/* CUCL /home/ — мягкий светлый SaaS, без «режущих» контрастов */

:root {
  --bg-green: #3d9468;
  --bg-green-hover: #357a58;
  --bg-green-soft: #e6f0ea;
  --bg-green-border: #c5dccf;
  --bg-green-text: #357a58;
  --bg-blue: #4a7fd4;
  --bg-blue-soft: #eef3fa;
  --bg-page: #f2f4f6;
  --bg-muted: #e8ecef;
  --bg-card: #f8f9fb;
  --text: #2f3439;
  --text-secondary: #5c6570;
  --text-muted: #8b939e;
  --border: #dde2e8;
  --border-strong: #c8cfd8;
  --shadow-sm: 0 1px 2px rgba(20, 24, 32, 0.04);
  --shadow-md: 0 6px 22px rgba(20, 24, 32, 0.06);
  --shadow-lg: 0 14px 36px rgba(20, 24, 32, 0.07);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --container: 1180px;
  --nav-h: 64px;
  --font: 'Inter', -apple-system, 'Segoe UI', system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body.home-beget {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  color-scheme: light;
}

body.home-beget a {
  color: inherit;
  text-decoration: none;
}

body.home-beget a:hover { text-decoration: none; }

body.home-beget .bg-link {
  color: var(--text);
  font-weight: 500;
}

body.home-beget .bg-link:hover { color: var(--bg-green); }

body.home-beget .bg-footer-bottom a:hover { color: var(--text-secondary); }

body.home-beget img { max-width: 100%; height: auto; display: block; }

.bg-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* Progress */
body.home-beget .cucl-scroll-progress {
  background: linear-gradient(90deg, var(--bg-green), #6aab88);
  box-shadow: none;
  height: 2px;
  opacity: 0.85;
}

/* Top bar */
.bg-topbar {
  background: var(--bg-muted);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-secondary);
}

.bg-topbar .bg-container {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 20px;
  min-height: 36px;
}

.bg-topbar a {
  color: var(--text-secondary);
  text-decoration: none;
}

.bg-topbar a:hover { color: var(--text); text-decoration: none; }

/* Nav */
.bg-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(248, 249, 251, 0.9);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.bg-nav .bg-container {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 100%;
}

.bg-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}

.bg-brand:hover { text-decoration: none; }

.bg-brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--bg-green), #5a9f7a);
  display: grid;
  place-items: center;
  box-shadow: 0 2px 8px rgba(61, 148, 104, 0.18);
}

.bg-brand-logo img {
  width: 22px;
  height: 22px;
  filter: brightness(0) invert(1);
}

.bg-brand-name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.bg-brand-name span {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
}

.bg-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.bg-nav-links > a,
.bg-nav-drop > button {
  padding: 8px 14px;
  border: none;
  border-radius: 8px;
  background: transparent;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.bg-nav-links > a:hover,
.bg-nav-drop > button:hover,
.bg-nav-drop.open > button {
  background: var(--bg-muted);
  color: var(--text);
  text-decoration: none;
}

.bg-nav-drop { position: relative; }

.bg-nav-drop > button {
  display: flex;
  align-items: center;
  gap: 4px;
}

.bg-nav-drop > button svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s;
}

.bg-nav-drop.open > button svg { transform: rotate(180deg); }

.bg-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 280px;
  padding: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}

.bg-nav-drop.open .bg-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.bg-dropdown a {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
}

.bg-dropdown a:hover {
  background: var(--bg-muted);
  text-decoration: none;
}

.bg-dropdown-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg-green-soft);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.bg-dropdown-icon img { width: 22px; height: 22px; object-fit: contain; }

.bg-dropdown strong { display: block; font-size: 14px; }
.bg-dropdown span { display: block; font-size: 12px; color: var(--text-muted); margin-top: 2px; }

.bg-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
}

.bg-btn:hover { text-decoration: none; transform: translateY(-1px); }

.bg-btn--green {
  background: var(--bg-green);
  color: #fff;
  box-shadow: 0 2px 10px rgba(61, 148, 104, 0.22);
}

.bg-btn--green:hover { background: var(--bg-green-hover); color: #fff; }

.bg-btn--outline {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border-strong);
}

.bg-btn--outline:hover { background: var(--bg-muted); color: var(--text); }

.bg-btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid transparent;
}

.bg-btn--ghost:hover { background: var(--bg-muted); color: var(--text); }

.bg-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-card);
  cursor: pointer;
}

