:root { 
    --primary: #f9d423; 
    --bg: #f8fafc; 
    --text: #1e293b; 
    --border: #e2e8f0; 
    --success: #22c55e; 
    --danger: #ef4444; 
    --info: #3b82f6; 
    --warning: #f59e0b; 
    --muted: #94a3b8; 
}

body { 
    margin: 0; 
    font-family: 'Inter', sans-serif; 
    background: var(--bg); 
    color: var(--text); 
    padding-bottom: 40px;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* ==========================================================================
   NOTIFIKÁCIE (Dashboard)
   ========================================================================== */
.notification-area { padding: 20px 40px 0 40px; max-height: 200px; overflow-y: auto; }
.notif-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 10px; }
.notif-card { display: flex; align-items: center; gap: 12px; padding: 10px 15px; border-radius: 10px; border-left: 4px solid #ccc; background: #fff; box-shadow: 0 2px 5px rgba(0,0,0,0.05); font-weight: 600; font-size: 13px; transition: background-color 0.4s ease; }
.notif-label { font-size: 9px; padding: 2px 5px; border-radius: 4px; background: #333; color: #fff; min-width: 45px; text-align: center; }
.notif-time { font-weight: 800; border-right: 1px solid #ddd; padding-right: 10px; }
.notif-green { border-left-color: var(--success); background: #f0fdf4; }
.notif-blue { border-left-color: var(--info); background: #eff6ff; }
.notif-red { border-left-color: var(--danger); background: #fef2f2; }

/* ==========================================================================
   GRID A KARTY (Hlavný prehľad)
   ========================================================================== */
.topbar { padding: 20px 40px; display: flex; gap: 10px; align-items: center; background: #fff; border-bottom: 1px solid var(--border); margin-top: 15px; transition: background-color 0.4s ease, border-color 0.4s ease; }

.grid { padding: 20px 40px; display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 25px; }

.card { background: #fff; border-radius: 18px; border: 1px solid var(--border); overflow: hidden; transition: 0.3s; display: flex; flex-direction: column; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); }
.card.is-submitted { border: 2px solid var(--success); background: #f0fdf4; }

.card-header { padding: 20px; display: flex; justify-content: space-between; align-items: flex-start; }
.card-header h3 a { color: var(--text); text-decoration: none; transition: 0.2s; font-size: 15px; font-weight: 800; }

.price-display { background: #0f172a; color: #fff; padding: 10px; border-radius: 12px; font-weight: 800; font-size: 14px; text-align: center; margin-bottom: 15px; margin-left: 20px; margin-right: 20px;}

.upload-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 0 20px 20px 20px; }
.btn-up { border: none; padding: 10px; border-radius: 10px; font-weight: bold; font-size: 11px; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 6px; transition: 0.2s; }
.btn-selection { background: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
.btn-final { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }

.stats-bar { display: flex; justify-content: space-between; padding: 12px 15px; font-size: 11px; font-weight: 800; color: #64748b; background: #f8fafc; border-top: 1px solid var(--border); transition: background-color 0.4s ease; }
.stats-bar div { display: flex; align-items: center; gap: 6px; }

.preview { display: flex; height: 90px; gap: 2px; background: #f1f5f9; cursor: pointer; margin-top: auto; border-top: 1px solid var(--border); }
.preview div { flex: 1; overflow: hidden; }
.preview img { width: 100%; height: 100%; object-fit: cover; opacity: 0.8; transition: 0.3s; }

/* ==========================================================================
   SYSTÉMOVÉ PRVKY (Loading, Toast, Modals)
   ========================================================================== */
#loadingOverlay { display: none; position: fixed; inset: 0; background: rgba(255,255,255,0.9); z-index: 4000; flex-direction: column; align-items: center; justify-content: center; }
.spinner { border: 4px solid #f3f3f3; border-top: 4px solid var(--primary); border-radius: 50%; width: 40px; height: 40px; animation: spin 1s linear infinite; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* TOAST (Notifikácia dole) */
#toast { 
    position: fixed; bottom: 40px; left: 50%; transform: translateX(-50%) translateY(150px); 
    background: #ffffff; color: var(--text); padding: 14px 28px; border-radius: 50px; 
    box-shadow: 0 15px 35px rgba(0,0,0,0.15); display: flex; align-items: center; gap: 12px; 
    font-weight: 800; font-size: 14px; z-index: 10000; transition: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275); 
    opacity: 0; border: 1px solid var(--border); 
}
#toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }
#toast i { color: var(--success); font-size: 20px; }

