/* ── Shell-Layout — Header, Nav, Content ── */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-stack);
  font-size: var(--fs-body);
  color: var(--color-text);
  background: var(--color-bg);
}

a { color: inherit; text-decoration: none; }

/* ── Header (Logo-Leiste) ── */
.shell-header {
  height: var(--header-h);
  background: var(--color-navy);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}

.shell-header .brand {
  font-weight: 700;
  letter-spacing: 0.5px;
  font-size: 17px;
}

.shell-header .user {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-body);
}

.shell-header .avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-cyan);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
}

/* ── Nav-Leiste ── */
.shell-nav {
  height: var(--nav-h);
  background: var(--color-navy-mid);
  display: flex;
  align-items: stretch;
  padding: 0 16px;
  gap: 4px;
}

.shell-nav a {
  display: flex;
  align-items: center;
  padding: 0 14px;
  font-size: var(--fs-body);
  color: var(--color-muted);
  border-bottom: 2px solid transparent;
  transition: color 0.1s;
}

.shell-nav a:hover {
  color: var(--color-white);
}

.shell-nav a.is-active {
  color: var(--color-white);
  border-bottom: 2px solid var(--color-cyan);
}

/* ── Content ── */
.shell-content {
  background: var(--color-bg);
  padding: 24px;
  min-height: calc(100vh - var(--header-h) - var(--nav-h));
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 16px;
}

.page-header h1 {
  margin: 0;
  font-size: var(--fs-title);
  font-weight: 700;
}

.page-header .page-actions {
  display: flex;
  gap: 8px;
}

/* Navy-Banner für Seiten ohne klassischen Page-Header (z.B. Newsflash) */
.page-banner {
  background: var(--color-navy);
  color: var(--color-white);
  padding: 36px 24px;
  margin: -24px -24px 24px;
  text-align: center;
}

.page-banner h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-white);
}

/* Suchfeld im Navy-Banner: hellere transparente Variante */
.page-banner .search {
  max-width: 720px;
  margin: 16px auto 0;
}

.page-banner .search input {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--color-white);
}

.page-banner .search input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.page-banner .search input:focus {
  border-color: var(--color-cyan);
}

.page-banner .search::before {
  opacity: 0.7;
}