:root {
  --hub-bg: #f4ece8;
  --hub-bg-soft: #fbf7f2;
  --hub-panel: #ffffff;
  --hub-text: #1b1d20;
  --hub-muted: #4f545c;
  --hub-accent: #ba2a22;
  --hub-accent-dark: #8f1f1b;
  --hub-border: rgba(27, 29, 32, 0.14);
  --hub-shadow: 0 12px 34px rgba(27, 29, 32, 0.08);
  --hub-radius: 18px;
  --hub-max: 1200px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font: 16px/1.6 "Manrope", "Segoe UI", sans-serif;
  color: var(--hub-text);
  background:
    radial-gradient(1100px 700px at 90% -10%, rgba(186, 42, 34, 0.14), transparent 60%),
    radial-gradient(760px 620px at 0% 10%, rgba(186, 42, 34, 0.1), transparent 62%),
    linear-gradient(180deg, var(--hub-bg-soft) 0%, var(--hub-bg) 100%);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -44px;
  z-index: 999;
  background: #000;
  color: #fff;
  padding: 10px 12px;
  border-radius: 10px;
}

.skip-link:focus {
  top: 12px;
}

.hub-container {
  width: min(calc(100% - 32px), var(--hub-max));
  margin: 0 auto;
}

.hub-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--hub-border);
  background: rgba(251, 247, 242, 0.9);
  backdrop-filter: blur(8px);
}

.nav-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--hub-accent);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-links a {
  color: var(--hub-text);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 10px;
  font-weight: 600;
}

.nav-links a[aria-current="page"] {
  background: rgba(186, 42, 34, 0.14);
  color: var(--hub-accent-dark);
}

.hero {
  padding: 52px 0 24px;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--hub-muted);
}

h1,
h2,
h3 {
  font-family: "Fraunces", Georgia, serif;
  line-height: 1.2;
}

h1 {
  margin: 10px 0 10px;
  font-size: clamp(2rem, 5vw, 3.2rem);
}

.hero-subtitle {
  margin: 0;
  font-size: 1.125rem;
  color: var(--hub-accent-dark);
  font-weight: 700;
}

.hero-description {
  margin: 10px 0 16px;
  max-width: 68ch;
  color: var(--hub-muted);
}

.language-block {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--hub-panel);
  border: 1px solid var(--hub-border);
  border-radius: 12px;
  padding: 10px 12px;
}

.input-select {
  min-width: 128px;
  font: inherit;
  border: 1px solid var(--hub-border);
  border-radius: 10px;
  background: #fff;
  padding: 8px 10px;
}

.sections {
  display: grid;
  gap: 18px;
  padding-bottom: 60px;
}

.hub-card {
  background: var(--hub-panel);
  border: 1px solid var(--hub-border);
  border-radius: var(--hub-radius);
  box-shadow: var(--hub-shadow);
  padding: 22px;
}

.section-head {
  margin-bottom: 12px;
}

.section-head h2 {
  margin: 0 0 6px;
}

.section-head p {
  margin: 0;
  color: var(--hub-muted);
}

.embed {
  width: 100%;
  border: 1px solid var(--hub-border);
  border-radius: 14px;
  background: #fff;
  min-height: 320px;
}

.actions {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  text-decoration: none;
  cursor: pointer;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 700;
  min-height: 44px;
}

.button-primary {
  background: var(--hub-accent);
  color: #fff;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--hub-accent-dark);
}

.button-soft {
  background: rgba(186, 42, 34, 0.1);
  color: var(--hub-accent-dark);
}

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

.kit-item {
  border: 1px solid var(--hub-border);
  border-radius: 12px;
  padding: 14px;
  background: #fff;
}

.kit-item h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.kit-item p {
  margin: 0 0 10px;
  color: var(--hub-muted);
}

.collapsible {
  border: 1px dashed var(--hub-border);
  border-radius: 12px;
  padding: 12px;
  background: rgba(186, 42, 34, 0.04);
}

.hub-footer {
  border-top: 1px solid var(--hub-border);
  color: var(--hub-muted);
  padding: 20px 0 40px;
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 0;
}

.login-card {
  width: min(100%, 520px);
}

.login-form {
  display: grid;
  gap: 10px;
}

.login-form input {
  width: 100%;
  font: inherit;
  border: 1px solid var(--hub-border);
  border-radius: 10px;
  background: #fff;
  padding: 10px 12px;
}

.error-text {
  color: #9d1e18;
  font-weight: 600;
  margin: 10px 0 0;
}

a:focus-visible,
button:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 2px solid rgba(186, 42, 34, 0.36);
  outline-offset: 2px;
}

@media (max-width: 980px) {
  .kit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hub-card {
    padding: 16px;
  }
}

@media (max-width: 620px) {
  .kit-grid {
    grid-template-columns: 1fr;
  }

  .nav-inner {
    flex-direction: column;
    justify-content: center;
    padding: 10px 0;
  }
}