/* ============================================================
   CSS VARIABLES – tryb jasny
   ============================================================ */
:root {
  /* Tła */
  --bg-page:      #f0f4ff;
  --bg-card:      #ffffff;
  --bg-subtle:    #f8faff;
  --bg-muted:     #eef2fb;

  /* Tekst */
  --text-primary:   #1a1f36;
  --text-secondary: #5c6b8a;
  --text-muted:     #9aa5c0;

  /* Akcent / brand */
  --accent:        #5a6bff;
  --accent-hover:  #3d4fef;
  --accent-light:  #e8eaff;

  /* Stany */
  --success:       #16c784;
  --success-light: #d4f7ec;
  --warning:       #f59e0b;
  --warning-light: #fef3c7;
  --danger:        #ef4444;
  --danger-light:  #fee2e2;

  /* Priorytety */
  --prio-high:   #ef4444;
  --prio-medium: #f59e0b;
  --prio-low:    #16c784;

  /* Ramki i cienie */
  --border:      #dce3f5;
  --shadow-sm:   0 1px 4px rgba(30, 40, 90, .07);
  --shadow-md:   0 4px 16px rgba(30, 40, 90, .12);
  --shadow-lg:   0 12px 32px rgba(30, 40, 90, .16);

  /* Kształty */
  --r-sm:   6px;
  --r-md:   12px;
  --r-lg:   18px;
  --r-xl:   28px;
  --r-full: 9999px;

  /* Odstępy */
  --sp-xs:  .25rem;
  --sp-sm:  .5rem;
  --sp-md:  1rem;
  --sp-lg:  1.5rem;
  --sp-xl:  2rem;
  --sp-2xl: 3rem;

  /* Typografia */
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* Wysokość nagłówka + bezpieczna strefa iOS */
  --header-h:    64px;
  --safe-top:    env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);

  /* Przejścia */
  --tr-fast:   150ms ease;
  --tr-normal: 260ms ease;
  --tr-slow:   420ms ease;
}

/* ── DARK MODE ─────────────────────────────────────────────── */
[data-theme="dark"] {
  --bg-page:    #0d1117;
  --bg-card:    #161b27;
  --bg-subtle:  #1c2333;
  --bg-muted:   #242d42;

  --text-primary:   #e8edf8;
  --text-secondary: #8892aa;
  --text-muted:     #525f78;

  --accent-light: #1f254a;

  --border:     #2a3352;
  --shadow-sm:  0 1px 4px rgba(0,0,0,.35);
  --shadow-md:  0 4px 16px rgba(0,0,0,.45);
  --shadow-lg:  0 12px 32px rgba(0,0,0,.55);

  --success-light: #0d2e22;
  --warning-light: #2e1f00;
  --danger-light:  #2e0a0a;
}

/* ============================================================
   RESET / BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  /* clip: blokuje poziomy scroll bez tworzenia BFC,
     nie przycina tła ani position:fixed – bezpieczne na iOS */
  overflow-x: clip;
  max-width: 100%;   /* HTML nigdy nie przekroczy szerokości widoku */
}

/* Sticky footer – app-wrapper wypełnia całą wysokość okna */
#app-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh; /* dynamiczna wysokość na mobile (uwzględnia pasek przeglądarki) */
  width: 100%;         /* nie szerszy niż body */
  overflow-x: clip;    /* catch-all na wszelkie wewnętrzne przepełnienia */
}

/* WAŻNE: display:flex nadpisuje atrybut hidden – przywróć display:none */
#app-wrapper[hidden] { display: none !important; }

#app-wrapper main { flex: 1; }

body {
  font-family: var(--font);
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;  /* zapobiegaj poziomemu scrollowi */
  max-width: 100%;     /* body nigdy nie szersze niż html */
  /* Transition #1 – płynne przełączanie dark/light */
  transition: background var(--tr-normal), color var(--tr-normal);
}

ul { list-style: none; }
a  { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, select { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ============================================================
   HEADER  ── Flexbox #1
   ============================================================ */
#site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: calc(var(--header-h) + var(--safe-top));
  padding-top: var(--safe-top);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--tr-normal), background var(--tr-normal);
}

