 0.55);
  filter: brightness(1.08);
}


.lang-switcher {
  position: relative;
  flex-shrink: 0;
}

.lang-current {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 50px;
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  white-space: nowrap;
  user-select: none;
}

.lang-current:hover {
  border-color: var(--accent);
  background: var(--surface);
}

.lang-flag { font-size: 1.1em; line-height: 1; }
.lang-code { font-weight: 600; letter-spacing: 0.05em; }
.lang-arrow {
  width: 14px;
  height: 14px;
  display: inline-block;
  transition: transform var(--transition);
}

.lang-switcher.open .lang-arrow { transform: rotate(180deg); }

.lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 230px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(201, 166, 245, 0.08);
  z-index: 999;
  max-height: 70vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.lang-switcher.open .lang-dropdown { display: block; }

.lang-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  text-decoration: none;
  color: var(--text);
  font-size: 0.9rem;
  transition: background var(--transition), color var(--transition);
  border-left: 3px solid transparent;
}

.lang-dropdown a:hover {
  background: rgba(201, 166, 245, 0.1);
  color: var(--accent);
  border-left-color: var(--accent);
}

.lang-dropdown a.active {
  background: rgba(201, 166, 245, 0.15);
  color: var(--accent-light);
  border-left-color: var(--accent);
  font-weight: 600;
}

.lang-dropdown a span.lflag { font-size: 1.15em; flex-shrink: 0; }
.lang-dropdown a span.lname { flex: 1; }


.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}


main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}


main h1,
main h2,
main h3,
main h4,
main h5,
main h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--accent-light);
  margin-top: 2em;
  margin-bottom: 0.65em;
}

main h1 { font-size: clamp(1.9rem, 4.5vw, 3rem); font-weight: 800; color: #fff; margin-top: 0; }
main h2 { font-size: clamp(1.45rem, 3vw, 2.1rem); }
main h3 { font-size: clamp(1.2rem, 2.5vw, 1.55rem); }
main h4 { font-size: 1.15rem; color: var(--accent); }
main h5 { font-size: 1rem; color: var(--accent); }
main h6 { font-size: 0.9rem; color: var(--accent-dim); text-transform: uppercase; letter-spacing: 0.08em; }

main p {
  margin-bottom: 1.35em;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 72ch;
}

main p:last-child { margin-bottom: 0; }

main a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(201, 166, 245, 0.4);
  text-underline-offset: 3px;
  transition: color var(--transition), text-decoration-color var(--transition);
}

main a:hover {
  color: var(--accent-light);
  text-decoration-color: var(--accent-light);
}

main strong, main b { font-weight: 700; color: #fff; }
main em, main i { font-style: italic; color: var(--accent-light); }

main ul,
main ol {
  padding-left: 1.6em;
  margin-bottom: 1.35em;
  color: rgba(255, 255, 255, 0.88);
}

main ul { list-style: none; }
main ul li { position: relative; padding-left: 1.2em; margin-bottom: 0.4em; }
main ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

main ol { list-style-type: decimal; }
main ol li { margin-bottom: 0.4em; }
main ol li::marker { color: var(--accent); font-weight: 600; }

main blockquote {
  border-left: 4px solid var(--accent);
  margin: 2em 0;
  padding: 1em 1.5em;
  background: var(--surface-2);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: rgba(255, 255, 255, 0.8);
}

main blockquote cite {
  display: block;
  margin-top: 0.5em;
  font-size: 0.85rem;
  color: var(--accent-dim);
  font-style: normal;
}

main code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  font-size: 0.88em;
  background: rgba(201, 166, 245, 0.12);
  color: var(--accent-light);
  padding: 0.15em 0.45em;
  border-radius: 5px;
  border: 1px solid rgba(201, 166, 245, 0.2);
}

main pre {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25em 1.5em;
  overflow-x: auto;
  margin: 1.5em 0;
  -webkit-overflow-scrolling: touch;
}

main pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.9rem;
}

main hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 2.5em 0;
}

main small {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.55);
}

main mark {
  background: rgba(201, 166, 245, 0.25);
  color: var(--accent-light);
  padding: 0.05em 0.25em;
  border-radius: 3px;
}


main img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin: 1.75em auto;
  object-fit: cover;
}

main figure {
  margin: 2em 0;
  text-align: center;
}

main figure img { margin: 0 auto 0.75em; }

main figcaption {
  font-size: 0.83rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.45;
  font-style: italic;
}


