:root{--primary: #003366;--primary-hover: #002244;--bg-main: #F4F4F4;--card-bg: #FFFFFF;--text-main: #1a1a1a;--text-muted: #535c68;--accent-sky: #87CEEB;--accent-turquoise: #40E0D0;--accent-green: #2ecc71;--accent-blue: #3498db;--accent-orange: #e67e22;--accent-red: #e74c3c;--shadow: 0 4px 20px rgba(0, 51, 102, .08)}*{box-sizing:border-box}body{margin:0;padding:0;background-color:var(--bg-main);color:var(--text-main);-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}.app-container{max-width:500px;margin:0 auto;width:100%;padding:20px;flex:1}.glass-card{background:var(--card-bg);border:1px solid rgba(0,51,102,.1);border-radius:20px;padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}.btn-primary{background:var(--primary);border:none;border-radius:12px;color:#fff;padding:16px 24px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center;gap:12px;width:100%;letter-spacing:.5px}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-primary:active{transform:scale(.97)}.btn-secondary{background:#f8f9fa;border:1px solid #dee2e6;border-radius:12px;color:var(--primary);padding:12px 20px;font-size:15px;font-weight:600;cursor:pointer}.btn-secondary:hover{background:#e9ecef}.food-card{display:flex;justify-content:space-between;align-items:center;padding:16px;background:#f8faff;border-left:4px solid var(--accent-turquoise);border-radius:12px;margin-bottom:12px}.macro-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}.macro-box{text-align:center;padding:12px 8px;border-radius:12px;background:#fff;border:1px solid #edf2f7}.macro-value{display:block;font-size:18px;font-weight:700}.macro-label{display:block;font-size:12px;color:var(--text-muted);text-transform:uppercase}.loading-spinner{width:40px;height:40px;border:4px solid rgba(255,255,255,.1);border-left-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto}@keyframes spin{to{transform:rotate(360deg)}}.camera-preview{width:100%;border-radius:20px;overflow:hidden;background:#000;aspect-ratio:4/3;margin-bottom:20px;position:relative}.camera-preview video{width:100%;height:100%;object-fit:cover}