/* aifin Pro — Brand & Design System
 * Sprint 1.11. Source of truth pre design tokens + komponenty.
 * NEMENIŤ ad-hoc v templatoch — vždy cez triedy odtiaľto.
 */

:root {
  /* === Brand colors (extracted z aifin_logo_source.jpg, viď colors.json) === */
  --aifin-red: #E00328;
  --aifin-red-dark: #AD0019;
  --aifin-red-light: #FFADB9;
  --aifin-warm-grey: #584840;
  --aifin-warm-grey-dark: #3A302B;

  /* === Semantic colors === */
  --text-strong: #2a2421;
  --text: #4a3f38;
  --text-muted: #8a7d76;
  --bg: #ffffff;
  --surface: #faf8f6;
  --surface-2: #f4efe9;
  --border: #e8e2dc;
  --border-strong: #d4cbc3;

  /* === Status colors === */
  --success: #15803d;
  --success-bg: #f0fdf4;
  --warning: #b45309;
  --warning-bg: #fffbeb;
  --error: var(--aifin-red);
  --error-bg: var(--aifin-red-light);
  --info: #1e40af;
  --info-bg: #eff6ff;

  /* === Typography === */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

  /* === Spacing (4px base) === */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;

  /* === Border radius === */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* === Shadows === */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-modal: 0 20px 25px -5px rgba(0, 0, 0, 0.10), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* === Transitions === */
  --transition-fast: 150ms ease;
  --transition: 200ms ease;
}

/* ========================================================================
   Témy — tmavý režim (DESIGN_SYSTEM.md §2.3)
   ------------------------------------------------------------------------
   Tmavá NIE je inverzia: karta (--bg) je *svetlejšia* než pozadie (--surface)
   — elevation cez svetlosť, nie cez tieň. Stavové farby zosvetlené, soft
   pozadia ako priehľadné, aby fungovali naprieč všetkými povrchmi. Značková
   červená zosvetlená na kontrast.

   Default = systémová preferencia: keď používateľ nemá zvolenú tému (žiadny
   data-theme atribút), aplikujú sa dark tokeny len ak to chce systém. Keď si
   zvolí, server vloží data-theme="light|dark" na <html> (no-FOUC, SSR).
   ======================================================================== */

/* Spoločná sada dark tokenov — duplikovaná v explicitnom prepínači a v
   system-preference media query (CSS nedovolí zlúčiť @media s bežným selektorom). */
[data-theme="dark"] {
  /* Povrchy: pozadie najtmavšie, karty svetlejšie (elevation cez svetlosť). */
  --bg: #211C16;          /* karty, panely, tabuľky, inputy */
  --surface: #17140F;     /* pozadie aplikácie + hlavičky/hover tabuliek */
  --surface-2: #2A241D;   /* zapustené plochy */
  --border: #332C24;
  --border-strong: #42392F;

  /* Text */
  --text-strong: #F4EFE7;
  --text: #D8CFC4;
  --text-muted: #9A8E81;

  /* Značka — zosvetlená, aby akčné prvky „svietili" na tmavom. */
  --aifin-red: #FF4D63;
  --aifin-red-dark: #FF6478;   /* hover/active = svetlejšia (opak light témy) */
  --aifin-red-light: rgba(255, 77, 99, 0.28);  /* focus glow + error-bg dvojrola */

  /* Stavové — sýte zosvetlené, soft ako priehľadné (fungujú na bg aj surface). */
  --success: #4ADE80;  --success-bg: rgba(74, 222, 128, 0.14);
  --warning: #F0A858;  --warning-bg: rgba(240, 168, 88, 0.15);
  --info:    #6FB0E0;  --info-bg:    rgba(111, 176, 224, 0.15);
  --error: var(--aifin-red);
  --error-bg: rgba(255, 77, 99, 0.16);