.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 2em 0;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  
}

main table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 500px; 
}

main thead tr {
  background: linear-gradient(90deg, var(--accent-deep) 0%, #4a1a7a 100%);
}

main thead th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

main tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

main tbody tr:last-child { border-bottom: none; }

main tbody tr:nth-child(even) { background: rgba(201, 166, 245, 0.04); }

main tbody tr:hover { background: rgba(201, 166, 245, 0.09); }

main tbody td {
  padding: 11px 16px;
  color: rgba(255, 255, 255, 0.85);
  vertical-align: middle;
}

main tfoot tr { background: var(--surface-2); }
main tfoot td {
  padding: 10px 16px;
  font-weight: 600;
  color: var(--accent);
  border-top: 1px solid var(--border);
}


.cta-wrap {
  text-align: center;
  margin: 2.5em 0;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 44px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #000;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  text-decoration: none;
  transition: box-shadow var(--transition), filter var(--transition), transform var(--transition);
  box-shadow: 0 4px 20px rgba(107, 63, 160, 0.45);
  position: relative;
  overflow: hidden;
}

.btn-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-cta:hover::before { opacity: 1; }

.btn-cta:hover {
  box-shadow: 0 6px 32px rgba(201, 166, 245, 0.55);
  filter: brightness(1.07);
  transform: translateY(-2px);
}

.btn-cta:active { transform: translateY(0); }


.img-placeholder {
  display: block;
  width: 100%;
  height: 320px;
  background: var(--surface-2);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  margin: 2em auto;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.img-placeholder::after {
  content: '[ Image ]';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--border);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}


.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 36px 24px 40px;
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
}

.footer-inner p {
  font-size: 0.8rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.42);
  text-align: center;
}




@media (max-width: 900px) {
  .header-inner { padding: 0 18px; gap: 14px; }

  main { padding: 40px 18px 64px; }
}


@media (max-width: 640px) {
  .header-inner {
    height: auto;
    min-height: 60px;
    flex-wrap: wrap;
    padding: 10px 16px;
    gap: 10px;
  }

  .logo-text { font-size: 1.1rem; }
  .logo-img { height: 32px; }

  .header-auth {
    gap: 8px;
  }

  .btn-login,
  .btn-register {
    padding: 7px 16px;
    font-size: 0.8rem;
  }

  .lang-current {
    padding: 7px 10px;
    font-size: 0.8rem;
  }

  .lang-code { display: none; }

  .lang-dropdown {
    right: -8px;
    min-width: 200px;
  }

  main {
    padding: 28px 16px 56px;
  }

  main h1 { font-size: 1.65rem; }
  main h2 { font-size: 1.3rem; }
  main h3 { font-size: 1.1rem; }

  main p { font-size: 0.95rem; }

  main img {
    border-radius: 8px;
    margin: 1.25em auto;
  }

  .img-placeholder {
    height: 200px;
  }

  .btn-cta {
    padding: 13px 32px;
    font-size: 0.95rem;
    width: 100%;
    max-width: 320px;
  }

  
  .table-wrap {
    margin: 1.5em -16px;
    border-radius: 0;
    border-left: none;
    border-right: none;
    width: calc(100% + 32px);
  }

  main table { font-size: 0.82rem; }
  main thead th,
  main tbody td,
  main tfoot td { padding: 9px 12px; }

  main blockquote { padding: 0.8em 1em; }

  .footer-inner p { font-size: 0.75rem; }
}

@media (max-width: 380px) {
  .btn-login { display: none; }
}