:root {
  --paper: #F7F8FA;
  --paper-deep: #EEF1F5;
  --ink: #16213F;
  --ink-soft: #6B7280;
  --teal: #1E3A5F;
  --teal-dark: #101F35;
  --brick: #DC2626;
  --brick-dark: #B91C1C;
  --border: #E2E5EA;
  --card-bg: #FFFFFF;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: var(--sans); /* CRM использует sans-serif везде, без засечек */
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  min-height: 100vh;
}

/* ---------------------------------------------------------------- topbar */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 3px solid var(--teal);
}

.brand { display: flex; align-items: center; gap: 10px; font-family: var(--sans); font-size: 19px; font-weight: 600; }
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--teal); color: white;
  font-family: var(--sans); font-weight: 700; font-size: 13px;
}

.report-switch { display: flex; align-items: center; gap: 10px; }
.report-switch select {
  background: var(--paper); color: var(--ink); border: none; border-radius: 4px;
  padding: 7px 10px; font-family: var(--sans); min-width: 220px;
}
.topbar .btn-ghost { background: transparent; color: var(--paper); border-color: rgba(247,248,250,0.35); }
.current-user-label { color: var(--paper); font-size: 13px; opacity: 0.85; margin-right: 4px; }

.login-screen {
  min-height: calc(100vh - 60px); display: flex; align-items: center; justify-content: center;
}
.login-screen[hidden] { display: none; }
.login-form {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 32px 36px; width: 320px; display: flex; flex-direction: column; gap: 14px;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.login-form h2 { margin: 0 0 6px; font-family: var(--serif); font-size: 20px; text-align: center; }
.login-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--ink-soft); }
.login-form input {
  padding: 9px 10px; border: 1px solid var(--border); border-radius: 4px; font-family: var(--sans); font-size: 14px;
}
.login-form .btn { margin-top: 4px; }
.topbar .btn-ghost:hover { background: rgba(244,240,228,0.12); }

/* -------------------------------------------------------------- buttons */

.btn {
  font-family: var(--sans);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, transform .05s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--teal); color: white; }
.btn-primary:hover { background: var(--teal-dark); }
.btn-ghost { background: var(--card-bg); border-color: var(--border); color: var(--ink); border-radius: 999px; }
.btn-ghost:hover { background: var(--paper-deep); border-color: var(--teal); }
.btn-danger { background: transparent; border-color: var(--brick); color: var(--brick); border-radius: 999px; }
.btn-danger:hover { background: var(--brick); color: white; }
.btn-build {
  background: var(--teal); color: white; font-size: 15px; padding: 12px 24px;
  border-radius: 8px; font-family: var(--sans); font-weight: 600; letter-spacing: .2px;
}
.btn-build:hover { background: var(--teal-dark); }

/* ------------------------------------------------------------------ app */

.app { max-width: 1040px; margin: 0 auto; padding: 24px 24px 110px; }

.tabs { display: flex; gap: 8px; border-bottom: none; margin-bottom: 24px; flex-wrap: wrap; }
.tab {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 999px; padding: 9px 18px;
  font-family: var(--sans); font-size: 14px; font-weight: 500; color: var(--ink-soft); cursor: pointer;
}
.tab:hover { border-color: var(--teal); }
.tab.active { color: var(--teal); border-color: var(--teal); font-weight: 600; background: var(--paper-deep); }

.panel { display: none; }
.panel.active { display: block; animation: fadein .15s ease; }
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

.section-title { font-family: var(--serif); font-size: 18px; margin: 8px 0 12px; }
.hint { color: var(--ink-soft); font-size: 13px; margin: 0 0 12px; max-width: 640px; }
.muted { color: var(--ink-soft); font-weight: normal; font-size: 14px; }

/* ------------------------------------------------------------ add-cards */

.add-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 28px; }
.add-card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px; box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.add-card h3 { margin: 0 0 6px; font-family: var(--serif); font-size: 16px; }
.inline-form { display: flex; gap: 8px; }
.inline-form input[type=text], .inline-form input[type=file] {
  flex: 1; padding: 8px 10px; border: 1px solid var(--border); border-radius: 4px; font-family: var(--sans);
}

.dropzone {
  border: 2px dashed var(--border); border-radius: 10px; padding: 18px; text-align: center;
  color: var(--ink-soft); font-size: 13px; display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.dropzone.drag-over { border-color: var(--teal); background: var(--paper-deep); color: var(--teal-dark); }

