/* ============================================================
 * Senna shell — shared brand tokens + responsive header.
 * Imported by consumer-side pages (/trips, /directory, /business,
 * /preferences). Manager dashboard at /admin/* uses its own header.
 * ============================================================ */

@import url('/fonts/fonts.css');

:root {
  /* Senna brand guide v1.0 — porcelain palette, ink type, celadon accent. */
  --porcelain: #F4EFE6;
  --paper: #FAF7F1;
  --sand: #E8DFD0;
  --stone-light: #DDD5C7;
  --stone: #B8AE9F;
  --ink: #1B1714;
  --ink-soft: #4A433D;
  --ink-mute: #7A7368;
  --celadon: #6F8A7D;
  --celadon-deep: #4F6B5E;
  --brass: #B79268;
  --brass-deep: #8E6F4D;
  --warn: #C4924A;
  --error: #A04A3F;
  --hairline: 1px solid rgba(27,23,20,0.10);
  --serif: 'Cormorant Garamond', 'EB Garamond', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --cjk: 'Noto Sans SC', 'PingFang SC', sans-serif;
  --cjk-serif: 'Noto Serif SC', 'PingFang SC', serif;
}

/* ── Shell header ─────────────────────────────────────────────
 * Wordmark on the left. Right side: links + optional language
 * picker on desktop, hamburger that toggles a drop-panel on
 * mobile. Sits inline on the porcelain page (no card bg, no
 * border-bottom) per the brand "place before product" rule.
 * ─────────────────────────────────────────────────────────── */

.senna-shell-header {
  position: relative;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px 32px 12px;
  background: transparent;
  border: 0;
}

.senna-shell-wordmark {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 22px;
  line-height: 1;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.senna-shell-eyebrow {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-left: 14px;
  white-space: nowrap;
}

.senna-shell-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 22px;
}

.senna-shell-link {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 200ms cubic-bezier(0.22, 0.61, 0.36, 1), color 200ms;
}
.senna-shell-link:hover { border-bottom-color: var(--ink); }

/* Primary CTA in the nav — solid ink fill, brand button voice. Reserved
   for the single most important destination on each page (usually
   "Open the app" or "Begin"). */
.senna-shell-link--cta {
  background: var(--ink);
  color: var(--porcelain);
  border: 1px solid var(--ink);
  padding: 10px 18px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 200ms cubic-bezier(0.22, 0.61, 0.36, 1), border-color 200ms;
}
.senna-shell-link--cta:hover {
  background: var(--celadon-deep);
  border-color: var(--celadon-deep);
  border-bottom-color: var(--celadon-deep);
}

.senna-shell-langpicker {
  background: transparent;
  border: 1px solid var(--border, rgba(27,23,20,0.10));
  color: var(--ink);
  padding: 6px 10px;
  font-family: var(--sans);
  font-size: 12px;
  border-radius: 0;
  cursor: pointer;
}

.senna-shell-burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  margin-left: auto;
  padding: 0;
  align-items: center;
  justify-content: center;
}

/* Mobile drop-panel — hidden by default, slides under the header
   when .is-open is added to the root .senna-shell-header. */
.senna-shell-panel {
  display: none;
}

/* ── Mobile breakpoint ─────────────────────────────────────── */
@media (max-width: 700px) {
  .senna-shell-header {
    padding: 16px 20px 8px;
    flex-wrap: wrap;
  }
  .senna-shell-eyebrow { display: none; }
  .senna-shell-nav { display: none; }
  .senna-shell-burger {
    display: inline-flex;
  }
  .senna-shell-burger:active { background: rgba(27,23,20,0.06); }

  .senna-shell-panel {
    display: none;
    flex-basis: 100%;
    background: var(--paper);
    border-top: 1px solid rgba(27,23,20,0.10);
    border-bottom: 1px solid rgba(27,23,20,0.10);
    margin-top: 12px;
    padding: 12px 0;
    flex-direction: column;
  }
  .senna-shell-header.is-open .senna-shell-panel {
    display: flex;
  }
  .senna-shell-panel .senna-shell-link {
    padding: 14px 24px;
    border-bottom: 1px solid rgba(27,23,20,0.06);
  }
  .senna-shell-panel .senna-shell-link:last-child { border-bottom: 0; }
  .senna-shell-panel .senna-shell-link:hover { background: var(--sand); border-bottom-color: rgba(27,23,20,0.06); }
  .senna-shell-panel .senna-shell-link--cta {
    margin: 12px 24px 4px;
    text-align: center;
    border: 1px solid var(--ink);
  }
  .senna-shell-panel .senna-shell-langpicker {
    margin: 8px 24px;
  }
}