.bg-burger span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

.bg-mobile-menu {
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  z-index: 99;
  background: var(--bg-card);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.3s;
  border-top: 1px solid var(--border);
}

.bg-mobile-menu.open { transform: translateX(0); }

.bg-mobile-menu a {
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
}

.bg-mobile-menu a:hover { background: var(--bg-muted); text-decoration: none; }

.bg-mobile-label {
  padding: 12px 16px 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

/* Hero */
.bg-hero {
  padding: 56px 0 72px;
  background: linear-gradient(180deg, var(--bg-page) 0%, var(--bg-muted) 100%);
  overflow: hidden;
}

.bg-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 48px;
  align-items: center;
}

.bg-hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2rem, 4.2vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text);
}

.bg-hero-lead {
  margin: 0 0 28px;
  font-size: 18px;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 520px;
}

.bg-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Journal mockup */
.bg-mockup {
  position: relative;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.bg-mockup-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-muted);
  border-bottom: 1px solid var(--border);
}

.bg-mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-strong);
}

.bg-mockup-dot:nth-child(1) { background: #ff5f57; }
.bg-mockup-dot:nth-child(2) { background: #febc2e; }
.bg-mockup-dot:nth-child(3) { background: #28c840; }

.bg-mockup-url {
  flex: 1;
  margin-left: 8px;
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--bg-card);
  font-size: 12px;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.bg-mockup-body {
  display: grid;
  grid-template-columns: 180px 1fr;
  min-height: 320px;
}

.bg-mockup-sidebar {
  padding: 16px 12px;
  background: #fafbfc;
  border-right: 1px solid var(--border);
}

.bg-mockup-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  margin-bottom: 4px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.bg-mockup-nav-item.active {
  background: var(--bg-green-soft);
  color: var(--bg-green);
  font-weight: 600;
}

.bg-mockup-nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

.bg-mockup-main { padding: 20px; }

.bg-mockup-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.bg-mockup-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.bg-mockup-table th,
.bg-mockup-table td {
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.bg-mockup-table th {
  font-weight: 600;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.bg-mockup-grade {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 12px;
}

.bg-mockup-grade--5 { background: #dceee4; color: var(--bg-green-text); }
.bg-mockup-grade--4 { background: #e6f0ea; color: var(--bg-green-text); }
.bg-mockup-grade--3 { background: #f5eedc; color: #9a7340; }

.bg-mockup-badge {
  position: absolute;
  bottom: -12px;
  left: 24px;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.bg-mockup-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-green);
  animation: bg-pulse 2s ease infinite;
}

@keyframes bg-pulse {
  0%, 100% { opacity: 0.85; }
  50% { opacity: 0.55; }
}

/* Sections */
.bg-section {
  padding: 72px 0;
}

.bg-section--muted { background: var(--bg-muted); }

.bg-section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.bg-section-head h2 {
  margin: 0 0 14px;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.bg-section-head p {
  margin: 0;
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Bento products grid — как у Beget */
.bg-bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}

.bg-bento-card {
  grid-column: span 6;
  display: flex;
  flex-direction: column;
  padding: 28px;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
  min-height: 220px;
}

.bg-bento-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--border-strong);
  text-decoration: none;
}

.bg-bento-card--wide { grid-column: span 12; }

@media (min-width: 768px) {
  .bg-bento-card--college { grid-column: span 7; }
  .bg-bento-card--school { grid-column: span 5; }
  .bg-bento-card--teachers { grid-column: span 5; }
  .bg-bento-card--vpn { grid-column: span 7; }
}

.bg-bento-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}

.bg-bento-icon img { width: 28px; height: 28px; }

.bg-bento-icon--green { background: var(--bg-green-soft); }
.bg-bento-icon--blue,
.bg-bento-icon--green { background: var(--bg-green-soft); }
.bg-bento-icon--purple { background: #ede8f4; }
.bg-bento-icon--teal { background: #e6f2ef; }

.bg-bento-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.bg-bento-card p {
  margin: 0 0 auto;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.55;
  flex: 1;
}

.bg-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.bg-pill {
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-muted);
  border: 1px solid var(--border);
}

.bg-pill--green { background: var(--bg-green-soft); color: #357a58; border-color: #c5dccf; }

.bg-bento-link {
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--bg-green);
}