.kaiten-file-list { margin-top: 12px; border-top: 1px solid var(--border); padding-top: 10px; }
.kaiten-bulk-row { display: flex; gap: 8px; padding-bottom: 8px; margin-bottom: 6px; border-bottom: 1px solid var(--border); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.kaiten-file-row { display: flex; align-items: center; gap: 10px; padding: 6px 0; font-size: 13px; }
.kaiten-file-row label { flex: 1; display: flex; flex-direction: column; cursor: pointer; }
.kaiten-file-row .fname { color: var(--ink); }
.kaiten-file-row .fmeta { color: var(--ink-soft); font-family: var(--mono); font-size: 11px; }
.kaiten-file-actions { display: flex; gap: 8px; margin-top: 10px; align-items: center; }

/* --------------------------------------------------------------- items */

.items-list { list-style: none; margin: 0; padding: 0; }
.empty-msg { color: var(--ink-soft); font-style: italic; }

.item-select-checkbox { width: 16px; height: 16px; flex-shrink: 0; }
.item-card {
  display: flex; align-items: center; gap: 12px;
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 12px; margin-bottom: 8px; box-shadow: 0 1px 2px rgba(0,0,0,.03);
}
.item-card.sortable-ghost { opacity: .4; }
.drag-handle { cursor: grab; color: var(--ink-soft); font-size: 18px; padding: 0 4px; user-select: none; }

.item-thumb {
  width: 46px; height: 60px; border: 1px solid var(--border); border-radius: 2px;
  object-fit: cover; background: var(--paper-deep); cursor: pointer; flex-shrink: 0;
}

.item-seal {
  width: 26px; height: 26px; border-radius: 8px; background: var(--paper-deep); color: var(--brick);
  display: flex; align-items: center; justify-content: center; font-size: 11px; font-family: var(--sans);
  font-weight: 700; flex-shrink: 0;
}
.item-seal.source-kaiten { background: #EFF6FF; color: var(--teal); }

.item-info { flex: 1; min-width: 0; }
.item-title {
  border: none; background: transparent; font-family: var(--sans); font-size: 14px; width: 100%;
  padding: 2px 0; color: var(--ink);
}
.item-title:focus { outline: none; border-bottom: 1px solid var(--teal); }
.item-meta { font-size: 12px; color: var(--ink-soft); font-family: var(--mono); }

.item-remove { color: var(--brick); background: none; border: none; cursor: pointer; font-size: 16px; padding: 4px 8px; }
.item-remove:hover { color: var(--brick-dark); }

.item-break-btn {
  background: none; border: 1px solid var(--border); border-radius: 4px; color: var(--ink-soft);
  cursor: pointer; font-size: 12px; padding: 5px 8px; white-space: nowrap; flex-shrink: 0;
}
.item-break-btn:hover { border-color: var(--teal); color: var(--teal-dark); }
.item-break-btn.active { background: var(--teal); border-color: var(--teal); color: white; }

.volume-break-divider {
  list-style: none; text-align: center; font-size: 12px; color: var(--teal-dark);
  font-family: var(--mono); padding: 6px 0; margin: 4px 0; border-top: 2px dashed var(--teal);
  border-bottom: 2px dashed var(--teal); background: rgba(15, 107, 102, 0.06);
}

/* --------------------------------------------------------------- tables */

.title-input {
  width: 100%; font-family: var(--serif); font-size: 16px; padding: 8px 10px;
  border: 1px solid var(--border); border-radius: 4px; margin-bottom: 14px;
}
.table-toolbar { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.field-msg { font-size: 13px; color: var(--teal-dark); }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 10px; background: var(--card-bg); }
table.editable-table { border-collapse: collapse; width: 100%; }
table.editable-table th, table.editable-table td {
  border: 1px solid var(--border); padding: 8px 10px; font-size: 13px; text-align: left;
}
table.editable-table th { background: var(--paper-deep); font-family: var(--serif); }
table.editable-table td[contenteditable="true"] { cursor: text; }
table.editable-table td[contenteditable="true"]:focus { outline: 2px solid var(--teal); outline-offset: -2px; }
.row-remove-cell { text-align: center; }
.row-remove-cell button { background: none; border: none; color: var(--brick); cursor: pointer; }