/* Ciemny kolor paska systemowego iOS przy dark mode */
[data-theme="dark"] #site-header { background: #161b27; }

#site-header.scrolled { box-shadow: var(--shadow-md); }

.header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--sp-xl);
  height: 100%;

  /* ─── Flexbox #1 ─── */
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--accent);
  letter-spacing: -.02em;
}

.logo-icon {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border-radius: var(--r-md);
  font-size: .95rem;
  /* Transition #2 – obrót ikony przy hover */
  transition: transform var(--tr-normal);
}

.logo:hover .logo-icon { transform: rotate(20deg) scale(1.1); }

/* Nav */
nav ul {
  display: flex;
  gap: var(--sp-xs);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--sp-xs);
  padding: .5rem var(--sp-md);
  border-radius: var(--r-full);
  font-size: .88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background var(--tr-fast), color var(--tr-fast);
}

.nav-link:hover {
  background: var(--accent-light);
  color: var(--accent);
}

.nav-link.active {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
main {
  max-width: 1120px;
  margin: 0 auto;
  padding: calc(var(--header-h) + var(--safe-top) + var(--sp-xl)) var(--sp-xl) calc(var(--sp-2xl) + var(--safe-bottom));
}

.view { animation: fadeUp .3s ease; }
.view[hidden] { display: none !important; }

.view-header { margin-bottom: var(--sp-xl); }
.view-header h1 {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -.03em;
}
.subtitle {
  color: var(--text-secondary);
  margin-top: var(--sp-xs);
  font-size: .95rem;
}

/* ============================================================
   FORMULARZ  ── Flexbox #2
   ============================================================ */
#task-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-xl);
  margin-bottom: var(--sp-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--tr-normal);
}

#task-form:focus-within { box-shadow: var(--shadow-md); }

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-xs);
  flex: 1;
}

.form-group.full-width { flex-basis: 100%; margin-bottom: var(--sp-md); }

.form-group label {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-secondary);
}

/* ─── Flexbox #2 ─── */
.form-row {
  display: flex;
  gap: var(--sp-md);
  align-items: flex-end;
  flex-wrap: wrap;
}

input[type="text"],
input[type="search"],
input[type="email"],
input[type="password"],
select {
  padding: .65rem var(--sp-md);
  border: 2px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-subtle);
  color: var(--text-primary);
  font-size: .93rem;
  width: 100%;
  outline: none;
  transition: border-color var(--tr-fast), box-shadow var(--tr-fast),
              background var(--tr-fast);
}

input[type="text"]:focus,
input[type="search"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(90, 107, 255, .18);
  background: var(--bg-card);
}

input.error { border-color: var(--danger) !important; }

.error-msg {
  display: block;
  min-height: 1.1em;
  font-size: .78rem;
  color: var(--danger);
  font-weight: 500;
}

/* ============================================================
   PRZYCISKI
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-xs);
  padding: .68rem var(--sp-lg);
  border-radius: var(--r-md);
  font-size: .88rem;
  font-weight: 700;
  white-space: nowrap;
  /* Transition #3 – przyciski */
  transition: background var(--tr-fast), transform var(--tr-fast),
              box-shadow var(--tr-fast), opacity var(--tr-fast);
}

.btn-primary  { background: var(--accent); color: #fff; }
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(90,107,255,.35);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: var(--bg-muted);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--border);
  transform: translateY(-1px);
}

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(239,68,68,.35);
}

.btn:disabled { opacity: .55; cursor: not-allowed; transform: none !important; }

/* ============================================================
   TASK CONTROLS
   ============================================================ */
.task-controls {
  display: flex;
  gap: var(--sp-md);
  align-items: center;
  margin-bottom: var(--sp-lg);
  flex-wrap: wrap;
}

.filter-buttons {
  display: flex;
  gap: 2px;
  background: var(--bg-card);
  padding: 3px;
  border-radius: var(--r-full);
  border: 1px solid var(--border);
}

.filter-btn {
  padding: .4rem var(--sp-md);
  border-radius: var(--r-full);
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: background var(--tr-fast), color var(--tr-fast);
}

.filter-btn:hover:not(.active) {
  background: var(--bg-muted);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--accent);
  color: #fff;
}

.sort-search {
  display: flex;
  gap: var(--sp-sm);
  flex: 1;
  min-width: 220px;
}

#search-input { flex: 1; }
#sort-select  { width: auto; min-width: 140px; }

/* ============================================================
   LISTA ZADAŃ  ── Flexbox #3
   ============================================================ */
#task-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.task-item {
  /* ─── Flexbox #3 ─── */
  display: flex;
  align-items: center;
  gap: var(--sp-md);

  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--sp-md) var(--sp-lg);

  /* Animation slideIn */
  animation: slideIn .25s ease;
  transition: border-color var(--tr-fast), box-shadow var(--tr-fast),
              transform var(--tr-fast), opacity var(--tr-normal);
}

.task-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
  transform: translateX(3px);
}

.task-item.done { opacity: .6; }
.task-item.done .task-name {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* Checkbox */
.task-checkbox {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border: 2px solid var(--border);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  color: #fff;
  background: transparent;
  transition: background var(--tr-fast), border-color var(--tr-fast);
}

.task-checkbox:hover            { border-color: var(--accent); }
.task-item.done .task-checkbox  {
  background: var(--success);
  border-color: var(--success);
}

/* Content */
.task-content {
  flex: 1;
  min-width: 0;
}

.task-name {
  font-weight: 600;
  font-size: .95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.task-meta {
  display: flex;
  gap: var(--sp-xs);
  margin-top: 3px;
  flex-wrap: wrap;
  align-items: center;
}

.badge {
  font-size: .7rem;
  padding: 2px 8px;
  border-radius: var(--r-full);
  font-weight: 700;
  letter-spacing: .02em;
}

.badge-high    { background: var(--danger-light);  color: var(--prio-high);   }
.badge-medium  { background: var(--warning-light); color: var(--prio-medium); }
.badge-low     { background: var(--success-light); color: var(--prio-low);    }
.badge-cat     { background: var(--accent-light);  color: var(--accent);      }

.task-date {
  font-size: .7rem;
  color: var(--text-muted);
}

/* Action buttons */
.task-actions {
  display: flex;
  gap: var(--sp-xs);
  flex-shrink: 0;
}

.task-btn {
  width: 30px;
  height: 30px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  color: var(--text-muted);
  transition: background var(--tr-fast), color var(--tr-fast);
}

.task-btn:hover            { background: var(--bg-muted); color: var(--text-primary); }
.task-btn.delete:hover     { background: var(--danger-light); color: var(--danger); }

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--sp-2xl) var(--sp-md);
  color: var(--text-muted);
}

.empty-icon  { font-size: 3rem; display: block; margin-bottom: var(--sp-md); }
.empty-state p { font-size: 1.05rem; font-weight: 600; color: var(--text-secondary); }
.empty-state small { font-size: .82rem; }

/* ============================================================
   STATYSTYKI  ── CSS Grid #1
   ============================================================ */
.stats-grid {
  /* ─── CSS Grid #1 ─── */
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-lg);
  margin-bottom: var(--sp-xl);
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-xl);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--tr-normal), box-shadow var(--tr-normal);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.stat-card--accent { border-color: var(--accent); }
.stat-card--accent .stat-value { color: var(--accent); }

.stat-icon  { font-size: 1.8rem; margin-bottom: var(--sp-sm); }
.stat-value {
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: -.04em;
  line-height: 1;
  margin-bottom: var(--sp-xs);
}
.stat-label { font-size: .8rem; color: var(--text-secondary); font-weight: 600; }

/* Wykresy */
.stats-charts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-xl);
}

.chart-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-xl);
  box-shadow: var(--shadow-sm);
}

.chart-box h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: var(--sp-lg);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.bar-chart { display: flex; flex-direction: column; gap: var(--sp-sm); }

.bar-item  { display: flex; align-items: center; gap: var(--sp-sm); }
.bar-label {
  font-size: .82rem;
  color: var(--text-secondary);
  font-weight: 600;
  min-width: 78px;
}
.bar-track {
  flex: 1;
  height: 10px;
  background: var(--bg-muted);
  border-radius: var(--r-full);
  overflow: hidden;
}
.bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: var(--r-full);
  transition: width .7s cubic-bezier(.4,0,.2,1);
}
.bar-count {
  font-size: .78rem;
  font-weight: 700;
  color: var(--text-muted);
  min-width: 20px;
  text-align: right;
}

