:root {
  --cb68-bg: #02060d;
  --cb68-bg-soft: #07101a;
  --cb68-panel: rgba(8, 15, 27, 0.94);
  --cb68-panel-2: rgba(9, 17, 30, 0.88);
  --cb68-line: rgba(126, 173, 220, 0.18);
  --cb68-line-strong: rgba(126, 173, 220, 0.30);
  --cb68-text: #f5f8fc;
  --cb68-muted: #9db1c8;
  --cb68-blue-1: #b7ecff;
  --cb68-blue-2: #86d8ff;
  --cb68-blue-3: #63bbe8;
  --cb68-orange-1: #ff9947;
  --cb68-orange-2: #ff7b1f;
  --cb68-orange-3: #cf5700;
  --cb68-shadow-blue: 0 0 24px rgba(99, 187, 232, 0.18);
  --cb68-shadow-orange: 0 0 24px rgba(255, 123, 31, 0.22);
  --cb68-radius: 18px;
  --cb68-radius-sm: 12px;
  --cb68-container: 1440px;
  --cb68-nav-button-height: 56px;
  --cb68-page-max: 1820px;
}

html { scroll-behavior: smooth; }
body {
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 123, 31, 0.12), transparent 18%),
    radial-gradient(circle at 84% 14%, rgba(99, 187, 232, 0.18), transparent 18%),
    linear-gradient(180deg, #02060d 0%, #07101a 45%, #03070e 100%);
  color: var(--cb68-text);
  font-family: Inter, 'Segoe UI', Roboto, Arial, sans-serif;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(121, 181, 231, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(121, 181, 231, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, #000 48%, transparent 100%);
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0, transparent 2.2%, rgba(255, 123, 31, 0.16) 2.26%, transparent 2.34%, transparent 97.66%, rgba(255, 123, 31, 0.16) 97.74%, transparent 97.82%),
    linear-gradient(180deg, transparent 0, transparent 90.5%, rgba(255, 123, 31, 0.10) 90.7%, transparent 90.85%);
  opacity: .4;
  z-index: 0;
}

body .site,
body .singular .site,
body .is-dark-theme .site {
  background: transparent;
}

.cb68-page-shell {
  position: relative;
  z-index: 1;
  width: min(var(--cb68-page-max), calc(100vw - 32px));
  margin: 18px auto;
  border: 1px solid rgba(126, 173, 220, 0.16);
  background: rgba(2, 6, 12, 0.74);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.48), inset 0 0 0 1px rgba(255,255,255,0.02);
  backdrop-filter: blur(10px);
  overflow: hidden;
  position: relative;
}

.cb68-page-shell::before,
.cb68-page-shell::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  border: 1px solid rgba(255, 123, 31, 0.7);
  box-shadow: 0 0 12px rgba(255, 123, 31, 0.45);
  z-index: 5;
}
.cb68-page-shell::before { top: 12px; left: 12px; }
.cb68-page-shell::after { right: 12px; bottom: 12px; }

.cb68-topbar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--cb68-line);
  background: linear-gradient(180deg, rgba(8, 15, 27, 0.98), rgba(5, 11, 20, 0.90));
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
}

.cb68-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 240px;
}

.cb68-brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(126, 173, 220, 0.18);
  box-shadow: inset 0 0 18px rgba(126, 173, 220, 0.06), var(--cb68-shadow-blue);
  background: #07101a;
  display: inline-flex;
}

.cb68-brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cb68-brand-title {
  margin: 0;
  font-size: 2rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--cb68-text);
  text-decoration: none;
  white-space: nowrap;
}

.cb68-desktop-nav {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.cb68-nav-list,
.cb68-auth-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.cb68-nav-list {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(128px, 1fr);
  gap: 12px;
  justify-content: center;
  min-width: 0;
}

.cb68-auth-links {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 120px;
  gap: 12px;
  justify-content: end;
}

.cb68-nav-list li,
.cb68-auth-links a {
  min-width: 0;
}

.cb68-nav-list a,
.cb68-auth-link,
.cb68-menu-link,
.cb68-cta,
.cb68-panel,
.cb68-button {
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
}

