* { box-sizing: border-box; }

:root{
  --bg1:#f7f7f8;
  --bg2:#eef7ff;
  --text:#1a1a1a;
  --muted:#6b7280;
  --ring:#0ea5e9;
  --accent:#0ea5e9;
  --success:#16a34a;
  --danger:#b91c1c;
  --card:#ffffff;
  --border:#e6e8eb;
  --shadow: 0 8px 24px rgba(2,6,23,.06), 0 2px 8px rgba(2,6,23,.04);
}

html, body { height: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  color: var(--text);
  background:
    radial-gradient(1000px 600px at 80% -10%, #dbeafe 0%, transparent 60%),
    radial-gradient(1200px 700px at -20% 120%, #dcfce7 0%, transparent 60%),
    var(--bg1);
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  font-size: 1.8rem;
  margin: 14px 0 18px;
  line-height: 1.2;
  background: linear-gradient(135deg, #0ea5e9, #16a34a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 { font-size: 1.1rem; margin: 0 0 12px; }

.card {
  background: var(--card);
  padding: 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  transition: transform .12s ease, box-shadow .12s ease;
}
.card:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(2,6,23,.08), 0 3px 10px rgba(2,6,23,.05);
}

.controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  align-items: end;
}

label { display: grid; gap: 6px; font-size: 0.95rem; }

select,
input[type="date"],
input[readonly],
input[type="text"],
input:not([type]) {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d0d7de;
  border-radius: 10px;
  background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}

select:focus,
input:focus {
  outline: none;
  border-color: var(--ring);
  box-shadow: 0 0 0 3px rgba(14,165,233,.2);
}

.duration {
  margin-top: 6px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 8px;
}
.duration label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-right: 12px;
}

.grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 8px;
  position: relative;
}

.slot-btn {
  width: 100%;
  padding: 10px 8px;
  border-radius: 12px;
  border: 1px solid #d0d7de;
  background: linear-gradient(180deg,#fff,#f7fafc);
  cursor: pointer;
  font-weight: 600;
  transition: transform .08s ease, box-shadow .12s ease, border-color .12s ease, background .12s ease, color .12s ease;
}

.slot-btn:hover {
  background: #f0f6ff;
  border-color: #84b6f4;
  box-shadow: 0 6px 16px rgba(2,6,23,.06);
  transform: translateY(-1px);
}

.slot-btn[aria-pressed="true"] {
  background: #0ea5e9;
  color: #fff;
  border-color: #0ea5e9;
  box-shadow: 0 8px 18px rgba(14,165,233,.35);
}

.slot-btn:focus { outline: 2px solid var(--ring); outline-offset: 2px; }

#noSlots { margin-top: 8px; color: var(--muted); }

.form-row { margin: 8px 0; }

button[type="submit"] {
  padding: 12px 16px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, #16a34a, #22c55e);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(34,197,94,.35);
  transition: transform .08s ease, box-shadow .12s ease, filter .12s ease;
}
button[type="submit"]:hover { transform: translateY(-1px); filter: brightness(1.02); }
button[disabled] { background: #9ca3af; cursor: not-allowed; box-shadow: none; }

/* Toast: domyślnie WYŚRODKOWANY (sukces/info) */
#toast {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -46%) scale(.98);
  min-width: 240px;
  max-width: min(90vw, 520px);
  background: #111827;
  color: #fff;
  padding: 14px 16px;
  border-radius: 14px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s ease, transform .25s ease;
  font-size: 1rem;
  text-align: center;
  z-index: 50;
}
#toast.show {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}
#toast.error {
  background: var(--danger);
  top: auto;
  bottom: 16px;
  transform: translateX(-50%) scale(1);
}
/* Toast - sukces (pokazany i nie jest błędem) */
#toast.show:not(.error) {
  background: #16a34a;   /* pełny zielony */
  color: #fff;           /* biały, kontrastowy tekst */
  border: 1px solid #15803d;
}

/* Subtelny loader gdy grid ma aria-busy="true" */
.grid[aria-busy="true"]::after{
  content:"";
  position:absolute; inset:0;
  background: rgba(255,255,255,.7);
  border-radius: 12px;
  backdrop-filter: blur(2px);
}
.grid[aria-busy="true"]::before{
  content:"";
  position:absolute; left:50%; top:50%;
  width:28px; height:28px;
  border-radius:50%;
  border:3px solid #d1d5db;
  border-top-color: var(--accent);
  animation: spin .8s linear infinite;
  transform: translate(-50%, -50%);
}
@keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg);} }

@media (max-width: 640px){
  .controls { grid-template-columns: 1fr; }
}

.reservation-info {
  margin-top: 10px;
  padding: 10px 12px;
  background: #f0fdf4;      /* jasna zieleń */
  border: 1px solid #bbf7d0; /* obramowanie */
  color: #14532d;            /* ciemnozielony tekst */
  border-radius: 10px;
  font-size: 14px;
  line-height: 1.4;
}
.reservation-info ul {
  list-style: none;
  margin: 0;
  padding: 0;           /* usuwa domyślny padding */
}
.reservation-info li {
  margin: 4px 0;
  padding: 6px 8px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.reservation-info button.cancel-btn {
  background: #dc2626;   /* czerwony */
  border: none;
  color: #fff;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: background 0.2s;
}
.reservation-info button.cancel-btn:hover {
  background: #b91c1c;
}