/* ────────────────────────────────────────────────────────────
   App Header — shared dark-control component classes
   Used inside <header style="background:var(--bg-dark-hero);">
   on every authed page. Source: design system §10.
   ──────────────────────────────────────────────────────────── */

.btn-dark {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-dark-button);
  border: 1px solid var(--border-on-dark);
  border-radius: 9999px;
  padding: 8px 16px;
  color: #fff;
  font-family: inherit;
  font-size: 13px;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.2s;
}
.btn-dark:hover         { border-color: rgba(255,255,255,0.5); }
.btn-dark:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

/* Select variant — adds inline-SVG chevron + min-width.
   Use on a <select> alongside class="btn-dark btn-dark--select". */
.btn-dark--select {
  padding: 12px 40px 12px 16px;
  font-size: 14px;
  min-width: 220px;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'><path d='M3 4.5L6 7.5L9 4.5' stroke='rgba(255,255,255,0.7)' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

/* Danger variant — for the "Close survey" pill in the hero. */
.btn-dark--danger { background: var(--color-toxic); }
.btn-dark--danger:hover { border-color: rgba(255,255,255,0.5); }


/* ────────────────────────────────────────────────────────────
   Masthead — the editorial dark-hero band that sits at the top
   of every authed page. Replaces the old utility-bar + title
   strip pair. Rendered by shared/_masthead.html.
   ──────────────────────────────────────────────────────────── */

.mast        { background: var(--bg-dark-hero); color: #fff; }
.mast-wrap   { max-width: 1152px; margin: 0 auto; padding: 0 20px; }

/* Utility bar — brand + nav links + logout. 44px row with 24px top breathing. */
.mast-utility { display: flex; align-items: center; justify-content: space-between;
                height: 44px; padding-top: 24px; }
.mast-brand   { display: flex; align-items: center; gap: 11px; color: #fff;
                text-decoration: none; }
.mast-brand-img { width: 24px; height: 24px; border-radius: 6px; object-fit: contain;
                  flex: 0 0 auto; display: block; }
.mast-wordmark  { font-family: var(--font-sans); font-weight: 600; font-size: 15px;
                  letter-spacing: 0.01em; }
.mast-beta      { font-size: 11px; font-weight: 600; color: var(--brand-orange);
                  vertical-align: super; margin-left: 2px; }

.mast-nav      { display: flex; align-items: center; gap: 22px;
                 font-family: var(--font-sans); font-weight: 500; font-size: 13px; }
.mast-nav-link { color: rgba(255,255,255,0.6); text-decoration: none;
                 transition: color 150ms var(--ease-out); white-space: nowrap; }
.mast-nav-link:hover,
.mast-nav-link.is-active { color: #fff; }
.mast-nav-logout { color: rgba(255,255,255,0.4); max-width: 24ch;
                   overflow: hidden; text-overflow: ellipsis; }
.mast-nav-badge  { display: inline-block; margin-left: 4px; padding: 1px 7px;
                   background: var(--color-toxic); color: #fff; border-radius: 9999px;
                   font-size: 11px; font-weight: 600; vertical-align: 1px; }

/* Eyebrow rule — small uppercase label on a hairline. */
.mast-eyebrow       { display: flex; justify-content: space-between; align-items: baseline;
                      margin-top: 52px; padding-bottom: 16px;
                      border-bottom: 1px solid rgba(255,255,255,0.16); gap: 16px;
                      flex-wrap: wrap; }
.mast-eyebrow-left  { font-family: var(--font-sans); font-weight: 700; font-size: 11px;
                      text-transform: uppercase; letter-spacing: 0.22em; color: #7fd3c5;
                      white-space: nowrap; }
.mast-eyebrow-right { font-family: var(--font-sans); font-weight: 600; font-size: 11px;
                      text-transform: uppercase; letter-spacing: 0.18em;
                      color: rgba(255,255,255,0.45); white-space: nowrap; }

/* Headline + context. Serif Newsreader 400, italic teal accent word. */
.mast-title-block { padding-top: 30px; }
/* When there's no action bar below, give the hero the same bottom
   breathing room the action bar would have occupied so it doesn't end
   abruptly under the context line. */
.mast-title-block:last-child { padding-bottom: 80px; }
.mast-h1          { font-family: 'Newsreader', Georgia, 'Times New Roman', serif;
                    font-weight: 400; font-size: clamp(32px, 6vw, 56px);
                    line-height: 1.12; letter-spacing: -0.015em; color: #fff;
                    margin: 0; }
.mast-h1-accent   { font-style: italic; color: #7fd3c5; }
.mast-context     { margin-top: 20px; font-family: var(--font-sans); font-weight: 400;
                    font-size: 14px; color: rgba(255,255,255,0.5); letter-spacing: 0.01em; }

/* Action bar — section tabs on the left, save buttons on the right. */
.mast-actions { margin-top: 30px; padding: 20px 0 30px;
                border-top: 1px solid rgba(255,255,255,0.16);
                display: flex; justify-content: space-between; align-items: center;
                gap: 16px; flex-wrap: wrap; }

.mast-tabs    { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.mast-tab     { background: transparent; border: none; padding: 0 0 8px; margin: 0;
                cursor: pointer; font-family: var(--font-sans); font-weight: 500;
                font-size: 13.5px; text-decoration: none; color: rgba(255,255,255,0.55);
                border-bottom: 2px solid transparent; white-space: nowrap;
                transition: color 150ms var(--ease-out),
                            border-color 150ms var(--ease-out); }
.mast-tab:hover { color: #fff; }
.mast-tab.is-active,
.mast-tab[aria-selected="true"] { color: #fff; border-bottom-color: var(--teal); }
.mast-tab:focus-visible { outline: 2px solid #fff; outline-offset: 4px; border-radius: 2px; }

.mast-saves   { display: flex; gap: 8px; align-items: center; }
.mast-save    { display: inline-flex; align-items: center; gap: 8px;
                height: 38px; padding: 0 16px;
                border-radius: 9999px; border: 1px solid transparent;
                background: var(--bg-dark-button); color: #fff;
                font-family: var(--font-sans); font-weight: 600; font-size: 13px;
                white-space: nowrap; cursor: pointer;
                transition: background 150ms var(--ease-out),
                            border-color 150ms var(--ease-out),
                            color 150ms var(--ease-out); }
.mast-save:hover { background: var(--teal); border-color: var(--teal); color: #fff; }
.mast-save:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }