:root {
  --paper: #f6f3ec;
  --card: #fffdf8;
  --ink: #1c1a17;
  --muted: #6b655c;
  --line: #e2dccf;
  --accent: #8a2c35;
  --accent-ink: #ffffff;
  --ok: #2f6b3f;
  --warn: #8a5a12;
  --shadow: 0 1px 2px rgba(28, 26, 23, .06), 0 8px 24px rgba(28, 26, 23, .06);
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15140f;
    --card: #1e1c17;
    --ink: #ece7dc;
    --muted: #a39b8c;
    --line: #34302a;
    --accent: #d9737c;
    --accent-ink: #1a1015;
    --ok: #7cc28d;
    --warn: #e0b067;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
}
[hidden] { display: none !important; }

.brand {
  font-family: var(--serif);
  font-size: 2rem;
  letter-spacing: .01em;
  display: flex;
  align-items: center;
  gap: .4rem;
}
.brand.small { font-size: 1.35rem; }
.mark {
  display: inline-grid;
  place-items: center;
  width: 1.5em;
  height: 1.5em;
  border-radius: .35em;
  background: var(--ink);
  color: var(--paper);
  font-size: .7em;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 600; margin: 0; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.6rem; margin-bottom: 1rem; }
h3 { font-size: 1.25rem; }

.gate {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}
.gate-card {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 32px 28px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 20px;
}

.stack { display: grid; gap: 14px; }
.lede { margin: 0; color: var(--muted); }
.hint { margin: -8px 0 0; color: var(--muted); font-size: .85rem; }
.note { margin: 0; padding: 10px 12px; border-radius: 8px; background: color-mix(in srgb, var(--warn) 12%, transparent); color: var(--ink); font-size: .92rem; }
.error { margin: 0; min-height: 0; color: var(--accent); font-size: .92rem; }
.error:empty { display: none; }

label { display: grid; gap: 6px; font-size: .9rem; color: var(--muted); }
input {
  font: inherit;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  width: 100%;
  min-height: 44px;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
input[readonly] { color: var(--muted); }

.pw { position: relative; display: block; }
.pw input { padding-right: 46px; }
.eye {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  display: grid;
  place-items: center;
}
.eye svg { width: 20px; height: 20px; }
.eye:hover { color: var(--ink); }

button { font: inherit; cursor: pointer; }
.primary, .secondary {
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  font-weight: 600;
}
.primary { background: var(--accent); color: var(--accent-ink); }
.secondary { background: transparent; color: var(--ink); border-color: var(--line); }
.primary:disabled { opacity: .6; cursor: progress; }
.link { background: none; border: 0; color: var(--muted); text-decoration: underline; padding: 4px; justify-self: center; }

.top {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.tabs { display: flex; gap: 4px; flex: 1; }
.tab {
  border: 0;
  background: none;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 8px;
  min-height: 40px;
}
.tab[aria-current="page"] { color: var(--ink); background: var(--card); box-shadow: inset 0 0 0 1px var(--line); }
body:not(.is-admin) .admin-only { display: none; }

.account { position: relative; }
.account-btn {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 14px;
  min-height: 40px;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.menu {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  min-width: 220px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 6px;
  display: grid;
}
.menu-email { margin: 6px 10px 8px; color: var(--muted); font-size: .85rem; overflow-wrap: anywhere; }
.menu button { text-align: left; background: none; border: 0; color: var(--ink); padding: 10px; border-radius: 6px; }
.menu button:hover { background: var(--paper); }
.menu .danger, .danger { color: var(--accent); }

.view { max-width: 980px; margin: 0 auto; padding: 24px 16px 64px; }

.books { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.book {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  display: grid;
  gap: 6px;
}
.book h3 { font-size: 1.15rem; }
.book .meta { color: var(--muted); font-size: .9rem; margin: 0; }
.badge {
  display: inline-block;
  font-size: .75rem;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  justify-self: start;
}
.badge.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.badge.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 40%, transparent); }
.badge.off { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.empty { color: var(--muted); padding: 24px; border: 1px dashed var(--line); border-radius: 12px; text-align: center; }

