/* ============================================================
   ISS Správa – hlavní styly
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-primary:    #1a6eb5;
    --color-primary-dk: #145a96;
    --color-accent:     #e8f0fb;
    --color-bg:         #f4f6f9;
    --color-sidebar:    #1b2537;
    --color-sidebar-hover: #253248;
    --color-sidebar-active: #1a6eb5;
    --color-text:       #2c3e50;
    --color-text-muted: #7f8c9a;
    --color-white:      #ffffff;
    --color-border:     #dde3ec;
    --color-success:    #27ae60;
    --color-error:      #e74c3c;
    --color-warning:    #f39c12;

    --sidebar-w: 240px;
    --topbar-h:  56px;
    --radius:    8px;
    --shadow:    0 2px 8px rgba(0,0,0,.10);
    --transition: .2s ease;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 14px;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.5;
}

/* ---- Layout ---- */
.layout {
    display: flex;
    min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
    width: var(--sidebar-w);
    min-height: 100vh;
    background: var(--color-sidebar);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 200;
    transition: transform var(--transition);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px;
    height: var(--topbar-h);
    border-bottom: 1px solid rgba(255,255,255,.08);
    flex-shrink: 0;
}
.logo-icon { font-size: 20px; }
.logo-text  { font-size: 16px; font-weight: 700; color: var(--color-white); letter-spacing: .5px; }

.sidebar-nav {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: rgba(255,255,255,.7);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
    border-left: 3px solid transparent;
}
.nav-item:hover {
    background: var(--color-sidebar-hover);
    color: var(--color-white);
}
.nav-item.active {
    background: var(--color-sidebar-hover);
    color: var(--color-white);
    border-left-color: var(--color-primary);
}
.nav-icon  { font-size: 16px; flex-shrink: 0; width: 20px; text-align: center; }
.nav-label { font-size: 13px; }

.nav-group-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: rgba(255,255,255,.35);
    padding: 16px 20px 4px;
}

/* ---- Sidebar submenu ---- */
.nav-group-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 10px 20px;
    background: none;
    border: none;
    border-left: 3px solid transparent;
    color: rgba(255,255,255,.7);
    cursor: pointer;
    font-size: 13px;
    text-align: left;
    transition: background var(--transition), color var(--transition);
}
.nav-group-toggle:hover {
    background: var(--color-sidebar-hover);
    color: var(--color-white);
}
.nav-group.open .nav-group-toggle {
    color: var(--color-white);
    background: var(--color-sidebar-hover);
}
.nav-arrow {
    margin-left: auto;
    font-size: 10px;
    transition: transform var(--transition);
    display: inline-block;
}
.nav-group.open .nav-arrow {
    transform: rotate(90deg);
}
.nav-submenu {
    display: none;
    background: rgba(0,0,0,.15);
}
.nav-group.open .nav-submenu {
    display: block;
}
.nav-subitem {
    display: block;
    padding: 8px 20px 8px 48px;
    color: rgba(255,255,255,.6);
    text-decoration: none;
    font-size: 12px;
    border-left: 3px solid transparent;
    transition: background var(--transition), color var(--transition);
}
.nav-subitem:hover {
    background: var(--color-sidebar-hover);
    color: var(--color-white);
}
.nav-subitem.active {
    color: var(--color-white);
    border-left-color: var(--color-primary);
    background: var(--color-sidebar-hover);
}

/* ---- Sidebar subgroup (vnořené podmenu, např. Platby) ---- */
.nav-subgroup-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 7px 20px 7px 48px;
    background: none;
    border: none;
    border-left: 3px solid transparent;
    color: rgba(255,255,255,.55);
    cursor: pointer;
    font-size: 12px;
    text-align: left;
    transition: background var(--transition), color var(--transition);
}
.nav-subgroup-toggle:hover {
    background: var(--color-sidebar-hover);
    color: var(--color-white);
}
.nav-subgroup.open .nav-subgroup-toggle {
    color: var(--color-white);
    background: rgba(0,0,0,.1);
}
.nav-subgroup-arrow {
    margin-left: auto;
    font-size: 9px;
    transition: transform var(--transition);
    display: inline-block;
}
.nav-subgroup.open .nav-subgroup-arrow { transform: rotate(90deg); }
.nav-subgroup-menu {
    display: none;
    background: rgba(0,0,0,.12);
}
.nav-subgroup.open .nav-subgroup-menu { display: block; }
.nav-subsubitem {
    display: block;
    padding: 6px 20px 6px 64px;
    color: rgba(255,255,255,.45);
    text-decoration: none;
    font-size: 11px;
    border-left: 3px solid transparent;
    transition: background var(--transition), color var(--transition);
}
.nav-subsubitem:hover {
    background: var(--color-sidebar-hover);
    color: var(--color-white);
}
.nav-subsubitem.active {
    color: var(--color-white);
    border-left-color: var(--color-primary);
    background: var(--color-sidebar-hover);
}

