/* ================================================
   assets/css/admin.css
   ================================================ */

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

:root {
    --bg:           #f0f2f5;
    --sidebar-bg:   #dde1e7;
    --sidebar-w:    240px;
    --primary:      #3b82f6;
    --primary-dark: #2563eb;
    --success:      #22c55e;
    --danger:       #ef4444;
    --warning:      #f59e0b;
    --text:         #1e293b;
    --muted:        #64748b;
    --border:       #e2e8f0;
    --card-bg:      #ffffff;
    --radius:       10px;

    /* Sidebar colour tokens */
    --sb-bg:        #dde1e7;
    --sb-text:      #374151;
    --sb-text-hov:  #111827;
    --sb-hover:     rgba(0,0,0,.08);
    --sb-active:    rgba(59,130,246,.14);
    --sb-active-bd: #3b82f6;
    --sb-section:   #6b7280;
    --sb-border:    #c8cdd5;
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    display: flex;
    min-height: 100vh;
}

/* ─── Sidebar ─────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    background: var(--sidebar-bg);
    color: var(--text);
    padding: 0;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    overflow: hidden;
    border-right: 1px solid var(--sb-border);
    box-shadow: 2px 0 8px rgba(0,0,0,.07);
}

/* Logo — bílý strip */
.sidebar-logo {
    padding: 16px 20px;
    border-bottom: 1px solid var(--sb-border);
    display: flex;
    align-items: center;
    background: #fff;
    min-height: 52px;
}

/* Logo */
.sidebar-logo-wrap {
    padding: 10px 14px;
    border-bottom: 1px solid var(--sb-border);
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}
.sidebar-logo-img {
    max-width: 100%;
    max-height: 40px;
    width: auto;
    height: auto;
    display: block;
}

/* Level + pobočka */
.nav-user-info {
    padding: 7px 12px !important;
    background: var(--sidebar-bg) !important;
    background-color: var(--sidebar-bg) !important;
    border-bottom: 1px solid var(--sb-border) !important;
    margin-bottom: 0 !important;
}
.nav-user-info .user-level {
    display: flex !important;
    gap: 6px !important;
    justify-content: space-between !important;
    align-items: center !important;
    width: 100% !important;
}
.customer-badge {
    display: inline-flex !important;
    align-items: center !important;
    padding: 3px 10px !important;
    border-radius: 10px !important;
    font-size: .72rem !important;
    font-weight: 700 !important;
    letter-spacing: .03em !important;
    background-color: #e0e7ef !important;
    color: #374151 !important;
    border: 1px solid #c8cdd5 !important;
}

/* Search */
.nav-search-wrap {
    display: flex;
    align-items: center;
    gap: 0;
    padding: 8px 10px;
    border-bottom: 1px solid var(--sb-border);
    background: var(--sidebar-bg);
}
#nav-search {
    flex: 1;
    background: rgba(255,255,255,.6);
    border: 1px solid var(--sb-border);
    border-radius: 6px 0 0 6px;
    padding: 6px 10px;
    font-size: .82rem;
    color: var(--text);
    outline: none;
    font-family: inherit;
}
#nav-search::placeholder { color: #9ca3af; }
#nav-search:focus { background: #fff; border-color: #93c5fd; }
.nav-search-clear {
    background: rgba(255,255,255,.6);
    border: 1px solid var(--sb-border);
    border-left: none;
    border-radius: 0 6px 6px 0;
    padding: 6px 8px;
    cursor: pointer;
    color: #9ca3af;
    font-size: .8rem;
    line-height: 1;
    display: none;
}
.nav-search-clear:hover { color: var(--text); background: #fff; }

/* Filter results */
#nav-filter-results a {
    display: flex;
    align-items: center;
    padding: 7px 14px;
    font-size: .85rem;
    color: #374151;
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: background .12s;
}
#nav-filter-results a:hover {
    background: var(--sb-hover);
    border-left-color: #9ca3af;
}

/* No results */
#nav-filter-empty {
    display: none;
    padding: 10px 14px;
    font-size: .82rem;
    color: #9ca3af;
}