/* ============================================================
   USTAWIENIA  ── CSS Grid #2
   ============================================================ */
.settings-grid {
  /* ─── CSS Grid #2 ─── */
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
}

.setting-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--sp-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--tr-normal);
}

.setting-card:hover { box-shadow: var(--shadow-md); }

.setting-card--danger {
  border-color: var(--danger);
  background: var(--danger-light);
}

.setting-info h2 { font-size: .98rem; font-weight: 700; margin-bottom: 4px; }
.setting-info p  { font-size: .82rem; color: var(--text-secondary); }

/* Toggle switch */
.toggle-switch {
  position: relative;
  width: 52px;
  height: 28px;
  flex-shrink: 0;
  cursor: pointer;
}

.toggle-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: var(--border);
  border-radius: var(--r-full);
  transition: background var(--tr-normal);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  left: 4px;
  top: 4px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 4px rgba(0,0,0,.2);
  transition: transform var(--tr-normal);
}

.toggle-switch input:checked + .toggle-slider { background: var(--accent); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(24px); }
.toggle-switch input:focus-visible + .toggle-slider {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-md);
}

.modal[hidden] { display: none !important; }

.modal-overlay {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(10, 15, 35, .55);
  backdrop-filter: blur(3px);
}

.modal-content {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  border-radius: var(--r-xl);
  padding: var(--sp-xl);
  width: 100%;
  max-width: 490px;
  box-shadow: var(--shadow-lg);
  animation: modalPop .2s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-lg);
}

.modal-header h2 { font-size: 1.25rem; font-weight: 800; }

.modal-close {
  width: 30px;
  height: 30px;
  border-radius: var(--r-sm);
  font-size: 1.25rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--tr-fast), color var(--tr-fast);
}

.modal-close:hover { background: var(--bg-muted); color: var(--text-primary); }

.modal-actions {
  display: flex;
  gap: var(--sp-sm);
  justify-content: flex-end;
  margin-top: var(--sp-lg);
}

.confirm-content { max-width: 400px; }
.confirm-title   { font-size: 1.15rem; font-weight: 800; margin-bottom: var(--sp-sm); }
.confirm-message { color: var(--text-secondary); font-size: .92rem; line-height: 1.5; }

/* ============================================================
   TOASTY
   ============================================================ */
#toast-container {
  position: fixed;
  bottom: var(--sp-xl);
  right: var(--sp-xl);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: .75rem var(--sp-lg);
  background: var(--text-primary);
  color: var(--bg-card);
  border-radius: var(--r-md);
  font-size: .88rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  max-width: 340px;
  animation: toastSlide .3s ease;
}

.toast.success { background: var(--success); }
.toast.warning { background: var(--warning); color: #fff; }
.toast.error   { background: var(--danger);  }

.toast.out { animation: toastOut .3s ease forwards; }

/* ============================================================
   FOOTER
   ============================================================ */
footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: var(--sp-lg) var(--sp-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .82rem;
  color: var(--text-muted);
}

.footer-sep {
  margin: 0 var(--sp-xs);
  opacity: .5;
}

/* ============================================================
   ANIMACJE / KEYFRAMES
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0);    }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-14px); }
  to   { opacity: 1; transform: translateX(0);     }
}

@keyframes modalPop {
  from { opacity: 0; transform: scale(.94) translateY(-12px); }
  to   { opacity: 1; transform: scale(1)   translateY(0);     }
}

@keyframes toastSlide {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0);    }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0);    }
  to   { opacity: 0; transform: translateY(8px);  }
}

/* ============================================================
   MEDIA QUERY #1 – Tablet  (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root { --header-h: 56px; }

  .header-inner {
    padding: 0 max(var(--sp-md), env(safe-area-inset-right, 0px));
    padding-left:  max(var(--sp-md), env(safe-area-inset-left,  0px));
    padding-right: max(var(--sp-md), env(safe-area-inset-right, 0px));
  }
  .logo-text { display: none; }