.cb68-nav-list a,
.cb68-auth-link {
  min-height: var(--cb68-nav-button-height);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0 20px;
  border-radius: 10px;
  border: 1px solid rgba(151, 189, 227, 0.18);
  background: linear-gradient(180deg, rgba(16, 26, 41, 0.96), rgba(8, 14, 22, 0.94));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02);
  color: #f3f7fd;
  font-size: 1rem;
  font-weight: 700;
  position: relative;
  text-align: center;
  white-space: nowrap;
  text-decoration: none;
}

.cb68-nav-list a:hover,
.cb68-auth-link:hover,
.cb68-menu-link:hover,
.cb68-cta:hover,
.cb68-panel:hover,
.cb68-button:hover {
  transform: translateY(-1px);
  border-color: rgba(126, 173, 220, 0.34);
  box-shadow: var(--cb68-shadow-blue);
}

.cb68-nav-list .current-menu-item > a::after,
.cb68-nav-list .current_page_item > a::after {
  content: '';
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: -7px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cb68-orange-1), var(--cb68-orange-2));
  box-shadow: var(--cb68-shadow-orange);
}

.cb68-auth-link.is-login { color: var(--cb68-blue-2); }
.cb68-auth-link.is-register {
  background: linear-gradient(180deg, rgba(32, 49, 73, 0.96), rgba(18, 30, 47, 0.96));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04), var(--cb68-shadow-blue);
}

.cb68-mobile-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  border: 1px solid rgba(126, 173, 220, 0.18);
  background: linear-gradient(180deg, rgba(16, 26, 41, 0.96), rgba(8, 14, 22, 0.94));
  color: var(--cb68-text);
  cursor: pointer;
  place-items: center;
  justify-self: end;
}

.cb68-mobile-toggle span,
.cb68-mobile-toggle span::before,
.cb68-mobile-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
  position: relative;
  transition: .2s ease;
}
.cb68-mobile-toggle span::before,
.cb68-mobile-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
}
.cb68-mobile-toggle span::before { top: -6px; }
.cb68-mobile-toggle span::after { top: 6px; }

.cb68-mobile-drawer {
  display: none;
  grid-column: 1 / -1;
  gap: 12px;
  padding-top: 6px;
}

.cb68-layout {
  display: grid;
  grid-template-columns: 308px 1fr;
  gap: 18px;
  padding: 18px;
}

.cb68-sidebar {
  display: grid;
  gap: 14px;
  align-content: start;
}

.cb68-menu-link,
.cb68-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--cb68-radius-sm);
  border: 1px solid rgba(126, 173, 220, 0.16);
  background: linear-gradient(180deg, rgba(8, 15, 27, 0.95), rgba(5, 10, 18, 0.92));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02);
}

.cb68-menu-link::before,
.cb68-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.03), transparent 22%, transparent 78%, rgba(133,214,255,0.03));
  pointer-events: none;
}

.cb68-menu-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  font-weight: 700;
  color: var(--cb68-text);
  text-decoration: none;
}

.cb68-menu-link.is-active {
  border-color: rgba(255, 123, 31, 0.42);
  background: linear-gradient(180deg, rgba(124, 58, 17, 0.96), rgba(74, 29, 8, 0.96));
  box-shadow: var(--cb68-shadow-orange);
}

.cb68-menu-link-main {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.cb68-menu-icon,
.cb68-item-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(156, 202, 238, 0.20);
  background: rgba(255,255,255,0.02);
  color: #dceafa;
  flex-shrink: 0;
}

.cb68-menu-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.cb68-menu-link.is-active .cb68-menu-icon {
  border-color: rgba(255, 203, 165, 0.34);
}

.cb68-chevron {
  color: #bfd0e5;
  opacity: .85;
  font-size: .95rem;
  flex-shrink: 0;
}

.cb68-sidebar-visual {
  min-height: 430px;
  padding: 0;
  background:
    linear-gradient(180deg, rgba(6, 12, 21, 0.1), rgba(3, 6, 12, 0.4)),
    url('../images/sidebar-lab.jpg') center/cover no-repeat;
}

.cb68-main-content {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.cb68-hero-panel {
  padding: 20px;
  min-height: 544px;
}

.cb68-hero-frame {
  position: relative;
  min-height: 504px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(126, 173, 220, 0.16);
  background:
    url('../images/hero-main.jpg') center/cover no-repeat,
    #060b12;
  display: flex;
  align-items: end;
  justify-content: center;
  padding: 26px;
}

