:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #1f2933;
  --muted: #697586;
  --line: #d9dee7;
  --accent: #059669;
  --accent-dark: #047857;
  --soft: #f0fdf4;
  --danger: #dc2626;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, input, select { font: inherit; }

/* ── Login screen ─────────────────────────────────────────────────────── */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 48px 40px;
  max-width: 400px;
  width: 100%;
  text-align: center;
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.login-logo {
  font-size: 40px;
  margin-bottom: 12px;
}

.login-card h1 { font-size: 22px; margin: 0 0 6px; }
.login-card p { color: var(--muted); margin: 0 0 28px; font-size: 14px; }

.btn-sso {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 13px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-sso:hover { background: var(--accent-dark); }

/* ── App shell ────────────────────────────────────────────────────────── */
.sso-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}
.sso-avatar { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; background: #ddd; }
.sso-name { font-weight: 600; font-size: 14px; }
.sso-actions { display: flex; gap: 8px; align-items: center; margin-left: auto; }
.btn-sm { font-size: 12px; min-height: 28px; padding: 0 10px; border: 1px solid var(--line); border-radius: 6px; background: #fff; cursor: pointer; }
.btn-sm:hover { border-color: var(--accent); color: var(--accent-dark); }
.btn-link { color: var(--muted); font-size: 12px; text-decoration: none; padding: 4px 8px; border-radius: 4px; }
.btn-link:hover { color: var(--accent-dark); background: var(--soft); }

.hub-header {
  padding: 32px 24px 16px;
  max-width: 1100px;
  margin: 0 auto;
}
.hub-header .eyebrow { color: var(--accent-dark); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; margin: 0 0 4px; }
.hub-header h1 { font-size: 28px; margin: 0 0 6px; }
.hub-header p { color: var(--muted); margin: 0; }

/* ── Filter bar ───────────────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 12px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.filter-chip {
  padding: 5px 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.12s;
}
.filter-chip:hover { border-color: var(--accent); color: var(--accent-dark); }
.filter-chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── Module gallery ───────────────────────────────────────────────────── */
.module-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  padding: 16px 24px 40px;
  max-width: 1100px;
  margin: 0 auto;
}

.module-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow 0.15s, border-color 0.15s, transform 0.12s;
  overflow: hidden;
}
.module-thumb {
  display: block;
  width: calc(100% + 40px);
  margin: -20px -20px 4px;
  height: 130px;
  object-fit: cover;
  border-radius: 11px 11px 0 0;
  background: var(--soft);
}
.module-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.module-icon {
  font-size: 28px;
  line-height: 1;
}
.module-name {
  font-size: 15px;
  font-weight: 700;
  margin: 0;
}
.module-desc {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
  line-height: 1.4;
}
.module-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
  background: var(--soft);
  border-radius: 4px;
  padding: 2px 7px;
  align-self: flex-start;
}
.module-open {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-dark);
  margin-top: auto;
}

.status-bar { color: var(--muted); font-size: 13px; padding: 12px 24px; max-width: 1100px; margin: 0 auto; }

/* ── Top nav bar ─────────────────────────────────────────────────────────── */
.hub-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.hub-topbar-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 6px;
  flex-shrink: 0;
}

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

.hub-topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hub-topbar-module-icons {
  display: flex;
  align-items: center;
  gap: 2px;
}

.hub-topbar-module-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}

.hub-topbar-module-icon-btn:hover {
  background: var(--soft);
  color: var(--accent-dark);
}

.hub-topbar-module-icon-btn svg {
  stroke: currentColor;
}

.hub-topbar-user-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
  user-select: none;
}

[hidden] { display: none !important; }

@media (max-width: 600px) {
  .module-gallery { grid-template-columns: 1fr 1fr; gap: 10px; padding: 12px 14px 32px; }
  .hub-header { padding: 20px 14px 10px; }
  .filter-bar { padding: 8px 14px; }
  .login-card { padding: 32px 24px; }
}