:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    
    /* Light mode variables */
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --panel-bg: rgba(255, 255, 255, 0.95);
    --panel-border: rgba(255, 255, 255, 0.2);
    --text-color: #333;
    --design-item-bg: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --design-item-border: #667eea;
    --control-panel-bg: rgba(255, 255, 255, 0.9);
    --canvas-bg: white;
    --canvas-border: #ddd;
}

/* background: var(--primary-gradient); */

[data-theme="dark"] {
    /* Black base with fluorescent green highlights */
    --bg-gradient2: linear-gradient(135deg, #000000 0%, #000000 100%);
    --panel-bg: rgba(0, 0, 0, 0.9);
    --panel-bg2: rgb(30, 40, 40, 1.0);
    --panel-border2: rgba(57, 255, 20, 0.4);
    --text-color: #39ff14; /* Fluorescent green */
    --design-item-bg: linear-gradient(135deg, #111111 0%, #000000 100%);
    --design-item-bg1: rgba(57, 255, 20, 0.4);
    --design-item-border: #39ff14;
    --control-panel-bg: rgba(0, 0, 0, 0.85);
    --canvas-bg: #000000;
    --canvas-border: #39ff14;
}

[data-theme="dark"] body {
    background: var(--bg-gradient2);
}

[data-theme="dark"] hr {
    background-color: rgb(57, 255, 20);
    height: 2px;
    width: 100%;
}

[data-theme="dark"] .watermark {
    color: rgba(255, 255, 255, 1.0);
}

[data-theme="dark"] .menu-header {
    /* background: var(--primary-gradient2); */
    background: var(--panel-bg2);
    color: rgb(57, 255, 20);
}

[data-theme="dark"] .design-panel {
    /* border: 10px solid var(--panel-border2); */
    border: 1px solid #39ff14;
}

[data-theme="dark"] .submenu-header, [data-theme="dark"] .submenu-header-1 {
    background: var(--panel-bg2);
    color: rgb(57, 255, 20);
}

[data-theme="dark"] .design-item {
    background: var(--panel-bg2);
}

/* Glow effect for interactive elements */
[data-theme="dark"] .design-item:hover {
    border-color: #39ff14;
    box-shadow: 0 0 12px #39ff14;
}

[data-theme="dark"] .envelope-canvas:hover {
    border-color: #39ff14;
    box-shadow: 0 0 20px rgba(57, 255, 20, 0.8);
}

[data-theme="dark"] .envelope-element:hover {
    border-color: #39ff14;
    box-shadow: 0 0 10px #39ff14;
}

[data-theme="dark"] .envelope-element.selected {
    border-color: #39ff14;
    box-shadow: 0 0 20px rgba(57, 255, 20, 0.9);
}

/* Buttons in neon green */
[data-theme="dark"] .export-btn {
    background: linear-gradient(135deg, #39ff14, #00cc00);
    color: black;
    box-shadow: 0 0 10px #39ff14;
}

[data-theme="dark"] .export-btn:hover {
    box-shadow: 0 0 15px #39ff14;
    transform: scale(1.05);
}

/* Theme toggle in neon style */
[data-theme="dark"] .theme-toggle {
    background: rgba(57, 255, 20, 0.1);
    border-color: rgba(57, 255, 20, 0.4);
    color: #39ff14;
}

[data-theme="dark"] .theme-toggle:hover {
    background: rgba(57, 255, 20, 0.2);
    box-shadow: 0 0 10px #39ff14;
}

/* Form controls neon styling */
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-range {
    background-color: rgba(0, 0, 0, 0.8);
    border-color: rgba(57, 255, 20, 0.5);
    color: #39ff14;
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: rgba(0, 0, 0, 0.9);
    border-color: #39ff14;
    box-shadow: 0 0 8px rgba(57, 255, 20, 0.8);
}