.cb68-hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 8, 14, 0.12) 0%, rgba(4, 8, 14, 0.18) 32%, rgba(3, 7, 11, 0.44) 100%),
    radial-gradient(circle at 50% 65%, rgba(180, 230, 255, 0.08), transparent 22%),
    linear-gradient(90deg, rgba(255, 123, 31, 0.08), transparent 18%, transparent 82%, rgba(106, 204, 255, 0.08));
}

.cb68-hero-content {
  position: relative;
  z-index: 2;
  width: min(980px, 100%);
  display: grid;
  justify-items: center;
  gap: 18px;
  text-align: center;
  padding-top: 280px;
}

.cb68-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(126, 173, 220, 0.18);
  background: rgba(7, 14, 24, 0.72);
  color: var(--cb68-blue-1);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}

.cb68-hero-content h1,
.cb68-page-header h1,
.cb68-page-header h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1.08;
}

.cb68-hero-content h1 span {
  color: var(--cb68-blue-2);
  text-shadow: 0 0 16px rgba(133, 214, 255, 0.28);
}

.cb68-hero-content p,
.cb68-page-header p {
  margin: 0;
  max-width: 880px;
  font-size: 1.02rem;
  line-height: 1.6;
  color: #deebf8;
  text-shadow: 0 2px 8px rgba(0,0,0,.32);
}

.cb68-cta-row,
.cb68-card-actions,
.cb68-button-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  margin-top: 4px;
}

.cb68-cta,
.cb68-button {
  min-width: 220px;
  text-align: center;
  padding: 16px 24px;
  border-radius: 14px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: .01em;
  border: 1px solid transparent;
  color: #fff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.cb68-cta.primary,
.cb68-button.primary {
  background: linear-gradient(180deg, var(--cb68-orange-1), var(--cb68-orange-3));
  box-shadow: 0 12px 30px rgba(207, 87, 0, 0.28), inset 0 0 0 1px rgba(255,255,255,0.08);
}

.cb68-cta.secondary,
.cb68-button.secondary {
  background: linear-gradient(180deg, #8fc3f0, #5f90ba);
  box-shadow: 0 12px 30px rgba(86, 137, 188, 0.22), inset 0 0 0 1px rgba(255,255,255,0.08);
}

.cb68-card-grid,
.cb68-course-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.cb68-card-panel,
.cb68-course-card,
.cb68-single-course,
.cb68-entry-content,
.cb68-page-header,
.cb68-form-shell {
  padding: 20px;
}

.cb68-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.cb68-panel-header h2 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.2;
  font-weight: 800;
}

.cb68-panel-dots {
  display: inline-flex;
  gap: 5px;
}
.cb68-panel-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.75);
  opacity: .85;
}

.cb68-item-list,
.cb68-post-list {
  display: grid;
  gap: 8px;
}

.cb68-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
  padding: 13px 4px;
  border-top: 1px solid rgba(126, 173, 220, 0.11);
}
.cb68-item:first-child { border-top: 0; }
.cb68-item strong,
.cb68-course-card h2,
.cb68-article-card h2 {
  display: block;
  margin: 0 0 4px;
  font-size: 1rem;
  line-height: 1.35;
  font-weight: 700;
}
.cb68-item p,
.cb68-course-card p,
.cb68-article-card .entry-summary,
.cb68-course-card .entry-summary,
.cb68-entry-content,
.cb68-note-box,
.cb68-table,
.cb68-main-content .entry-content,
.cb68-form-shell,
.cb68-form-shell label {
  color: var(--cb68-muted);
  font-size: .94rem;
  line-height: 1.55;
}

.cb68-item a,
.cb68-course-card a,
.cb68-article-card a,
.cb68-single-course a,
.cb68-page-shell a:not(.cb68-nav-list a):not(.cb68-auth-link):not(.cb68-menu-link):not(.cb68-cta):not(.cb68-button) {
  color: var(--cb68-blue-1);
}

.cb68-two-column {
  display: grid;
  grid-template-columns: 1.3fr .9fr;
  gap: 18px;
}

.cb68-form-grid {
  display: grid;
  gap: 14px;
}

.cb68-form-group {
  display: grid;
  gap: 8px;
}

.cb68-form-group label,
.cb68-form-shell label {
  font-weight: 700;
  color: var(--cb68-text);
}