.bg-bento-card:hover .bg-bento-link { color: var(--bg-green-hover); }

/* Platform — интерактивный блок */
.bg-platform {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.bg-platform-copy h2 {
  margin: 0 0 16px;
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.bg-platform-copy > p {
  margin: 0 0 24px;
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.bg-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.bg-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-card);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s, box-shadow 0.2s;
}

.bg-tab svg { width: 16px; height: 16px; flex-shrink: 0; }

.bg-tab:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.bg-tab.is-active {
  background: var(--bg-green-soft);
  border-color: var(--bg-green-border);
  color: var(--bg-green-text);
  box-shadow: 0 2px 8px rgba(61, 148, 104, 0.08);
}

.bg-tab-panels { margin-bottom: 24px; }

.bg-tab-panel .bg-checklist { margin-bottom: 0; }

.bg-mockup--interactive,
.bg-mockup--trust {
  position: relative;
}

.bg-mockup--interactive .bg-mockup-screen,
.bg-mockup--trust .bg-mockup-screen {
  padding: 20px;
  min-height: 280px;
}

.bg-mockup-screen {
  animation: bg-screen-in 0.35s ease;
}

@keyframes bg-screen-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.bg-mini-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

/* Schedule mock */
.bg-schedule-list { display: grid; gap: 8px; }

.bg-schedule-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fafbfc;
}

.bg-schedule-item--now {
  border-color: var(--bg-green-border);
  background: var(--bg-green-soft);
}

.bg-schedule-time {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  min-width: 44px;
}

.bg-schedule-item strong {
  display: block;
  font-size: 13px;
}

.bg-schedule-item span {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
}

/* Chart mock */
.bg-chart {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 120px;
  margin-bottom: 20px;
  padding: 0 8px;
}

.bg-chart-bar {
  flex: 1;
  height: var(--h, 50%);
  min-height: 20%;
  border-radius: 8px 8px 4px 4px;
  background: linear-gradient(180deg, #d0e4d9, var(--bg-green-soft));
  position: relative;
  transition: height 0.5s ease;
}

.bg-chart-bar--active {
  background: linear-gradient(180deg, #6aab88, var(--bg-green));
}

.bg-chart-bar span {
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

.bg-chart-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 32px;
}

.bg-chart-stats div {
  padding: 12px;
  border-radius: 10px;
  background: var(--bg-muted);
  text-align: center;
}

.bg-chart-stats strong {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--bg-green);
}

.bg-chart-stats span {
  font-size: 11px;
  color: var(--text-muted);
}

/* Homework mock */
.bg-hw-card {
  padding: 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fafbfc;
  margin-bottom: 14px;
}

.bg-hw-meta {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.bg-hw-card p {
  margin: 0;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.bg-chat-preview { display: grid; gap: 10px; }

.bg-chat-msg {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg-muted);
}

.bg-chat-msg--teacher { background: var(--bg-green-soft); }

.bg-chat-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--border-strong);
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.bg-chat-avatar--green { background: var(--bg-green); }

.bg-chat-msg strong {
  display: block;
  font-size: 12px;
}

.bg-chat-msg span {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
}

/* Trust interactive block */
.bg-trust-block {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 24px;
  align-items: stretch;
}

.bg-trust-tabs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bg-trust-tab {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.bg-trust-tab:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.bg-trust-tab.is-active {
  border-color: var(--bg-green-border);
  background: var(--bg-green-soft);
  box-shadow: 0 4px 16px rgba(61, 148, 104, 0.07);
}

.bg-trust-tab-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  font-size: 18px;
  flex-shrink: 0;
}

.bg-trust-tab.is-active .bg-trust-tab-icon {
  background: var(--bg-card);
  border-color: var(--bg-green-border);
}

.bg-trust-tab-icon svg {
  width: 20px;
  height: 20px;
  color: var(--text-secondary);
}

.bg-trust-tab.is-active .bg-trust-tab-icon svg { color: var(--bg-green-text); }

.bg-trust-tab strong {
  display: block;
  font-size: 15px;
  color: var(--text);
}

.bg-trust-tab small {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.bg-trust-visual { min-height: 360px; }

.bg-mockup--trust .bg-trust-list {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* Status grid mock */
.bg-status-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 4px;
}

.bg-status-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fafbfc;
}

.bg-status-card--ok { border-color: var(--bg-green-border); }

.bg-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bg-green);
  flex-shrink: 0;
  animation: bg-pulse 2s ease infinite;
}