  /* Tiene na tmavom nefungujú ako v light — jemné, tmavé, nenápadné. */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.5), 0 24px 48px rgba(0, 0, 0, 0.4);
  --shadow-modal: 0 20px 50px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: dark) {
  /* No-cookie používateľ + systém v tmavom → dark. Explicitné light/dark
     (server cez data-theme) má prednosť cez :not(). */
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --bg: #211C16;
    --surface: #17140F;
    --surface-2: #2A241D;
    --border: #332C24;
    --border-strong: #42392F;
    --text-strong: #F4EFE7;
    --text: #D8CFC4;
    --text-muted: #9A8E81;
    --aifin-red: #FF4D63;
    --aifin-red-dark: #FF6478;
    --aifin-red-light: rgba(255, 77, 99, 0.28);
    --success: #4ADE80;  --success-bg: rgba(74, 222, 128, 0.14);
    --warning: #F0A858;  --warning-bg: rgba(240, 168, 88, 0.15);
    --info:    #6FB0E0;  --info-bg:    rgba(111, 176, 224, 0.15);
    --error: var(--aifin-red);
    --error-bg: rgba(255, 77, 99, 0.16);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.5), 0 24px 48px rgba(0, 0, 0, 0.4);
    --shadow-modal: 0 20px 50px rgba(0, 0, 0, 0.6);
  }
}

/* Plynulý prechod pri prepnutí témy (rešpektuje reduced-motion nižšie). */
body { transition: background-color var(--transition), color var(--transition); }

/* ========================================================================
   Base
   ======================================================================== */

body {
  font-family: var(--font-sans);
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  color: var(--text-strong);
  font-weight: 600;
  letter-spacing: -0.01em;
}

a {
  color: var(--aifin-red);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--aifin-red-dark);
  text-decoration: underline;
}

/* Skip-to-main link — visible iba na focus pre keyboard accessibility */
.skip-to-main {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--aifin-red);
  color: white;
  padding: var(--space-2) var(--space-4);
  z-index: 100;
  text-decoration: none;
  border-radius: 0 0 var(--radius) 0;
}
.skip-to-main:focus {
  top: 0;
}

/* ========================================================================
   Buttons
   ======================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
  text-decoration: none;
  min-height: 40px;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 2px solid var(--aifin-red-light);
  outline-offset: 2px;
}
.btn:disabled, .btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--aifin-red);
  color: white;
}
.btn-primary:hover { background: var(--aifin-red-dark); color: white; text-decoration: none; }
.btn-primary:active { transform: translateY(1px); }

.btn-secondary {
  background: transparent;
  border-color: var(--aifin-red);
  color: var(--aifin-red);
}
.btn-secondary:hover { background: var(--aifin-red); color: white; text-decoration: none; }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--surface); color: var(--text-strong); text-decoration: none; }

.btn-destructive {
  background: transparent;
  border-color: var(--error);
  color: var(--error);
}
.btn-destructive:hover { background: var(--error); color: white; text-decoration: none; }

.btn-sm { padding: 6px 12px; font-size: 13px; min-height: 32px; }
.btn-lg { padding: 14px 20px; font-size: 16px; min-height: 48px; }

/* HTMX loading state — automaticky pridáva htmx-request triedu */
.btn.htmx-request {
  opacity: 0.6;
  cursor: wait;
}

/* ========================================================================
   Cards / Panels
   ======================================================================== */

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
}
.card-hover:hover {
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-strong);
  margin: 0;
}

.panel {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.panel-header {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.panel-body { padding: var(--space-6); }

/* ========================================================================
   Badges
   ======================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-full);
  line-height: 1.4;
  white-space: nowrap;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-error   { background: var(--error-bg);   color: var(--aifin-red-dark); }
.badge-info    { background: var(--info-bg);    color: var(--info); }
.badge-neutral { background: var(--surface-2);  color: var(--text); }
.badge-count   {
  background: var(--aifin-red);
  color: white;
  font-size: 11px;
  font-weight: 600;
  padding: 1px 6px;
  min-width: 18px;
  justify-content: center;
}

/* ========================================================================
   Form fields
   ======================================================================== */

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.form-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-strong);
}
.form-required { color: var(--aifin-red); margin-left: 2px; }
.form-input,
.form-textarea,
.form-select {
  width: 100%;
  font-family: inherit;
  font-size: 14px;
  color: var(--text-strong);
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 10px 12px;
  min-height: 40px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--aifin-red);
  box-shadow: 0 0 0 3px var(--aifin-red-light);
}
.form-textarea { min-height: 96px; resize: vertical; }
.form-help {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: var(--space-1);
}
.form-error {
  font-size: 13px;
  color: var(--error);
  margin-top: var(--space-1);
}
.form-field.has-error .form-input,
.form-field.has-error .form-select,
.form-field.has-error .form-textarea {
  border-color: var(--error);
}