.cb68-form-group input,
.cb68-form-group select,
.cb68-form-group textarea,
.cb68-form-shell input[type="text"],
.cb68-form-shell input[type="password"] {
  width: 100%;
  min-height: 52px;
  border-radius: 10px;
  border: 1px solid rgba(126, 173, 220, 0.16);
  background: rgba(5, 10, 18, 0.96);
  color: var(--cb68-text);
  padding: 14px 16px;
  font: inherit;
  outline: none;
}

.cb68-form-shell input[type="submit"] {
  min-height: 50px;
  padding: 0 18px;
  border-radius: 10px;
  border: 1px solid rgba(255, 153, 71, 0.28);
  background: linear-gradient(180deg, var(--cb68-orange-1), var(--cb68-orange-3));
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.cb68-form-group input:focus,
.cb68-form-group select:focus,
.cb68-form-group textarea:focus,
.cb68-form-shell input[type="text"]:focus,
.cb68-form-shell input[type="password"]:focus {
  border-color: rgba(126, 173, 220, 0.34);
  box-shadow: 0 0 0 3px rgba(99, 187, 232, 0.10);
}

.cb68-note-box {
  border-radius: 10px;
  border: 1px solid rgba(126, 173, 220, 0.16);
  background: rgba(255,255,255,0.02);
  padding: 14px 16px;
}

.cb68-table-wrap {
  overflow: auto;
  border-radius: 12px;
  border: 1px solid rgba(126, 173, 220, 0.12);
  background: rgba(255,255,255,0.01);
}

.cb68-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

.cb68-table th,
.cb68-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(126, 173, 220, 0.10);
}
.cb68-table th {
  color: var(--cb68-blue-1);
  font-weight: 700;
  background: rgba(255,255,255,0.015);
}

.cb68-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 700;
  border: 1px solid rgba(126, 173, 220, 0.16);
  background: rgba(255,255,255,0.02);
  color: var(--cb68-text);
}
.cb68-status::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cb68-blue-2);
  box-shadow: 0 0 10px rgba(133, 214, 255, 0.35);
}

.cb68-meta-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.cb68-article-card {
  padding: 18px 20px;
  border-radius: var(--cb68-radius-sm);
  border: 1px solid rgba(126, 173, 220, 0.16);
  background: linear-gradient(180deg, rgba(8, 15, 27, 0.95), rgba(5, 10, 18, 0.92));
}

.cb68-footer {
  padding: 18px 28px 28px;
  color: var(--cb68-muted);
  font-size: .92rem;
  text-align: center;
}

.cb68-main-content svg,
.cb68-sidebar svg,
.cb68-topbar svg {
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 1280px) {
  .cb68-topbar { grid-template-columns: auto minmax(0, 1fr); }
  .cb68-desktop-nav { grid-template-columns: 1fr; gap: 12px; }
  .cb68-nav-list { grid-auto-columns: minmax(108px, 1fr); }
  .cb68-auth-links { justify-content: center; }
}

@media (max-width: 1200px) {
  .cb68-layout { grid-template-columns: 1fr; }
  .cb68-card-grid,
  .cb68-course-grid,
  .cb68-two-column { grid-template-columns: 1fr; }
  .cb68-sidebar-visual { min-height: 260px; }
}

@media (max-width: 900px) {
  .cb68-page-shell {
    width: calc(100vw - 16px);
    margin: 8px auto;
  }
  .cb68-topbar {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 16px;
  }
  .cb68-desktop-nav { display: none; }
  .cb68-mobile-toggle { display: grid; }
  .cb68-mobile-drawer.is-open { display: grid; }
  .cb68-mobile-drawer .cb68-nav-list,
  .cb68-mobile-drawer .cb68-auth-links {
    grid-auto-flow: row;
    grid-template-columns: 1fr;
    grid-auto-columns: unset;
  }
  .cb68-layout {
    padding: 12px;
    gap: 12px;
  }
  .cb68-hero-panel {
    min-height: 430px;
    padding: 12px;
  }
  .cb68-hero-frame {
    min-height: 392px;
    padding: 18px;
  }
  .cb68-hero-content { padding-top: 160px; }
}

@media (max-width: 720px) {
  .cb68-brand-title { font-size: 1.48rem; }
  .cb68-hero-content p,
  .cb68-page-header p { font-size: .95rem; }
  .cb68-cta-row,
  .cb68-button-row { gap: 14px; }
  .cb68-cta,
  .cb68-button { min-width: 100%; }
  .cb68-table { min-width: 480px; }
}