[data-theme="dark"] .form-label {
    color: #39ff14;
}

[data-theme="dark"] .text-muted {
    color: rgba(57, 255, 20, 0.6) !important;
}

/* Scrollbar neon */
[data-theme="dark"] .scroll-container::-webkit-scrollbar-thumb {
    background: #39ff14;
    box-shadow: 0 0 6px #39ff14;
}

[data-theme="dark"] .modal-content {
    background-color: rgba(0, 0, 0, 0.9);
    color: #39ff14;
}

[data-theme="dark"] .modal-btn-close {
    filter: invert(70%) sepia(100%) saturate(500%) hue-rotate(80deg);
}

[data-theme="dark"] .emoji-om {
    color: #39ff14;
}

.emoji-om {
    color: #000000;
}

[data-theme="dark"] a {
    color: #39ff14;
    /* text-decoration: none; */
}

.ms-0x {
    padding-top: 5px;
    margin-left: -22.5px;
}

a {
    color: white;
    /* text-decoration: none; */
}

#customMenu {
  display: none;
  position: absolute;
  background: white;
  border: 1px solid #ccc;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  padding: 5px 0;
  z-index: 1000;
}

#customMenu button {
  display: block;
  width: 100%;
  border: none;
  background: none;
  padding: 6px 12px;
  text-align: left;
  cursor: pointer;
}

#customMenu button:hover {
  background: #eee;
}

/* :root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --panel-bg: rgba(255, 255, 255, 0.95);
    --panel-border: rgba(255, 255, 255, 0.2);
    --text-color: #333;
    --design-item-bg: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --design-item-border: #667eea;
    --control-panel-bg: rgba(255, 255, 255, 0.9);
    --canvas-bg: white;
    --canvas-border: #ddd;
} */

/* [data-theme="dark"] {
    --bg-gradient: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    --panel-bg: rgba(52, 73, 94, 0.85);
    --panel-border: rgba(255, 255, 255, 0.08);
    --text-color: #ecf0f1;
    --design-item-bg: linear-gradient(135deg, #546778 0%, #5a6c7d 100%);
    --design-item-border: #7fb3d3;
    --control-panel-bg: rgba(52, 73, 94, 0.8);
    --canvas-bg: white;
    --canvas-border: #ddd;
} */

body {
    background: var(--bg-gradient);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.design-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(10px);
    /*border-radius: 20px;*/
    border-radius: 5px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    height: calc(100vh - 40px);
    overflow-y: auto;
    border: 1px solid var(--panel-border);
    transition: all 0.3s ease;
}

.envelope-canvas {
    background: var(--canvas-bg);
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    position: relative;
    width: 100%;
    height: 400px;
    margin: 20px 0;
    overflow: hidden;
    border: 2px dashed var(--canvas-border);
    transition: all 0.3s ease;
}

.envelope-canvas:hover {
    border-color: #667eea;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.2);
}

.envelope-element {
    position: absolute;
    cursor: move;
    user-select: none;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

.envelope-element:hover {
    border-color: #667eea;
    transform: scale(1.02);
}

.envelope-element.selected {
    border-color: #f5576c;
    box-shadow: 0 0 15px rgba(245, 87, 108, 0.4);
}

.design-item {
    cursor: grab;
    /* padding: 15px; */
    padding: 10px;
    margin: 10px 0;
    background: var(--design-item-bg);
    /*border-radius: 12px;*/
    border-radius: 10px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.design-item-1 {
    cursor: grab;
    /* padding: 15px; */
    padding: 10px;
    margin: 10px 0;
    background: var(--panel-bg2);
    /*border-radius: 12px;*/
    border-radius: 10px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.design-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    transition: left 0.5s;
}

[data-theme="dark"] .design-item::before {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
}

.design-item:hover {
    transform: translateY(-3px);
    border-color: var(--design-item-border);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .design-item:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    border-color: #7fb3d3;
}