.bg-status-card strong {
  display: block;
  font-size: 12px;
}

.bg-status-card span {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
}

/* Roles mock */
.bg-roles { display: grid; gap: 8px; margin-bottom: 4px; }

.bg-role-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fafbfc;
  font-size: 13px;
}

.bg-role-badge {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  background: #fef3c7;
  color: #b45309;
}

.bg-role-badge--teacher { background: var(--bg-green-soft); color: var(--bg-green-text); }
.bg-role-badge--student { background: #f3e8ff; color: #7c3aed; }
.bg-role-badge--parent { background: var(--bg-muted); color: var(--text-secondary); }

.bg-role-check {
  color: var(--bg-green);
  font-weight: 700;
}

.bg-support-thread { display: grid; gap: 10px; }

.bg-support-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--bg-green-soft);
  font-size: 13px;
  font-weight: 600;
  color: var(--bg-green-text);
}

/* Feature split — legacy, kept for reference */
.bg-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.bg-split h2 {
  margin: 0 0 16px;
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.bg-split p {
  margin: 0 0 24px;
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.65;
}

.bg-checklist {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.bg-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text);
}

.bg-checklist li::before {
  content: '';
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--bg-green-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233d9468' stroke-width='3'%3E%3Cpath d='M5 12l5 5L19 7'/%3E%3C/svg%3E") center/12px no-repeat;
}

.bg-feature-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.bg-feature-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.bg-feature-card strong {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
}

.bg-feature-card span {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Trust grid */
.bg-trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.bg-trust-card {
  padding: 28px;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.bg-trust-card h3 {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 700;
}

.bg-trust-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.bg-trust-list li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 20px;
  position: relative;
}

.bg-trust-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--bg-green);
}

/* Stats row */
.bg-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.bg-stat-item strong {
  display: block;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.1;
}

.bg-stat-item span {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Migration banner */
.bg-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 40px 48px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #eef3ef 0%, #e6eee9 100%);
  border: 1px solid #d4e0d8;
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.bg-banner h2 {
  margin: 0 0 10px;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 700;
}

.bg-banner p {
  margin: 0;
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.55;
}

.bg-banner .bg-btn--outline {
  background: var(--bg-card);
  border-color: var(--border-strong);
  color: var(--text);
  white-space: nowrap;
}

.bg-banner .bg-btn--outline:hover { background: var(--bg-muted); }

/* Contacts */
.bg-contacts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.bg-contact-card {
  padding: 28px;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
}

.bg-contact-card h3 {
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 700;
}

.bg-contact-row {
  display: grid;
  gap: 14px;
}

.bg-contact-row small {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 3px;
}

.bg-contact-row a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
}

.bg-contact-row a:hover { color: var(--bg-green); }

/* Footer */
.bg-footer {
  padding: 48px 0 32px;
  background: var(--bg-muted);
  border-top: 1px solid var(--border);
}

.bg-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 12px;
}

.bg-footer-brand p {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 280px;
  line-height: 1.55;
}

.bg-footer-col h4 {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.bg-footer-col a {
  display: block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
}

.bg-footer-col a:hover { color: var(--bg-green); text-decoration: none; }

.bg-footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding-top: 0;
  margin-top: 4px;
  border-top: none;
  font-size: 13px;
  color: var(--text-muted);
}

.bg-footer-bottom a { color: var(--text-muted); }

/* Reveal */
.bg-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.bg-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 960px) {
  .bg-hero-grid,
  .bg-split,
  .bg-platform,
  .bg-trust-block { grid-template-columns: 1fr; }

  .bg-bento-card { grid-column: span 12 !important; }

  .bg-trust-tabs {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .bg-trust-tab { flex: 1 1 calc(50% - 8px); min-width: 140px; }

  .bg-chart-stats { grid-template-columns: 1fr; }

  .bg-stats-row { grid-template-columns: repeat(2, 1fr); }

  .bg-footer-grid { grid-template-columns: 1fr 1fr; }

  .bg-mockup-body { grid-template-columns: 1fr; }

  .bg-mockup-sidebar {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .bg-mockup-nav-item { white-space: nowrap; margin-bottom: 0; }
}

@media (max-width: 720px) {
  .bg-nav-links,
  .bg-nav-actions .bg-btn--green { display: none; }

  .bg-burger { display: flex; }

  .bg-contacts { grid-template-columns: 1fr; }

  .bg-feature-cards { grid-template-columns: 1fr; }

  .bg-footer-grid { grid-template-columns: 1fr; }

  .bg-banner { padding: 28px 24px; }

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