/* MODÁLNE OKNO (Základné) */
#modalOverlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); backdrop-filter: blur(4px); display: none; align-items: center; justify-content: center; z-index: 5000; }
.modal-box { background: #fff; padding: 30px; border-radius: 20px; width: 400px; box-shadow: 0 20px 40px rgba(0,0,0,0.2); animation: modalIn 0.3s ease-out; }
@keyframes modalIn { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal-box h2 { margin: 0 0 15px 0; font-size: 18px; color: var(--text); display: flex; align-items: center; gap: 10px; }
.modal-box input { width: 100%; padding: 12px; border: 2px solid var(--border); border-radius: 10px; font-size: 16px; box-sizing: border-box; outline: none; transition: 0.2s; }
.modal-box input:focus { border-color: var(--primary); }
.modal-btn { transition: 0.2s; }
.modal-btn:hover { opacity: 0.9; transform: scale(1.02); }

/* CUSTOM MODAL (Pokročilé) */
.custom-modal { position: fixed; inset: 0; background: rgba(15, 23, 42, 0.85); z-index: 10000; display: none; align-items: center; justify-content: center; backdrop-filter: blur(8px); }
.custom-modal .modal-content { background: #ffffff; padding: 40px; border-radius: 24px; text-align: center; max-width: 400px; width: 90%; box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); animation: modalPopIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes modalPopIn { from { transform: scale(0.9); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.custom-modal i { font-size: 40px; width: 80px; height: 80px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; margin-bottom: 20px; }
.custom-modal h3 { margin: 0 0 10px 0; font-size: 22px; font-weight: 800; color: var(--text); }
.custom-modal p { color: var(--muted); font-size: 14px; line-height: 1.6; margin-bottom: 30px; }
.custom-modal .modal-actions { display: flex; gap: 12px; }
.custom-modal .modal-actions .btn { flex: 1; padding: 14px; font-size: 14px; border-radius: 14px; }
.custom-modal .btn-cancel { background: #f1f5f9; color: var(--muted); }
.custom-modal .btn-cancel:hover { background: #e2e8f0; color: var(--text); }

/* ==========================================================================
   ALBUM SETTINGS & EDITOR
   ========================================================================== */
.wrapper { max-width: 1450px; margin: 0 auto; }
.header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; background: #fff; padding: 30px; border-radius: 24px; box-shadow: 0 10px 30px rgba(0,0,0,0.04); }
.client-link-box { display: flex; align-items: center; gap: 12px; background: #f8fafc; padding: 12px 20px; border-radius: 15px; border: 1px solid #e2e8f0; margin-top: 15px; }
.client-link-box input { border: none; background: transparent; font-size: 13px; color: var(--muted); width: 320px; font-weight: 600; outline: none; }

.grid-main { display: grid; grid-template-columns: 2.2fr 1fr; gap: 30px; }
.card h3 { margin-top: 0; margin-bottom: 25px; display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 20px; letter-spacing: -0.5px; }

/* NAVIGÁCIA (TABS) */
.tab-nav { display: flex; gap: 10px; margin-bottom: 30px; background: #fff; padding: 10px; border-radius: 20px; border: 1px solid #e2e8f0; width: fit-content; }
.tab-btn { padding: 12px 24px; border-radius: 15px; cursor: pointer; font-weight: 700; font-size: 14px; transition: 0.3s; border: none; background: transparent; color: var(--muted); }
.tab-btn:hover { background: #f8fafc; color: var(--text); }
.tab-btn.active { background: var(--text); color: #fff; }

.tab-content { display: none; animation: fadeIn 0.4s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* FORMULÁRE */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-group label { display: block; font-size: 11px; font-weight: 800; margin-bottom: 8px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.5px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 14px; border: 1px solid #e2e8f0; border-radius: 14px; font-family: inherit; font-size: 14px; transition: 0.3s; box-sizing: border-box; }
.form-group input:focus { border-color: var(--info); box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1); }

/* TLAČIDLÁ */
.btn { padding: 14px 28px; border-radius: 16px; border: none; font-weight: 800; cursor: pointer; transition: 0.3s; display: inline-flex; align-items: center; justify-content: center; gap: 10px; font-size: 14px; text-decoration: none; }
.btn-save { background: var(--success); color: #fff; width: 100%; box-shadow: 0 8px 20px rgba(34, 197, 94, 0.2); }
.btn-save:hover { transform: translateY(-2px); box-shadow: 0 12px 25px rgba(34, 197, 94, 0.3); }
.action-icon { color: #94a3b8; font-size: 18px; cursor: pointer; transition: 0.2s; }
.action-icon:hover { color: var(--primary); transform: scale(1.1); }