.invite {
  display: grid;
  grid-template-columns: 1fr 1.4fr auto;
  gap: 12px;
  align-items: end;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
}
.result {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 12px;
  display: grid;
  gap: 8px;
}
.result p { margin: 0; }
.copyrow { display: flex; gap: 8px; }
.copyrow input { font-size: .85rem; }
.copy { white-space: nowrap; border: 1px solid var(--line); background: var(--paper); color: var(--ink); border-radius: 8px; padding: 0 14px; min-height: 44px; }
#mail-off { margin-bottom: 12px; }

.user-list { display: grid; gap: 10px; margin-top: 8px; }
.user {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 16px;
  align-items: center;
}
.user .who { display: grid; gap: 2px; min-width: 0; }
.user .name { font-weight: 600; }
.user .email, .user .meta { color: var(--muted); font-size: .9rem; overflow-wrap: anywhere; }
.user .badges { display: flex; gap: 6px; flex-wrap: wrap; }
.user .actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.user .actions button {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  border-radius: 8px;
  padding: 6px 12px;
  min-height: 38px;
  font-size: .9rem;
}
.user .actions button.danger { color: var(--accent); }
.user .linkrow { grid-column: 1 / -1; }

dialog {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  color: var(--ink);
  padding: 24px;
  width: min(440px, calc(100vw - 32px));
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(10, 9, 7, .45); }
.dialog-text { margin: 0; color: var(--muted); }
.dialog-fields { display: grid; gap: 12px; }
.dialog-fields:empty { display: none; }
.dialog-actions { display: flex; gap: 8px; justify-content: flex-end; }
dialog .primary.danger-btn { background: var(--accent); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  z-index: 50;
  max-width: calc(100vw - 32px);
}

@media (max-width: 640px) {
  .gate-card { padding: 24px 20px; }
  .top { gap: 8px; padding: 8px 12px; }
  .brand.small { font-size: 1.1rem; }
  .brand.small .mark { display: none; }
  .account-btn { max-width: 120px; padding: 6px 10px; }
  .invite { grid-template-columns: 1fr; }
  .user { grid-template-columns: 1fr; }
  .user .actions { justify-content: flex-start; }
}

a.book {
  color: inherit;
  text-decoration: none;
  grid-template-columns: 72px 1fr;
  align-items: start;
  gap: 14px;
  transition: border-color .15s, transform .15s;
}
a.book:hover { border-color: var(--muted); }
a.book:active { transform: scale(.99); }
.book .cover {
  width: 72px;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--paper);
}
.book-text { display: grid; gap: 6px; min-width: 0; }

.book-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.book-head h2 { margin: 0; }
.book-heading .meta { margin: 2px 0 0; color: var(--muted); font-size: .9rem; }
.back {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 14px;
  min-height: 40px;
  white-space: nowrap;
}
.book-tools { display: flex; gap: 12px; align-items: center; margin-bottom: 8px; flex-wrap: wrap; }
.book-tools input { flex: 1; min-width: 180px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; padding: 3px; background: var(--card); }
.seg button { border: 0; background: none; color: var(--muted); padding: 6px 16px; border-radius: 7px; min-height: 36px; }
.seg button[aria-selected="true"] { background: var(--ink); color: var(--paper); }

.letters {
  position: sticky;
  top: 60px;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  padding: 6px 0;
  background: var(--paper);
}
.letters a {
  min-width: 30px;
  min-height: 30px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--serif);
}
.letters a:hover { background: var(--card); }

.letter-group { margin-top: 14px; scroll-margin-top: 110px; }
.letter-group h3 {
  font-size: 1.1rem;
  color: var(--accent);
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
  margin-bottom: 2px;
}
.tune-row {
  display: grid;
  grid-template-columns: 1fr minmax(0, 220px) 92px;
  gap: 12px;
  align-items: baseline;
  padding: 10px 8px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
  color: inherit;
  text-decoration: none;
  border-radius: 6px;
}
.tune-row:hover { background: var(--card); }
.tr-title { font-family: var(--serif); font-size: 1.08rem; }
.tr-sub, .tr-composer { color: var(--muted); }
.tr-composer { font-size: .9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tr-label { font-size: .75rem; color: var(--warn); border: 1px solid color-mix(in srgb, var(--warn) 40%, transparent); border-radius: 999px; padding: 1px 7px; margin-left: 4px; vertical-align: 2px; }
.tr-page { color: var(--muted); font-size: .9rem; text-align: right; font-variant-numeric: tabular-nums; }

