:root {
    --bg-color: #000000;
    --text-color: #e0e0e0;
    --accent-color: #2d3436;
    /* Dark Gray */
    --accent-hover: #636e72;
    /* Lighter Gray */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --input-bg: rgba(20, 20, 20, 0.8);
    --highlight: #dfe6e9;
    /* White/Light Gray for active states */
}

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

body {
    font-family: 'Outfit', sans-serif;
    background: #000000;
    background-image:
        linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    color: var(--text-color);
    height: 100vh;
    overflow: hidden;
    display: flex;
}

.app-container {
    display: flex;
    width: 100%;
    height: 100%;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: #0a0a0a;
    border-right: 1px solid #333;
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.brand h1 {
    font-weight: 600;
    font-size: 1.5rem;
    margin-bottom: 40px;
    letter-spacing: 1px;
    color: #ffffff;
    text-transform: uppercase;
    border-bottom: 1px solid #333;
    padding-bottom: 20px;
}

.nav-btn {
    background: transparent;
    border: none;
    color: #666;
    width: 100%;
    padding: 15px;
    text-align: left;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-btn:hover {
    background: #1a1a1a;
    color: #fff;
}

.nav-btn.active {
    background: #ffffff;
    color: #000;
    font-weight: 600;
}

/* Main Content */
.content {
    flex: 1;
    position: relative;
    padding: 0;
    overflow: hidden;
    background: #000;
}

.generator-section {
    display: none;
    height: 100%;
    padding: 40px;
    gap: 30px;
    animation: fadeIn 0.4s ease;
}

.generator-section.active {
    display: flex;
    flex-direction: row;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Glass Panels -> Now Solid/Minimalist Dark Panels */
.glass-panel {
    background: #0f0f0f;
    border: 1px solid #333;
    border-radius: 0;
    /* Boxy look */
    padding: 30px;
    display: flex;
    flex-direction: column;
}

.controls {
    flex: 1;
    overflow-y: auto;
    max-width: 450px;
}

.preview {
    flex: 2;
    align-items: center;
    justify-content: center;
    background: #151515;
    background-image: radial-gradient(#333 1px, transparent 1px);
    background-size: 20px 20px;
}

h2 {
    margin-bottom: 25px;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 1.2rem;
    color: #888;
    border-bottom: 1px solid #333;
    padding-bottom: 10px;
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}

.row {
    display: flex;
    gap: 15px;
}

.row .form-group {
    flex: 1;
}

label {
    font-size: 0.8rem;
    color: #666;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

input,
select {
    background: var(--input-bg);
    border: 1px solid #333;
    color: white;
    padding: 12px;
    border-radius: 4px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.3s;
}

input:focus,
select:focus {
    border-color: #fff;
}

input[type="color"] {
    height: 45px;
    padding: 0;
    border: none;
    cursor: pointer;
    background: none;
}

.action-btn {
    margin-top: 20px;
    background: #ffffff;
    color: black;
    border: none;
    padding: 15px;
    border-radius: 0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: background 0.3s, transform 0.1s;
}

.action-btn:hover {
    background: #ccc;
}

.action-btn:active {
    transform: scale(0.98);
}

.download-btn {
    margin-top: 30px;
    background: transparent;
    border: 1px solid #666;
    color: #fff;
    padding: 10px 25px;
    border-radius: 0;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 2px;
}

.download-btn:not(:disabled):hover {
    border-color: #fff;
    background: #fff;
    color: #000;
}

.download-btn:disabled {
    border-color: #333;
    color: #333;
    cursor: not-allowed;
}

#qr-canvas-container canvas,
#barcode-svg {
    max-width: 100%;
    max-height: 500px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
    background: transparent;
    border-radius: 0;
    border: 1px solid #333;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #000;
}

::-webkit-scrollbar-thumb {
    background: #333;
}

/* --- Select2 Overrides for Dark Theme --- */
.select2-container--default .select2-selection--single {
    background-color: var(--input-bg) !important;
    border: 1px solid #333 !important;
    border-radius: 4px !important;
    height: 45px !important;
    display: flex !important;
    align-items: center !important;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: #fff !important;
    line-height: normal !important;
    padding-left: 12px !important;
}

.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 43px !important;
}

.select2-dropdown {
    background-color: #1a1a1a !important;
    border: 1px solid #333 !important;
    color: #fff !important;
}

.select2-container--default .select2-results__option--highlighted.select2-results__option--selectable {
    background-color: #333 !important;
    color: white !important;
}

.select2-container--default .select2-results__option[aria-selected="true"] {
    background-color: #222 !important;
}

.select2-search__field {
    background-color: #000 !important;
    color: #fff !important;
    border: 1px solid #333 !important;
}

/* Toggle Switch */
.toggle-wrapper {
    display: flex;
    align-items: center;
    margin-top: 5px;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #333;
    transition: .3s;
    border-radius: 4px;
    /* Square-ish for this theme */
    border: 1px solid #555;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: #888;
    transition: .3s;
    border-radius: 2px;
}

input:checked+.slider {
    background-color: #fff;
    border-color: #fff;
}

input:checked+.slider:before {
    transform: translateX(26px);
    background-color: #000;
}

/* Focus styles */
input:focus+.slider {
    border-color: #fff;
}