/* ================================================================
   THEME VARIABLES
   Chcete-li změnit barvy celé aplikace, upravte jen tuto sekci.
   Každá stránka může přepsat --page-accent pro vlastní gradient.
   ================================================================ */

/* ---------- Tmavé téma (výchozí) ---------- */
:root {
  /* Pozadí */
  --bg-base:          #020617;        /* hlavní pozadí */
  --bg-deep:          #000000;        /* nejhlubší tmavina */
  --bg-surface:       #0f172a;        /* povrch / sidebar */
  --bg-surface-a85:   rgba(15, 23, 42, 0.85);
  --bg-surface-a90:   rgba(15, 23, 42, 0.90);
  --bg-surface-a95:   rgba(15, 23, 42, 0.95);
  --bg-surface-a98:   rgba(15, 23, 42, 0.98);

  /* Text */
  --text-primary:     #e5e7eb;        /* hlavní text */
  --text-muted:       #9ca3af;        /* tlumený text */
  --text-subtle:      #cbd5f5;        /* jemný text */
  --text-on-dark:     #f9fafb;        /* text na tmavém prvku */

  /* Rámečky */
  --border:           rgba(148, 163, 184, 0.50);
  --border-subtle:    rgba(148, 163, 184, 0.30);
  --border-accent:    rgba(96,  165, 250, 0.90);  /* hover / aktivní */

  /* Akcenty */
  --accent:           #1d4ed8;
  --accent-indigo:    #6366f1;
  --accent-cyan:      #22d3ee;
  --accent-sky:       #0ea5e9;
  --accent-a25:       rgba(37, 99, 235, 0.25);
  --accent-a35:       rgba(37, 99, 235, 0.35);
  --accent-glow:      rgba(129, 140, 248, 0.15);

  /* Odkazy a tlačítka */
  --link-color:           #006bb7;
  --btn-primary-bg:       #1b6ec2;
  --btn-primary-border:   #1861ac;

  /* Navigace (sidebar) */
  --sidebar-bg:           #0f172a;
  --sidebar-shadow:       2px 0 12px rgba(15, 23, 42, 0.6);
  --nav-link-color:       #c7d2fe;
  --nav-active-from:      #6366f1;
  --nav-active-to:        #22d3ee;
  --nav-separator-color:  #6b7280;

  /* Stíny */
  --shadow-card:      0 18px 45px rgba(15, 23, 42, 0.90);
  --shadow-card-lg:   0 26px 60px rgba(15, 23, 42, 1.00);
  --shadow-modal:     0 24px 70px rgba(0,  0,  0,  0.90);

  /* Validace */
  --color-valid:      #26b050;
  --color-invalid:    #e50000;

  /* Akcentní barva gradientu stránky – přepište v .xxx-root každé stránky */
  --page-accent:      #1d4ed8;
}

/* ---------- Světlé téma – automatické (podle OS, pokud není ručně přepsáno) ---------- */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-base:          #f8fafc;
    --bg-deep:          #e2e8f0;
    --bg-surface:       #ffffff;
    --bg-surface-a85:   rgba(255, 255, 255, 0.85);
    --bg-surface-a90:   rgba(255, 255, 255, 0.90);
    --bg-surface-a95:   rgba(255, 255, 255, 0.95);
    --bg-surface-a98:   rgba(255, 255, 255, 0.98);

    --text-primary:     #0f172a;
    --text-muted:       #64748b;
    --text-subtle:      #334155;
    --text-on-dark:     #ffffff;

    --border:           rgba(100, 116, 139, 0.40);
    --border-subtle:    rgba(100, 116, 139, 0.20);
    --border-accent:    rgba(37,  99,  235, 0.70);

    --accent-a25:       rgba(37, 99, 235, 0.10);
    --accent-a35:       rgba(37, 99, 235, 0.15);
    --accent-glow:      rgba(99, 102, 241, 0.10);

    --link-color:           #1d4ed8;
    --sidebar-bg:           #1e293b;
    --sidebar-shadow:       2px 0 12px rgba(15, 23, 42, 0.15);
    --nav-link-color:       #bfdbfe;
    --nav-separator-color:  #94a3b8;

    --shadow-card:      0 4px  16px rgba(15, 23, 42, 0.10);
    --shadow-card-lg:   0 8px  28px rgba(15, 23, 42, 0.18);
    --shadow-modal:     0 24px 70px rgba(15, 23, 42, 0.50);
  }
}