/* UPLOAD ZÓNY */
.upload-zone-container { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 30px; }
.upload-box { border: 2px dashed #cbd5e1; background: #f8fafc; border-radius: 20px; padding: 30px 20px; text-align: center; cursor: pointer; transition: 0.3s; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; }
.upload-box:hover { border-color: var(--info); background: #eff6ff; transform: translateY(-3px); box-shadow: 0 10px 20px rgba(59, 130, 246, 0.1); }
.upload-box.final { border-color: #bbf7d0; background: #f0fdf4; }
.upload-box.final:hover { border-color: var(--success); background: #dcfce7; box-shadow: 0 10px 20px rgba(34, 197, 94, 0.1); }
.upload-box i { font-size: 32px; color: #94a3b8; transition: 0.3s; }
.upload-box:hover i { color: var(--info); transform: translateY(-5px) scale(1.1); }
.upload-box.final:hover i { color: var(--success); transform: translateY(-5px) scale(1.1); }
.upload-box span { font-weight: 800; font-size: 15px; color: var(--text); }
.upload-box small { font-size: 12px; color: var(--muted); font-weight: 600; }

.manage-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 20px; }
.manage-item { position: relative; aspect-ratio: 1; border-radius: 16px; overflow: hidden; background: #f8fafc; border: 1px solid #e2e8f0; box-shadow: 0 4px 6px rgba(0,0,0,0.02); transition: 0.3s; }
.manage-item img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
.manage-overlay { position: absolute; inset: 0; background: rgba(15, 23, 42, 0.6); display: flex; align-items: center; justify-content: center; opacity: 0; transition: 0.3s; backdrop-filter: blur(2px); }
.manage-item:hover { transform: translateY(-5px); box-shadow: 0 12px 25px rgba(0,0,0,0.1); border-color: transparent; }
.manage-item:hover img { transform: scale(1.08); }
.manage-item:hover .manage-overlay { opacity: 1; }
.btn-del-modern { background: #ef4444; color: white; border: none; padding: 10px 18px; border-radius: 12px; font-weight: 800; font-size: 13px; cursor: pointer; display: flex; align-items: center; gap: 8px; transform: translateY(15px); transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4); }
.manage-item:hover .btn-del-modern { transform: translateY(0); }
.btn-del-modern:hover { background: #dc2626; transform: scale(1.05) !important; }

/* VÝBER KLIENTA */
.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 25px; }
.photo-card { border-radius: 22px; overflow: hidden; border: 1px solid #e2e8f0; background: #fff; position: relative; transition: 0.3s; }
.photo-card:hover { transform: translateY(-5px); box-shadow: 0 10px 25px rgba(0,0,0,0.05); }
.photo-card img { width: 100%; aspect-ratio: 1; object-fit: cover; border-bottom: 1px solid #f1f5f9; }
.photo-info { padding: 12px; }
.btn-x { position: absolute; top: 12px; left: 12px; background: var(--danger); color: #fff; border: none; width: 30px; height: 30px; border-radius: 8px; cursor: pointer; z-index: 5; box-shadow: 0 5px 15px rgba(0,0,0,0.2); }

/* ==========================================================================
   PRAVÝ RIADIACI PANEL (Control Center)
   ========================================================================== */
.sticky-panel { position: sticky; top: 20px; border: none; box-shadow: 0 15px 35px rgba(0,0,0,0.08); padding: 25px; background: #fff; border-radius: 20px; transition: background-color 0.4s ease; }

.btn-save-pulse { background: var(--success); color: #fff; width: 100%; font-size: 14px; padding: 16px; border-radius: 14px; box-shadow: 0 8px 20px rgba(34, 197, 94, 0.3); animation: pulseGreen 2s infinite; font-weight: 800; border: none; cursor: pointer; }
.btn-save-pulse:hover { filter: brightness(0.95); transform: translateY(-2px); animation: none; box-shadow: 0 12px 25px rgba(34, 197, 94, 0.4); }
@keyframes pulseGreen { 
    0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); } 
    70% { box-shadow: 0 0 0 10px rgba(34, 197, 94, 0); } 
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); } 
}

.panel-title { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 15px; font-weight: 800; }

.status-toggle { display: block; margin-bottom: 12px; cursor: pointer; }
.status-toggle input { display: none; }
.toggle-content { display: flex; align-items: center; gap: 12px; padding: 14px 18px; border: 2px solid var(--border); border-radius: 12px; transition: 0.3s; color: var(--muted); font-weight: 800; font-size: 13px; background: #fff; }
.toggle-content i { font-size: 18px; transition: 0.3s; }
.status-toggle:hover .toggle-content { border-color: #cbd5e1; background: #f8fafc; }

.toggle-voucher input:checked + .toggle-content { border-color: var(--info); background: #ebf5ff; color: var(--info); box-shadow: 0 4px 15px rgba(59, 130, 246, 0.15); }
.toggle-settled input:checked + .toggle-content { border-color: var(--success); background: #f0fdf4; color: var(--success); box-shadow: 0 4px 15px rgba(34, 197, 94, 0.15); }
.status-toggle input:checked + .toggle-content i { transform: scale(1.1); }