/* Nav scroll area */
.sidebar nav {
    display: flex;
    flex-direction: column;
    padding: 4px 0 8px;
    overflow-y: auto;
    flex: 1;
}
.sidebar nav::-webkit-scrollbar { width: 4px; }
.sidebar nav::-webkit-scrollbar-track { background: transparent; }
.sidebar nav::-webkit-scrollbar-thumb { background: #b0b8c4; border-radius: 2px; }

/* Divider */
.nav-divider {
    border: none;
    border-top: 1px solid var(--sb-border);
    margin: 4px 0;
}

/* ── Group toggle (sekce = Zákazníci, Kalendář...) ── */
.nav-group-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    cursor: pointer;
    user-select: none;
    font-size: .82rem;
    font-weight: 700;
    color: #374151;
    border-left: 3px solid transparent;
    transition: background .12s, color .12s;
    line-height: 1.3;
}
.nav-group-toggle:hover {
    background: var(--sb-hover);
    color: #111827;
}
.nav-group-toggle .arrow {
    margin-left: auto;
    font-size: .65rem;
    opacity: .4;
    transition: transform .2s;
    flex-shrink: 0;
}
.nav-group-toggle.open .arrow {
    transform: rotate(90deg);
    opacity: .6;
}

/* Top-level group toggle = sekce (Zákazníci, Paragony...) */
.nav-toggle-uppercase {
    padding: 10px 14px 6px !important;
    font-size: .7rem !important;
    font-weight: 700 !important;
    letter-spacing: .08em !important;
    text-transform: uppercase !important;
    color: #6b7280 !important;
    cursor: pointer !important;
    pointer-events: auto !important;
    border-left-color: transparent !important;
    background: none !important;
}
.nav-toggle-uppercase:hover { background: rgba(0,0,0,.04) !important; color: #374151 !important; }
.nav-toggle-uppercase .arrow { opacity: .35; font-size: .6rem; pointer-events: none; }
.nav-toggle-uppercase.open .arrow { opacity: .55; }

/* ── Nav links (skutečné položky) ── */
.nav-link {
    display: flex !important;
    align-items: center;
    gap: 7px;
    padding: 7px 14px !important;
    color: #374151 !important;
    text-decoration: none;
    font-size: .875rem !important;
    font-weight: 500;
    border-left: 3px solid transparent;
    transition: background .12s, color .12s, border-color .12s;
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.nav-link:hover {
    background: rgba(0,0,0,.06) !important;
    color: #111827 !important;
    border-left-color: #9ca3af;
}
.nav-link.active {
    background: rgba(59,130,246,.12) !important;
    color: #1d4ed8 !important;
    border-left-color: #3b82f6;
    font-weight: 600;
}

/* Hloubka 0 = přímé pod skupinou */
.nav-group-items > .nav-link { padding-left: 20px !important; font-size: .875rem !important; }

/* Hloubka 1 = vnořené skupiny → jejich linky */
.nav-group-items .nav-group-items > .nav-link {
    padding-left: 32px !important;
    font-size: .845rem !important;
    color: #4b5563 !important;
}

/* Hloubka 2 = třetí úroveň */
.nav-group-items .nav-group-items .nav-group-items > .nav-link {
    padding-left: 44px !important;
    font-size: .82rem !important;
    color: #6b7280 !important;
}

/* Sub-group toggle (Komunikace, Finance...) */
.nav-group-items > .nav-group > .nav-group-toggle {
    padding-left: 20px;
    font-size: .845rem;
    font-weight: 600;
    color: #4b5563;
    background: rgba(0,0,0,.025);
}
.nav-group-items > .nav-group > .nav-group-toggle:hover {
    background: rgba(0,0,0,.06);
    color: #111827;
}

/* Sub-sub-group toggle */
.nav-group-items .nav-group-items > .nav-group > .nav-group-toggle {
    padding-left: 32px;
    font-size: .82rem;
    font-weight: 500;
    color: #6b7280;
    background: rgba(0,0,0,.03);
}

/* Logout at bottom */
.sidebar-footer {
    border-top: 1px solid var(--sb-border);
    padding: 4px 0 8px;
}

/* ─── Main content ────────────────────────────── */
.admin-main {
    margin-left: var(--sidebar-w);
    flex: 1;
    padding: 0;
    display: flex;
    flex-direction: column;
}
.admin-header {
    background: #fff;
    padding: 20px 32px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.admin-header h1 { font-size: 1.4rem; }
.admin-user { color: var(--muted); font-size: .9rem; }

