/**
 * SVJ — kanonická tlačítka (UI/UX skill).
 * Role: primary | ghost | accent | send | danger
 * Legacy aliasy (hlasování): btn-primary, btn-secondary, btn-success, btn-warning, btn-danger, btn-info
 */

.btn,
a.btn,
button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  min-height: 2.5rem;
  box-sizing: border-box;
  background: linear-gradient(135deg, var(--blue, #1d4ed8), #123a7a);
  border: 1px solid transparent;
  border-radius: var(--radius-sm, 8px);
  color: #fff;
  font-family: var(--font, "Source Sans 3", "Segoe UI", system-ui, sans-serif);
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s, box-shadow 0.15s, filter 0.15s, background 0.15s;
  white-space: nowrap;
}

/* Odkazové CTA: globální `a { color }` nesmí přebít roli tlačítka */
body[data-ui-modern="true"] a.btn,
.auth-body a.btn,
a.btn {
  color: #fff;
  text-decoration: none;
}

.btn:hover,
a.btn:hover,
body[data-ui-modern="true"] a.btn:hover,
.auth-body a.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(29, 78, 216, 0.35);
  color: #fff;
  text-decoration: none;
}

.btn:focus-visible,
a.btn:focus-visible {
  outline: 2px solid #1d4ed8;
  outline-offset: 2px;
}

.btn:disabled,
.btn[disabled],
a.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  pointer-events: none;
}

/* Tertiary */
.btn.ghost,
.btn.btn-secondary,
.btn-secondary,
body[data-ui-modern="true"] a.btn.ghost,
body[data-ui-modern="true"] a.btn.btn-secondary,
.auth-body a.btn.ghost,
a.btn.ghost,
a.btn.btn-secondary,
a.btn-secondary {
  background: var(--bg-elevated, #fff);
  border: 1px solid var(--border, #c5d0e0);
  color: var(--text, #0f1b2d);
  box-shadow: none;
}

.btn.ghost:hover,
.btn.btn-secondary:hover,
.btn-secondary:hover,
body[data-ui-modern="true"] a.btn.ghost:hover,
.auth-body a.btn.ghost:hover,
a.btn.ghost:hover,
a.btn.btn-secondary:hover,
a.btn-secondary:hover {
  background: var(--surface-hover, #f1f5fb);
  border-color: var(--border-strong, #8fa3bf);
  box-shadow: none;
  transform: none;
  color: var(--text, #0f1b2d);
}

/* Generate / důležitá sekundární (amber) — tmavý text na jantaru (WCAG AA) */
.btn.accent,
.btn.btn-warning,
.btn-warning,
.btn.btn-accent,
.btn-accent,
body[data-ui-modern="true"] a.btn.accent,
body[data-ui-modern="true"] a.btn.btn-warning,
.auth-body a.btn.accent,
a.btn.accent,
a.btn.btn-warning,
a.btn-warning,
a.btn.btn-accent,
a.btn-accent {
  background: var(--accent, #c97800);
  border-color: var(--accent, #c97800);
  color: #0f1b2d;
  font-weight: 700;
}

.btn.accent:hover,
.btn.btn-warning:hover,
.btn-warning:hover,
.btn.btn-accent:hover,
.btn-accent:hover,
body[data-ui-modern="true"] a.btn.accent:hover,
.auth-body a.btn.accent:hover,
a.btn.accent:hover,
a.btn.btn-warning:hover,
a.btn-warning:hover,
a.btn.btn-accent:hover,
a.btn-accent:hover {
  filter: brightness(1.06);
  box-shadow: 0 4px 14px rgba(201, 120, 0, 0.35);
  color: #0f1b2d;
}

/* Odeslat / úspěch */
.btn.send,
.btn.btn-success,
.btn-success,
.btn.btn-send,
.btn-send,
body[data-ui-modern="true"] a.btn.send,
body[data-ui-modern="true"] a.btn.btn-success,
.auth-body a.btn.send,
a.btn.send,
a.btn.btn-success,
a.btn-success,
a.btn.btn-send,
a.btn-send {
  background: var(--green, #0f7a4a);
  border-color: var(--green, #0f7a4a);
  color: #fff;
}

.btn.send:hover,
.btn.btn-success:hover,
.btn-success:hover,
.btn.btn-send:hover,
.btn-send:hover,
body[data-ui-modern="true"] a.btn.send:hover,
.auth-body a.btn.send:hover,
a.btn.send:hover,
a.btn.btn-success:hover,
a.btn-success:hover,
a.btn.btn-send:hover,
a.btn-send:hover {
  filter: brightness(1.08);
  box-shadow: 0 4px 14px rgba(15, 122, 74, 0.35);
  color: #fff;
}

