*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
  overflow: hidden;
}

body {
  height: 100%;
  overflow: hidden;
  width: 100vw;
  max-width: 100%;
  font-family: var(--font-sans, system-ui, sans-serif);
  background: var(--color-bg, #ffffff);
  color: var(--color-text, #111111);
}

#share-shell {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  overflow: hidden;
}

/* ── Header — portal chrome tokens ────────────────────────────── */
#share-header {
  display: flex;
  align-items: center;
  padding: 0 1rem;
  height: 2.4rem;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--mdb-sys-portal-topbar-bg, var(--mdb-header-bg, #1e1e1e));
  border-bottom: 1px solid var(--mdb-sys-portal-control-border, rgba(255,255,255,0.12));
}

#share-header-lhs {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: 0;
  flex: 1;
}

#share-logo {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  object-fit: contain;
  flex-shrink: 0;
  margin-right: 0.5rem;
}

#share-vault-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--mdb-sys-portal-item-color-active, #ffffff);
  white-space: nowrap;
  flex-shrink: 0;
}

#share-title-sep {
  font-size: 0.85rem;
  color: var(--mdb-sys-portal-item-color-active, #ffffff);
  flex-shrink: 0;
  margin-right: 0.35rem;
}

#share-title {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--mdb-sys-portal-item-color-active, #ffffff);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

@media (max-width: 600px) {
  #share-header { height: 3rem; }
}

/* ── Header RHS ───────────────────────────────────────────────── */
#share-header-rhs {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-shrink: 0;
  margin-left: auto;
}

#share-download {
  display: flex;
  align-items: center;
  color: var(--mdb-sys-portal-item-color-active, #ffffff);
  text-decoration: none;
  opacity: 0.8;
  padding: 0 0.25rem;
}

#share-download:hover {
  opacity: 1;
}

#share-download .material-symbols-outlined {
  font-size: 1.2rem;
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 20;
}

/* ── Participation gate ────────────────────────────────────────── */
#share-gate[hidden] {
  display: none;
}

#share-gate {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg, #ffffff);
  z-index: 100;
}

#share-gate-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 2rem;
  max-width: 340px;
  width: 100%;
  border: 1px solid var(--mdb-sys-portal-control-border, rgba(0,0,0,0.12));
  border-radius: 0.5rem;
  background: var(--color-bg, #ffffff);
}

#share-gate-prompt {
  font-size: 0.95rem;
  color: var(--color-text, #111111);
  margin-bottom: 0.25rem;
}

#share-gate-name,
#share-gate-email {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  border: 1px solid var(--mdb-sys-portal-control-border, rgba(0,0,0,0.2));
  border-radius: 0.375rem;
  background: var(--color-bg, #ffffff);
  color: var(--color-text, #111111);
  outline: none;
}

#share-gate-name:focus,
#share-gate-email:focus {
  border-color: var(--mdb-sys-portal-topbar-bg, #1e1e1e);
}

#share-gate-btn {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  border-radius: 0.375rem;
  background: var(--mdb-sys-portal-topbar-bg, #1e1e1e);
  color: var(--mdb-sys-portal-item-color-active, #ffffff);
}

#share-gate-btn:hover {
  opacity: 0.9;
}

/* ── Content / frame ──────────────────────────────────────────── */
#share-content {
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

#share-frame {
  width: 100%;
  height: 100%;
  border: none;
}

/* ── Error state ──────────────────────────────────────────────── */
#share-error[hidden] {
  display: none;
}

#share-error {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 2rem;
  text-align: center;
}

#share-error-message {
  font-size: 1rem;
  color: var(--color-text-muted, #6b7280);
}