.design-item:hover::before {
    left: 100%;
}

.design-item:active {
    cursor: grabbing;
    transform: scale(0.98);
}

.menu-header {
    background: var(--primary-gradient);
    color: white;
    padding: 20px;
    margin: -15px -15px 20px -15px;
    /*border-radius: 20px 20px 0 0;*/
    border-radius: 5px 5px 0 0;
    /*text-align: center;*/
    text-align: left;
}

.submenu-header {
    background: var(--secondary-gradient);
    color: white;
    padding: 12px 15px;
    margin: 15px -10px 15px -10px;
    border-radius: 5px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.submenu-header-1 {
    background: var(--secondary-gradient);
    color: white;
    padding: 12px 15px;
    /*padding: 15px 15px;*/
    /*margin: 15px -15px 15px -15px;*/
    margin: 0px -15px 15px -15px;
    /*border-radius: 10px;*/
    border-radius: 5px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.control-panel {
    background: var(--control-panel-bg);
    /*border-radius: 15px;*/
    border-radius: 5px;
    padding: 20px;
    margin: 20px 0;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.control-panel-1 {
    background: var(--control-panel-bg);
    /*border-radius: 15px;*/
    border-radius: 5px;
    padding: 20px;
    margin: 0px 0;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

[data-theme="dark"] .control-panel {
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.export-btn {
    background: var(--success-gradient);
    border: none;
    color: white;
    /*padding: 12px 30px;*/
    padding: 6px 10px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    /*text-transform: uppercase;*/
    letter-spacing: 1px;
}

.export-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(79, 172, 254, 0.4);
    color: white;
}

[data-theme="dark"] .export-btn:hover {
    box-shadow: 0 8px 20px rgba(79, 172, 254, 0.3);
}

.text-element {
    background: rgba(255, 255, 255, 0.9);
    padding: 8px 12px;
    border-radius: 6px;
    font-family: 'Arial', sans-serif;
    min-width: 100px;
    backdrop-filter: blur(5px);
}

.shape-element {
    border-radius: 50%;
    background: linear-gradient(45deg, #667eea, #764ba2);
}

.pattern-element {
    background-size: cover;
    background-position: center;
    border-radius: 8px;
}

.envelope-canvas .watermark {
    position: absolute;
    bottom: 10px;
    right: 10px;
    font-size: 12px;
    color: rgba(0, 0, 0, 0.3);
    pointer-events: none;
}

.color-picker {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid white;
    cursor: pointer;
    margin: 5px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.color-picker:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
    .envelope-canvas {
        height: 300px;
    }
    
    .design-panel {
        height: auto;
        margin-bottom: 20px;
    }
}

.scroll-container {
    max-height: 300px;
    overflow-y: auto;
}

.scroll-container::-webkit-scrollbar {
    width: 6px;
}

.scroll-container::-webkit-scrollbar-track {
    background: var(--design-item-bg);
    border-radius: 10px;
}

.theme-toggle {
    /*position: absolute;*/
    top: 15px;
    right: 15px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    padding: 8px 15px;
    color: white;
    cursor: pointer;
    transition: all 0.4s ease;
    font-size: 14px;
    backdrop-filter: blur(10px);
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.05);
}

/* [data-theme="dark"] .theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .theme-toggle:hover {
    background: rgba(255, 255, 255, 0.18);
} */

/* Form controls styling for dark mode - More subtle */
[/* data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-range {
    background-color: rgba(84, 103, 120, 0.6);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-color);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: rgba(84, 103, 120, 0.8);
    border-color: #7fb3d3;
    color: var(--text-color);
    box-shadow: 0 0 0 0.2rem rgba(127, 179, 211, 0.25);
}

[data-theme="dark"] .form-label {
    color: var(--text-color);
    font-weight: 500;
}

[data-theme="dark"] .text-muted {
    color: rgba(236, 240, 241, 0.7) !important;
} */

/* Subtle theme transition */
* {
    transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease !important;
}

.scroll-container::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 10px;
}