:root {
    --accent: #bfff38;
    --bg-dark: #191919;
    --bg-light: #151515;
    --text: #ffffff;
}

:root[data-theme="light"] {
    --accent: #4a9c00;
    --bg-dark: #ffffff;
    --bg-light: #f0f0f0;
    --text: #121212;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px;
}

.container {
    max-width: 1920px;
    max-height: 1080px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 10px;
}

h1 {
    font-weight: 700;
    font-size: 20px;
}

h2 {
    font-weight: 200;
    font-size: 12px;
}

h3 {
    font-weight: 200;
    font-size: 8px;
}

.logo {
    color: var(--accent);
    margin-right: 10px;
    padding: 5px;
}

.upload-area {
    background-color: var(--bg-light);
    border: 2px dashed rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 12px 100px;
    margin-left: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--accent);
    background-color: rgba(191, 255, 56, 0.05);
    transform: translateY(-1px);
}

.upload-area.drag-over {
    border-style: solid;
    background-color: rgba(191, 255, 56, 0.1);
}

.upload-content {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text);
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.upload-area:hover .upload-content,
.upload-area.drag-over .upload-content {
    opacity: 1;
}

.upload-content svg {
    transition: transform 0.2s ease;
}

.upload-area:hover svg,
.upload-area.drag-over svg {
    transform: translateY(-2px);
    color: var(--accent);
}

#file-input {
    display: none;
}

main {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

@media (min-width: 768px) {
    main {
        flex-direction: row;
        border-radius: 12px;
    }
}

.preview-area {
    position: relative;
    width: 100%;
    max-width: 1200px;
    max-height: 1200px;
    margin: 0 auto;
    background: var(--bg-dark);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

#preview-canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

.loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--accent);
    font-size: 16px;
    display: none;
}

.control-panel {
    width: 100%;
    max-width: 350px;
    border-radius: 12px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    height: fit-content;
    overflow-y: auto;
    max-height: calc(100vh - 100px);
    border: 1px solid rgb(69, 69, 69);
    margin: 0px 10px 10px 10px;
}

.panel-section {
    background-color: var(--bg-dark);
    border-radius: 8px;
    padding: 16px;
    width: 100%;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.panel-header h3 {
    font-size: 14px;
    font-weight: 500;
    color: var(--accent);
    margin: 0;
    opacity: 0.9;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 6px;
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group label {
    margin-bottom: 2px;
    margin-top: 8px;
    font-size: 12px;
    color: var(--text);
    opacity: 0.8;
}

.slider-control {
    width: 100%;
    margin-bottom: 16px;
}

.slider-control .slider-container {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
}

.slider-control input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: #444444;
    border-radius: 2px;
    outline: none;
    margin-top: 10px;
}

.slider-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 15px;
    height: 15px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s;
}

.slider-control input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    border: 1px solid white;
}

.slider-value {
    min-width: 45px;
    text-align: right;
    font-size: 12px;
    color: var(--accent);
}

.color-control {
    padding: 16px;
}

.color-pickers-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    width: 100%;
}

.color-picker-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.color-preview {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid white;
    cursor: pointer;
    position: relative;
    transition: all 0.2s;
    overflow: hidden;
    background-color: var(--bg-dark);
    margin-top: 12px;
}

.color-preview:hover {
    transform: scale(1.1);
    box-shadow: 0 0 0 2px var(--bg-dark), 0 0 0 1px var(--accent);
}

input[type="color"] {
    opacity: 0;
    position: absolute;
    width: 48px;
    height: 48px;
    cursor: pointer;
}

#pattern-color-preview {
    background-color: #000000;
}

#overlay-color-preview {
    background-color: #ffffff;
}

/* Video controls styling - OS Style Dropdown */
.video-controls {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.video-controls h4 {
    font-size: 12px;
    color: var(--text);
    margin-bottom: 1px;
    opacity: 0.9;
}

.video-controls .control-group {
    background: var(--bg-dark);
    border-radius: 8px;
    padding: 12px;
}

.video-controls .radio-group.simple {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    border-radius: 4px;
}

.video-controls .radio-group.simple .radio-option {
    padding: 8px 12px;
    background: var(--bg-light);
    border: 1px solid rgb(42, 42, 42);
    border-radius: 4px;
    font-size: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    opacity: 0.9;
}

.video-controls .radio-group.simple .radio-option:hover {
    opacity: 1;
    border-color: var(--accent);
}

