:root {
  --blue: #3b5bdb;
  --blue-dark: #2f4ec7;
  --accent-soft: #eaeffd;
  --dark: #1a2030;
  --nav-1: #171d2e;
  --nav-2: #232c47;
  --border: #e3e7ee;
  --bg: #eef1f6;
  --surface: #ffffff;
  --text: #1b2233;
  --muted-c: #7a8194;
  --danger: #d64545;
  --success: #1e9e5a;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(20,25,40,.05), 0 4px 14px rgba(20,25,40,.06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* Navbar */
.topbar {
  background: linear-gradient(180deg, var(--nav-2) 0%, var(--nav-1) 100%);
  box-shadow: 0 1px 0 rgba(255,255,255,.04), 0 2px 12px rgba(10,14,25,.25);
  position: sticky; top: 0; z-index: 100;
}
.topbar-inner {
  max-width: 1180px; margin: 0 auto;
  display: flex; align-items: center; gap: 20px; padding: 11px 22px;
}
.brand {
  color: #fff; font-weight: 700; text-decoration: none; font-size: 1.05rem;
  display: flex; align-items: center; gap: 9px; flex-shrink: 0;
}
.brand svg { flex-shrink: 0; }
.topbar nav { display: flex; gap: 3px; flex: 1; flex-wrap: wrap; align-items: center; }
.topbar nav a {
  color: #aeb6cc; text-decoration: none; font-size: .89rem;
  padding: .4rem .7rem; border-radius: 7px; transition: background .15s, color .15s;
  white-space: nowrap;
}
.topbar nav a:hover { color: #fff; background: rgba(255,255,255,.08); }
.topbar nav a.active { color: #fff; background: rgba(59,91,219,.32); box-shadow: inset 0 0 0 1px rgba(120,150,255,.3); }
.nav-sep { width: 1px; height: 20px; background: rgba(255,255,255,.12); margin: 0 4px; }
.user-info { display: flex; gap: 10px; align-items: center; font-size: .85rem; flex-shrink: 0; }
.user-pill {
  background: rgba(59,91,219,.18); border: 1px solid rgba(120,150,255,.35);
  color: #c7d2f7; padding: .28rem .75rem; border-radius: 20px; font-size: .78rem;
  max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.user-info a.logout { color: #f0a5a5; text-decoration: none; font-size: .82rem; }
.user-info a.logout:hover { color: #ff8a8a; text-decoration: underline; }
.logout-form { display: inline; margin: 0; }
.logout-form button.logout {
  background: none; border: none; padding: 0; cursor: pointer;
  color: #f0a5a5; font-size: .82rem; font-family: inherit;
}
.logout-form button.logout:hover { color: #ff8a8a; text-decoration: underline; }

/* Kolabovatelná část navbaru + hamburger (mobil). Na desktopu je hamburger
   skrytý a nav-collapse se chová jako dosud (nav vlevo, user vpravo). */
.nav-collapse { display: flex; flex: 1; align-items: center; gap: 20px; min-width: 0; }
/* checkbox je vizuálně skrytý, ale zůstává fokusovatelný z klávesnice
   (Tab + mezerník otevře menu); label ho ovládá myší/dotykem */
.nav-toggle-cb {
  position: absolute; width: 1px; height: 1px; opacity: 0;
  pointer-events: none; margin: 0;
}
.nav-toggle { display: none; }

/* Vodorovně rolovatelný obal tabulek - na úzkém displeji lze tabulkou
   "swipovat" místo aby přetékala ze stránky. */
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Řádkový formulář (adresář) - na desktopu do řádku, na mobilu pod sebe. */
.stack-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.stack-form .sf-field { display: flex; flex-direction: column; }
.stack-form .sf-field label { margin-bottom: 4px; }

/* Layout */
.container { max-width: 1180px; margin: 26px auto; padding: 0 22px; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px 26px; margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.card-narrow { max-width: 420px; margin: 64px auto; }
h1 { font-size: 1.4rem; margin-top: 0; margin-bottom: 16px; letter-spacing: -.01em; }
h2 { font-size: 1.15rem; }

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); font-size: .9rem; }
th { color: var(--muted-c); font-weight: 600; background: #f7f9fc; font-size: .72rem; text-transform: uppercase; letter-spacing: .05em; }
tbody tr:last-child td { border-bottom: none; }
tr:hover td { background: #f6f8fe; }