/* ---- Tabulka dat ---- */
.data-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius);
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.data-table th {
    background: var(--color-bg);
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--color-text-muted);
    border-bottom: 2px solid var(--color-border);
    white-space: nowrap;
}
.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--color-accent); }
.data-table .text-right { text-align: right; }
.data-table .text-mono  { font-family: monospace; font-size: 12px; }

/* ---- Periode navigátor ---- */
.period-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}
.period-nav .period-label {
    font-size: 15px;
    font-weight: 600;
    min-width: 80px;
    text-align: center;
}
.btn-period {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    width: 32px; height: 32px;
    cursor: pointer;
    font-size: 14px;
    display: flex; align-items: center; justify-content: center;
    transition: background var(--transition);
}
.btn-period:hover { background: var(--color-border); }

/* ---- Spinner ---- */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
    display: inline-block;
    width: 20px; height: 20px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin .7s linear infinite;
    vertical-align: middle;
    flex-shrink: 0;
}

/* ---- Loading overlay ---- */
.table-loading {
    text-align: center;
    padding: 40px;
    color: var(--color-text-muted);
    font-size: 13px;
}
.table-loading .spinner {
    margin-right: 8px;
}

.sidebar-footer {
    padding: 14px 20px;
    border-top: 1px solid rgba(255,255,255,.08);
    display: flex;
    align-items: center;
    gap: 10px;
}
.user-avatar {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px;
    flex-shrink: 0;
}
.user-details { flex: 1; min-width: 0; }
.user-name  { display: block; font-size: 12px; font-weight: 600; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role  { display: block; font-size: 11px; color: rgba(255,255,255,.45); }
.btn-logout {
    color: rgba(255,255,255,.5);
    text-decoration: none;
    font-size: 18px;
    flex-shrink: 0;
    transition: color var(--transition);
}
.btn-logout:hover { color: var(--color-error); }

/* ---- Main wrap ---- */
.main-wrap {
    flex: 1;
    margin-left: var(--sidebar-w);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ---- Topbar ---- */
.topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-h);
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 0 24px;
    z-index: 100;
    box-shadow: var(--shadow);
}
.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
    color: var(--color-text-muted);
    padding: 4px;
    line-height: 1;
}
.page-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text);
    flex: 1;
}
.topbar-right { display: flex; align-items: center; gap: 12px; }
.topbar-user  { font-size: 13px; color: var(--color-text-muted); }

/* ---- Content ---- */
.content {
    flex: 1;
    padding: 24px;
}

/* ---- Cards ---- */
.card {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    padding: 20px 24px;
    margin-bottom: 20px;
}
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
}
.card-title { font-size: 15px; font-weight: 600; color: var(--color-text); }

/* ---- Dashboard grid ---- */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}
.stat-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}
.stat-icon.blue   { background: #dbeafe; color: #1d4ed8; }
.stat-icon.green  { background: #dcfce7; color: #15803d; }
.stat-icon.orange { background: #ffedd5; color: #c2410c; }
.stat-icon.purple { background: #ede9fe; color: #6d28d9; }
.stat-value { font-size: 24px; font-weight: 700; line-height: 1; }
.stat-label { font-size: 12px; color: var(--color-text-muted); margin-top: 3px; }

/* ---- Module tiles ---- */
.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}
.module-tile {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
    padding: 24px 16px;
    text-align: center;
    text-decoration: none;
    color: var(--color-text);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
.module-tile:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,.12);
    border-color: var(--color-primary);
}
.module-tile .tile-icon {
    width: 52px; height: 52px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px;
    margin-bottom: 4px;
}
.module-tile .tile-name  { font-size: 13px; font-weight: 600; }
.module-tile .tile-desc  { font-size: 11px; color: var(--color-text-muted); }
.tile-disabled { opacity: .45; pointer-events: none; cursor: default; }
.tile-modal    { cursor: pointer; }

