:root {
  --bg: #f8f3ec;
  --panel: #fffaf4;
  --ink: #202124;
  --muted: #65615b;
  --line: #ded4c8;
  --accent: #235c5a;
  --accent-2: #b76f3f;
  --white: #fff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 56px);
  background: rgba(248, 243, 236, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
}

.nav a,
.link-button {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  text-decoration: none;
}

main {
  padding: 40px clamp(18px, 4vw, 56px) 80px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: 32px;
  max-width: 1120px;
  margin: 0 auto;
  align-items: center;
  min-height: 72vh;
}

.eyebrow {
  color: var(--accent-2);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 13px;
}

h1 {
  margin: 12px 0;
  font-size: clamp(36px, 6vw, 72px);
  line-height: 0.95;
}

h2 {
  margin: 0 0 12px;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.45;
}

.actions,
.login-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  background: var(--accent);
  color: var(--white);
}

.button.ghost {
  background: transparent;
  color: var(--accent);
}

.button.full {
  width: 100%;
}

.hero-panel,
.form-card,
.disabled-card,
.program-step,
.entry,
.features article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.hero-panel {
  padding: 28px;
}

.moon {
  font-size: 74px;
  color: var(--accent);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
}

.features article {
  padding: 20px;
}

.features p,
.muted {
  color: var(--muted);
  line-height: 1.5;
}

.narrow {
  max-width: 760px;
  margin: 0 auto 36px;
}

.narrow h1 {
  font-size: clamp(34px, 5vw, 56px);
}

.flash-wrap {
  max-width: 760px;
  margin: 16px auto 0;
  padding: 0 18px;
}

.flash {
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.flash.success {
  border-color: #a7c6a1;
}

.flash.warning {
  border-color: #d7b26d;
}

.disabled-card {
  width: 100%;
  display: grid;
  gap: 6px;
  padding: 16px;
  color: var(--muted);
}

.disabled-card b {
  color: var(--ink);
}

.vk-shell {
  min-height: calc(100vh - 180px);
  display: grid;
  place-items: center;
}

.vk-panel {
  width: min(100%, 460px);
  display: grid;
  gap: 14px;
}

.vk-panel h1 {
  font-size: clamp(40px, 10vw, 64px);
}

.status-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
  padding: 14px;
  line-height: 1.45;
}

.form-card {
  display: grid;
  gap: 16px;
  padding: 20px;
}

label {
  display: grid;
  gap: 8px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  padding: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.entry-list,
.program-list {
  display: grid;
  gap: 12px;
}

.entry,
.program-step {
  padding: 18px;
}

.entry span,
.program-step span {
  color: var(--muted);
}

.program-step .button {
  margin-top: 12px;
}

.back-link {
  color: var(--muted);
  text-decoration: none;
}

.lesson-text,
.video-box,
.price-card {
  margin-top: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 20px;
  line-height: 1.65;
}

.price-card {
  display: grid;
  gap: 12px;
}

.price-card strong {
  font-size: 34px;
}

.admin-wide {
  max-width: 1180px;
  margin: 0 auto;
}

.admin-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0 32px;
}

.stats-grid div {
  display: grid;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 18px;
}

.stats-grid b {
  font-size: 30px;
}

.stats-grid span {
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  margin-bottom: 32px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
}

.small-button {
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: var(--white);
  cursor: pointer;
  padding: 8px 10px;
}

.admin-lessons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  align-self: end;
  min-height: 45px;
}

.checkbox-row input {
  width: auto;
}

@media (max-width: 760px) {
  .topbar,
  .nav,
  .hero,
  .features,
  .form-grid,
  .stats-grid,
  .admin-lessons {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: flex-start;
  }

  .nav {
    display: grid;
    gap: 8px;
    justify-items: end;
  }
}