/* Buttons */
a.btn, button.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  background: var(--blue); color: #fff; border: 1px solid transparent;
  padding: .55rem 1.15rem; border-radius: 8px; cursor: pointer; text-decoration: none;
  font-size: .9rem; font-weight: 600; line-height: 1.2;
  transition: background .15s, transform .05s, box-shadow .15s;
}
a.btn:hover, button.btn:hover { background: var(--blue-dark); }
a.btn:active, button.btn:active { transform: translateY(1px); }
button.btn:disabled { opacity: .5; cursor: not-allowed; }
a.btn.btn-primary, button.btn.btn-primary { background: var(--blue); }
a.btn.secondary, button.btn.secondary, a.btn.btn-secondary, button.btn.btn-secondary { background: #eef1f6; color: #3a4256; border-color: var(--border); }
a.btn.secondary:hover, button.btn.secondary:hover, a.btn.btn-secondary:hover, button.btn.btn-secondary:hover { background: #e2e7f0; }
a.btn.danger, button.btn.danger, a.btn.btn-danger, button.btn.btn-danger { background: var(--danger); color: #fff; }
a.btn.danger:hover, button.btn.danger:hover { background: #be3a3a; }
a.btn.btn-ghost, button.btn.btn-ghost { background: transparent; color: #4a5268; border-color: var(--border); }
a.btn.btn-ghost:hover, button.btn.btn-ghost:hover { background: #f2f4f8; color: var(--blue); border-color: #c6cede; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }

/* Inputs */
input[type=text], input[type=email], input[type=number], input[type=password],
input[type=date], textarea, select {
  width: 100%; padding: .55rem .7rem; border: 1px solid var(--border);
  border-radius: 8px; font-size: .92rem; margin-bottom: 14px;
  background: #fff; color: var(--text); outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(59,91,219,.14); }
label { font-weight: 600; font-size: .82rem; display: block; margin-bottom: 6px; color: #46506a; }

/* Flashes */
.flashes { margin-bottom: 16px; }
.flash { padding: .7rem 1rem; border-radius: 9px; margin-bottom: 8px; font-size: .88rem; border: 1px solid transparent; }
.flash-info { background: #e9f0ff; color: #23408f; border-color: #cddcff; }
.flash-success { background: #e6f7ee; color: #17794a; border-color: #bce8cf; }
.flash-error { background: #fdecec; color: #b23636; border-color: #f4c9c9; }

/* Badges */
.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: .74rem; font-weight: 600; }
.badge-on { background: #e6f7ee; color: var(--success); }
.badge-off { background: #eef0f4; color: #8a91a2; }

.perm-form label.inline { display: inline-flex; align-items: center; gap: 6px; font-weight: 400; margin-right: 14px; color: var(--text); }
.muted { color: var(--muted-c); font-size: .85rem; }
.center { text-align: center; }

.nav-badge {
  display: inline-block; background: var(--danger); color: white; border-radius: 10px;
  padding: 1px 7px; font-size: .7rem; font-weight: 700; margin-left: 5px; vertical-align: middle;
}

tr.unread td { font-weight: 700; }
tr.unread td:first-child::before { content: "● "; color: var(--blue); font-weight: 700; }

.status-pill { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: .76rem; font-weight: 600; background: #eef1f5; color: #5a6274; white-space: nowrap; }
.status-pill.status-ok { background: #e6f7ee; color: var(--success); }
.status-pill.status-warn { background: #fff3e0; color: #9a5b12; }
.status-pill.status-bad { background: #fdecec; color: var(--danger); }

.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 16px; }
.filter-bar input, .filter-bar select { margin: 0; }
.filter-bar input[type=text] { width: 220px; }
.filter-bar input[type=number] { width: 90px; }

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

.attachment-drop { border: 1px dashed #c6cede; border-radius: 9px; padding: 12px; margin-bottom: 14px; font-size: .88rem; background: #f9fafc; }

.contact-chip {
  display: inline-flex; align-items: center; gap: 6px; background: var(--accent-soft);
  color: #33427a; border-radius: 16px; padding: 5px 12px; font-size: .82rem;
  cursor: pointer; border: 1px solid #d5defb; margin: 0 6px 6px 0; transition: background .15s;
}
.contact-chip:hover { background: #dce4fc; }