/* ========================================================================
   Alerts (replaces ad-hoc bg-* utility combos)
   ======================================================================== */

.alert {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-4);
  border-radius: var(--radius);
  border: 1px solid;
  font-size: 14px;
}
.alert-success { background: var(--success-bg); color: var(--success); border-color: rgba(21, 128, 61, 0.2); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border-color: rgba(180, 83, 9, 0.2); }
.alert-error   { background: var(--error-bg);   color: var(--aifin-red-dark); border-color: var(--aifin-red); }
.alert-info    { background: var(--info-bg);    color: var(--info); border-color: rgba(30, 64, 175, 0.2); }
.alert-icon { font-size: 18px; line-height: 1; flex-shrink: 0; }

/* ========================================================================
   Modal
   ======================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(42, 36, 33, 0.6);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}
.modal-backdrop.hidden { display: none; }
.modal {
  background: var(--bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 16px; font-weight: 600; margin: 0; }
.modal-close {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 24px;
  line-height: 1;
  padding: var(--space-1);
}
.modal-close:hover { color: var(--text-strong); }
.modal-body { padding: var(--space-6); overflow-y: auto; flex: 1; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border);
}

/* ========================================================================
   Empty state
   ======================================================================== */

.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
  background: var(--surface);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
}
.empty-state-icon {
  display: block;
  margin: 0 auto var(--space-4);
  color: var(--text-muted);
}
.empty-state-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-strong);
  margin: 0 0 var(--space-2);
}
.empty-state-description {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0 0 var(--space-6);
  max-width: 380px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================================================
   Toast notifications
   ======================================================================== */

.toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}
.toast {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  background: var(--bg);
  border-left: 4px solid var(--aifin-red);
  font-size: 14px;
  pointer-events: auto;
  animation: slide-in 200ms ease-out;
  max-width: 360px;
}
.toast-success { border-left-color: var(--success); }
.toast-error   { border-left-color: var(--error); }
.toast-info    { border-left-color: var(--info); }
.toast-warning { border-left-color: var(--warning); }

@keyframes slide-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ========================================================================
   Loading spinner
   ======================================================================== */

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 600ms linear infinite;
}
.spinner-md { width: 20px; height: 20px; border-width: 2px; }
.spinner-lg { width: 32px; height: 32px; border-width: 3px; }
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ========================================================================
   Navigation
   ======================================================================== */

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  color: var(--text);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
}
.nav-link:hover { background: var(--surface); color: var(--aifin-red); text-decoration: none; }
.nav-link[aria-current="page"] {
  color: var(--aifin-red);
  background: var(--surface);
}

/* ========================================================================
   Tables — dátová prezentácia (DESIGN_SYSTEM.md §8.2)
   ======================================================================== */

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
/* Hlavička: label token — malé, uppercase, muted (§8.2). */
.table thead th {
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding: var(--space-2) var(--space-4);
  background: var(--surface);
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap;
}
.table tbody td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  /* Riadky dýchajú — min. 48px výška cez vertikálny padding (§8.2). */
}
.table tbody tr {
  min-height: 48px;
}
/* Jemný hover namiesto zebra pruhov — tie sú vizuálny šum (§8.2). */
.table tbody tr:hover { background: var(--surface); }
.table tbody tr:last-child td { border-bottom: none; }

/* Čísla a sumy: mono, tabular, vpravo — zarovnajú sa pod sebou (§8.2, §3). */
.table .num,
.table th.num,
.table td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}
/* Mono bez zarovnania vpravo — identifikátory (číslo FA, IČO/DIČ) (§3, §8.4). */
.mono { font-family: var(--font-mono); }