/* ---- Select pole (field-group) ---- */
.field-group select,
.field-input {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13px;
    outline: none;
    background: #fafbfc;
    transition: border-color .2s, box-shadow .2s;
    appearance: auto;
    font-family: inherit;
}
.field-group select:focus,
.field-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26,110,181,.12);
    background: #fff;
}

/* ---- Filtrační lišta (platby) ---- */
.platby-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
}
.filter-btn {
    padding: 4px 14px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    background: var(--color-white);
    color: var(--color-text-muted);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    font-family: inherit;
}
.filter-btn:hover {
    background: var(--color-accent);
    color: var(--color-text);
    border-color: var(--color-primary);
}
.filter-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

/* ---- Banka statistika (platby souhrn) ---- */
.banka-stat {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 12px;
    box-shadow: var(--shadow);
}
.banka-pct {
    font-weight: 700;
    color: var(--color-text-muted);
    min-width: 36px;
    text-align: right;
}

/* ---- Chart.js wrapper ---- */
.chart-wrap {
    flex: 1;
    min-width: 360px;
    max-width: 680px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 12px 16px;
    box-shadow: var(--shadow);
}
.chart-wrap canvas {
    height: 280px !important;
}
.chart-wrap .chart-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .6px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

/* ---- Typ badge (platby apod.) ---- */
.typ-badge {
    display: inline-block;
    padding: 2px 7px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    white-space: nowrap;
}

/* ---- Hromadné pohledávky – info lišta ---- */
.hromadne-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
    padding: 10px 14px;
    background: var(--color-accent);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13px;
}

/* ---- Modal ---- */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 500;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-overlay.open {
    display: flex;
}
.modal {
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
    width: 100%;
    max-width: 720px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}
.modal-title  { font-size: 15px; font-weight: 600; }
.modal-close  {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--color-text-muted);
    line-height: 1;
    padding: 2px 6px;
    border-radius: 4px;
    transition: background var(--transition);
}
.modal-close:hover { background: var(--color-bg); color: var(--color-text); }
.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}
.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-shrink: 0;
}
.modal-footer-msg { font-size: 12px; flex: 1; }

/* Editor šablony */
.template-vars {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 10px 14px;
    margin-bottom: 14px;
    font-size: 12px;
    color: var(--color-text-muted);
    line-height: 1.8;
}
.template-vars strong { color: var(--color-text); display: block; margin-bottom: 4px; }
.var-tag {
    display: inline-block;
    background: #dbeafe;
    color: #1e40af;
    border-radius: 4px;
    padding: 1px 6px;
    font-family: monospace;
    font-size: 11px;
    margin: 2px;
    cursor: pointer;
    user-select: none;
}
.var-tag:hover { background: #bfdbfe; }
.template-editor {
    width: 100%;
    min-height: 280px;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-family: monospace;
    font-size: 13px;
    line-height: 1.6;
    resize: vertical;
    outline: none;
    transition: border-color .2s;
}
.template-editor:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26,110,181,.12);
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: background var(--transition), opacity var(--transition);
}
.btn-primary   { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dk); }
.btn-secondary { background: var(--color-bg); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: var(--color-border); }

/* ---- Flash zprávy ---- */
.flash {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 13px;
}
.flash-success { background: #dcfce7; color: #166534; border: 1px solid #86efac; }
.flash-error   { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.flash-warning { background: #fef9c3; color: #854d0e; border: 1px solid #fde047; }
.flash-info    { background: #dbeafe; color: #1e40af; border: 1px solid #93c5fd; }

/* ---- Tisk ---- */
@media print {
    .sidebar,
    .topbar,
    .platby-filter,
    .period-nav .btn-period,
    .col-akce,
    .print-btn,
    .btn-akce,
    .flash-area,
    #flashArea {
        display: none !important;
    }
    .main-wrap {
        margin-left: 0 !important;
    }
    body {
        background: #fff !important;
    }
    .card {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
    .data-table-wrap {
        overflow: visible !important;
    }
    #platbySouhrn {
        display: block !important;
    }
    .chart-wrap {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* ---- Responzivní ---- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-wrap {
        margin-left: 0;
    }
    .sidebar-toggle {
        display: block;
    }
}