:root {
    --bg-color: #121212;
    --text-color: #f1f1f1;
    --good-color: #4ade80;
    --error-color: #ef4444;
    --panel-bg: #1e1e1e;
    --shift-color: #fbbf24;
    --recovering-color: #f97316;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

#app-container {
    width: 100%;
    max-width: 1600px; 
    background-color: var(--panel-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

header {
    text-align: center;
    margin-bottom: 25px;
}

header h1 {
    font-size: 26px;
    margin-bottom: 5px;
}

header p {
    color: #a0a0a0;
    font-size: 15px;
}

main {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    align-items: flex-start;
}

#video-wrapper {
    position: relative;
    flex-grow: 1;
    width: 100%;
    max-width: 1100px; 
    aspect-ratio: 16 / 9;
    background-color: #050505;
    border-radius: 8px;
    overflow: hidden;
    transform: scaleX(-1); 
    display: flex;
    justify-content: center;
    align-items: center;
}

#webcam, #output_canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain; 
}

#output_canvas {
    z-index: 10; 
}

#controls {
    display: flex;
    flex-direction: column;
    gap: 15px;
    flex-basis: 400px;
    background: rgba(255,255,255,0.03);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
}

#controls h3 {
    margin-bottom: 5px;
    font-size: 18px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 10px;
}

#shift-indicator {
    width: 100%;
    text-align: center;
    padding: 8px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: bold;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.badge-inactive {
    background-color: rgba(255,255,255,0.05);
    color: #666;
}

.badge-active {
    background-color: var(--shift-color);
    color: #000;
    box-shadow: 0 0 10px rgba(251, 191, 36, 0.3);
}

#rule-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

#rule-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
    transition: all 0.2s ease;
    border-left: 4px solid var(--good-color);
}

#rule-list li.error {
    background: rgba(239, 68, 68, 0.1);
    border-left-color: var(--error-color);
}

#rule-list li.error .status-badge {
    background-color: var(--error-color);
    color: white;
}

#rule-list li.recovering {
    background: rgba(249, 115, 22, 0.1);
    border-left-color: var(--recovering-color);
}

#rule-list li.recovering .status-badge {
    background-color: var(--recovering-color);
    color: white;
}

#rule-list label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14.5px;
    cursor: pointer;
    width: 80%;
    font-weight: 500;
}

.status-badge {
    background-color: var(--good-color);
    color: #000;
    font-size: 12px;
    font-weight: bold;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
    min-width: 45px;
    text-align: center;
}

/* Advanced Settings Accordion */
#advanced-settings {
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    margin-top: 10px;
}

#advanced-settings summary {
    padding: 12px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    outline: none;
    user-select: none;
    color: #a0a0a0;
    transition: color 0.2s;
}

#advanced-settings summary:hover {
    color: white;
}

.advanced-content {
    padding: 0 15px 15px 15px;
}

.slider-group {
    margin-top: 15px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.slider-group label {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: #ccc;
    width: 100%;
}

.slider-group span {
    font-weight: bold;
    color: var(--shift-color);
}

input[type=range] {
    width: 100%;
    cursor: pointer;
    accent-color: var(--shift-color);
}

/* Buttons */
button {
    padding: 14px;
    font-size: 15px;
    font-weight: bold;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary {
    background-color: #3b82f6;
    color: white;
    margin-top: auto;
}

.btn-primary:hover {
    background-color: #2563eb;
}

.btn-secondary {
    background-color: #4b5563;
    color: white;
    width: 100%;
    margin-top: 20px;
    padding: 10px;
    font-size: 13px;
}

.btn-secondary:hover {
    background-color: #374151;
}