:root {
    --primary: #ff4b2b;
    --primary-gradient: linear-gradient(135deg, #ff416c, #ff4b2b);
    --bg-dark: #0f172a;
    --glass-bg: rgba(15, 23, 42, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-light: #f8fafc;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

.app-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #000;
}

.input_video {
    display: none;
}

.output_canvas {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    transform: scaleX(-1);
}

.ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2rem 1.5rem;
    pointer-events: none;
}

.header {
    text-align: center;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 1rem;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    animation: slideDown 0.5s ease-out;
}

.header h1 {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.2rem;
}

.header p {
    font-size: 0.85rem;
    opacity: 0.8;
}

.stats-container {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.stat-box {
    flex: 1;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 1.5rem 1rem;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

.stat-box.highlight {
    background: rgba(255, 75, 43, 0.2);
    border-color: var(--primary);
    transform: scale(1.05);
}

.stat-box.success {
    background: rgba(34, 197, 94, 0.2);
    border-color: #22c55e;
}

.label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    opacity: 0.8;
    margin-bottom: 0.5rem;
}

.value {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
}

.status-box .value {
    font-size: 1.8rem;
    padding-top: 0.5rem;
}

.feedback-message {
    text-align: center;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 1rem;
    border-radius: 16px;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.loading-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    z-index: 50;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-left-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

@keyframes slideDown {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}