/* Flash messages */
.flash {
    margin: 16px 32px 0;
    padding: 12px 18px;
    border-radius: var(--radius);
    font-weight: 500;
}
.flash-success { background: #dcfce7; color: #15803d; }
.flash-error   { background: #fee2e2; color: #b91c1c; }
.flash-warning { background: #fef9c3; color: #854d0e; }

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px 28px;
    margin: 24px 32px 0;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.card h2 { font-size: 1.05rem; margin-bottom: 16px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin: 24px 32px 0;
}
.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.stat-card.highlight { border-left: 4px solid var(--primary); }
.stat-value { font-size: 2rem; font-weight: 700; }
.stat-label { color: var(--muted); font-size: .85rem; margin-top: 4px; }

/* Level bars */
.level-bars { display: flex; flex-direction: column; gap: 10px; }
.level-bar-row { display: flex; align-items: center; gap: 12px; }
.level-bar-label { width: 120px; font-size: .9rem; }
.level-bar-track { flex: 1; height: 14px; background: var(--border); border-radius: 7px; overflow: hidden; }
.level-bar-fill  { height: 100%; border-radius: 7px; transition: width .3s; }
.level-bar-count { width: 50px; text-align: right; font-weight: 600; font-size: .9rem; }

/* Search form */
.search-form { display: flex; gap: 10px; margin-bottom: 20px; }
.search-form input {
    flex: 1; padding: 10px 14px;
    border: 1px solid var(--border); border-radius: 8px;
    font-size: 1rem;
}
.search-form button, .btn-primary {
    padding: 10px 20px;
    background: var(--primary); color: #fff;
    border: none; border-radius: 8px;
    cursor: pointer; font-size: .95rem; font-weight: 600;
}
.search-form button:hover, .btn-primary:hover { background: var(--primary-dark); }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.data-table th { text-align: left; padding: 10px 12px; border-bottom: 2px solid var(--border); color: var(--muted); font-weight: 600; }
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.data-table tr:hover td { background: #f8fafc; }
.no-results { color: var(--muted); padding: 16px 0; }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: .78rem; font-weight: 600; color: #fff; }

/* Small buttons */
.btn-sm { padding: 5px 12px; border-radius: 6px; font-size: .82rem; text-decoration: none; display: inline-block; background: var(--border); color: var(--text); margin-right: 4px; }
.btn-sm.btn-primary { background: var(--primary); color: #fff; }
.btn-sm.btn-warning { background: var(--warning); color: #fff; }
.btn-sm:hover { opacity: .85; }

/* Points form */
.points-form { max-width: 480px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; }
.form-group input[type="number"], .form-group input[type="text"] {
    width: 100%; padding: 10px 14px;
    border: 1px solid var(--border); border-radius: 8px;
    font-size: 1rem;
}
.form-group small { color: var(--muted); font-size: .83rem; display: block; margin-top: 4px; }
.btn-large { padding: 13px 32px; font-size: 1.05rem; }

/* Customer info box */
.customer-info-box {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 18px;
    margin-bottom: 24px;
    line-height: 2;
}

/* Result card */
.result-card dl { display: grid; grid-template-columns: auto 1fr; gap: 8px 20px; }
.result-card dt { color: var(--muted); font-size: .9rem; }
.result-card dd { font-weight: 600; }

/* Skrýt "Nic nenalezeno" — výchozí stav, JS ho zobrazí přes .show() */
#nav-filter-empty { display: none; }

/* Override PHP inline <style> pro .customer-badge (menu-icon zelená) */
.nav-user-info .user-level .customer-badge,
.nav-user-info .customer-badge {
    background-color: #e0e7ef !important;
    color: #374151 !important;
    border: 1px solid #c8cdd5 !important;
}
/* Override PHP .sidebar-container background/color */
.sidebar-container {
    background: var(--sidebar-bg) !important;
    color: var(--text) !important;
}

/* KRITICKÉ: všechny toggle musí přijímat kliky */
.nav-group-toggle {
    cursor: pointer !important;
    pointer-events: auto !important;
}
.nav-group-toggle > span {
    pointer-events: none;
}