/* ------------------------------------------------------------- settings */

.settings-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 16px; }
.settings-grid label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--ink-soft); }
.settings-grid input {
  padding: 8px 10px; border: 1px solid var(--border); border-radius: 4px; font-family: var(--sans); font-size: 14px; color: var(--ink);
}
.expl-current { margin-bottom: 10px; font-family: var(--mono); font-size: 13px; color: var(--ink-soft); }
.toggle-row { display: flex; align-items: center; gap: 8px; font-size: 14px; margin-bottom: 10px; cursor: pointer; }
.toggle-row input { width: 16px; height: 16px; }

.status-badge { padding: 8px 14px; border-radius: 8px; font-size: 13px; border: 1px solid; font-weight: 500; }
.status-ok { background: #ECFDF5; border-color: #A7F3D0; color: #047857; }
.status-off { background: #FEF2F2; border-color: #FCA5A5; color: #B91C1C; }

.volume-plan-box { margin-bottom: 18px; border: 1px solid var(--border); border-radius: 10px; background: var(--card-bg); padding: 14px; }
.volume-plan-box h4 { margin: 0 0 8px; font-family: var(--serif); font-size: 15px; }
.volume-plan-box .vp-volume { margin-bottom: 12px; }
.volume-plan-box .vp-volume-title { font-weight: bold; color: var(--teal-dark); margin-bottom: 4px; }
.volume-plan-box .vp-item { font-size: 13px; font-family: var(--mono); color: var(--ink-soft); padding: 2px 0 2px 12px; }

.size-label { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-soft); }
.size-label input { padding: 6px 8px; border: 1px solid var(--border); border-radius: 4px; }

.row-insert-cell, .col-insert-cell { text-align: center; padding: 0 !important; }
.row-insert-btn {
  background: none; border: none; color: var(--teal); cursor: pointer; font-size: 14px;
  width: 100%; padding: 2px 0; opacity: 0.4; transition: opacity .15s;
}
.row-insert-btn:hover { opacity: 1; background: var(--paper-deep); }
.insert-row-divider { height: 6px; position: relative; }
.insert-row-divider button {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  background: var(--card-bg); border: 1px solid var(--teal); color: var(--teal);
  border-radius: 50%; width: 18px; height: 18px; font-size: 12px; line-height: 1; cursor: pointer;
  opacity: 0; transition: opacity .15s;
}
.editable-table tr:hover + .insert-row-divider button,
.insert-row-divider:hover button { opacity: 1; }

.col-header-cell { position: relative; }
.col-header-actions { display: flex; align-items: center; justify-content: center; gap: 4px; }
.col-insert-btn, .col-remove-btn {
  background: none; border: none; color: var(--teal-dark); cursor: pointer; font-size: 11px; padding: 0 2px;
}
.col-remove-btn { color: var(--brick); }

.preview-slider { width: 100%; margin: 10px 0 4px; accent-color: var(--teal); }
.modal-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.goto-page { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.goto-page input { padding: 5px 6px; border: 1px solid var(--border); border-radius: 4px; }

/* --------------------------------------------------------------- footer */

.build-bar {
  position: fixed; left: 0; right: 0; bottom: 0;
  background: var(--card-bg); border-top: 2px solid var(--border);
  padding: 14px 24px; display: flex; align-items: center; gap: 20px;
}
.build-results { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; font-size: 13px; }
.build-results a {
  color: var(--teal-dark); text-decoration: none; border: 1px solid var(--teal); border-radius: 4px;
  padding: 6px 10px; font-family: var(--mono);
}
.build-results a:hover { background: var(--teal); color: white; }

/* --------------------------------------------------------- empty state */

.empty-state { max-width: 600px; margin: 120px auto; text-align: center; color: var(--ink-soft); font-family: var(--serif); font-size: 18px; }

/* --------------------------------------------------------------- modal */

.modal {
  position: fixed; inset: 0; background: rgba(30,42,56,.75);
  display: flex; align-items: center; justify-content: center; z-index: 50;
}
.modal[hidden] { display: none; }
.modal-content {
  background: var(--card-bg); border-radius: 8px; padding: 16px; max-width: 90vw; max-height: 90vh;
  display: flex; flex-direction: column; gap: 10px;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; font-family: var(--serif); }
.modal-body { display: flex; align-items: center; gap: 12px; overflow: auto; }
.modal-body img { max-height: 70vh; max-width: 70vw; border: 1px solid var(--border); }
.nav-btn { font-size: 20px; padding: 6px 12px; }
.modal-footer { text-align: center; font-family: var(--mono); color: var(--ink-soft); font-size: 13px; }

@media (max-width: 720px) {
  .add-row, .settings-grid { grid-template-columns: 1fr; }
}