.recipient-search-wrap { position: relative; }

.recipient-results {
  position: absolute;
  z-index: 20;
  left: 0;
  right: 0;
  top: 100%;
  margin-top: 2px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.12);
  max-height: 320px;
  overflow-y: auto;
}

.recipient-result-item {
  padding: 8px 12px;
  cursor: pointer;
  border-bottom: 1px solid #f0f1f3;
}
.recipient-result-item:last-child { border-bottom: none; }
.recipient-result-item:hover { background: #f5f7fa; }

.recipient-result-title { font-weight: 600; font-size: 0.92rem; }
.recipient-result-meta { font-size: 0.78rem; color: #888; margin-top: 2px; }
.recipient-result-warn { font-size: 0.78rem; color: var(--danger); margin-top: 2px; }
.recipient-result-empty { padding: 10px 12px; color: #888; font-size: 0.85rem; }

.recipient-selected-label { font-size: 0.82rem; color: var(--success); margin-top: 4px; display: block; }

/* Výběr typu subjektu (FO/PFO/PO/OVM) + adaptivní pole vyhledávání */
.rs-types { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.rs-type-btn {
  padding: 6px 12px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--dark);
  cursor: pointer;
}
.rs-type-btn:hover { background: #f0f3f8; }
.rs-type-btn.active { background: var(--blue); border-color: var(--blue); color: #fff; }

.rs-fields-wrap { position: relative; }
.rs-input {
  width: 100%;
  padding: 9px 11px;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}
.rs-person-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; }
.rs-person-grid .rs-input { width: 100%; }
.rs-search-btn { margin-top: 8px; }
@media (max-width: 520px) {
  .rs-person-grid { grid-template-columns: 1fr; }
}

/* Rozšířená (nepovinná) pole obálky ve formuláři nové zprávy */
.send-section {
  margin: 14px 0;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fafbfc;
}
.send-section > summary {
  cursor: pointer;
  padding: 10px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--dark);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  list-style: none;
}
.send-section > summary::-webkit-details-marker { display: none; }
.send-section > summary::before { content: "▸ "; color: #999; }
.send-section[open] > summary::before { content: "▾ "; }
.send-section .send-grid { padding: 0 12px 12px; display: grid; gap: 10px; }
.send-grid-2 { grid-template-columns: 1fr 1fr; }
.send-grid-5 { grid-template-columns: repeat(5, 1fr); }
.send-grid label { font-size: 0.78rem; color: #666; margin-bottom: 2px; display: block; }
.send-grid input { width: 100%; }
.rs-check { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; font-weight: normal; }
.rs-check input { width: auto; }
@media (max-width: 520px) {
  .send-grid-2, .send-grid-5 { grid-template-columns: 1fr 1fr; }
}

/* ── Přihlašovací stránky (login / verify) ── */
.auth-wrap {
  min-height: calc(100vh - 120px);
  display: flex; align-items: center; justify-content: center;
}
.auth-card {
  width: 100%; max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(20,25,40,.10), 0 2px 8px rgba(20,25,40,.05);
  overflow: hidden;
}
.auth-top {
  background: linear-gradient(180deg, var(--nav-2) 0%, var(--nav-1) 100%);
  padding: 26px 28px 22px;
  text-align: center;
}
.auth-badge {
  width: 54px; height: 54px; border-radius: 15px;
  background: rgba(59,91,219,.22);
  border: 1px solid rgba(120,150,255,.35);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 12px;
}
.auth-top h1 { color: #fff; font-size: 1.2rem; margin: 0 0 3px; }
.auth-top p { color: #9aa3bd; font-size: .82rem; margin: 0; }
.auth-body { padding: 26px 28px 28px; }
.auth-body > p.lead { color: var(--muted-c); font-size: .88rem; margin: 0 0 18px; line-height: 1.5; }
.auth-body label { margin-bottom: 6px; }
.auth-body input[type=text], .auth-body input[type=email] { margin-bottom: 16px; }
.btn-block { width: 100%; padding: .7rem; font-size: .95rem; }
.auth-code-input {
  text-align: center; letter-spacing: .4em; font-size: 1.35rem;
  font-weight: 600; font-family: ui-monospace, "SF Mono", Menlo, monospace;
}
.auth-divider { border: none; border-top: 1px solid var(--border); margin: 20px 0 14px; }
.auth-note { font-size: .78rem; color: var(--muted-c); text-align: center; line-height: 1.55; margin: 0; }
.auth-note a { color: var(--blue); text-decoration: none; }
.auth-note a:hover { text-decoration: underline; }
.auth-email { color: var(--text); font-weight: 600; }

