:root {
  --ink: #16233b;
  --ink-soft: #3b4a63;
  --paper: #f6f4ef;
  --paper-raised: #ffffff;
  --line: #ddd7c9;
  --accent: #c17a2e;
  --accent-soft: #f0dcc0;
  --good: #3f7a5c;
  --good-soft: #dfeee4;
  --bad: #a3432f;
  --bad-soft: #f3ded8;
  --radius: 6px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
}

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 16px; }

/* iOS Safari auto-zooms the page when a focused form field is under 16px —
   the rule above is the fix. Belt-and-braces: never allow the page itself
   to grow wider than the viewport, so a stray wide element scrolls inside
   itself instead of pushing the whole layout sideways. */
/* overflow-x set on html only (not body too) — setting it on both makes each
   axis's paired overflow computed value "auto" per spec, turning body into
   its own scroll container and breaking position:sticky (e.g. the topbar),
   which then anchors to body instead of the real viewport scroller. */
html { overflow-x: hidden; }
body { max-width: 100vw; }

.screen { min-height: 100vh; }

/* App shell: header fixed to top, footer pinned to the bottom of the
   viewport on short pages and pushed down normally on long ones. */
#app-screen { display: flex; flex-direction: column; min-height: 100vh; }
.view-root { flex: 1 0 auto; width: 100%; }

/* Login */
#login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
}

/* The [hidden] attribute is how app.js toggles screens, but an ID selector
   like #login-screen above beats the browser's default [hidden] rule on
   specificity, so without this override both screens render stacked. */
#login-screen[hidden],
#app-screen[hidden] {
  display: none;
}

.login-card {
  background: var(--paper-raised);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 100%;
  max-width: 340px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}

.login-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .04em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 11px;
}
.login-mark .tld { color: var(--accent); }
.login-mark-icon { width: 32px; height: 32px; border-radius: 8px; flex: none; }

.login-sub {
  color: var(--ink-soft);
  margin: 4px 0 24px;
  font-size: 13px;
}

.login-card form label {
  display: block;
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-bottom: 14px;
}

.login-card form input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}
.login-card form input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.login-card form button[type="submit"] {
  width: 100%;
  padding: 10px;
  margin-top: 6px;
  border: none;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  letter-spacing: .01em;
}
.login-card form button[type="submit"]:hover { background: var(--ink-soft); }

.login-forgot-link {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 16px;
  font-size: 12.5px;
  color: var(--ink-soft);
  text-decoration: underline;
}
.login-forgot-link:hover { color: var(--accent); }

.form-error {
  color: var(--bad);
  font-size: 13px;
  margin-top: 12px;
}

/* App shell */
:root { --topbar-h: 56px; }
.topbar {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 24px;
  height: var(--topbar-h);
  background: var(--ink);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  flex: none;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: .035em;
  text-transform: uppercase;
  white-space: nowrap;
  background: none;
  border: none;
  color: #fff;
  padding: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand .tld { color: var(--accent); }
.brand-mark { width: 22px; height: 22px; border-radius: 5px; }

.app-footer {
  flex: none;
  text-align: center;
  padding: 24px 24px 18px;
  border-top: 1px solid var(--line);
  margin-top: 32px;
}
.app-footer-brand {
  color: var(--ink-soft);
  font-size: 11.5px;
  letter-spacing: .035em;
  text-transform: uppercase;
  font-family: var(--font-display);
}
.app-footer-brand span { color: var(--accent); }
.app-footer-brand #app-version { color: var(--ink-soft); font-family: var(--font-body); margin-left: 4px; }
.app-footer-by { margin-top: 6px; font-size: 12px; color: var(--ink-soft); }
.app-footer-by a { color: var(--ink-soft); text-decoration: underline; }
.app-footer-by a:hover { color: var(--accent); }

.tabs { display: flex; gap: 4px; flex: 1; }

.tab {
  background: none;
  border: none;
  color: #c7cedb;
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 13.5px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}
.tab svg { width: 17px; height: 17px; flex: none; }
.tab:hover { color: #fff; background: rgba(255,255,255,.06); }
.tab.active { color: #fff; background: rgba(255,255,255,.12); }