/* Destruktivní */
.btn.danger,
.btn.btn-danger,
.btn-danger,
body[data-ui-modern="true"] a.btn.danger,
body[data-ui-modern="true"] a.btn.btn-danger,
.auth-body a.btn.danger,
a.btn.danger,
a.btn.btn-danger,
a.btn-danger {
  background: var(--red, #c0392b);
  border-color: var(--red, #c0392b);
  color: #fff;
}

.btn.danger:hover,
.btn.btn-danger:hover,
.btn-danger:hover,
body[data-ui-modern="true"] a.btn.danger:hover,
.auth-body a.btn.danger:hover,
a.btn.danger:hover,
a.btn.btn-danger:hover,
a.btn-danger:hover {
  filter: brightness(1.06);
  box-shadow: 0 4px 14px rgba(192, 57, 43, 0.35);
  color: #fff;
}

/* Cyan / info (navigace modulů, PDF info) */
.btn.cyan,
.btn.btn-info,
.btn-info,
.btn.sa-hlas-btn,
.sa-hlas-btn,
body[data-ui-modern="true"] a.btn.cyan,
body[data-ui-modern="true"] a.btn.btn-info,
body[data-ui-modern="true"] a.sa-hlas-btn,
.auth-body a.btn.cyan,
a.btn.cyan,
a.btn.btn-info,
a.btn-info,
a.btn.sa-hlas-btn,
a.sa-hlas-btn {
  background: linear-gradient(135deg, #0e7490, #0b6e8a);
  border-color: #0b6e8a;
  color: #fff;
}

.btn.cyan:hover,
.btn.btn-info:hover,
.btn-info:hover,
.btn.sa-hlas-btn:hover,
.sa-hlas-btn:hover,
body[data-ui-modern="true"] a.btn.cyan:hover,
.auth-body a.btn.cyan:hover,
a.btn.cyan:hover,
a.btn.btn-info:hover,
a.btn-info:hover,
a.btn.sa-hlas-btn:hover,
a.sa-hlas-btn:hover {
  filter: brightness(1.08);
  box-shadow: 0 4px 14px rgba(11, 110, 138, 0.35);
  color: #fff;
}

/* Primary alias (hlasování Bootstrap-like) */
.btn.btn-primary,
.btn-primary,
body[data-ui-modern="true"] a.btn.btn-primary,
.auth-body a.btn.btn-primary,
a.btn.btn-primary,
a.btn-primary {
  background: linear-gradient(135deg, var(--blue, #1d4ed8), #123a7a);
  border-color: transparent;
  color: #fff;
}

.btn-sm,
.btn.btn-sm,
.tiny-btn {
  padding: 0.3rem 0.65rem;
  min-height: 2rem;
  font-size: 0.75rem;
  border-radius: 6px;
}

/* Toolbar na tmavém pruhu (editory) */
.svj-toolbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  padding: 0.65rem 0.85rem;
  margin-bottom: 0.85rem;
  border-radius: var(--radius, 12px);
  background: #0e5f6c;
  color: #fff;
  box-shadow: 0 4px 14px rgba(14, 95, 108, 0.35);
}

.svj-toolbar .tb-label {
  font-size: 0.78rem;
  opacity: 0.9;
  margin-right: 0.25rem;
  width: 100%;
}

@media (min-width: 700px) {
  .svj-toolbar .tb-label {
    width: auto;
  }
}

.svj-toolbar .btn,
.svj-toolbar a.btn,
body[data-ui-modern="true"] .svj-toolbar a.btn,
.auth-body .svj-toolbar a.btn {
  background: #fff;
  color: #0e5f6c;
  border: none;
  box-shadow: none;
}

.svj-toolbar .btn:hover,
.svj-toolbar a.btn:hover,
body[data-ui-modern="true"] .svj-toolbar a.btn:hover {
  filter: brightness(0.97);
  box-shadow: none;
  color: #0e5f6c;
}

.svj-toolbar .btn.accent,
.svj-toolbar .btn.btn-accent,
.svj-toolbar .btn-accent,
.svj-toolbar a.btn.accent,
body[data-ui-modern="true"] .svj-toolbar a.btn.accent {
  background: #fbbf24;
  color: #1c1917;
}

.svj-toolbar .btn.send,
.svj-toolbar .btn.btn-send,
.svj-toolbar .btn-send,
.svj-toolbar a.btn.send,
body[data-ui-modern="true"] .svj-toolbar a.btn.send {
  background: #22c55e;
  color: #052e16;
}

.svj-toolbar .btn.ghost,
.svj-toolbar .btn.btn-ghost,
.svj-toolbar .btn-ghost,
.svj-toolbar a.btn.ghost,
body[data-ui-modern="true"] .svj-toolbar a.btn.ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.svj-toolbar .btn.ghost:hover,
.svj-toolbar a.btn.ghost:hover,
body[data-ui-modern="true"] .svj-toolbar a.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}