  .nav-link  { padding: .4rem var(--sp-sm); font-size: .82rem; }
  .nav-icon  { display: none; }   /* tablet: ukryj emoji, zostaw tekst */

  main {
    /* Shorthand nadpisuje base shorthand w całości – brak konfliktu */
    padding: calc(var(--header-h) + var(--safe-top) + var(--sp-xl))
             var(--sp-md)
             calc(var(--sp-2xl) + env(safe-area-inset-bottom, 0px));
  }

  .view-header h1 { font-size: 1.5rem; }

  /* Formularz – selecty pełna szerokość */
  .form-row                   { flex-direction: column; align-items: stretch; }
  .form-row .form-group       { width: 100%; flex: none; }
  .form-row select            { width: 100%; box-sizing: border-box; }
  .form-row .btn              { width: 100%; justify-content: center; box-sizing: border-box; }

  .task-controls { flex-direction: column; align-items: stretch; }
  .sort-search   { min-width: unset; width: 100%; }
  #sort-select   { min-width: 0; flex: 1; }    /* flex:1 zamiast width:100% – nie przekracza kontenera */
  #search-input  { min-width: 0; flex: 1; }

  /* Stats: 2 kolumny na tablecie */
  .stats-grid   { grid-template-columns: repeat(2, 1fr); }
  .stats-charts { grid-template-columns: 1fr; }

  /* Settings: 1 kolumna */
  .settings-grid { grid-template-columns: 1fr; }

  .footer-inner {
    flex-direction: column;
    align-items: stretch;   /* p-ki mają pełną szerokość → text-align działa poprawnie */
    justify-content: center;
    gap: 2px;
    text-align: center;
    padding: var(--sp-sm) var(--sp-md) calc(var(--sp-sm) + env(safe-area-inset-bottom, 0px));
    font-size: .76rem;
  }
  .footer-sep   { display: none; }
  .footer-copy  { flex-direction: column; align-items: stretch; width: 100%; }
  .footer-copy p { text-align: center; } /* wyraźne centrowanie każdego paragrafu */
  .footer-copy p:first-child::after { display: none; } /* ukryj separator · */
  /* Niezawodne centrowanie buttonu na iOS Safari */
  .footer-link  { display: block; width: fit-content; margin: 0 auto; }
  .footer-sub   { font-size: .72rem; opacity: .8; text-align: center; }

  /* Przycisk wylogowania – lepiej widoczny */
  .btn-logout {
    width: 38px;
    height: 38px;
    background: var(--danger-light);
    color: var(--danger);
    border-radius: var(--r-md);
    border: 1.5px solid var(--danger);
  }

  /* Auth + user menu tablet */
  .auth-card  { padding: var(--sp-xl) var(--sp-lg); }
  .user-name  { display: none; }
  .user-menu  { margin-left: var(--sp-sm); padding-left: var(--sp-sm); }

  /* Guest banner tablet */
  .guest-banner { padding: .55rem var(--sp-md); gap: var(--sp-xs); }
  body.guest-mode main { padding-top: calc(var(--header-h) + var(--safe-top) + 60px + var(--sp-xl)); }
}

/* ============================================================
   MEDIA QUERY #2 – Mobile  (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {

  /* ── Header: emoji-only nav, kompaktowe ─────────────────── */
  :root { --header-h: 52px; }

  .header-inner { gap: var(--sp-xs); }

  /* Pokaż emoji, ukryj etykiety tekstowe */
  .nav-icon  { display: inline; font-size: 1.25rem; line-height: 1; }
  .nav-label { display: none; }

  /* Nav: przyciski jako kwadratowe ikony */
  .nav-link {
    padding: .45rem .55rem;
    font-size: 1.1rem;
    border-radius: var(--r-sm);
  }

  nav ul { gap: 2px; }

  /* Logo icon trochę mniejszy */
  .logo-icon { width: 30px; height: 30px; font-size: .95rem; }

  /* User menu: mniejszy odstęp, mniejszy przycisk */
  .user-menu { gap: var(--sp-xs); padding-left: var(--sp-xs); margin-left: var(--sp-xs); }
  .user-avatar { width: 28px; height: 28px; font-size: .72rem; }
  .btn-logout  { width: 32px; height: 32px; }

  /* ── Reszta mobile ──────────────────────────────────────── */
  .filter-buttons  { width: 100%; justify-content: stretch; }
  .filter-btn      { flex: 1; text-align: center; }