.who { display: flex; align-items: center; gap: 12px; font-size: 13px; color: #c7cedb; white-space: nowrap; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  padding: 8px;
  margin-left: auto;
  border-radius: var(--radius);
}
.menu-toggle svg { width: 22px; height: 22px; display: block; }
.menu-toggle:hover { background: rgba(255,255,255,.08); }

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(22,35,59,.4);
  z-index: 90;
}
.nav-backdrop.open { display: block; }

.link-btn {
  background: none;
  border: none;
  color: #c7cedb;
  text-decoration: underline;
  padding: 0;
  font-size: 13px;
}
.link-btn:hover { color: #fff; }

.view-root { padding: 24px; max-width: 1180px; margin: 0 auto; }

/* Shared view bits */
.view-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 12px;
  flex-wrap: wrap;
}

.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; align-items: start; }
.cards-span-all { grid-column: 1 / -1; }

.view-header h1 {
  font-family: var(--font-display);
  font-size: 20px;
  margin: 0;
}

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.btn {
  border: 1px solid var(--line);
  background: var(--paper-raised);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
}
.btn:hover { border-color: var(--ink-soft); }
.btn-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-primary:hover { background: var(--ink-soft); }
.btn-danger { color: var(--bad); border-color: var(--bad-soft); }
.btn-danger:hover { background: var(--bad-soft); }

input.search, select.filter {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-raised);
}

.card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
table.data th, table.data td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}
table.data th {
  font-weight: 600;
  color: var(--ink-soft);
  background: #fbfaf6;
  cursor: pointer;
  user-select: none;
}
table.data tbody tr:hover { background: #fbfaf6; cursor: pointer; }
table.data tbody tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.badge-status-novy { background: var(--accent-soft); color: var(--accent); }
.badge-status-probiha { background: #dde6f3; color: #2a4d7a; }
.badge-status-ceka_na_klienta { background: #f1e7c9; color: #8a6a1f; }
.badge-status-hotovo { background: var(--good-soft); color: var(--good); }
.badge-status-zruseno { background: var(--bad-soft); color: var(--bad); }

.badge-paid-nezaplaceno { background: var(--bad-soft); color: var(--bad); }
.badge-paid-zaplaceno_castecne { background: #f1e7c9; color: #8a6a1f; }
.badge-paid-zaplaceno { background: var(--good-soft); color: var(--good); }

.overdue { color: var(--bad); font-weight: 600; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 14px; margin-bottom: 24px; }
.stat-box { background: var(--paper-raised); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.stat-box .num { font-family: var(--font-display); font-size: 26px; font-weight: 700; }
.stat-box .label { color: var(--ink-soft); font-size: 12.5px; margin-top: 2px; }
.stat-box-danger { border-color: var(--bad-soft); }
.stat-box-danger .num { color: var(--bad); }

.status-card { margin-bottom: 24px; }
.status-breakdown { display: flex; flex-direction: column; gap: 13px; }
.status-row { display: flex; align-items: center; gap: 12px; }
.status-row-label { flex: 0 0 130px; text-align: center; }
.status-row-bar { flex: 1; height: 10px; background: #efebe0; border-radius: 6px; overflow: hidden; }
.status-row-fill { height: 100%; border-radius: 6px; transition: width .3s ease; }
.status-fill-novy { background: var(--accent); }
.status-fill-probiha { background: #2a4d7a; }
.status-fill-ceka_na_klienta { background: #8a6a1f; }
.status-fill-hotovo { background: var(--good); }
.status-fill-zruseno { background: var(--bad); }
.status-row-count { flex: 0 0 24px; text-align: right; font-weight: 600; font-size: 13px; color: var(--ink-soft); }

.cat-label { flex: 0 0 150px; text-align: left; text-transform: none; letter-spacing: normal; font-size: 13.5px; color: var(--ink); font-weight: 600; }
.cat-total { flex: 0 0 90px; text-align: right; font-size: 13px; color: var(--ink-soft); }