.video-controls .radio-group.simple .radio-option.active {
    background: var(--bg-dark);
    color: var(--accent);
    opacity: 1;
    border: 1px solid var(--accent);
}

.start-export-btn {
    width: 100%;
    background: var(--accent);
    color: var(--bg-dark);
    border: none;
    border-radius: 6px;
    padding: 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: all 0.2s;
    position: relative;
}

.start-export-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.start-export-btn.recording {
    background-color: #ff3838;
    animation: pulse 1.5s infinite;
    padding-left: 32px;
}

.start-export-btn.recording::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    background-color: var(--bg-dark);
    border-radius: 50%;
    animation: recordingPulse 1s infinite;
}

.recording-status {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: var(--bg-dark);
    border: 1px solid var(--accent);
    border-radius: 4px;
    margin-top: 8px;
    font-size: 12px;
    color: var(--accent);
}

.recording-status.active {
    display: flex;
}

.recording-status::before {
    content: '';
    width: 8px;
    height: 8px;
    background-color: #ff3838;
    border-radius: 50%;
    animation: recordingPulse 1s infinite;
}

.recording-status .time {
    margin-left: auto;
    font-family: monospace;
}

@keyframes recordingPulse {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
    100% {
        opacity: 1;
    }
}

/* Panel Header Styles */
.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
    padding: 8px 8px 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.panel-header h3 {
    font-size: 14px;
    font-weight: 500;
    color: grey;
    margin: 0;
    opacity: 0.9;
}

.toggle-panel {
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.5;
    transition: all 0.2s ease;
    position: absolute;
    right: 0;
    top: 0%;
    transform: translateY(-20%);
}

.toggle-panel:hover {
    opacity: 0.8;
    color: var(--accent);
}

.toggle-panel:hover svg {
    transform: translateX(-2px);
}

.toggle-panel svg {
    transition: all 0.2s ease;
    display: flex;
    transform: translateX(0);
}

.toggle-panel.collapsed svg {
    transform: rotate(-90deg);
}

.toggle-panel.collapsed:hover svg {
    transform: rotate(-90deg) translateY(-2px);
}

/* Panel Content Transitions */
.video-controls,
.effect-controls {
    transition: all 0.3s ease;
    max-height: 1000px;
    opacity: 1;
    overflow: visible;
    width: 100%;
    padding: 8px 0;
}

.video-controls.collapsed,
.effect-controls.collapsed {
    max-height: 0;
    opacity: 0;
    margin: 0;
    padding: 0;
    pointer-events: none;
    width: 100%;
}

/* Hide default radio button */
input[type="radio"] {
    display: none;
}

.pattern-control .radio-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    width: 100%;
}

/* Simplified radio options for better UX */
.pattern-control .radio-group label {
    flex: 1;
    min-width: 80px;
    text-align: center;
    padding: 8px 12px;
    background: var(--bg-dark);
    border: 1px solid rgb(42, 42, 42);
    border-radius: 4px;
    font-size: 13px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.pattern-control .radio-group label:hover {
    border-color: var(--accent);
    background: rgba(191, 255, 56, 0.05);
}

.pattern-control .radio-group label.active {
    background: var(--accent);
    color: var(--bg-dark);
}

@media (max-width: 480px) {
    .pattern-control .radio-group {
        flex-direction: column;
    }
    
    .pattern-control .radio-group label {
        width: 100%;
    }
}

.radio-option {
    position: relative;
    background-color: var(--bg-light);
    border: 1px solid rgb(42, 42, 42);
    border-radius: 6px;
    padding: 12px 24px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
    font-size: 12px;
    color: var(--text);
}

.radio-option:hover {
    border-color: var(--accent);
    background-color: rgba(125, 125, 125, 0.05);
}

.radio-option.active {
    border-color: var(--accent);
    color: var(--accent);
}

.pattern-control .radio-option::before {
    display: none;
    background-color: var(--accent);
}

.export-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    width: 100%;
    margin-bottom: 10px;
}

.export-options button {
    background-color: var(--accent);
    color: var(--bg-dark);
    border: none;
    border-radius: 6px;
    padding: 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.export-options button:hover:not(.disabled) {
    opacity: 0.9;
    transform: translateY(-1px);
}

.export-options button.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.collapse-arrow {
    transition: transform 0.2s ease;
}

#export-video.active .collapse-arrow {
    transform: rotate(180deg);
}

.video-export-config {
    display: none;
    margin-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 16px;
}