  .stats-grid      { grid-template-columns: repeat(2, 1fr); gap: var(--sp-md); }
  .stat-value      { font-size: 2rem; }

  .task-item       { padding: var(--sp-sm) var(--sp-md); }
  .task-meta       { display: none; }

  .modal-content   { border-radius: var(--r-lg); }

  #toast-container { left: var(--sp-md); right: var(--sp-md); }

  /* Auth mobile – kompaktowy, żeby guest-btn był widoczny bez scrollowania */
  .auth-screen  { padding: var(--sp-sm) var(--sp-md); align-items: flex-start; padding-top: var(--sp-lg); justify-content: flex-start; }
  .auth-card    { padding: var(--sp-md) var(--sp-md); }
  .auth-logo    { margin-bottom: var(--sp-xs); }
  .auth-subtitle { margin-bottom: var(--sp-md); font-size: .82rem; }
  .auth-tabs    { margin-bottom: var(--sp-md); }
  .auth-divider { margin: var(--sp-sm) 0; }
  .auth-panel .form-group { margin-bottom: 8px; }
  input[type="text"], input[type="email"],
  input[type="password"], input[type="search"], select { padding: .5rem var(--sp-md); }
  .auth-submit  { padding: .65rem; margin-top: 4px; }
  .guest-divider { margin-top: var(--sp-sm); }
  .guest-btn-prominent { padding: .7rem var(--sp-md); font-size: .93rem; margin-top: var(--sp-xs); }

  /* Guest banner mobile */
  .guest-banner-text { font-size: .78rem; min-width: 0; }
  .guest-banner-btn  { white-space: normal; }
  body.guest-mode main { padding-top: calc(var(--header-h) + var(--safe-top) + 80px + var(--sp-xl)); }
}

/* ============================================================
   AUTH SCREEN
   ============================================================ */
.auth-screen {
  min-height: 100vh;
  min-height: 100dvh; /* dynamiczna wysokość – uwzględnia pasek przeglądarki */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  padding: var(--sp-xl);
  background: linear-gradient(135deg, var(--bg-page) 0%, var(--accent-light) 100%);
  animation: fadeUp .4s ease;
}

.auth-screen[hidden] { display: none !important; }

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: var(--sp-2xl) var(--sp-xl);
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
}

.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: var(--sp-sm);
}

.auth-logo .logo-icon {
  width: 40px;
  height: 40px;
  font-size: 1.1rem;
}

.auth-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: .9rem;
  margin-bottom: var(--sp-xl);
}

/* Auth Tabs */
.auth-tabs {
  display: flex;
  background: var(--bg-muted);
  border-radius: var(--r-full);
  padding: 3px;
  margin-bottom: var(--sp-xl);
}

.auth-tab {
  flex: 1;
  padding: .55rem;
  border-radius: var(--r-full);
  font-size: .88rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  transition: background var(--tr-fast), color var(--tr-fast);
}

.auth-tab:hover:not(.active) {
  color: var(--text-primary);
}

.auth-tab.active {
  background: var(--bg-card);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.auth-panel[hidden] { display: none !important; }

/* Social Buttons */
.social-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  width: 100%;
  padding: .72rem var(--sp-md);
  border-radius: var(--r-md);
  font-size: .9rem;
  font-weight: 600;
  border: 2px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  transition: border-color var(--tr-fast), box-shadow var(--tr-fast),
              transform var(--tr-fast), background var(--tr-fast);
}

.social-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.social-icon { flex-shrink: 0; }

.google-btn:hover {
  border-color: #4285F4;
  background: #f8faff;
}

[data-theme="dark"] .google-btn:hover { background: #1a2340; }

/* Divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  margin: var(--sp-lg) 0;
  color: var(--text-muted);
  font-size: .8rem;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* Auth Forms */
.auth-panel .form-group {
  margin-bottom: var(--sp-md);
}

.auth-submit {
  width: 100%;
  justify-content: center;
  margin-top: var(--sp-sm);
  padding: .78rem;
  font-size: .95rem;
}