/* ---------- Světlé téma – ruční přepnutí (přidejte data-theme="light" na <html>) ---------- */
[data-theme="light"] {
  --bg-base:          #f8fafc;
  --bg-deep:          #e2e8f0;
  --bg-surface:       #ffffff;
  --bg-surface-a85:   rgba(255, 255, 255, 0.85);
  --bg-surface-a90:   rgba(255, 255, 255, 0.90);
  --bg-surface-a95:   rgba(255, 255, 255, 0.95);
  --bg-surface-a98:   rgba(255, 255, 255, 0.98);

  --text-primary:     #0f172a;
  --text-muted:       #64748b;
  --text-subtle:      #334155;
  --text-on-dark:     #ffffff;

  --border:           rgba(100, 116, 139, 0.40);
  --border-subtle:    rgba(100, 116, 139, 0.20);
  --border-accent:    rgba(37,  99,  235, 0.70);

  --accent-a25:       rgba(37, 99, 235, 0.10);
  --accent-a35:       rgba(37, 99, 235, 0.15);
  --accent-glow:      rgba(99, 102, 241, 0.10);

  --link-color:           #1d4ed8;
  --sidebar-bg:           #1e293b;
  --sidebar-shadow:       2px 0 12px rgba(15, 23, 42, 0.15);
  --nav-link-color:       #bfdbfe;
  --nav-separator-color:  #94a3b8;

  --shadow-card:      0 4px  16px rgba(15, 23, 42, 0.10);
  --shadow-card-lg:   0 8px  28px rgba(15, 23, 42, 0.18);
  --shadow-modal:     0 24px 70px rgba(15, 23, 42, 0.50);
}

/* ---------- Tmavé téma – ruční přepnutí (přidejte data-theme="dark" na <html>) ---------- */
[data-theme="dark"] {
  --bg-base:          #020617;
  --bg-deep:          #000000;
  --bg-surface:       #0f172a;
  --bg-surface-a85:   rgba(15, 23, 42, 0.85);
  --bg-surface-a90:   rgba(15, 23, 42, 0.90);
  --bg-surface-a95:   rgba(15, 23, 42, 0.95);
  --bg-surface-a98:   rgba(15, 23, 42, 0.98);

  --text-primary:     #e5e7eb;
  --text-muted:       #9ca3af;
  --text-subtle:      #cbd5f5;
  --text-on-dark:     #f9fafb;

  --border:           rgba(148, 163, 184, 0.50);
  --border-subtle:    rgba(148, 163, 184, 0.30);
  --border-accent:    rgba(96,  165, 250, 0.90);

  --accent-a25:       rgba(37, 99, 235, 0.25);
  --accent-a35:       rgba(37, 99, 235, 0.35);
  --accent-glow:      rgba(129, 140, 248, 0.15);

  --link-color:           #006bb7;
  --sidebar-bg:           #0f172a;
  --sidebar-shadow:       2px 0 12px rgba(15, 23, 42, 0.6);
  --nav-link-color:       #c7d2fe;
  --nav-separator-color:  #6b7280;

  --shadow-card:      0 18px 45px rgba(15, 23, 42, 0.90);
  --shadow-card-lg:   0 26px 60px rgba(15, 23, 42, 1.00);
  --shadow-modal:     0 24px 70px rgba(0,  0,  0,  0.90);
}

/* ================================================================
   ZÁKLAD
   ================================================================ */

html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    overflow-x: hidden;
}

/* ---------- GLOBAL PAGE / SECTION STYLES ---------- */

.page-root {
  min-height: calc(100vh - 3rem);
  padding: 3rem 2.5rem 2.5rem;
  color: var(--text-primary);
}

.section-header {
  max-width: 900px;
  margin: 0 auto 2rem;
}

.section-kicker {
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.section-header h1 {
  font-size: clamp(2rem, 2.3vw + 1rem, 2.6rem);
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.section-intro {
  max-width: 40rem;
  font-size: 1rem;
  color: var(--text-primary);
}

/* ---------- Buttons ---------- */

a, .btn-link {
	color: var(--link-color);
}

.btn-primary {
    color: #fff;
    background-color: var(--btn-primary-bg);
    border-color: var(--btn-primary-border);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

/* ---------- PAGE TRANSITIONS ---------- */

.page-wrapper {
    animation: page-fade-slide 320ms ease-out;
    will-change: transform, opacity;
}

/* jemný fade + mírné vyjetí nahoru */
@keyframes page-fade-slide {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.99);
        filter: blur(1px);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid var(--color-valid);
}