.page-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 14px; margin-top: 8px; }
.page-tile { display: grid; gap: 4px; color: inherit; text-decoration: none; }
.page-tile img { width: 100%; aspect-ratio: 3 / 4; object-fit: contain; background: #fff; border: 1px solid var(--line); border-radius: 4px; }
.pt-label { font-size: .85rem; color: var(--muted); text-align: center; }
.pt-tunes { font-size: .8rem; font-family: var(--serif); text-align: center; line-height: 1.25; }

body.viewing { overflow: hidden; }
.viewer {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: #fff;
  color: #1c1a17;
  user-select: none;
  -webkit-user-select: none;
}
.v-stage {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}
.v-content { min-height: 100%; display: flex; flex-direction: column; align-items: center; }
.v-tune { display: block; max-width: 100%; box-sizing: content-box; margin-top: calc(60px + env(safe-area-inset-top)); }
.v-btn svg { display: block; }
.v-pages { height: 100dvh; width: 100%; display: flex; justify-content: center; align-items: stretch; gap: 6px; padding: 4px; }
.v-pages img { height: calc(100dvh - 8px); max-width: 100%; object-fit: contain; min-width: 0; }
.v-pages.two img { max-width: calc(50% - 3px); }
.v-missing { margin: 40vh auto 0; color: #6b655c; }

.v-top, .v-bottom {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px calc(10px + env(safe-area-inset-right)) 8px calc(10px + env(safe-area-inset-left));
  background: rgba(28, 26, 23, .86);
  color: #f6f3ec;
  backdrop-filter: blur(8px);
  transition: transform .2s ease, opacity .2s ease;
}
.v-top { top: 0; padding-top: calc(8px + env(safe-area-inset-top)); }
.v-bottom { bottom: 0; justify-content: space-between; padding-bottom: calc(8px + env(safe-area-inset-bottom)); }
.viewer.bars-hidden .v-top { transform: translateY(-110%); opacity: 0; pointer-events: none; }
.viewer.bars-hidden .v-bottom { transform: translateY(110%); opacity: 0; pointer-events: none; }
.v-title { flex: 1; min-width: 0; display: grid; line-height: 1.25; }
.v-title strong { font-family: var(--serif); font-size: 1.1rem; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.v-title span { font-size: .82rem; opacity: .75; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.v-btn {
  border: 1px solid rgba(246, 243, 236, .25);
  background: transparent;
  color: inherit;
  border-radius: 8px;
  min-height: 40px;
  min-width: 40px;
  padding: 0 12px;
  font-size: .95rem;
}
.v-btn:disabled { opacity: .35; }
.v-bottom .v-btn { font-size: 1.5rem; line-height: 1; padding: 0 18px; }
.v-pos { font-size: .9rem; opacity: .85; font-variant-numeric: tabular-nums; text-align: center; }

.v-info {
  position: absolute;
  z-index: 3;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 100%);
  background: var(--card);
  color: var(--ink);
  border-left: 1px solid var(--line);
  padding: calc(20px + env(safe-area-inset-top)) 20px 20px;
  overflow-y: auto;
  box-shadow: -8px 0 24px rgba(0, 0, 0, .15);
}
.v-info-close { position: absolute; top: calc(10px + env(safe-area-inset-top)); right: 10px; color: var(--ink); border-color: var(--line); }
.v-info h3 { padding-right: 48px; }
.v-info h4 { font-family: var(--serif); margin: 18px 0 6px; font-size: 1.05rem; }
.v-sub { margin: 2px 0 0; color: var(--muted); }
.v-info dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 14px 0 0; font-size: .92rem; }
.v-info dt { color: var(--muted); }
.v-info dd { margin: 0; }
.v-also ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.v-also li { display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: baseline; font-size: .95rem; }
.v-also a { color: var(--accent); }
.v-also .meta { color: var(--muted); font-size: .85rem; margin: 0; }