/* Przyciski pomocnicze (wróć, verify-back) */
.guest-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: var(--sp-lg);
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-xs) var(--sp-sm);
  border-radius: var(--r-md);
  transition: color var(--tr-fast), background var(--tr-fast);
}

.guest-link:hover {
  color: var(--text-secondary);
  background: var(--bg-muted);
}

/* ── Separator „lub" ──────────────────────────────────── */
.guest-divider {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  margin-top: var(--sp-lg);
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  width: 100%;
  max-width: 440px;
}

.guest-divider::before,
.guest-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Przycisk „Kontynuuj bez logowania" – wyraźny ──────── */
.guest-btn-prominent {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-sm);
  width: 100%;
  max-width: 440px;
  margin-top: var(--sp-sm);
  padding: .85rem var(--sp-lg);
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-subtle);
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  cursor: pointer;
  letter-spacing: -.01em;
  transition: border-color var(--tr-normal), background var(--tr-normal),
              color var(--tr-normal), box-shadow var(--tr-normal),
              transform var(--tr-fast);
}

.guest-btn-prominent:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.guest-btn-prominent:active {
  transform: translateY(0);
  box-shadow: none;
}

/* ============================================================
   RESET HASŁA — link i panel
   ============================================================ */
.forgot-link {
  display: block;
  width: 100%;
  margin-top: var(--sp-sm);
  background: none;
  border: none;
  color: var(--accent);
  font-size: .84rem;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  padding: var(--sp-xs) 0;
  transition: opacity var(--tr-fast);
}

.forgot-link:hover { opacity: .7; }

.forgot-icon {
  font-size: 2.6rem;
  display: block;
  text-align: center;
  margin-bottom: var(--sp-md);
  line-height: 1;
}

.forgot-desc {
  color: var(--text-secondary);
  font-size: .9rem;
  text-align: center;
  line-height: 1.55;
  margin-bottom: var(--sp-lg);
}

/* ============================================================
   GUEST BANNER
   ============================================================ */
.guest-banner {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  flex-wrap: wrap;
  padding: .6rem var(--sp-xl);
  background: var(--warning-light);
  border-bottom: 1px solid var(--warning);
  font-size: .84rem;
  color: var(--text-primary);
  /* pozycjonowanie pod fixed headerem – fizyczne właściwości dla max zgodności iOS */
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  width: 100%;
  z-index: 90;
  animation: fadeUp .25s ease;
  /* WAŻNE: overflow:hidden zapobiega rozszerzaniu viewport iOS Safari */
  overflow: hidden;
  max-width: 100%;
  box-sizing: border-box;
}

.guest-banner[hidden] { display: none !important; }

.guest-banner-icon { flex-shrink: 0; font-size: 1rem; }

.guest-banner-text { flex: 1; min-width: 200px; line-height: 1.4; }

.guest-banner-btn {
  padding: .35rem var(--sp-md);
  background: var(--warning);
  color: #fff;
  border-radius: var(--r-md);
  font-size: .8rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity var(--tr-fast), transform var(--tr-fast);
}

.guest-banner-btn:hover { opacity: .88; transform: translateY(-1px); }

.guest-banner-close {
  width: 26px;
  height: 26px;
  border-radius: var(--r-sm);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--text-secondary);
  border: none;
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--tr-fast);
}

.guest-banner-close:hover { background: rgba(0,0,0,.1); }

/* Gdy banner widoczny — przesuń main w dół */
body.guest-mode main {
  padding-top: calc(var(--header-h) + var(--safe-top) + 44px + var(--sp-xl));
}

/* ============================================================
   EKRAN WERYFIKACJI E-MAIL
   ============================================================ */
.verify-card {
  text-align: center;
}

.verify-icon-wrap {
  font-size: 3rem;
  margin-bottom: var(--sp-md);
  line-height: 1;
  display: block;
}

/* Stan "zablokowany" — czerwona ikona kłódki */
.verify-card.blocked .verify-icon-wrap { filter: none; }

.verify-title {
  font-size: 1.45rem;
  font-weight: 800;
  margin-bottom: var(--sp-sm);
  color: var(--text-primary);
  letter-spacing: -.02em;
}

/* Tytuł blokady w kolorze ostrzeżenia */
.verify-card.blocked .verify-title { color: var(--danger); }