/* =========================================================================
   RESPONZIVITA
   ========================================================================= */

/* Tablety a menší notebooky - navbar se sbalí do hamburgeru pod ~900px,
   kde už se 8+ odkazů + e-mail do jednoho řádku pohodlně nevejde. */
@media (max-width: 900px) {
  .topbar-inner { flex-wrap: wrap; gap: 10px 16px; }

  /* hamburger tlačítko (tři čárky) vpravo vedle loga */
  .nav-toggle {
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 42px; height: 38px; margin-left: auto; padding: 8px 9px;
    border-radius: 8px; cursor: pointer; border: 1px solid rgba(255,255,255,.14);
  }
  .nav-toggle span {
    display: block; height: 2px; width: 100%; background: #cfd6ea; border-radius: 2px;
    transition: transform .2s, opacity .2s;
  }
  .nav-toggle:hover { background: rgba(255,255,255,.07); }
  .nav-toggle-cb:focus-visible ~ .nav-toggle { outline: 2px solid #8ea6ff; outline-offset: 2px; }

  /* sbalená část zabírá celou šířku a defaultně je skrytá */
  .nav-collapse {
    flex-basis: 100%; display: none; flex-direction: column; align-items: stretch;
    gap: 4px; padding: 6px 0 4px;
  }
  .nav-toggle-cb:checked ~ .nav-collapse { display: flex; }

  /* křížek z hamburgeru, když je otevřeno */
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav-toggle-cb:checked ~ .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .topbar nav { flex-direction: column; align-items: stretch; gap: 2px; width: 100%; }
  .topbar nav a { padding: .6rem .8rem; font-size: .95rem; border-radius: 8px; }
  .nav-sep { width: 100%; height: 1px; margin: 6px 0; }

  .user-info {
    width: 100%; flex-wrap: wrap; gap: 10px; padding-top: 8px; margin-top: 4px;
    border-top: 1px solid rgba(255,255,255,.1);
  }
  .user-pill { max-width: 100%; }
}

/* Telefony */
@media (max-width: 640px) {
  .container { margin: 16px auto; padding: 0 14px; }
  .card { padding: 18px 16px; border-radius: 10px; }
  h1 { font-size: 1.25rem; }

  /* datové tabulky ať se dají odscrollovat do strany místo drcení sloupců */
  .table-wrap table { min-width: 560px; }

  /* dvousloupcové "štítek: hodnota" tabulky (O schránce, detail zprávy,
     doručenka, trezor) - zrušit pevnou šířku štítku, ať se hodnota vejde */
  .card table th[style*="width"] { width: 38% !important; }
  .card table[style*="max-width"] { max-width: 100% !important; }

  /* filtry (doručené/odeslané) a řádkové formuláře pod sebe, na plnou šířku */
  .filter-bar { flex-direction: column; align-items: stretch; gap: 8px; }
  .filter-bar input[type=text], .filter-bar input[type=number],
  .filter-bar select, .filter-bar .btn { width: 100%; }
  .filter-bar label { margin-bottom: 0; }

  .stack-form { flex-direction: column; align-items: stretch; }
  .stack-form .sf-field { flex: 1 1 auto !important; width: 100%; }
  .stack-form .sf-field input { width: 100%; }
  .stack-form .btn { width: 100%; }

  /* tlačítka v řádku akcí a btn-row ať se roztáhnou a dobře se trefují prstem */
  .btn-row .btn { flex: 1 1 auto; }
  .actions-row .btn { flex: 1 1 auto; text-align: center; }

  /* horní pruh s nadpisem + tlačítky (koncepty, doručené) ať se zalomí */
  .card > div[style*="space-between"] { flex-direction: column; align-items: stretch !important; gap: 10px; }

  /* jednoduché filtrovací formuláře (audit log apod.) pod sebe */
  .card > form[style*="display:flex"] { flex-direction: column; align-items: stretch; }
  .card > form[style*="display:flex"] .btn { width: 100%; }
}