@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap');

:root {
    --primary-color: #4a90e2;
    --bg-color: #2c2f33;
    --card-bg-color: #23272a;
    --text-color: #ffffff;
    --text-muted-color: #99aab5;
    --border-color: #40444b;
    --success-color: #28a745;
    --stop-color: #dc3545;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    overflow-x: hidden;
}

.dashboard-container {
    display: flex;
    flex-wrap: wrap;
    min-height: 100vh;
}

.left-panel, .right-panel {
    padding: 20px;
    box-sizing: border-box;
}

.left-panel {
    flex: 2;
    min-width: 320px;
    display: flex;
    flex-direction: column;
}

.right-panel {
    flex: 1;
    min-width: 320px;
    background-color: var(--card-bg-color);
    border-left: 1px solid var(--border-color);
}

.header h1 {
    font-size: 2rem;
    margin: 0;
    color: var(--primary-color);
}
.header h1 i { margin-right: 10px; }
.header p {
    font-size: 1rem;
    color: var(--text-muted-color);
    margin-top: 5px;
}

.video-container {
    margin-top: 20px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    background-color: #000;
    flex-grow: 1;
    aspect-ratio: 4 / 3;
    display: flex;
    justify-content: center;
    align-items: center;
}

#result-image-live, #result-image-static {
    display: block;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 6px;
}

#video { 
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    opacity: 0;
}

.controls {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.controls button, .download-btn {
    padding: 10px 20px;
    font-size: 0.9rem;
    cursor: pointer;
    border-radius: 5px;
    border: none;
    color: white;
    font-weight: bold;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
}
.controls button i, .download-btn i { margin-right: 8px; }

#start-camera { background-color: var(--success-color); }
#start-camera:hover { background-color: #218838; }
.stop-btn { background-color: var(--stop-color); }
.stop-btn:hover { background-color: #c82333; }
.controls button:disabled { background-color: #5a6268; cursor: not-allowed; }

.card {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 25px;
}
.card h3 {
    margin-top: 0;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    font-weight: 400;
    font-size: 1.2rem;
}
.card h3 i { margin-right: 10px; }

#message-box p {
    font-size: 1rem;
    color: var(--text-muted-color);
    min-height: 40px;
    line-height: 1.5;
}

.chart-card {
    height: 280px;
}

.download-btn { background-color: var(--primary-color); flex-grow: 0; }
.download-btn:hover { background-color: #357abd; }
.download-btn.disabled { background-color: #5a6268; pointer-events: none; opacity: 0.6; }

.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 20px;
}
.tab-button {
    background: none;
    border: none;
    color: var(--text-muted-color);
    padding: 10px 15px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    border-bottom: 3px solid transparent;
    flex-grow: 1;
    text-align: center;
}
.tab-button.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}
.tab-content:not(.active) {
    display: none;
}

.static-input-container {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 15px;
    margin-bottom: 20px;
    background-color: var(--card-bg-color);
    padding: 20px;
    border-radius: 8px;
}
.file-label {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s;
    text-align: center;
}
.file-label:hover {
    background-color: #357abd;
}
#file-input { display: none; }
.or-divider { color: var(--text-muted-color); font-weight: bold; text-align: center; }
.url-area { display: flex; }
#url-input {
    padding: 12px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    border-radius: 5px 0 0 5px;
    flex-grow: 1;
    min-width: 0;
}
#url-submit-btn {
    padding: 12px 20px;
    border: none;
    background-color: var(--success-color);
    color: white;
    cursor: pointer;
    border-radius: 0 5px 5px 0;
}

.loader {
    border: 5px solid #f3f3f3;
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
}
@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* ============================================= */
/* ---        RESPONSIVE MEDIA QUERIES       --- */
/* ============================================= */

/* For tablets and smaller devices */
@media (max-width: 992px) {
    .dashboard-container {
        flex-direction: column;
    }

    .right-panel {
        border-left: none;
        border-top: 2px solid var(--border-color);
    }
    
    .loader {
        /* Re-center the loader for a single column layout */
        left: 50%;
        transform: translateX(-50%);
    }
}

/* For mobile phones */
@media (max-width: 576px) {
    .left-panel, .right-panel {
        padding: 15px;
    }

    .header h1 {
        font-size: 1.8rem;
    }

    .header p {
        font-size: 0.9rem;
    }

    .controls button, .download-btn {
        width: 100%;
    }

    .static-input-container {
        padding: 15px;
    }

    #url-input {
        font-size: 0.9rem;
    }

    .tab-button i {
        margin-right: 5px;
    }
}