.price-input-group label { font-size: 11px; margin-bottom: 8px; margin-top: 10px; }
.price-input-group input { font-size: 18px !important; font-weight: 800 !important; color: var(--text) !important; padding: 14px !important; text-align: center; background: #f8fafc !important; }

/* ==========================================================================
   TMAVÝ REŽIM (Dark Mode)
   ========================================================================== */
body.dark-mode {
    --bg: #0f172a;
    --text: #f8fafc;
    --border: #334155;
    --muted: #94a3b8;
}

body.dark-mode .card, 
body.dark-mode .header, 
body.dark-mode .topbar, 
body.dark-mode .tab-nav, 
body.dark-mode .notif-card, 
body.dark-mode .sticky-panel,
body.dark-mode .modal-box {
    background: #1e293b;
    border-color: var(--border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

body.dark-mode .form-group input, 
body.dark-mode .form-group select, 
body.dark-mode .form-group textarea,
body.dark-mode #f_gallery_text {
    background: #0f172a;
    color: var(--text);
    border-color: var(--border);
}

body.dark-mode .client-link-box { background: #0f172a; border-color: var(--border); }
body.dark-mode .upload-box { background: #0f172a; border-color: var(--border); }
body.dark-mode .upload-box:hover { background: #1e293b; border-color: var(--info); }
body.dark-mode .manage-item { background: #0f172a; border-color: var(--border); }
body.dark-mode .photo-card { background: #1e293b; border-color: var(--border); }
body.dark-mode .stats-bar { background: #0f172a; border-color: var(--border); }

/* Vyskakovacie okná v tmavom režime */
body.dark-mode .custom-modal .modal-content { background: #1e293b; color: var(--text); }
body.dark-mode .custom-modal i[style*="background: #fef2f2"] { background: rgba(239, 68, 68, 0.1) !important; }
body.dark-mode .custom-modal i[style*="background: #fffbeb"] { background: rgba(245, 158, 11, 0.1) !important; }

body.dark-mode .btn-cancel { background: #0f172a; color: var(--text); border: 1px solid var(--border); }
body.dark-mode .btn-cancel:hover { background: #334155; }
body.dark-mode .tab-btn:hover { background: #0f172a; color: var(--text); }
body.dark-mode .toggle-content { background: #0f172a; color: var(--text); border-color: var(--border); }
body.dark-mode .status-toggle:hover .toggle-content { background: #1e293b; border-color: #475569; }

/* Farebné highlight boxy v dark mode */
body.dark-mode .form-group[style*="background:#fffbeb"] { background: #1e293b !important; border-color: #fcd34d !important; }
body.dark-mode .form-group[style*="background:#fffbeb"] select { background: #0f172a !important; color: var(--text); }
body.dark-mode #unlockStatusBox { background: #1e293b !important; border-color: #fcd34d !important; }

body.dark-mode table { color: var(--text); border-color: var(--border); }
body.dark-mode th { background: #0f172a !important; color: var(--text); border-color: var(--border); }
body.dark-mode td { background: #1e293b !important; color: var(--text); border-color: var(--border); }

/* Globálne inputy v dark mode */
body.dark-mode input, 
body.dark-mode select, 
body.dark-mode textarea {
    background: #0f172a !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}

body.dark-mode .notif-green { background: rgba(34, 197, 94, 0.15); border-left-color: var(--success); }
body.dark-mode .notif-blue { background: rgba(59, 130, 246, 0.15); border-left-color: var(--info); }
body.dark-mode .notif-red { background: rgba(239, 68, 68, 0.15); border-left-color: var(--danger); }

/* ==========================================================================
   TLAČ (Print Styles)
   ========================================================================== */
@media print { 
    body { background: #fff; padding: 0; }
    .tab-nav, .header, .right-col, .btn, .btn-del, .btn-x, .upload-btns, .upload-zone-container, hr { display: none !important; } 
    
    .grid-main { display: block; }
    .card { border: none !important; box-shadow: none !important; padding: 0 !important; }
    
    .photo-grid { display: block; }
    .photo-card { 
        display: block; 
        border: none !important; 
        border-bottom: 1px dashed #ccc !important; 
        border-radius: 0; 
        box-shadow: none !important; 
        padding: 8px 0; 
        margin-bottom: 0; 
        break-inside: avoid;
    }
    
    .photo-card img { display: none !important; }
    
    .photo-info { padding: 0 !important; display: flex; flex-direction: row; align-items: center; gap: 20px; }
    .photo-info > div:first-child { font-size: 15px !important; color: #000 !important; width: 200px; }
    .photo-info .print-badge { border: 1px solid #000; background: transparent !important; color: #000 !important; }
}