/* Statistiky: donut charts */
.charts-row { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; }
.donut-card { flex: 1 1 320px; background: var(--paper-raised); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.donut-row { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.donut-wrap { position: relative; flex: none; }
.donut-wrap svg { display: block; width: 100%; height: 100%; }
.donut-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; pointer-events: none; }
.donut-center-num { font-family: var(--font-display); font-size: 24px; font-weight: 700; color: var(--ink); line-height: 1; }
.donut-center-sub { font-size: 11px; color: var(--ink-soft); margin-top: 2px; text-transform: uppercase; letter-spacing: .03em; }
.donut-legend { flex: 1 1 140px; display: flex; flex-direction: column; gap: 9px; min-width: 140px; }
.legend-row { display: flex; align-items: center; gap: 9px; font-size: 13px; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.legend-label { flex: 1; color: var(--ink); }
.legend-value { color: var(--ink-soft); font-size: 12.5px; white-space: nowrap; }

.empty-state { padding: 40px 20px; text-align: center; color: var(--ink-soft); }

/* Kanban */
.kanban { display: grid; grid-auto-flow: column; grid-auto-columns: 260px; gap: 14px; overflow-x: auto; padding-bottom: 10px; }
.kanban-col { background: #efebe0; border-radius: var(--radius); padding: 10px; min-height: 120px; }
.kanban-col h3 { font-size: 13px; margin: 2px 6px 10px; color: var(--ink-soft); }
.kanban-card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
  margin-bottom: 8px;
  cursor: grab;
  font-size: 13px;
}
.kanban-card .title { font-weight: 600; margin-bottom: 4px; }
.kanban-card .meta { color: var(--ink-soft); font-size: 12px; }
.kanban-col.drag-over { background: #e4decb; }

/* Modal */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(22,35,59,.45);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  z-index: 100;
}
.modal {
  background: var(--paper-raised);
  border-radius: var(--radius);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 24px;
}
.modal h2 { font-family: var(--font-display); font-size: 18px; margin: 0 0 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.form-row.full { grid-template-columns: 1fr; }
.form-row label { font-size: 12.5px; color: var(--ink-soft); display: block; }
.form-row input, .form-row select, .form-row textarea {
  display: block; width: 100%; margin-top: 5px;
  padding: 8px 10px; border: 1px solid var(--line); border-radius: var(--radius);
}
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }

.history-list { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 14px; }
.history-item { font-size: 12.5px; color: var(--ink-soft); margin-bottom: 10px; white-space: pre-line; }
.history-item .meta { font-weight: 600; color: var(--ink); }

.attachment-list { display: flex; flex-direction: column; gap: 6px; }
.attachment-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.attachment-name { flex: 1; font-size: 13px; color: var(--ink); text-decoration: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attachment-name:hover { text-decoration: underline; color: var(--accent); }
.attachment-size { font-size: 12px; color: var(--ink-soft); flex: none; }
.attachment-row .btn { padding: 4px 10px; font-size: 12px; min-height: 0; flex: none; }

/* ---------- Responsive / mobile ---------- */

@media (max-width: 880px) {
  :root { --topbar-h: 60px; }

  .topbar { padding: 0 10px 0 16px; gap: 8px; }

  .brand { font-size: 16px; gap: 9px; }
  .brand-mark { width: 26px; height: 26px; }

  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin-left: 2px;
    flex: none;
  }
  .menu-toggle svg { width: 24px; height: 24px; }

  .tabs {
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 2px;
    background: var(--ink);
    padding: 10px;
    max-height: calc(100vh - var(--topbar-h));
    overflow-y: auto;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .15s ease, transform .15s ease;
    z-index: 95;
    box-shadow: 0 16px 30px rgba(0,0,0,.25);
  }
  .tabs.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .tab {
    width: 100%;
    padding: 13px 14px;
    font-size: 16px;
    min-height: 48px;
  }
  .tab svg { width: 19px; height: 19px; }