/* Husté finančné cross-tab tabuľky (DPH), kde kartový režim nedáva zmysel:
   tabuľka scrolluje vodorovne sama v sebe (§7 variant a) → nikdy nepretečie
   stránku. Použiť keď nie je obaľujúci .overflow-x-auto div. */
.table-scroll { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll::-webkit-scrollbar { height: 6px; }
.table-scroll::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }

/* Total / „spolu" riadok — silnejší text, horná linka (§8.2). */
.table tfoot td,
.table tr.is-total td {
  font-weight: 600;
  color: var(--text-strong);
  border-top: 1px solid var(--border-strong);
  border-bottom: none;
  background: var(--surface);
}

/* Sort indikátor pre klikateľné hlavičky. */
.table th[aria-sort] { cursor: pointer; }
.table th[aria-sort]::after { content: " ↕"; opacity: 0.35; font-size: 11px; }
.table th[aria-sort="ascending"]::after { content: " ↑"; opacity: 1; }
.table th[aria-sort="descending"]::after { content: " ↓"; opacity: 1; }

/* Wrapper — orámovaná karta okolo tabuľky (nahrádza ad-hoc bg-white/shadow). */
.table-wrap {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
/* Variant (a) z §7: vodorovný scroll s primknutým prvým stĺpcom. */
.table-wrap.is-scroll { overflow-x: auto; }
.table-scroll-sticky thead th:first-child,
.table-scroll-sticky tbody td:first-child {
  position: sticky;
  left: 0;
  background: var(--bg);
  z-index: 1;
}
.table-scroll-sticky thead th:first-child { background: var(--surface); }

/* ------------------------------------------------------------------------
   Mobilný kartový fallback (DESIGN_SYSTEM.md §7) — variant (b), preferovaný
   pre faktúry. Každý <tr> sa pod md (768px) zmení na kartu, každý <td> ukáže
   svoj data-label. Použitie: <table class="table table-stack">, na každom
   <td data-label="Suma">. Bez data-label sa label jednoducho nezobrazí.
   ------------------------------------------------------------------------ */
@media (max-width: 767px) {
  .table-stack thead { display: none; }
  .table-stack,
  .table-stack tbody,
  .table-stack tr,
  .table-stack td {
    display: block;
    width: 100%;
    /* border-box — nezávislosť od Tailwind preflight; padding+border sa
       nepripočítava k 100 % (inak overflow + clip cez .table-wrap). */
    box-sizing: border-box;
  }

  .table-stack tr {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-3);
  }
  .table-stack tr:hover { background: var(--bg); }
  .table-stack tr:last-child { margin-bottom: 0; }

  .table-stack td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-4);
    padding: var(--space-2) 0;
    border-bottom: 1px solid var(--border);
    text-align: right;
    min-width: 0;       /* hodnota sa môže zalomiť, nie pretiecť */
    overflow-wrap: anywhere;
    white-space: normal; /* zruší prípadné whitespace-nowrap z tabuľky */
    /* Dotykový cieľ — riadok karty pohodlne tappovateľný (§7, §11). */
    min-height: 36px;
  }
  .table-stack td:last-child { border-bottom: none; }
  .table-stack td::before {
    content: attr(data-label);
    flex: 0 0 auto;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
  }
  /* Číselné bunky aj v karte zarovnané vpravo, mono ostáva. */
  .table-stack td.num { text-align: right; }
  /* Bunka skrytá v kartovom režime (napr. colspan label v total riadku). */
  .table-stack .stack-hide { display: none !important; }
  /* Bunka bez labelu (napr. samostatná akcia) zaberie plnú šírku. */
  .table-stack td[data-label=""]::before,
  .table-stack td:not([data-label])::before { content: none; }
}

/* ========================================================================
   Novinky — Hero stats banner (Sprint 1.13.x)
   ======================================================================== */

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  padding: var(--space-6);
  margin-bottom: var(--space-8);
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.hero-stat:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
}
.hero-stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--aifin-red);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.hero-stat-label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.hero-stat-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: var(--space-1);
}
@media (max-width: 768px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); padding: var(--space-4); }
  .hero-stat-value { font-size: 26px; }
}

/* ========================================================================
   Novinky — Featured "Sprint of the week" card
   ======================================================================== */