.verify-desc {
  color: var(--text-secondary);
  margin-bottom: var(--sp-lg);
  line-height: 1.7;
  font-size: .97rem;
}

.verify-desc strong {
  color: var(--accent);
  word-break: break-all;
  font-weight: 600;
}

/* Lista kroków */
.verify-steps {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
  text-align: left;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--sp-md);
  margin-bottom: var(--sp-md);
}

.verify-step {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  font-size: .92rem;
  color: var(--text-secondary);
}

.verify-step-num {
  min-width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-size: .78rem;
  font-weight: 700;
  flex-shrink: 0;
}

.verify-hint {
  font-size: .84rem;
  color: var(--text-muted);
  margin-bottom: var(--sp-lg);
  line-height: 1.6;
}

.verify-hint strong { color: var(--text-secondary); }

.verify-resend {
  margin-top: var(--sp-sm);
  width: 100%;
}

/* Avatar gościa */
.user-avatar.social-guest {
  background: var(--text-muted);
  font-size: .75rem;
}

/* ============================================================
   USER MENU (header)
   ============================================================ */
.user-menu {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  margin-left: var(--sp-lg);
  padding-left: var(--sp-lg);
  border-left: 1px solid var(--border);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .85rem;
  flex-shrink: 0;
}

.user-avatar.social-google { background: #4285F4; }

.user-name {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-primary);
  max-width: 120px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-logout {
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: background var(--tr-fast), color var(--tr-fast);
}

.btn-logout:hover {
  background: var(--danger-light);
  color: var(--danger);
}

/* ============================================================
   ZGODA RODO – checkbox w formularzu rejestracji
   ============================================================ */
.consent-group {
  margin-top: var(--sp-sm);
}

.consent-label {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-sm);
  cursor: pointer;
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.consent-label input[type="checkbox"] {
  margin-top: 2px;
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
}

.privacy-inline-link {
  background: none;
  border: none;
  color: var(--accent);
  font-size: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: opacity var(--tr-fast);
}

.privacy-inline-link:hover { opacity: .75; }

/* ============================================================
   STOPKA – grupowanie copyright + link
   ============================================================ */
.footer-copy {
  display: flex;
  flex-direction: row;   /* desktop: obok siebie */
  align-items: center;
  gap: 0;
  flex-wrap: wrap;
}

/* Separator · między copyright a linkiem (tylko desktop) */
.footer-copy p:first-child::after {
  content: ' · ';
  margin: 0 var(--sp-xs);
  opacity: .5;
}

/* ============================================================
   STOPKA – link do polityki prywatności
   ============================================================ */
.footer-link {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: .8rem;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--tr-fast);
}

.footer-link:hover { color: var(--accent); }

/* ============================================================
   MODAL – POLITYKA PRYWATNOŚCI
   ============================================================ */
.privacy-modal {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-md);
  background: rgba(0, 0, 0, .55);
  backdrop-filter: blur(4px);
  animation: fadeUp .2s ease;
}

.privacy-modal[hidden] { display: none !important; }

.privacy-modal-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  width: 100%;
  max-width: 640px;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.privacy-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-lg) var(--sp-xl);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.privacy-modal-header h2 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
}

.privacy-modal-body {
  overflow-y: auto;
  padding: var(--sp-xl);
  flex: 1;
  scroll-behavior: smooth;
}

.privacy-modal-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: var(--sp-lg) 0 var(--sp-sm);
}

.privacy-modal-body h3:first-child { margin-top: 0; }

.privacy-modal-body p,
.privacy-modal-body li {
  font-size: .9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: var(--sp-sm);
}

.privacy-modal-body ul {
  padding-left: var(--sp-lg);
  margin-bottom: var(--sp-sm);
}

.privacy-modal-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.privacy-modal-body code {
  background: var(--bg-muted);
  padding: 1px 6px;
  border-radius: var(--r-sm);
  font-size: .82rem;
  color: var(--accent);
}

.privacy-updated {
  font-size: .8rem !important;
  color: var(--text-muted) !important;
  margin-bottom: var(--sp-lg) !important;
}

.privacy-modal-footer {
  padding: var(--sp-md) var(--sp-xl);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  flex-shrink: 0;
}

/* ============================================================
   UTILITY
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}