/* --- Globální nastavení a barvy --- */
:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text-main: #0f172a;
  --muted: #64748b;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --danger: #ef4444;
  --ok: #10b981;
  --border: #e2e8f0;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image: radial-gradient(at 0% 0%, rgba(14, 165, 233, 0.05) 0px, transparent 50%),
                    radial-gradient(at 100% 0%, rgba(99, 102, 241, 0.05) 0px, transparent 50%);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 20px;
}

/* --- Kontejnery --- */
.container {
  max-width: 1200px; /* ROZŠÍŘENO Z 900px */
  width: 100%;
  margin: 40px auto;
}

.card {
  background: var(--card);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 32px;
  border: 1px solid var(--border);
}

/* --- Navigace a Hlavička (NOVÉ) --- */
nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap; /* Pokud se nevejde, skočí na další řádek místo deformace */
}

nav .btn {
  white-space: nowrap; /* ZABRÁNÍ ZALOMENÍ TEXTU UVNITŘ TLAČÍTKA */
  flex-shrink: 0;
}

/* --- Typografie --- */
h1, h2 { 
  margin: 0 0 24px 0; 
  font-size: 1.5rem; 
  font-weight: 800;
  letter-spacing: -0.025em;
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
}

.muted { color: var(--muted); font-size: 0.875rem; }
.name { font-weight: 600; color: var(--text-main); }

/* --- Tlačítka --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border);
  background: white;
  color: var(--text-main);
  text-decoration: none;
}

.btn:hover {
  background: #f1f5f9;
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-primary {
  background: var(--accent);
  color: white;
  border: none;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-important {
  background: var(--danger);
  color: white;
  border: none;
}

.btn-ghost {
  border: none;
  background: transparent;
  color: var(--muted);
}


/* --- Login  --- */
.login-body {
    background-color: #f8fafc;
    background-image:  linear-gradient(#e2e8f0 1px, transparent 1px), linear-gradient(90deg, #e2e8f0 1px, transparent 1px);
    background-size: 30px 30px;
    align-items: center;
    justify-content: center;
    display: flex;
    height: 100vh;
}

.login-card h2 i {
    color: var(--accent);
    margin-right: 10px;
}


/* --- Formuláře a vstupy --- */
.calc-bar, .toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  padding: 16px;
  background: #f1f5f9;
  border-radius: 12px;
  align-items: center;
}

input[type="text"], 
input[type="password"], 
input[type="number"] {
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 1rem;
  width: 100%;
  transition: border-color 0.2s;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.2);
}

/* --- Tabulky --- */
.table-wrap {
  overflow-x: auto; /* Přidáno pro lepší chování na malých displejích */
  border-radius: 12px;
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  background: #f8fafc;
  padding: 12px 16px;
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
}

td {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9375rem;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }

.right { text-align: right; font-variant-numeric: tabular-nums; }
.amount-val { font-weight: 700; color: var(--accent); font-size: 1.1rem; }

/* --- Souhrny (Sum) --- */
.sum {
  margin-top: 24px;
  padding: 20px;
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #f1f5f9;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.sum.warn {
  background-color: #fef2f2;
  border-color: #fee2e2;
  box-shadow: 0 0 15px rgba(239, 68, 68, 0.1);
}

.sum.warn span { color: #991b1b; }
.sum.warn .value { 
  color: #ffffff; 
  background: var(--danger); 
  padding: 4px 12px; 
  border-radius: 8px;
}

.sum.ok {
  background-color: #f0fdf4;
  border-color: #dcfce7;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.1);
}

.sum.ok span { color: #166534; }
.sum.ok .value { 
  color: #ffffff; 
  background: var(--ok); 
  padding: 4px 12px; 
  border-radius: 8px;
}

.sum .value { 
  font-size: 1.25rem; 
  font-weight: 800; 
  font-variant-numeric: tabular-nums;
}


/* --- Responzivita --- */
@media (max-width: 992px) {
    /* Upraveno pro střední obrazovky, aby se hlavička nesrazila */
    header > div {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    nav {
        justify-content: center;
    }
}

@media (max-width: 640px) {
  body { padding: 12px; }
  .calc-bar, .toolbar { flex-direction: column; align-items: stretch; }
  .card { padding: 20px; }
  .container { margin: 20px auto; }
}

/* --- PATIČKA --- */
.main-footer {
    text-align: center;
    padding: 30px 0;
    color: #888;
    font-size: 12px;
}

.main-footer p {
    margin: 0;
    border-top: 1px solid #eee;
    padding-top: 15px;
    display: inline-block;
    min-width: 300px;
}


/* Úprava patičky v login kontejneru */
.login-container .main-footer {
    margin-top: 30px;
    padding: 0;
}

.login-container .main-footer p {
    border-top: 1px solid #eee;
    padding-top: 15px;
    min-width: 100%;
}