  .who { flex: none; gap: 0; }
  .who span#who-name { display: none; }
  .link-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
    padding: 0 10px;
    font-size: 14px;
    text-decoration: none;
    border-radius: var(--radius);
  }
  .link-btn:active { background: rgba(255,255,255,.1); }
}

@media (max-width: 400px) {
  .brand .tld { display: none; }
}

@media (max-width: 720px) {
  .view-root { padding: 16px; }

  .login-card { padding: 32px 24px; }
  .login-mark { font-size: 20px; }
  .login-sub { font-size: 14px; }
  .login-card form label { font-size: 13.5px; }
  .login-card form input { padding: 12px 13px; }
  .login-card form button[type="submit"] { padding: 13px; font-size: 15px; }

  .form-row { grid-template-columns: 1fr; }
  .form-row label { font-size: 13.5px; }

  .view-header { flex-direction: column; align-items: stretch; margin-bottom: 16px; }
  .view-header h1 { font-size: 23px; }
  .toolbar { width: 100%; }
  .toolbar input.search { flex: 1 1 100%; }
  .toolbar > .toolbar { width: 100%; }

  input.search, select.filter { font-size: 16px; padding: 10px 12px; }

  .btn, .link-btn { min-height: 44px; }
  .btn { padding: 10px 16px; font-size: 14.5px; }

  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-box { padding: 18px 16px; }
  .stat-box .num { font-size: 29px; }
  .stat-box .label { font-size: 13px; }

  .status-row { gap: 8px; }
  .status-row-label { flex-basis: 96px; font-size: 11.5px; padding: 3px 7px; }
  .status-row-count { flex-basis: 20px; }
  .cat-label { flex-basis: 96px; font-size: 12px; }
  .cat-total { flex-basis: 70px; font-size: 12px; }

  .charts-row { flex-direction: column; }
  .donut-card { flex-basis: auto; padding: 16px; }
  .donut-row { justify-content: center; gap: 18px; }
  .donut-legend { flex: 1 1 100%; }

  /* Card-style tables: header row hidden, each cell becomes a labeled row */
  table.data thead { display: none; }
  table.data, table.data tbody, table.data tr, table.data td { display: block; width: 100%; }
  table.data {
    border: none;
    background: none;
  }
  table.data tbody tr {
    background: var(--paper-raised);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    margin-bottom: 10px;
    padding: 4px 14px;
  }
  table.data tbody tr:hover { background: var(--paper-raised); }
  table.data td {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 11px 0;
    border-bottom: 1px solid var(--line);
    font-size: 14.5px;
    text-align: right;
  }
  table.data td:last-child { border-bottom: none; }
  table.data td[data-label]::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--ink-soft);
    text-align: left;
    margin-right: auto;
    font-size: 13px;
  }
  table.data td:not([data-label]) { justify-content: flex-start; }
  table.data td.toolbar { justify-content: flex-start; flex-wrap: wrap; padding: 10px 0; }
  table.data td.toolbar .btn { font-size: 13.5px; padding: 8px 12px; min-height: 38px; }

  .badge { font-size: 12.5px; padding: 4px 10px; }

  .kanban { grid-auto-columns: 80vw; scroll-snap-type: x mandatory; gap: 10px; }
  .kanban-col { scroll-snap-align: start; padding: 12px; }
  .kanban-card { padding: 12px 14px; font-size: 14px; }

  .modal-overlay { padding: 0; align-items: flex-end; }
  .modal {
    max-width: 100%;
    width: 100%;
    max-height: 92vh;
    border-radius: 14px 14px 0 0;
    padding: 20px 16px 24px;
  }
  .modal h2 { font-size: 19px; }
  .modal-actions { flex-wrap: wrap; }
  .modal-actions .btn { flex: 1 1 auto; min-height: 46px; }

  .card { padding: 16px; }

  .history-item { font-size: 13px; }
}

@media (max-width: 400px) {
  .view-header h1 { font-size: 21px; }
  .stat-box .num { font-size: 25px; }
}