.video-export-config.show {
    display: block;
}

.video-controls {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.video-controls h4 {
    font-size: 12px;
    color: var(--text);
    margin-bottom: 8px;
    opacity: 0.8;
}

.video-controls .control-group {
    background: var(--bg-dark);
    border-radius: 8px;
    padding: 12px;
}

.video-controls .radio-group.simple {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.video-controls .radio-group.simple .radio-option {
    flex: 1;
    min-width: 80px;
    padding: 8px 12px;
    background: var(--bg-light);
    border: 1px solid transparent;
    border-radius: 4px;
    font-size: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    opacity: 0.8;
}

.video-controls .radio-group.simple .radio-option:hover {
    opacity: 1;
    border-color: var(--accent);
}

.video-controls .radio-group.simple .radio-option.active {
    background: var(--bg-dark);
    color: var(--accent);
    opacity: 1;
    border: 1px solid var(--accent);
}

.start-export-btn {
    width: 100%;
    background: var(--accent);
    color: var(--bg-dark);
    border: none;
    border-radius: 6px;
    padding: 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: all 0.2s;
}

.start-export-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.start-export-btn.recording {
    background-color: #ff3838;
    animation: pulse 1.5s infinite;
}

.start-export-btn.recording::before {
    content: '⚫ ';
    color: var(--bg-dark);
    animation: pulse 1s infinite;
}

@media (max-width: 480px) {
    .export-options {
        grid-template-columns: 1fr;
    }

    .video-controls .radio-group.simple {
        flex-direction: column;
    }

    .video-controls .radio-group.simple .radio-option {
        width: 100%;
        min-width: 100%;
    }
}

/* Animation styles */
@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

.loading-indicator {
    animation: pulse 1.5s infinite;
}

button.recording {
    background-color: #ff3838;
    animation: pulse 1.5s infinite;
}

button.recording::before {
    content: '⚫ ';
    color: white;
    animation: pulse 1s infinite;
}

/* Theme toggle styles */
.theme-toggle {
    position: relative;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: none;
    border: 2px solid var(--text);
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    margin-left: auto;
    margin-right: 20px;
    padding: 0;
}

.theme-toggle:hover {
    transform: scale(1.1);
    border-color: var(--accent);
    color: var(--accent);
}

.theme-toggle svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
}

.tutorial-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-light);
    z-index: 10;
    opacity: 1;
    transition: all 0.3s ease;
    cursor: pointer;
}

.tutorial-overlay:hover {
    background-color: var(--bg-dark);
}

.tutorial-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.tutorial-content {
    padding: 32px;
    border-radius: 12px;
    border: 2px dashed rgba(255, 255, 255, 0.1);
    max-width: 400px;
    text-align: center;
    transition: all 0.2s ease;
}

.tutorial-overlay:hover .tutorial-content {
    border-color: var(--accent);
    background-color: rgba(191, 255, 56, 0.05);
    transform: translateY(-2px);
}

.upload-icon {
    margin-bottom: 16px;
}

.upload-icon svg {
    color: var(--accent);
    opacity: 0.8;
    transition: all 0.2s ease;
}

.tutorial-overlay:hover .upload-icon svg {
    transform: translateY(-4px);
    opacity: 1;
}

.tutorial-content h3 {
    color: var(--accent);
    font-size: 16px;
    margin-bottom: 24px;
    font-weight: 500;
}

.tutorial-steps {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.tutorial-steps ol {
    list-style-position: inside;
    color: var(--text);
    text-align: left;
}

.tutorial-steps li {
    margin: 12px 0;
    font-size: 14px;
    opacity: 0.7;
    line-height: 1.4;
}

#tutorial-file-input {
    display: none;
}

.tutorial-overlay.drag-over .tutorial-content {
    border-style: solid;
    border-color: var(--accent);
    background-color: rgba(191, 255, 56, 0.1);
    transform: translateY(-4px);
}

/* Ensure scrollable areas have smooth scrolling */
.control-panel,
.video-config-modal {
    scrollbar-width: thin;
    scrollbar-color: var(--accent) var(--bg-dark);
}

.control-panel::-webkit-scrollbar,
.video-config-modal::-webkit-scrollbar {
    width: 6px;
}

.control-panel::-webkit-scrollbar-track,
.video-config-modal::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

.control-panel::-webkit-scrollbar-thumb,
.video-config-modal::-webkit-scrollbar-thumb {
    background-color: var(--accent);
    border-radius: 3px;
}