.viewer.night { background: #111; }
.viewer.night .v-tune, .viewer.night .v-pages img { filter: invert(1) hue-rotate(180deg) brightness(.92); }

@media (max-width: 640px) {
  .tune-row { grid-template-columns: 1fr auto; }
  .tr-composer { grid-column: 1; grid-row: 2; }
  .tr-page { grid-row: 1 / span 2; grid-column: 2; align-self: center; }
  .v-btn { padding: 0 9px; }
  .v-top .v-btn[data-v="fit"] { display: none; }
  .letters { top: 56px; }
}

.v-spacer { flex: none; width: 100%; height: 100dvh; }

.tabs { flex: 0 0 auto; }
.search { flex: 1; display: flex; justify-content: flex-end; min-width: 0; }
.search input { max-width: 380px; min-height: 40px; padding: 8px 12px; border-radius: 999px; background: var(--card); }

.dropzone {
  border: 2px dashed var(--line);
  border-radius: 14px;
  padding: 22px 16px;
  text-align: center;
  background: var(--card);
  margin-bottom: 12px;
  transition: border-color .15s, background .15s;
}
.dropzone p { margin: 0; }
.dropzone .meta { color: var(--muted); font-size: .9rem; margin-top: 4px; }
.dropzone.over { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 7%, var(--card)); }
.inline-link { background: none; border: 0; padding: 0; color: var(--accent); text-decoration: underline; font: inherit; }

.upload-list { display: grid; gap: 8px; margin-bottom: 16px; }
.upload-list:empty { display: none; }
.upload {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 12px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
}
.up-text { display: grid; min-width: 0; }
.up-text strong { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.up-text span { color: var(--muted); font-size: .88rem; }
.upload.ok .up-text span { color: var(--ok); }
.upload.bad .up-text span { color: var(--accent); }
.up-open { color: var(--accent); font-weight: 600; text-decoration: none; padding: 6px 10px; }
.up-actions { display: flex; align-items: center; gap: 2px; }
.up-close { border: 0; background: none; color: var(--muted); font: inherit; font-size: 1.35rem; line-height: 1; padding: 4px 9px 6px; border-radius: 8px; cursor: pointer; }
.up-close:hover, .up-close:focus-visible { background: var(--line); color: var(--ink); }
.bar { grid-column: 1 / -1; height: 6px; border-radius: 999px; background: var(--line); overflow: hidden; }
.bar span { display: block; height: 100%; width: 0; background: var(--accent); transition: width .4s ease; }

.book-head .remove-book {
  margin-left: auto;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--accent);
  border-radius: 8px;
  padding: 6px 12px;
  min-height: 38px;
}

.search-for { color: var(--muted); margin: -8px 0 12px; }
.tr-snippet { display: block; color: var(--muted); font-size: .85rem; font-style: italic; margin-top: 2px; }
.catalog-head { margin-top: 28px; font-size: 1.15rem; }
.catalog-list { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 0; }
.catalog-list li { display: grid; gap: 2px; padding: 10px 8px; border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent); }
.catalog-list .meta { color: var(--muted); font-size: .88rem; }

@media (max-width: 640px) {
  .top { flex-wrap: wrap; }
  .search { order: 5; flex-basis: 100%; }
  .search input { max-width: none; }
  .book-head { flex-wrap: wrap; }
}

@media (max-width: 640px) {
  .letters { top: 104px; }
  .letter-group { scroll-margin-top: 160px; }
}

.newver {
  position: fixed;
  left: 50%;
  bottom: calc(18px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 10px 10px 16px;
  background: var(--ink);
  color: var(--paper);
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
  font-size: .92rem;
  max-width: calc(100vw - 16px);
}
.newver button {
  border: 0;
  border-radius: 8px;
  padding: 8px 14px;
  min-height: 36px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}
.newver button.x { background: transparent; color: var(--paper); font-size: 1.2rem; padding: 0 8px; }

@media (max-width: 640px) {
  .newver { left: 8px; right: 8px; transform: none; justify-content: space-between; }
}