.featured-changelog {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--aifin-red);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow);
  margin-bottom: var(--space-6);
}
.featured-changelog .featured-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 3px 10px;
  background: var(--aifin-red);
  color: white;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}
.featured-changelog .featured-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-strong);
  margin: var(--space-3) 0 var(--space-2) 0;
  letter-spacing: -0.01em;
}
.featured-changelog .featured-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}
.featured-changelog .featured-summary {
  font-size: 15px;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}
.featured-changelog .featured-test-box {
  background: var(--info-bg);
  border-left: 3px solid var(--info);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-strong);
}
.featured-changelog .featured-test-box-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--info);
}

/* ========================================================================
   Novinky — Vertical timeline (compact past entries)
   ======================================================================== */

.changelog-timeline {
  position: relative;
  padding-left: var(--space-8);
}
.changelog-timeline::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--aifin-red) 0%,
    var(--aifin-red-light) 50%,
    var(--border) 100%
  );
  border-radius: 1px;
}
.timeline-entry {
  position: relative;
  margin-bottom: var(--space-6);
}
.timeline-entry:last-child { margin-bottom: 0; }

.timeline-entry-node {
  position: absolute;
  left: calc(-1 * var(--space-8) + 4px);
  top: 4px;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border: 2px solid var(--aifin-red);
  border-radius: 50%;
  font-size: 11px;
  line-height: 1;
  color: var(--aifin-red);
  z-index: 1;
}
.timeline-entry-node[data-category="feature"] {
  border-color: var(--info);
  color: var(--info);
}
.timeline-entry-node[data-category="improvement"] {
  border-color: #7c3aed; /* purple — improvement */
  color: #7c3aed;
}
.timeline-entry-node[data-category="bugfix"] {
  border-color: var(--warning);
  color: var(--warning);
}
.timeline-entry-node[data-category="infrastructure"] {
  border-color: var(--text-muted);
  color: var(--text-muted);
}

.timeline-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.timeline-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
  border-color: var(--border-strong);
}
.timeline-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}
.timeline-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-strong);
  margin: 0 0 var(--space-1) 0;
}
.timeline-card-summary {
  font-size: 13px;
  color: var(--text);
  line-height: 1.5;
  margin: 0;
}

/* ========================================================================
   Novinky — Horizontal roadmap (FÁZA A-E)
   ======================================================================== */

.roadmap {
  display: grid;
  grid-template-columns: repeat(5, minmax(180px, 1fr));
  gap: var(--space-3);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-2);
  scroll-snap-type: x mandatory;
}
.roadmap-phase {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4) var(--space-5);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  scroll-snap-align: start;
  min-width: 0;
}
.roadmap-phase:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}
.roadmap-phase.is-current {
  border-color: var(--aifin-red);
  background: linear-gradient(180deg, var(--bg) 0%, var(--aifin-red-light) 220%);
}
.roadmap-phase.is-current::before {
  content: "Práve teraz";
  position: absolute;
  top: -10px;
  left: var(--space-4);
  padding: 2px 8px;
  background: var(--aifin-red);
  color: white;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}
.roadmap-phase-header {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-3);
}
.roadmap-phase-id {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.roadmap-phase-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-strong);
  letter-spacing: -0.01em;
}
.roadmap-phase-months {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}
.roadmap-phase-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--text);
}
.roadmap-phase-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  line-height: 1.4;
}
.roadmap-phase-feature-icon {
  flex-shrink: 0;
  width: 18px;
  text-align: center;
}
.roadmap-phase-deadline {
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px dashed var(--border);
  font-size: 11px;
  color: var(--text-muted);
}
.roadmap-phase-deadline strong {
  display: block;
  color: var(--text-strong);
  font-size: 12px;
  margin-top: 2px;
}

@media (max-width: 900px) {
  .roadmap {
    grid-template-columns: repeat(5, 80%);
    gap: var(--space-3);
  }
}

/* ========================================================================
   Responsive helpers
   ======================================================================== */

@media (max-width: 640px) {
  .btn { min-height: 44px; }  /* WCAG 44px touch target */
  .form-input, .form-textarea, .form-select { min-height: 44px; font-size: 16px; }
  .modal { max-width: 100%; max-height: 100vh; border-radius: 0; }
  .nav-mobile-hide { display: none; }
}