.invalid {
    outline: 1px solid var(--color-invalid);
}

.validation-message {
    color: var(--color-invalid);
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* ---------- IMAGE MODAL (LIGHTBOX) ---------- */

.image-modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--bg-surface-a85);
  display: flex;
  align-items: center; /* vertikální centrování */
  justify-content: center; /* horizontální centrování */
  z-index: 2000; /* nad vším */
}

.image-modal {
  position: relative;
  max-width: min(1000px, 96vw);
  max-height: 90vh;
  animation: image-modal-zoom 200ms ease-out;
}

  .image-modal img {
    display: block;
    width: auto;
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-modal);
  }

/* zavírací tlačítko */
.image-modal-close {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: none;
  background: var(--bg-surface-a90);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 120ms ease-out, transform 120ms ease-out;
}

  .image-modal-close:hover {
    background: rgba(30, 64, 175, 0.95);
    transform: scale(1.05);
  }

/* jemný efekt při otevření */
@keyframes image-modal-zoom {
  from {
    opacity: 0;
    transform: scale(0.94) translateY(10px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Slidebar analytics status bar */
.sidebar {
  display: flex;
  flex-direction: column;
}

.sidebar-nav {
  flex: 1 1 auto;
}

/* widget návštěv dole v menu */
.sidebar-stats {
  padding: 1rem 1.3rem 1.4rem;
  border-top: 1px solid var(--border-subtle);
  font-size: .8rem;
  color: var(--text-muted);
}

.sidebar-stats-label {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .7rem;
  margin-bottom: .4rem;
  color: #6b7280;
}

.sidebar-stats-main {
  font-size: 1.4rem;
  font-weight: 600;
  color: #e5e7eb;
}

.sidebar-stats-main-caption {
  font-size: .7rem;
  margin-left: .35rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: #9ca3af;
}

.sidebar-stats-rows {
  margin-top: .5rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
}

@media (max-width: 600px) {
  .image-modal {
    max-width: 100vw;
    max-height: 92vh;
  }
}

/* ========== SIDEBAR COLLAPSE ========== */

/* výchozí stav – texty viditelné vždy */
.sidebar .nav-text,
.sidebar .sidebar-title {
  display: inline;
}

/* Desktop: efekt "jen ikony" */
@media (min-width: 769px) {
  .sidebar.collapsed {
    width: 4rem;
  }

  .sidebar.collapsed .nav-text,
  .sidebar.collapsed .sidebar-title {
    display: none;
  }

  .sidebar.collapsed .sidebar-nav {
    align-items: center;
  }
}

/* ---------- LAYOUT (PAGE + SIDEBAR) ---------- */

/* MOBILNÍ REŽIM do 768px: sidebar nahoře */
@media (max-width: 768px) {
  .page {
    display: flex;
    flex-direction: column; /* sidebar nahoru */
    min-height: 100vh;
  }

  .page > .sidebar,
  .page > nav.sidebar {
    width: 100%;
    height: auto;
    position: sticky; /* drží menu nahoře při scrollu */
    top: 0;
    z-index: 50;
    border-right: none;
    border-bottom: 1px solid rgba(148, 163, 184, .3);
  }

  .page > main {
    width: 100%;
    min-width: 0; /* zabrání horizontálnímu overflow */
  }

  /* schovat spodní statistiky v menu na mobilu */
  .sidebar-stats {
    display: none;
  }

  /* volitelné: horizontální „pill“ menu */
  .sidebar-menu {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 0.75rem;
    padding: 0.5rem 1rem 0.75rem;
    scroll-behavior: smooth;
  }

  .sidebar-menu .nav-item {
    white-space: nowrap;
  }
}

/* Desktop od 769px: sidebar vlevo */
@media (min-width: 769px) {
  .page {
    display: flex;
    min-height: 100vh;
  }

  .page > .sidebar,
  .page > nav.sidebar {
    width: 260px;
    flex-shrink: 0;
  }

  .page > main {
    flex: 1 1 auto;
    min-width: 0; /* zabrání horizontálnímu overflow */
  }
}

/* výchozí stav – obě tlačítka schovaná, řešíme v media queries */
.sidebar-toggle-desktop,
.sidebar-toggle-mobile {
  display: none;
}

/* Mobil do 768px: jen hamburger */
@media (max-width: 768px) {
  .sidebar-toggle-mobile {
    display: inline-flex;
  }
}

/* Desktop od 769px: jen desktop toggle (kolaps na ikony) */
@media (min-width: 769px) {
  .sidebar-toggle-desktop {
    display: inline-flex;
  }
}