:root {
    --bg-main: #090d16;
    --bg-card: #ffffff; /* Witte tegels voor goed contrast */
    --bg-control: rgba(15, 22, 36, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(59, 130, 246, 0.4);
    --text-main: #f1f5f9;
    --text-tile: #000000; /* Zwarte tekst op tegels */
    --text-muted: #94a3b8;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.25);
    --danger: #ef4444;
    --success: #22c55e;
    --warning: #f59e0b;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Scrollbar onzichtbaar maken maar functionaliteit behouden */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    background-image: url('wallpaper/standaard.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--text-main);
    margin: 0;
    padding: 24px;
    min-height: 100vh;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    transition: background-image 0.4s ease;
    scrollbar-width: none; /* Firefox scrollbar verbergen */
}

.container {
    max-width: 1650px;
    margin: 0 auto;
}

header {
    width: 100%;
    margin-bottom: 24px;
}

/* --- Control Bar --- */
.control-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-control);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 14px 22px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.5);
    box-sizing: border-box;
    width: 100%;
}

.control-left, .control-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.category-select-wrapper {
    position: relative;
}

#main-category-select {
    appearance: none;
    background: rgba(9, 13, 22, 0.7);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 9px 38px 9px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    outline: none;
    transition: var(--transition);
}

#main-category-select:hover {
    border-color: var(--border-hover);
}

#main-category-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.category-select-wrapper::after {
    content: '\f107';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    font-size: 0.8rem;
}

/* --- Buttons --- */
.btn {
    background: rgba(59, 130, 246, 0.12);
    color: var(--text-main);
    border: 1px solid rgba(59, 130, 246, 0.25);
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    box-shadow: none;
}

.btn:hover { 
    background: var(--accent); 
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 4px 12px var(--accent-glow);
    transform: translateY(-1px);
}

.btn:active { transform: translateY(0); }

.btn-edit-mode { 
    background: rgba(71, 85, 105, 0.3); 
    border-color: rgba(71, 85, 105, 0.5);
}
.btn-edit-mode:hover { 
    background: #475569; 
    border-color: #475569;
    box-shadow: 0 4px 12px rgba(71, 85, 105, 0.3);
}
.btn-edit-mode.active { 
    background: #d97706; 
    border-color: #d97706;
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.3);
}

.btn-manage { 
    background: rgba(124, 58, 237, 0.15); 
    border-color: rgba(124, 58, 237, 0.3);
}
.btn-manage:hover { 
    background: #7c3aed; 
    border-color: #7c3aed;
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

/* --- Grid & Tiles --- */
.grid-stack {
    margin-top: 10px;
}

.grid-stack > .grid-stack-item {
    padding: 0px !important;
}

.grid-stack-item-content {
    background: transparent !important;
    inset: 0px !important;
    position: absolute !important;
    overflow: hidden !important;
}

.tile-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden !important;
}

.tile {
    width: calc(100% - 16px) !important;
    height: calc(100% - 16px) !important;
    margin: 8px !important;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    background-color: var(--bg-card) !important;
    color: var(--text-tile) !important;
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 8px 24px -6px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    padding: 14px;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

.tile:hover {
    transform: translateY(-3px);
    background-color: #f8fafc !important;
    border-color: var(--border-hover);
    box-shadow: 0 12px 30px -6px rgba(0, 0, 0, 0.4), 0 0 15px rgba(59, 130, 246, 0.15);
}

.tile img {
    width: 42px;
    height: 42px;
    margin-bottom: 10px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.tile span {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 100%;
    color: var(--text-tile) !important;
}

.tile-fav-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    color: var(--warning);
    font-size: 0.75rem;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.1));
}

.tile-info-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    color: var(--text-muted);
    font-size: 0.75rem;
    transition: var(--transition);
}
.tile-info-badge:hover {
    color: var(--accent);
}

.delete-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    background: var(--danger);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    width: 26px;
    height: 26px;
    font-size: 0.75rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(239, 68, 68, 0.4);
    z-index: 20;
    transition: var(--transition);
}

.delete-btn:hover {
    background: #dc2626;
    transform: scale(1.05);
}

.edit-mode .delete-btn { display: flex; }
.edit-mode .grid-stack-item { cursor: grab; }
.edit-mode .grid-stack-item:active { cursor: grabbing; }
.edit-mode .tile {
    animation: pulse-shake 0.4s ease-in-out infinite alternate;
    border: 2px dashed #d97706;
}

@keyframes pulse-shake {
    0% { transform: rotate(0deg) scale(1); }
    100% { transform: rotate(0.6deg) scale(1.01); }
}

/* --- Modals --- */
.modal-backdrop {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(5, 8, 15, 0.82);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-sizing: border-box;
    animation: fadeIn 0.25s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
    background-color: #111827 !important;
    background: #111827 !important;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 600px; /* Verbreed naar 600px */
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    padding: 32px; /* Iets meer binnenruimte */
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7);
    box-sizing: border-box;
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.modal h3 {
    margin: 0 0 20px 0;
    font-size: 1.25rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 14px;
    color: var(--text-main);
    letter-spacing: -0.01em;
}

.modal form {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding-right: 2px;
    scrollbar-width: none; /* Firefox scrollbar verbergen */
}

.modal form::-webkit-scrollbar {
    display: none; /* Chrome/Safari scrollbar binnen modal verbergen indien niet nodig */
}

.form-group {
    margin-bottom: 18px;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 0.83rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.form-group-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 6px;
}

.form-group-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--warning);
    cursor: pointer;
}

.modal input[type="text"],
.modal input[type="password"],
.modal textarea,
.modal select {
    width: 100%;
    padding: 11px 14px;
    background: rgba(9, 13, 22, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 0.9rem;
    box-sizing: border-box;
    outline: none;
    font-family: inherit;
    transition: var(--transition);
}

.modal textarea {
    resize: vertical;
    min-height: 90px;
}

.modal input[type="text"]:focus,
.modal input[type="password"]:focus,
.modal textarea:focus,
.modal select:focus { 
    border-color: var(--accent); 
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: rgba(9, 13, 22, 0.9);
}

.modal input[type="color"] {
    -webkit-appearance: none;
    border: none;
    width: 100%;
    height: 42px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: none;
}

.modal input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.modal input[type="color"]::-webkit-color-swatch { border: 1px solid var(--border-color); border-radius: var(--radius-sm); }
.modal input[type="file"] { width: 100%; color: var(--text-muted); font-size: 0.85rem; padding: 4px 0; }

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.btn-secondary { 
    background: rgba(71, 85, 105, 0.3); 
    border-color: rgba(71, 85, 105, 0.4);
}
.btn-secondary:hover { 
    background: #475569; 
    border-color: #475569;
    box-shadow: 0 4px 12px rgba(71, 85, 105, 0.2);
}

.btn-success { 
    background: rgba(34, 197, 94, 0.2); 
    border-color: rgba(34, 197, 94, 0.4);
}
.btn-success:hover { 
    background: var(--success); 
    border-color: var(--success);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.cat-row {
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: rgba(9, 13, 22, 0.5);
    padding: 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 12px;
}
.cat-row-top {
    display: flex;
    align-items: center;
    gap: 8px;
}
.cat-row-top input { flex: 1; margin-bottom: 0 !important; }
.cat-pin-row, .cat-wallpaper-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.82rem;
    color: var(--text-muted);
}
.cat-pin-row input[type="password"] {
    padding: 6px 10px;
    font-size: 0.82rem;
    height: 32px;
    width: 130px;
}