/* ========================================================================
   Reduced motion — quality floor (DESIGN_SYSTEM.md §5, §11). Povinné, nie
   nice-to-have: vypína všetky prechody/animácie pre používateľov, ktorí ich
   v systéme vypli.
   ======================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ========================================================================
   Theme toggle — prepínač svetlá/tmavá v topbare (DESIGN_SYSTEM.md §2.3)
   ======================================================================== */

/* Topbar ikonové ovládače — jednotná mierka, 40px desktop / 44px mobil,
   pohodlný dotykový cieľ a rozostup (DESIGN_SYSTEM.md §7, Časť E). */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  flex-shrink: 0;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}
.icon-btn:hover { background: var(--surface); border-color: var(--border-strong); }
.icon-btn:focus-visible { outline: 2px solid var(--aifin-red); outline-offset: 2px; }
.icon-btn .icon { display: inline-block; line-height: 1; }

/* Prepínač témy — JEDEN prvok, JEDNA cieľová ikona (Časť E §8): v light sa
   zobrazí mesiac (= prepni na tmavú), v dark slnko (= prepni na svetlú).
   Nikdy nie obe naraz. */
.theme-toggle .icon::before { content: "\263E"; }                         /* ☾ */
[data-theme="dark"] .theme-toggle .icon::before { content: "\2600"; }     /* ☀ */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) .theme-toggle .icon::before { content: "\2600"; }
}

/* ========================================================================
   Mobilná navigácia — hamburger + zbalené menu (DESIGN_SYSTEM.md §6.1/§7)
   ======================================================================== */

.mobile-nav { background: var(--bg); }
.nav-link-mobile {
  display: flex;
  align-items: center;
  width: 100%;
  padding: var(--space-3);
  min-height: 44px;   /* dotykový cieľ (§7, §11) */
  border-radius: var(--radius);
}

/* Hamburger — JEDNA ikona podľa stavu: ≡ zatvorené, × otvorené (Časť E §9). */
.nav-toggle .icon::before { content: "\2261"; }                    /* ≡ */
#navToggle[aria-expanded="true"] .icon::before { content: "\00D7"; } /* × */

/* Dotykové ciele topbar tlačidiel na mobile — 44×44, väčšia ikona (§7, §11). */
@media (max-width: 767px) {
  .icon-btn { width: 44px; height: 44px; font-size: 22px; }
}

/* Tab strip (napr. admin portál sub-nav) — vodorovný scroll bez viditeľného
   scrollbaru, aby tab bar nepretláčal šírku stránky (§7). */
.tab-strip { scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.tab-strip::-webkit-scrollbar { display: none; }

/* ========================================================================
   Navigačné zóny — inbox ikony, dropdown, avatar (NAVIGATION_CONVENTION.md)
   ======================================================================== */

/* Zóna 2 — inbox ikona s číselným badge v rohu. */
.nav-inbox { position: relative; color: var(--text); }
.nav-inbox:hover { color: var(--text-strong); }
.nav-inbox-badge {
  position: absolute;
  top: -3px;
  right: -3px;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  font-size: 10px;
  line-height: 17px;
}

/* Zóna 3/4 — dropdown (Nastavenia, účet). */
.dropdown { position: relative; }
.dropdown-trigger { cursor: pointer; background: transparent; border: none; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 210px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-1);
  z-index: 60;
  display: none;
}
.dropdown-menu-right { left: auto; right: 0; }
.dropdown.is-open > .dropdown-menu { display: block; }
.dropdown-item {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
}
.dropdown-item:hover { background: var(--surface); color: var(--text-strong); text-decoration: none; }
.dropdown-header {
  padding: var(--space-2) var(--space-3);
  font-size: 12px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-1);
  word-break: break-all;
}

/* Zóna 4 — avatar (krúžok s iniciálkami). */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--surface-2);
  color: var(--text-strong);
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}
.avatar:hover { background: var(--surface); border-color: var(--border-strong); }
.avatar:focus-visible { outline: 2px solid var(--aifin-red); outline-offset: 2px; }

@media (max-width: 767px) {
  .avatar { width: 44px; height: 44px; }
}
